MAKING CABLES! (wiring for street legality)
Wiring is pretty crucial for an EV, as you can imagine. The Flux Cap had had its high voltage cabling plumbed in by Olly Young at Current Racing earlier in the year, so now it was time for the remainder of the loom to get refreshed.
By remainder I mean the low voltage 12-volt stuff required for MoT. Headlights, indicators, horn, that kind of thing.
After he did such a decent job on my (less eco warrior) old Dodge Charger John Mills at Allcar Electrics (07710 163131) in Wisbech came to right all wiring wrongs.
After a 15 minute poke about, it was decided by John that a bespoke new loom would be quickest and most reliable solution. During the course of a day he first removed the entire factory loom. You can just about see it there on the floor…
… Then he copied the
OEM look and route of the original wiring harness, but did away any unnecessary
extras (by that I mean stuff beyond the MoT basics). It doesn't look too exciting, but it is. For me at least.
At the same time John converted the Enfield to run LED bulbs and, by using thinner gauge modern wire, whittled down the weight of the wiring harness by some 6-kilos. He put it on scales to prove it!
He wires a lot of classic rally cars so he’s a bit anal about weight. Put it like this, he convinced me to downscale from dual tone horns to a single horn. And yeah, the old radio has gone. Less weight, innit.
But probably the
cleverest touch that John did was to re-use a few of the redundant dashboard
switches for alternative purposes. For example, the heated rear window switch
is now the Moroso Anti-roll line-lock solenoid…. which locks the front brakes
for tyre warming rwd burnouts. I didn’t need a heated rear window any more.
It may look standard still, but don't believe all those buttons.
The Enfield’s rear lights were Hillman Imp items, so I managed to source a better secondhand set via the extremely friendly Retro Rides forum. I managed to make four good ‘uns out of eight slightly rubbish ones. On the outside they are 100% original, but inside lurks the LED technology.
Because the car’s main power will be in excess of 300-volts, the 12-volt stuff will run on a separate circuit – just like the Enfield originally did. I’ve found a neat little Yuasa NP17-12 motorcycle gel battery which is slim (181x76x167mm) and light enough (6kg) to mount smug inside the glovebox recess. I’ve put it next to my old Audi GT battery to show the size difference.
This obviously won’t get charged by the Enfield’s main system so it can be charged by a portable solar panel or mains conditioner when the car’s not being use. Being largely a race car, it isn’t important to me to use the lights and wipers for hours on end.
In about a week from now my special lightweight polycarbonate windscreen will have emerged from the moulds at Plastics 4 Performance. More on that v soon folks. Thank you for reading. I was hoping to have the car running this year but several dilemmas and delays with sourcing the correct battery packs has proved far harder than I originally planned. Hey ho. Looking forward to running it in anger in 2014!
I bought my Enfield 8000 back at the start of 2012 as a non-running project. It was perfect for what I wanted, because the dead electrics were going to be removed to make way for cutting-edge digitally controlled motors and batteries.
However, as modern as the guts of my street legal Flux Capacitor are, I always wanted to retain originality to the bodywork and interior. In custom car terms I suppose it would be classed as a ‘Resto Mod’; restored unmodified bodyshell (no wider arches, no additional louvres or modern upholstery) but with uprated brakes, suspension and the addition of such safe things as a full roll cage.
One aspect of my Enfield which were utterly repulsive was the incorrect (Ford Fiesta) plastic bumpers as fitted by a previous-previous owner, presumably in an effort to modernise the little Enfield. They didn’t. They looked shite.
The plastic bumpers immediately kissed the bottom of the bin whilst I began searching for a pair of steel originals. And I searched. And I searched. Turns out that they are slightly rarer than extinct, possibly helped by the fact that of the 120 Enfields made worldwide in the ‘70s, probably less than 40 have survived. Parts are a bit difficult to sniff out.
The solution was to have replicas made. But before I could do that an original pair had to be found. After getting in touch with the BVS (Battery Vehicle Society) - and also a piece on the Flux Cap I wrote for the Sunday Times - I discovered of the handful of road worthy Enfields in Britain, one of the most active resided in Peterborough, less than 15 miles from my house.
This blue example is regularly used for urban tooling about by owner John Parkinson, a retired electrical forklift engineer. John was only too happy to invite me over for a coffee, natter and chance to have my first ride in a factory stock Enfield 8000. It was pretty cool, I have to say. I took a couple of shaky home videos which you can view here
John has owned the car since 1980 and enjoys confusing people at local classic car shows. He trusted me enough to unbolt his steel bumpers and lend them to me for a month. That’s when I realised I ought to have glassfibre moulds made. Glassfibre wouldn’t look any different to steel once painted, plus they’d be lighter than the originals – ideal for a race car.
Rob at East Coast Buggies is a bit handy with his glassfibre skills. As such I approached him for the job of making a master moulds. He set aside his normal beach buggy body jobs and made these for me:
Thankfully the Enfield bumpers aren’t very complex, so Rob managed to bond brackets onto the back of each bumper
Then Tim at Roadhouse Retro fillered any imperfections…
… before gunning on satin black paint.
It turns out Enfield 8000s were sold with either black, white or silver painted headlight rims and bumpers. Mine originally was a white car with silver, but I opted for black to contrast against the Yellow Ochre paintwork. Here’s some retro Instagram-spec piccies of it now, together with a shot of one of the earliest Enfields leaving the ship yard assembly plant in Greece.
I’ve uploaded this black and white pic before, but in case you missed it here is what my Enfield looked like when new in ’74 (when it was a test vehicle for the SEEboard (South East Electricity) in the Brighton area
Next blog will detail the recent rewire of all the 12-volt street legal bits, together with details on the tyres and a shiny new polycarbonate windscreen.
Thanks again to everyone who has followed the project with enthusiasm, and of course to my sponsors Adrian Flux Insurance, npower energy and Red Maple IT consultants.
STOP FOR A BRAKE.
Because it was designed to live in the urban jungle and never travel beyond 40mph, the Enfield 8000’s 7-inch (non servo assisted) drum brakes seemed perfectly satisfactory in 1974…
…but they were never going to be too useful on my Flux Capacitor project. For although it will weigh significantly less than the lead-acid batt laden 975kg original, mine will probably be crossing the quarter mile drag strip finish line north of 100mph. And then you have to stop the thing before you run out of road.
The Enfield’s 7-inch rear drum brakes had already been binned when Webster Race Engineering remodelled the rear chassis to fit the new custom built Ford 9-inch race axle. This came complete with beefy drums capable of stopping something made in Detroit weighing closer to two tons. Pretty substantial, then.
The front end was a bit more complicated. We saw no reason to seriously alter the Hillman Imp front wishbone suspension, as it is strong and easy to set-up since fitting the AVO adjustable dampers/springs.
The problem lay with the fact that Hillman Imps were never fitted with disc brakes, and we needed disc brake stopping power up front. I don’t know when the last time you looked, but there aren’t many rear wheel drive cars in the world that have 10-inch wheels.
After dismantling the hub assembly and doing weeks of head scratching (pretending to know what to do), I was put in touch with performance brake gurus AP Racing, who loved the Flux Capacitor and were happy to get involved upgrading its anchors.
AP is a name that can be found on many race cars throughout the world, and what those guys don’t know about stopping isn’t worth worrying about. AP expert engineer Kevin McDonnell then discussed my project at length with one of their distributors BG Developments.
I have to take my hat off to BG Developments (01527 873716) boss David Fuller, who really went out of his way to help. Based in Bromsgrove, these guys specialise in custom machining or restoring older car brake systems. Back in time they were charged with building the brakes on Ford’s original GT40s, and not long ago were recommissioning the anchors on Tyrrell’s ground-breaking six wheeler P34 Formula One car.
David asked me to post him a wheel, the hub and stub axle assembly – then give him two weeks. Sure enough, a fortnight later BG Developments had created something truly amazing. David personally drove the parts to my house and we sat down over a cuppa to admire a disc brake conversion that was so pretty it was almost a crime that most of it will forever be hidden behind a wheel.
So how did BG
Developments make a disc conversion from scratch for an oddball car with small
wheels (albeit upgraded from 10-inch to 12-inch front rims)? Simple really.
They machined up bespoke 267mm x 10mm cast iron disc rotors, as milling down an
existing disc wasn’t an option - as nothing came close in size.
Then using CAD BG drew out a bracket for where a caliper could mount onto the disc, which was then CNC machined out of aircraft grade 2014 T6 aluminium and anodised to match the caliper.
In my case BG used an AP Racing caliper usually found on the front of a Caterham – monoblock aluminium with lightweight piston. This was then carefully machined down in places to clear inside the 12-inch Wolfrace Slot Mag wheel.
And then to my
favourite components - the featherlight CNC machined caliper mounts. These took
three CNC operations to complete, each one 6 minutes. Where the bracket bolts
to the caliper is where things are manually machined for clearance and shape.
It’s beautifully detailed, and somewhat upsetting that these bits are hidden
from view when they’re bolted on.
I am proud to report
that all of the brakes were designed and built in Great Britain. Hurrah.
As I was mid-house move during this part of the project Tim Glover at Roadhouseretro (who did the Enfield’s body, paint and reassembly) let me fit the disc conversion at his premises. It was the perfect chance to photograph the little 2.84-metre yellow peril next to Cadillac land yachts.
Against a backdrop of
rockabilly music and Tim’s perverted dogs, I set to work fitting the disc kit
fresh from BG Developments. The side
which I had had to remove the stub axle (to send to BG) needed new bolts, but
these were quickly sourced through local fastener firm Welland Supplies.
I don’t fancy having
worn steering components when racing at 100+mph, so decided whilst the track
rod ends were disconnected I’d investigate a possible upgrade. I’d read on a
few forums that the original spindly Hillman Imp rod ends could be upgraded to
fully adjustable beefier Ford Fiesta items, so ordered a pair from Imp guru Malcom Anderson (who happens to
live 5 miles from where my parents live). You can see the difference in size
Once the stub axle
was back on, the custom machined backing plate could be bolted to the three
existing holes in the stub axle. It looks like an original factory upgrade.
Then the hub could go
back on (with regreased bearings), including the original Enfield speedo drive.
The disc goes over
the wheel studs and locates onto the hub with two countersunk screws.
The caliper simply
connects to the mounting bracket with two allen bolts, with the Ferodo racing
pads located in place with a pair of simple spring slips.
The whole job was
done within an hour, helped by the fact all disc conversion parts bolted up
like they were factory fitment.
BG Developments managed to squeeze the biggest caliper they could inside the 12-inch wheel, and they weren’t lying. I’ve had to remove the stick-on balancing weights from inside the wheel rim as they were fouling the caliper!
Next week I’ll
explain how we had some glassfibre bumpers moulded for the Flux Capacitor, the
sticky front tyres I’m using and the mammoth rewiring job for lightness and LED
Thanks for reading and thanks again to the Flux Capacitor’s sponsors Adrian Flux Insurance, npower and Red Maple IT consultants. Without them I wouldn’t have got this far…
I LOVE EV HISTORY
Half the reason I started this Flux Cap project is because I was fascinated to delve into the history of this quirky pint-sized British EV. The more I read about the development and design of the Enfield, the less I laugh and the more I realise it was a pretty decent attempt at an urban plug-in zero emissions two-seater.
When I wrote a piece in the Sunday Times about my ambitions to turn a flood-damaged old electric ruin into Britain’s fastest street legal EV, the response was huge. People really did come out of the woodwork, not least the guy responsible for project designing the Enfield 8000 when new.
John ‘Ackers’ Ackroyd first sent an email and then we chatted via landline. He is not only one of the jolliest blokes I have ever met, but one with a career so varied you couldn’t make it up. Turns out he’d just finished writing his autobiography, and it really is a fascinating read. More fascinating than Tiff Needell’s.
Born and bred on the Isle of Wight, he is the main reason the Enfield 8000 started production there. He designed the tubular space frame chassis and was there in 1971 to witness MIRA (Motor Industry Research Association, in Nuneaton) testing three of the little EV prototypes on their track, in their wind tunnel and in the crash lab.
Besides taking a genuine interest in the Flux Cap project (I think he was glad someone remembered the car from the paths of time), John casually mentioned that before the Enfield project he’d designed hovercrafts (hence the above photo, John’s on the right).
Post Enfield, he did a few little bits and bobs – like help design the fastest car on earth. Yep, the man that did the chassis of the Enfield was also instrumental in Thrust 2, the jet powered ‘car’ that Richard Noble drove 650mph to victory 30 years ago. He even got a ride in it.
And as if that isn’t a decent enough nugget of trivia for retro EV nerds, here is an awesome photo showing Thrust 2’s ceremonial Lord Mayor’s procession through London in November ’83, a month after clinching the land speed record. My finger is pointing towards the head escort vehicle used through the capital – non other than a humble Enfield 8000.
Apparently it was pure coincidence, but I love the fact that there is a photo in existence showing these two unlikely machines rubbing shoulders. And better still, a distinct link from the jet propelled Thrust 2 to the 48-volt 8hp Enfield EV thanks to John Ackroyd.
History serves to inspire and motivate the next generation, and in my little way I’m hoping the Flux Capacitor will be as fast as we need it to be to pay tribute to the handiwork of ‘Ackers’. He’s already invited me to take it over to the Isle of Wight when it’s done. We’ll see. Let’s finish it first. More on that very soon. I’ve got lots of pics to show you…
John’s book ‘Jet Blast and the hand of fate’ can be bought here: http://www.amazon.co.uk/Blast-Hand-Fate-John-Ackroyd/dp/0954435788
Powered by nPower
2013 has got off to a magnificent start as we welcome npower on board as a co-sponsor of the Flux Capacitor project. Alongside Adrian Flux Insurance and Red Maple IT consultants, the energy supplier will be helping me with a custom charging system (both at home and at the race track. As obvious as it sounds, the way to ‘refuel’ the Enfield will be to plug it into the mains, hence powered by npower!
Flux Cap as of Dec ‘12
Flux Cap as of Feb ‘12
Flux Cap as of 1975 (when new)
It is hard to believe that what was once a river-damaged electric relic is now almost on the home straight of completion. The Flux Capacitor project is nearly a year old, and in this blog I’ve tried to document its transformation into an EV hot rod.
The Enfield, in 2007. Water level had dropped at least a foot when this pic was taken, apparently. Water + electrics = not a happy relationship.
Since December the Flux Capacitor has been up on the ramps at Current Racing HQ in Hungerford, sheltering from snow and Jack Frost, as its wiring duties begin.
Olly Young at Current Racing pulled out the motors in their cradle to start measuring up to have a coupling made. This is basically a short prop shaft that connects the output shafts of one motor with the other (they face one another in the transmission tunnel).
As you read this an engineering company up in Halifax are machining up a coupling to link these babies together.
The Flux Capacitor won’t have a gearbox, so the output from the motors goes straight into that laughably short propeller shaft and into the diff. The loop of black steel around the prop shaft is a feature a lot of drag cars have, which catches the shaft if the universal joint fails. Not sure the Enfield needs one when the prop is 6” long, but still!
The Flux Capacitor’s new Zilla controller unit (like a normal car’s ECU) and main commutator is going to live in a custom built box underneath the passenger seat. It might just look like a green Tupperware tub, but that’s nearly £4000 worth. Zoiks.
This pic shows the Enfield’s dash with the vinyl top removed. The Zilla ‘hairball’ control box will be mounted here alongside the original wiring.
In other news, we’re still deciding which batteries will suit the Flux Cap the best. We are in talks with Yuasa and Chinese company General Electronic Battery Company Ltd. The sooner we know which batts, the sooner we can crack on with final wiring and then getting the BMS (Battery Management System) software on the road to completion. As soon as there's a development I'll update the blog.
SILENT CAR, HOLY CAR, ALL IS QUIET…BLAH BLAH CAROLS BLAH…
Happy December everyone. The blog has seen a quiet spell during most of October and November, but this hasn’t been a reflection on the Flux Cap’s progress. Oh no. On the contrary the little yellow peril has changed a load since arriving back at Tim Glover’s Road House Motor Co. Here’s the update…
The goal was to get the rolling Enfield almost (externally, at least) complete and on display for Adrian Flux insurance at the NEC Classic Car show in November. We did it, but it was down to the (electrical) wire. I pushed it into the display hall at 9.57pm on Thursday night, just as the Tannoy announcement crackled: ‘The display halls are now closing, so could everyone please leave their cars and make their way to the nearest exit’. I had B.O that day.
Three big days and long nighters with Road House’s Tim got the car to that stage. Pizza and beer was instrumental in the process.
Tim finished machine polishing the bodyshell and hung the bonnet/boot on.
He then set to work aligning the doors, which wasn’t as simple as expected, because this was never a precision-built stamped-out bodyshell. It was a completely hand-beaten low-volume bodyshell, which meant panel gaps were rarely as consistent. Nevertheless, Tim is a total perfectionist and won’t let the Enfield leave his workshop until he’s done his absolute best. Cheers Tim, the result looks cracking. And sorry for the late nights.
Whilst Tim assembled the (Hillman exterior, Morris interior) door locks and drenched the inside cavity with waxoyl before fitting the interior trim panels (notice the previous owner(s) had fitted door impact bars! I went off to a place called Woolies. This is an Aladdin’s cave for all the stuff you need when restoring a classic car but don’t know what it’s called or where it can be found. My shopping list at Woolies was for new door rubbers, window seals and felt weather stripping.
BYE GLASS, HI LEXAN
Back at the workshop we unwrapped and fitted up the Lexan sliding driver/passenger windows made by Plastics 4 Performance in Bolton. Less than two weeks ago I’d laid the original glass down onto paper and drawn out templates. These were posted off and then the Plastics 4 Performance guys could set to work digitizing my pencilled templates.
Normally they would 3D digitize curved glass and form them in an oven, but bar the windscreen the Enfield has all flat glass. I’ll be having a Lexan windscreen made sometime next year. More on that in a tick.
Visually they look identical to glass, but the weight difference is remarkable. The fact they are virtually unbreakable is also kinda useful on a race car. I opted for a pre-coated Lexan sheet, which is scratch resistant and anti-fog. Apparently this is the same spec stuff as used on British Touring cars. The new ones arrived swaddled in acres of bubble wrap. That’s my back window that is.
I wanted to use the same window rubbers with a chrome strip as per the original, but these thick extrusions ended up becoming a headache to work with, especially in a cold wintry workshop. Sore finger tips and hours later, we wrestled them into place.
All that was left then was the dreaded task of fitting a 37-year old totally obsolete and ruddy priceless windscreen. It took three hours but Tim got it back in with a ton of profanities, but without any cracky bits. We’ve even retained the original Ozone Friendly sticker.
It will be amazing to have a Lexan duplicate made in 2013, but I’m not sure my heart can cope with the stress of removing the original again. According to the Enfield buffs at the BVS (Battery Vehicle Society) the value of one of these cars hinges on whether the windscreen is intact.
I must give Pete at Black Cat Race Graphics a plug, because he went above and beyond the call of duty to get some sponsor decals sorted for the Flux Cap (npower, Adrian Flux Insurance & Red Maple IT consultants). Not only that but he stayed up half the night helping out with other odd jobs on the car to get her looking finished for the NEC show.
So what’s happening next? Down to www.currentracing.co.uk in Hungerford for the wiring and control unit (EV ECU brain). These guys still hold the record for the world’s fastest full bodied EV, and they’ve been kind enough to let me use their years of r&d within electric drag racing to start the Flux Capacitor’s heart beating. Exciting times, as the finish line of this project seems to be within sight.
Retro to the Future. Well, not far off...
So, the Enfield is beginning its journey of reassembly. The idea was always to keep the body looking stock, but with a Hot Wheels rim choice and suspension stance. Things are taking shape. Personally, I’m chuffed to bits with the little ‘leccy thing thus far.
In the last 10 days the Lambretta Giallo Ossido (Yellow Ochre) painted bodyshell has been machine polished and then taken on its wooden dolly from Roadhouse Retro back to the boys at Webster Race Engineering.
As mentioned in a previous blog, the Enfield very nearly got killed by a fire just hours after it had been painted. But it’s a born survivor, so it still stands. The fire broke out in the neighboring industrial unit, which meant Tim from Roadhouse Retro lost power to his premises for over a week.
Undeterred, he found a very very long extension lead and worked tirelessly with the polisher by floodlight. The proof of his panel-working efforts are in the pics.
At Webster’s race HQ the Flux Cap has had the adjustable four-link rear suspension, Ford 9-inch axle and twin motors (bolted inside a cradle) refitted. Oh, and then there’s the propshaft. I say ‘propshaft’ because it’s the shortest one Webster Race Engineering has ever ordered. Or seen.
You can see from these images that it’s about the same length as a bottle of tooth rotting Cola. It is definitely longer than a mug of tea, though. So the tube of metal that carries the power straight from the motor to the back axle is just six inches long. Less, if you take into account the universal joints.
What else? Well the handbrake now works, as the rear drum brakes are hooked up. In fact the only thing I’ve got left to sort in the braking department are some decent front discs and calipers. Easier said than done, as the car is such a bastard child of British car parts bins.
The tinware over the back end is all painted satin black to match the roll cage, and riveted in place. In terms of its shape, it’s hardly any different to the original vinyl-covered panels of the factory original Enfield.
BACK ON ALL FOUR SLOT MAGS
As of now (4/10/12) the Enfield is back rolling on all of its wheels. I hauled it back onto a trailer and tugged it in the Evoque from Webster Race Engineering back Roadhouse Retro. Now they’re fitted up, don’t the rear wheels look massive? You’d never guess they were 14s. The front suspension looks high in the pics, but that’s because there are not yet any batteries fitted. All in good time!
It’s looking pretty hot rod now, right? That’s my hope.
Over the next few days Tim will finish spray fillering and painting the doors, bonnet and bootlid to then refit them.
Then I’ll collect the glassfibre replica bumpers to fit (I borrowed a pair of original steel bumpers from a chap with this totally stock Enfield he uses weekly – more on this soon) and bolt up the lights.
In other exciting news we’ve just received a parcel with the Enfield’s replacement glass in. Only it’s not glass. Thanks to motorsport glazing gurus Plastics 4 Performance, each original pane of glass on the car has been replicated in high quality scratch-resistant Lexan. This is not only lighter than glass, but safer if something very bad and accident-like were to occur.
So yeah, it’s coming together now. It’s starting to look like a midget weapon. Once again, I wouldn’t be able to get this far without the support of Adrian Flux Insurance and Red Maple IT Consultants. Cheers guys for being as smiley and optimistic as me...
Congrats to Dale Vince and the chaps behind the Nemesis EV. An average speed of 148mph is nothing but impressive for a leccy chariot, and apparently the needle will hit 100mph in 8.5 seconds. Gulp. Let's get it on the quarter mile drag strip and see what it will do, then I've got a bench mark with which the Flux Capacitor needs to try and beat. I think I'll have my work cut out.
The Nemesis looks to be road legal and based upon a Lotus Exige. It recharges via Ecotricity's wind turbines in Gloucestershire. It uses twin 125kW motors and is powered by 96 x 100 A/h 4.2 V pouch lithium polymer cobalt cells. The cost? Under a million pounds. Crikey. My budget is quite a bit smaller.
For more info on the intriguing Nemesis project click: http://www.ecotricity.co.uk/about-ecotricity/eco-labs/nemesis
Now in TechniColo(u)rBye bye crap home-brewed blue paintwork, hello yellow. Actually, the Flux Cap has not been gunned over in a straight-forward yellow. It’s an orangey yellow. Officially speaking Lambretta scooter Yellow Ochre (Giallo Ossido) – a colour used predominantly on GP models throughout the 1970s.
So it’s a period hue, and it’s actually not dissimilar to one of the original colours offered on Enfield 8000s when new…. as this arty promo photo shows.
Working tirelessly on prepping, spray filling and priming the ‘shell, Tim at Roadhouse Retro (www.roadhouseretro.com) has really gone above and beyond his call of duty to ensure the bodywork is arrow straight and ready to stand the test of time. The worst bit was that less than 12 hours after he'd painted the car, a fire broke out in the industrial estate unit next to Tim's.
I got the call the morning after a particularly heavy stag night. 'You heard about the fire at the units?' I thought he was joking. By sheer miracle the fire was controlled before it hit Roadhouse Retro. The Enfield was literally feet away from getting fried - fresh paint and all. Phew. Massive relief.
Before the exterior could get sprayed, Tim fired some satin black 2-pack around the re-engineered back axle area and rear wheel tubs. Then the headlining was carefully masked up (I didn’t want to remove it and risk it getting damaged) so Tim could paint the roll cage in black. Detailing takes time, but it’s always worth it.
Ultimately, the project has got behind because of several factors, but I couldn’t bear to cut corners and rush it. I’d rather not do it at all. The Enfield has to raise a smile, but also show people that every area has received attention. Equally, it’s important to me that people see that almost all of the body (and much of the chassis) is still as the factory intended.
It’s not been butchered into a pure race car, but rather sympathetically altered. It’s a EV hot rod, and as British as I can get it. Talking of which, the (British) Wolfrace slot mag wheels were sent off to be refurbished by Wicked Wheels (www.wickedwheels.co.uk). They collected them from my front door and turned the whole set around within a week, with results that blew me away.
The CNC-machined finish has made me think twice about ever risking putting them on the car – I want to lick them and mount them over my fireplace. Much better than bloody horse brasses and worthless porcelain ducks.
From here the Enfield will soon go back to Webster Race Engineering to have the (powdercoated) Ford 9-inch back axle fitted, and the twin motors. I’ll then take it straight down to Olly Young at Current Racing (he’s the bloke who built/owns the world’s fastest full bodied EV) to start the battery build.
It’s going to be down to the wire to get a proper shakedown run in the Flux Cap before winter, but I’m going to do all I can to achieve it. Just got to sort the problematic front brake caliper/disc situation and choose the right batteries.
A owe a lot of people big thanks for their interest and enthusiasm with project Flux Capacitor. It seems to be striking a chord across a cross-section of people, car nuts and otherwise. Me? I'm enjoying every single minute.
That Bloody Grille
When I bought the Enfield some bright spark (the previous owner) thought it wise to bolt the rad grille of some ‘90s Rover to its nose.
Understandably horrified, when I dropped it off at Webster Race Engineering me and Jon Webster took the responsible role of taking the orrible thing off and showing it the pedal bin. We did this back in March but I lost the pictures.
I Hate That Blue Paint
It was time to collect the Enfield from Webster Race Engineering and begin stripping the bodyshell of 30-odd years of paint, filler and primer. Webster had finished everything bar the front brakes.
They’d fitted new hard brake lines, fabricated a new master cylinder reservoir and plumbed in a Moroso line-lock. The latter is for gripping the front wheels when you want to warm the rear rubber. A big naughty smoky poetic burnout.
The paint and bodywork was going to be taken care of Tim at Roadhouse Retro (www.roadhouseretro.com) in Stamford. He’s a good mate and is not only immensely talented, but also has such an infectious passion for the history behind each old car that passes through his workshop. The craftsmanship he did on my ’73 Ford Taunus coupe and ’68 Charger were second to none.
The Flux Cap was put on a dolly, as the back axle still hadn’t returned from the powdercoaters. This was a blessing, as it’ll be easier to paint the newly fabricated rear suspension and chassis mods.
With the weather baking hot, we decided to crack on with paint removal. As opposed to using solvent based chemicals, I decided to try stripping using a soda blaster. Borrowed from FROST (www.frost.co.uk) the blaster connects to a compressor and basically fires out bicarbonate of soda powder from a nozzle.
It’s no harm to lungs or the environment, which is why I was happy to blast away outdoors. Although breathing apparatus and a cap for your head is recommended. Once I got in the zone, the soda blaster seemed perfect at bringing back the bodyshell to its pure bare aluminium skin, especially in the creases where a conventional sander couldn’t reach.
You can see from the pics that I’m doing the gutters and panel creases first. Because the whole bodyshell was hand made from aluminium we’re finding where all the joins and rivets are. There’s a fair wad of filler in places, and I’ve unearthed some holes in the sill but we’re hoping that the big strip goes smoothly. The sooner that NHS blue paint disappears the better!
Hell, even that (totally obsolete and totally priceless. Probably) windscreen came out without drama.
The humble little Enfield EV has been down the gym and it ain't so humble anymore. Yes, it's still short, but now you're looking at an electric muscle car in the making. Well, hopefully.
There's a saying 'Short man syndrome' which, perhaps rudely, suggests some height challenged blokes make up for their stature with a bag of steroids. Or just the 'I'll take you all on' attitude of a Jack Russell.
Whilst it might still have standard bodywork, this 'lil Enfield could hopefully become a force to be reckoned with when we hit the drag strip. We shall see.
Last week I paid a visit to Webster Race Engineering to see how she was progressing, but more specifically to get measured up for a race harness. As I'm trying my damn best to keep the main car as original as possible, we're intending to keep the original black vinyl low-back bucket seats.
The trouble is they are mounted quite high in the cabin, because originally there was space beneath both seats for some of the electric control units. As the controller I'll be using is more modern, it is smaller, and so I'll probably be mounting it under the bonnet or dash area.
The latter has a huge slab of space under it doing largely nothing! I'll talk more about the seats in a future blog, as my brother Greg at is currently trying to half the thickness of padding in them, to make them more suitable. They should look original, but will mean you don't hit your head on the roof with a helmet on.
As mentioned in a previous blog, the Flux Cap is running a twin motor set-up, where one motor runs into the other, with a direct drive propshaft out the most rearward one.
With the original chassis carefully modified to accept the bigger motors, it was time for Webster Race Engineering to fabricate a framework to carry the motors and be mounted/removed from the car as one.
The motors weigh 60kg each, so the twin set-up tips the scales at 120kg (excluding the metal cradle). Who said electric muscle was light? That's still light compared to a combustion engine though.
You can see from the pics what the motor rack looks like on and off the Enfield. There has been a subtle extension of the trans tunnel too, but with carpet over it you'll never know.
You can see from the pics that the rear axle and four-link suspension is all mounted but still bare steel. This is called a dummy build, as it will shortly come off to be powdercoated.
Because of the tiny space under there, the (Avo) shocks are mounted in front rather than behind the axle. The wheelie bars connect from underneath the axle tubes and can be unbolted for trips to Waitrose.
The 14x7J Wolfrace slot mags are now well tucked under the standard back arches. They are wearing the best 14-inch tyre we could source for the purpose: Nitto Extreme NT555R drag radials in 205/55/14s. These are street legal treads for weekend drag racing guys, basically. I've heard good reports. We shall see.
The front tyres I've yet to source, so if anyone has any performance orientated 12-inchers to recommend I'm all ears.
The Ford 9-inch rear axle has got matching drum brakes fitted, which only just clear the slot mag 14s! As for the front end, I've binned the original Mini drums and have some tasty Tarox calipers/discs on order from Italy.
There's not really any option to put a servo on the master cylinder, because there's no engine to produce vacuum assistance.
Next up? Finishing the brakes. Need to fit line-lock on the front anchors for burnouts. Very important indeed.
Wheels make or break a car. My zero emission hero needed appropriate rims, but it was easier said than done due to the sizes required not being in huge demand these days.
The trouble is, we needed to bin the 10-inch originals for 12-inch front and 14-inch rear wheels. That meant most styles were either for old Minis (going up to 13-inch) or most other styles didn't stoop as small as 12-inch. Bummer.
A big thanks to Bling Rims and R Tec for their efforts, but ultimately barely any brand new wheels could fit the bill. I decided to go old school and secondhand.
Delving into British alloy wheel history was the solution. The classic 41-year old Wolfrace slot mag design was not only era perfect for the Flux Capacitor, but lightweight. Oh, and I managed to easily find a pair of 12x5s (in Bristol, for £50) and a pair of deepish dish 14x7s (in Coventry, off the front of a Trans-Am, £100). So seventies, but so yum.
These immediately went to the workshop to be measured and fitted up. Webster Race Engineering needed them to set the suspension level and rear axle width. This side shot shows the final stance, with a pleasing amount of rear arch tuck.
When the body's in paint I will have them refurbished by Wicked Wheels (www.wickedwheels.co.uk) because the job they did on my Lotus Eclat rims was absolutely mint.
It's a bit odd trying to constantly remind myself that we're putting together this hot street/race car, with tasty hot rod stuff like a custom narrowed back axle, roll cage and dropped stance. And yet...
...it will never have pistons. Or exhausts. Or valves. Or a distributor. Or a carb/injection. Or radiator. In fact, the core components of electric cars amount to very little.
The way you have to train your brain is to imagine that the motor is the engine, while the batteries are the fuel. So here, then, is the Flux Capacitor's new 'engine'.
Fresh off the pallet from Olly Young at Current Racing (www.currentracing.co.uk), this is known as a twin 9-inch set-up. A pair of 9-inch diameter motors, with one connecting the other via an input shaft. The motor mounted closest to the back of the car will then have a small universal joint bolted to it, which connects to an even tinier prop shaft.
Total cost of these two 9-inch race prepped leccy motors, together with their Helwig carbon split brushes and silicone insulation? £4440. They are DC series motors, modified to cope with 2000 amps at 170v with a maximum revvage of 5500rpm.
The decision for this motor came about through a combination of tried/tested knowledge and cost - the latter getting quite horrific when you realise that I could have easily spent £24,000 on the very latest liquid cooled motor.
As you know the Enfield isn't long, and because the chassis has been adapted to carry this twin motor set-up, the prop will be positively minute. As per the original, the Enfield will be direct drive, so no gearbox to faff about with. When the throttle is pressed, the motors will shove torque straight into the axle, hence why said axle has been built to cope with 1000lbft of twist.
Granted, they might not look as sexy as a supercharged V8, but they should be as quick. A part of me hopes that in a few years EV motorsport will be well respected enough for blokes to point at leccy bits like this and grunt with appreciation. If you squint, you might see the AA battery we've put in the photos to show a sense of scale...
We're getting closer. The Enfield is starting to look more Hot Wheels than cold custard.
It's hard to believe looking at these pics, but we've tried to keep the Enfield as close to its original design as possible. Take the rear suspension for example - it started off as a solid axle with a four-link system.
Now? It's still a solid axle with a four link set-up, albeit much more heavy duty. The rear axle is now housed by a tubular steel frame that's tied into both original chassis and roll cage.
Equally, the twin motors will be living in the same space occupied by the original motor - inside the transmission tunnel. This has been widened to accept the fatter motor casings, and more serious mountings were advised. And let's forget the motors are still direct current (DC), just like the original was.
I showered my keyboard with coffee the first time Webster Race Engineering emailed me the wheelie bar photo. It really made me grin. Whilst cool, they are removable because they won't be relevant in short road commutes (might take out a cyclist or two - not on my agenda).
The wheelie bars mount underneath the axle and can be adjusted to control how much the front lifts under full acceleration.
The gap behind the front seats is ultimately the same shape as it was in factory spec, but now Webster's have fabricated metal panels over the axle, as opposed to wood and black vinyl. I have to take my digital hat off to Jon and the team - they don't just talk the talk.
I am doing all I can to keep the interior rock stock, so the low-backed vinyl seats (immaculate headlining and steering wheel) are staying. You can see where the roll cage crossbar tucks tightly behind the seat backrests, whilst race harnesses will be mounted to the vertical cage bars that run down to the back axle.
This old black and white photo shows what a bare Enfield chassis looked like before the aluminium body was dropped on. The area under that rear kick-up is the only part to get surgery. Everything else on the Flux Cap is structurally sound and deemed ok to remain. As I probably said before, it's a surprisingly well-built little thing.
The Enfield started surgery at Webster Race Engineering back in April.
By this point Jon Webster and I had discussed at length how I wanted the Flux Cap to sit, look and what would be required in order to make it as stable and strong as possible on the quarter mile.
I didn't want people to think I had simply lifted the body off and plonked it onto a custom race chassis.
This was more about sympathetically modifying the original car and butchering as little as possible.
Before they could start carefully cutting up the ECC 8000, it had to be stripped naked. Well, partially naked. Luckily there's not a lot to it and all of the mods would be taking place at the back end (behind the seats).
Out came the original eleccy 8hp motor, drive coupling and spindly Reliant back axle. The original wiring for the lead acid batteries was never going to be re-used so that got introduced to the bin.
Once on the axle stands you can clearly see the square-section tubular chassis through the rear arches.
The first task was to start cutting away the chassis structure to allow space for the custom Ford 9-inch race axle and its respective mounting.
The existing box chassis could then be married with the axle housing and the all-important roll cage.
Bar looking at the work of the Black Current EV Beetle and White Zombie EV Datsun, I wasn't really sure what motor(s) or batteries would work best. The main issue here is cost, because there are some outstanding electric motors out there, but you can easily spend £25,000. I didn't have that.
Several dozen emails ping-ponged to and fro with Olly Young - the guy who owns, designed and built the Black Current EV Beetle. He soon realised that I was serious about attempting to make the Enfield properly quick.
It was important to have the support of Current Racing, because Olly and his brother have the world's fastest EV. They have done over six years of R&D with trying to make a 'leccy chariot run hard up the ‘strip’, which would kickstart my project.
Olly agreed to help and it was decided that Current Racing would be the best guys to assemble my motor. Or should I say motors. More on the motor spec very soon, but, as we speak, the motors have been modified and sent off to Webster Race Engineering...
I collected the Enfield from its shed in Bristol.
It had at least two flat tyres and, despite having no batteries, was still ruddy heavy.
Big shout of gratitude to Top Gear magazine's Tom Wookie Ford for lending me his big red Hilux. I don't think it noticed the extra load.
I drove straight from Brizzzzzol to see Jon Webster at Webster Race Engineering in Rushden, Northants. W.R.E are about the best drag race car builders in Europe, and I just wanted to let Jon see it and gauge whether he thought I was mentally ill.
He's a quiet bloke anyway, but after walking around it with a tape measure for 10 minutes, he looked up and said ‘Yeah, it should work.’
- Rear wheel drive?
- Four-link rear suspension?
- Fairly strong chassis?
- Ability to locate motor/batts low down?
Having seen the automotive weaponry he turns out, Jon will be entrusted to perform the main chassis, steering and suspension part of the car. Oh, and the roll cage. I don't fancy going for a tumble in the Enfield at 100mph. It was only designed for 40mph.
People have long lavished time, cash and polish on classic petrol powered cars, so I think it's time retro EVs deserve the same pampering.
Electric car ownership is totally new to me. I nearly bought a mk1 Honda Insight hybrid recently, and used to daily drive a chip fat-powered Mercedes diesel, but that's as close to alternative fuel as things have got.
The essence of this project is about resurrecting a forgotten EV underdog and giving it some 21st century hot rod inspired treatment, but with tongues in cheeks. It's all about taking an unlikely contender - an automotive Rocky Balboa - and turning it into a pint-sized zero emission hero.
I fancied building a hot rod electric car a while back, but rather than convert a piston-propelled relic, why not remind the world that EVs aren't a new invention?
Sure, they've got prettier, more efficient and less laughable, so I figured now was a good time to sprinkle some hot rod dust upon an unloved EV. Some cars were born for no other reason than to make people laugh.
The Flux Capacitor is as much about celebrating Great British eccentricity as it is pushing zero emission boundaries. In effect, it is taking retro to the future.