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Using the stock micra front suspension struts would mean the ride would be very hard (Micra 820kg midget car 340ish kg) and sitting at the top of the struts travel range with no drop available. I die grinded away the weld of the lower spring seat to allow it to drop down the strut completely...

Rear suspension. The box section lower part of the rollbar has a tube welded in place. This has a push fit polyacetal bush inserted and the front round part of the lower control arm fits in to it. This is the RHS, note the sump alterations (hammered in) to make room for the lower control arm.

The engine has to be naturally aspirated with a max choke size of 1 & 1/4". I sourced an SU carburetor from a1970's mini 850cc and made an adaptor made from a 32mm but weld 90° bend and 6mm flat plate connected to the inlet manifold where the throttle body was, the bend is cut to the angle so...

The regulations say you can alter the exhaust back as far as the first bolt on item to the exhaust manifold, so I cut the top section of the catalytic convertor and welded (with cast rods I got on ebay) a plate that the first section of a new 2" exhaust is welded to. I used 2 30° and 2 60°...

The distributer had to be altered to be mechanical electronic ignition with a coil which means I wont need to use the ECU, have any issues with the immobilizer and a lot less wiring. I sent it to H&H Ignition Solutions in the UK who sent back this with fitting instructions and a new coil...

Next up, final assembly, engine cooling, carburetor fitting, suspension, flooring, pedals, steering........ The Micra thermostat housing was pointing forward to where the rad used to be but also into the seat location so I replaced it with an adaptor I had turned to connect the pipe going to...

Hi Cat, Just letting you know to be cautious of MachineAddict I think he is a scammer and I see he has responded to your oil pump search, last week NitroWade coned me by selling me camshafts he didn't have, he just gets pictures and info from other ads online and once the money is sent it all...

Welding. My brother in-law is a fitter with the power company and a very good tig welder, he acquired some high quality rods and he got the whole thing done in one long day, thanks Jim. Then it was, grinding, sanding degreasing and washing with acetone to get it ready for heat treatment and...

Body work. The plan is to infill the frame with panels of aluminum so most of the frame is visible, I got a local engineering co. to laser cut 126 tabs from 2mm sheet and I made a simple jig to position them so that the outside face of the aluminum will be on line with the center of the frame...

With the frame almost complete but still only tack welded it was time to strip it down for tig welding, cleaning, heat treatment and painting. I'll just sit in it for another size check (cue inner child complete with engine noises) To make welding a little easier I made a simple rotisserie from...

Yes, the pump and controller are variable speed and it controls the fan also so it should be good. The midget race car regulations are all about keeping costs down and competition tight, the engine has to be from a 1L or less road car and has to be naturally aspirated with a max venturi or choke...

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Hi FHM, thanks for the info, great to know others have used the mini cooper rad (and that there's more than 1275 looking at this😃). I've removed the water pump (for a variety of reasons) and I'm planing on using an electric Davies Craig EWP80 Alloy Electric Water Pump & Digital Controller Combo...

The gearbox gear linkage is welded to a box section welded to a universal joint welded to tube welded to another UJ connected to a piece of solid 10mm going through a 10mm tube welded through the bottom rail of the roll hoop connected to a 3rd UJ welded to the tube connected to the Micra gear...

The seat rails are 80 x 40 box section cut to make 2 angles, these along with brackets on the lower frame rails are 2 more harness anchor points. I got my machine shop up the road to make 2 bespoke washers to fit the holes in the Kirkey seat. A countersunk cap head bolt spot welded into the...

The top of the rear suspension struts are fitted to a big ugly bit of angle iron, I think they started off as 150 x 150 x 10. The center lines of the tubes intersect at the top of the strut, hopefully this will be strong enough. With a lot of cutting and grinding they started to look a little...

Rear subframe joins the top of the suspension struts to each other and to the bolt on bracket that holds on the lower control arms, this has to be removed to take in/out the engine and gearbox. It's also the anchor for 2 of the seat belts so I used 3mm tube. The radiator is connected to this...

Adjustable GAZ shocks are fitted beside the top front wishbone connection, I won't buy the springs until the car is finished and I know the weight. The steering rack is clamped on to 30 x 30 angles welded to the front X brace along with the brake master cylinder (MX5) mounting plate. The...

While building the frame I leveled and bolted the rear frame to the floor and kept everything straight and square to the roll hoop. Once it was done, I set it up level at ride height and bolted it to the floor. I put back in the engine, control arms, rear suspension and wheels, adjusted the...

Hi SuperUno, this is a long shot I know but by any chance do you still have the 1.4 cams, I'd buy them off you and pay you more?