Supercharged 21 Turbo (J7R) Powered Mid Engine Kit Car

This is the blog for my J7R mid engined kit car project.

The car is built from a tubular steel chassis with aluminium panelling and a fibreglass body. The engine is Mid Mounted and utilises the renault transaxle.

When i purchased the car it was originally fitted with a 2.2 J7T engine which i have removed and am fitting a J7R.

When registered, the car weighed in at 950Kg though i have removed a lot of weight by taking out unnecessary equipment and functionality. The planned completion weight is beween 850Kg and 900Kg, and a power figure over 200hp at the wheels.

Currently, the enigne is destined to be supercharged with a megasquirt controller. A turbo may be re-fitted at a later date if the desired power and torque is not achieved with the supercharger.

BIG Thanks to AndyQuadra who is advising with the technical aspects of the engine., and to "Barry" for the laser cutting.

  1. 21 Turbo Kit Car

    by on 01-09-2010 at 07:45 PM (Supercharged 21 Turbo (J7R) Powered Mid Engine Kit Car)
    Thanks to Andy (again!) oh, and Dave for helping me identify the wrong timing belt that i was sold!!

    More progress tonight; The trigger wheel.......







    Sorry Andy! I was listening, but at least now i dont have to;

    A) Get it machined ...
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  2. 21 Turbo Kit Car

    by on 01-09-2010 at 12:04 PM (Supercharged 21 Turbo (J7R) Powered Mid Engine Kit Car)
    Had a good start to the day. Managed to get the oil filter remote takeoff drilled and tapped to 20mm (19mm drill bit came today), and fitted to the car.



    With barely enough room, even after grinding off the wrench stud.



    This should be ok, as it i can use a strap wrench to remove it if i need to later on. Not sure if it ...

    Updated 01-09-2010 at 03:05 PM by MakeEverything

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  3. Brief Update & Plan

    by on 30-08-2010 at 03:09 PM (Supercharged 21 Turbo (J7R) Powered Mid Engine Kit Car)
    Had a week off (Malta) last week, so ive had withdrawal symptoms from the project.

    Made some progress today in that i have now permanently fixed the supercharger, and found a belt to fit it though it is a little slack and may need to be shorter.



    Plan for next week is to get the engine trial fitted to the car and the mounts sorted out. Then start to make up the inlet hoses and exhaust, ready ...
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  4. Unexpected progress - an hour of fiddling....

    by on 18-08-2010 at 10:45 PM (Supercharged 21 Turbo (J7R) Powered Mid Engine Kit Car)
    Some unexpected progress this evening following a thread earlier discussing the objective 1/4 mile time of sub-10.
    I think my objectives may be a bit ambitious, but then that should bring the performance up as high as possible within the safe limits of the engine and equipment that i have.

    Anyway, i think i may need to review the objectives once the car is running and all set up.

    For now, here are the pictures of this evenings progress;

    Foggers ...
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  5. Goodies.....

    by on 16-08-2010 at 09:20 PM (Supercharged 21 Turbo (J7R) Powered Mid Engine Kit Car)
    The new (first one was ordered the wrong size!) inlet rubber came today from my friendly ebay Koi centre supplier!!

    All fitted using the longer band from the incorrect order, so not completely wasted.



    Also, on the way back from Birmingham, i "Popped" into peterborough to pick up another gadget......


    ...
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