Hey, are your strut tower supports tied into a roll cage?

Yes the strut towers are welded to the front bars of the cage. All is seam welded for strength and rigidity.

Strut tops are high rise tophats because it allows the use of larger front strut inserts. Car currently runs 40mm Bilstein inserts with long travel.

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Is that a stock manifold? If so, know where to get any more?

My manifold is based on the stock H92 unit but has been cut, reflanged then TIG welded and machined for flow purposes.
They are hard to find and sorry I dont know where to get one from. ebay sometimes, then some of the lesser Datto sites are worth keeping an eye on.

hey ive got one of these manifolds and would love to hear about the improvements youve made

mine is gonna be used on my turbo a-15 setup first and once i can affor a CA18 for that car i will put it on my rallycar too

but yeah at the moment its sitting around waitin

1200rallycar, My manifold is cut and modified to suit, wait for it, a commodore 65mm throttle body. There are two types available, one with a butterfly shaft diameter of 7.2mm and one with a shaft dia of 9.2.
I have had trouble in the past with the throttle body shaft breaking in the forest because you tend to smack the throttle open and closed constantly, the smaller shaft throttle bodies just cant take the workload and break. The problem with this is you can suck the little floaty broken bits into your engine, not a good thing.
I suggest if you are going to do something similar that you try and find a throttle body with the larger shaft. VL commodore I think is the one to use but check the shaft dia first. The best part of this build is that the throttle bodies are easily available from the wreckers and they are cheap.
If you look very carefully(sorry for the poor quality photo) you will see that the throttle body shaft has a bearing plate mounted on top so the throttle body shaft in in full sheer and can not break ever again. I will post detailed photo's when I have the time.
You will also notice that the cold air box has two angular vents mounted in the back plate and directed at the manifold plenium, this does two things. Firstly it vents the air box so it cant choke, and secondly it allows any cold air flowing through the box to be directed at the plenium chamber so it cools the plenium. I have recorded plenium temps around 5 degrees lower with this set up. When designing this you want the area of the vents to be a little smaller than the inlet area that feeds the cold air box. This means that the box is always pressurised and can never choke the air flow. It also means that the cold air sensor can not suffer from heat soat from the engine bay because it too is mounted inside the cold air box. I had some trouble with the engine not running smoothly once I finished a stage and was stopped, the heat soak from the engine bay would effect the cold air sensor and it wasnt until I was back moving that it would settle down. The current set up solves this problem and I havent had any issues since even when in the forest with the ambient temps around 30 degrees C.

There has been much debate about the recommended throttle body size and some people have said that this throttle body is too large, all I can say is that it seems to work very well with the current set up and not only do I have good power at high revs (hard cut rev limit of 8500) but its a pleasure to drive on light throttle loads.

Hope this helps.

Paul.

How does smacking the throttle open break a shaft???????????

Have you ever made adjustments to your pedal lever stop bolt???????? It may help.

Must say...looks pretty sweet!!!!