I agree with Dave, people that want if for a performance gain (like myself)I would like it, if I was building something. However I have already spent a metric crap ton on 14x6 and 15x6 wheels to supply the car with a qualifying set, racing set, spare set, and rain set. Going to a 7" wheel when the current rule currently satisfyies everything.. just would put a thorn in my side. What it would do is create a bigger gap between top level teams and the mid pack.
Most of ITB/ITC runs on a 205 wheel anyways. This fits (both R comp and street tire) just nicely. There are a few of us (myself included) that run 225 R comps on 6" wheels.. not sure if a 225 street tire will fit on a 6" wheel. somebody would have to try it out.
I am in the boat of having to source a new block as of yesterday.. built it to the tilt the first time around.. lasted a few years. Unitl something changes the new motor will be built in a similiar fashion.. but not as extreme or as $$$. Cubic dollars for tenths of hp.. pointless.
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