i have had 145 in most of my et powered s12s running approx 225bhp or more.(this is with 17" wheels so bear in mind with the speed reading)
I blew a hole in a piston of my t3 blowered s12 when i took it to 140 then started slowing down. I believe the std Fuel pump could not supply enough fuel.
My det is going well. i get around 75mph in second gear as the rpm limiter is at 7k .once the limiter is increased i should see 80-85.This should be a more accurate reading as i have 15" wheels now
When i spoke to Den at trax last year (det s12) he said he had gone into the 170mph+ area that day (private road obviously
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