Quote:
Originally Posted by Croustibat
On a well tuned ca18det w/e85 i know, at 24psi, it makes around 430HP (not WHP). The boost starts to go down at 8000rpm (he is running 260/ 10.25mm cams and solid lifters, ported head and so on). I dont think it can make 70HP more.
That is the reason he is going for a big twinscroll turbo 
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That's good power for the CA, but I wouldn't say the turbo is maxed out.
An sr engine has more displacement. I could use 12.5mm cams and I feel like I could push more than 24psi out of the gtx, but I could be wrong. Surely the thing is good for 450whp at least. If Codyace made 400whp with a 2871 and pump gas then I should be able to see close to 475whp with e85, 5 more psi, and the advanced timing that ethanol allows. No proof without puddin though.
I may just keep my big top mount setup and make 500whp with ease.
