Since I have a Supra with comparable mods and raced an SRT4 with similar mods with a video I will chime in here. We just started an ok channel here in STL
http://www.youtube.com/watch?v=fb-jpLVCnqY
Cars had following mods (as listed in video):
Supra: 87 Targa Stock turbo 7M-GTE @11.5psi, 3" turboback, intake, short-shifter, 996 Turbo BOV, slightly blown headgasket mod (cylinder 5 is dead too)
SRT-4: Stock turbo @ 15psi (possibly more but that's what I was told), AGP wastegate, intake, cat-back
My car's PO dynoed 269rwhp on a 110degree day before the head gasket went. I raced him on .82 bar so roughly 11psi? In my opinion, that SRT4 should have beat you. Just my 2cents
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