bump for a good thread. im going to add this small piece of info. after going faster and faster and about to hit the 10's mark i think for me its coming down to the the intake design and the turbo outlet temps even on alky. with our intakes the alky just doesnt have enough distance to fully cool the charge. also with the way its designed compared to the intercooled intake we suffer from heat soak badly as far as the oil and heat coming up through the intake. thats just my .02 worth at 1:02am