Quote:
Originally Posted by 76z28
my friends is set at 16 think that would help bring it to the 12s?
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Depends, the stock 9b turbos are tiny and don't hold 16psi to redline. If the rest of the car is stock ie: fuel injectors/no ECU tune he'll be maxing out the stock fuel system and doing two things, overboosting the stock turbos shortening their life and 2) detonation will occur which as everyone knows spells disaster for a FI car. The stock fuel pump is also "maxed out" with the factory boost setting and would need an upgrade to run reliably at higher then stock boost settings.
I limited my VR4 to 14.5 till I upgraded the fuel system.....that led to bigger turbos, downpipe, etc etc etc..!!
Back when I had a VR4 ALOT of people were testing the limits and that led to learning what not to do. I played it safe. IMO he can hit 12's with a great launch, but 16psi will only be seen for a second and drop off quickly.