question about upgrade
Seduced by the DARK SIDE
Joined: Apr 2001
Posts: 7,323
Likes: 2
From: Orange Park FL (near Jax)
The stock fuel system has at most maybe 10% headroom.
The stock turbo and intercooler have about 25% headroom.
The stock AFM & ECU have about 25% headroom.
Two piece apex seals have 50-100% headroom, but they are exposed more the piston rings and will not tolerate detonation.
So - fuel & spark timing are the most critical when pushing up boost more than 10%.
Then turbo & IC to get above 30%.
Also, to go above 30% (10-11PSI) you are going to need a stand alone computer.
The stock turbo and intercooler have about 25% headroom.
The stock AFM & ECU have about 25% headroom.
Two piece apex seals have 50-100% headroom, but they are exposed more the piston rings and will not tolerate detonation.
So - fuel & spark timing are the most critical when pushing up boost more than 10%.
Then turbo & IC to get above 30%.
Also, to go above 30% (10-11PSI) you are going to need a stand alone computer.
Last edited by SureShot; May 22, 2006 at 07:10 AM.
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