question about upgrade
05-21-06, 11:32 PM
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question about upgrade
still noob with rotary, just got a question, what else do I need to upgrade when I am getting a bigger turbo and more boost??? apex seal? gasket?
05-22-06, 06:40 AM
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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; 05-22-06 at 07:10 AM.
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