2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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What If??

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Old 06-05-09, 07:19 PM
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lite rotary = easy push

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What If??

what would happen if i replaced the turbo on a stock s4 turbo with a larger one and fabricated a manifold for it and did not change anything else??
Old 06-05-09, 07:30 PM
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Listen to King Diamond.

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Probably lean out and blow up when you hit boost.
Old 06-05-09, 07:40 PM
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why would you bother?
Old 06-06-09, 10:47 AM
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Engine, Not Motor

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The engine would blow.
Old 06-06-09, 02:06 PM
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version 2.0

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More Air + More Fuel + Timing = More HP

That is the equation your are aiming at yes? But you are missing two VERY important variables: FUEL AND TIMING!

You can't just crank up the boost and expect everything to be ok. Modifying a car safely and correctly is expensive and takes time. You need bigger injectors to keep the air/fuel ratio within safe limits to prevent knocking. You need a computer that can deal with the extra fuel correctly and properly advance the timing beyond 8psi. You need to do more research.
Old 06-06-09, 02:30 PM
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The waiting game......

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^^ This is true. OR you can retard the ignition all the way back 3 degrees manually, and 1 degree for every 2 psi. (After 8 psi, that is) If you don't have the money to spend on a ems. Also you do need injectors regardless.

But in short, boom boom.




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