Fitting blower - does compression need to be lowered? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
 
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post #1 of 2 (permalink) Old 01-16-04, 11:10 PM Thread Starter
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Fitting blower - does compression need to be lowered?

Hi, i'm currently looking at buying an AU (4.0) with a supercharger. When the blower was fitted the compression wasn't lowered - is this likely to cause any problems? Is it always necessary to lower the compression when putting a blower on?

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post #2 of 2 (permalink) Old 01-17-04, 12:39 AM
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Re: Fitting blower - does compression need to be lowered?

No not nesssessary so long as fuel and advance curve is correct.Usually over 10 Lp boost the compression needs to be lowered.Generally..
Capa s/c the Gen lll and its compression is 10 to 1....

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