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Discussion Starter #1
I am looking for back to back tests:

If I raise compression ratio from 9,0 to 10,0

how will be the turbo spool?

Fuel is E85
twin 68s on 5.0L V8
 

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Compression ratio will always help with spool, but timing controll is better.
 

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See I tend to think spool will not be effected a whole heck of a lot. But, E85 likes higher compression and your off boost will be better. Power will also be better. But I really don't think spool will be a lot different.
 

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U have a better transient response with higher commoression. Normally with higher compression Turbo car will make more power per psi but the tune has to be spot on. Also the huger compression u go the more your limited on pump gas.
 
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