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ok, I know that the DETs are pushin an 8.5:1 ratio and the USDM DE's are squishin a 9:1. Seeing as the JDM DE's are higher at 10:1, is that still low enough for boost?
I'm only talking low pressure here, like 7-10psi. 10:1 seems like it's starting to get kinda high, but it IS an SR20 still. Just thought I'd double check.
 

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fugiot said:
ok, I know that the DETs are pushin an 8.5:1 ratio and the USDM DE's are squishin a 9:1. Seeing as the JDM DE's are higher at 10:1, is that still low enough for boost?
I'm only talking low pressure here, like 7-10psi. 10:1 seems like it's starting to get kinda high, but it IS an SR20 still. Just thought I'd double check.
Yes, you can still run up to about 12 psi on 10:1. Just a matter of safe tuning.
 
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