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Just curious as to whether there's some sort of magic equation to determine the best compression ratio for a certain level of boost?

Alex
 

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Two SC 61's = trouble
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Hmm that depends.. Like 4 valve motors can get away with heaps of compression.
But as a rule of thumb under 9 to 1 0ver 10 Lp imo...Unless you have good management and fuel is up to it etc....
 
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