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Old 11-03-2011, 11:49 AM   #67
verlumpt
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Quote:
Originally Posted by 70NYD View Post
diesels are what 17:1? MOST of them are boosted LOL
with petrol, and 12.5:1 you will get low boost but LOTS of power. energy is extracted MORE at a higher comp ratio, so a 10:1 running 10PSI will get more power than a 8:1 running 10PSI
Yes, but if it were 8:1 you could run over 20 PSi and make more power in the end. Power delivery and power band would be completely different, but the numbers for low comp + high boost will almost always be higher than high comp + low boost.

Just be patient for those 'needing' boost. I'd bet you will see a turbo variation from Subaru in this chassis... or just plan on replacing bottom end components to get a more reasonable 9:1 or less CR
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