Compression Question
#12
Re: Compression Question
Originally Posted by BoostinStuff
like slo crx said its all in the tuning you can run high compression and high boost just fine without detonation as long as its tuned properly
10:1 on a 22RE engine - 4cyl 8 valve would be about the limit on pump gas with NO boost.
You can tune anything. Or run higher octane. Pulling timing helps, but it can result in high EGTs that are not sustainable for your pistons and/or vavles.
Consult the A6 experts to see how they're doing boost. It sucks being in the "learning curve" on a motor that hasn't been boosted before. The learning curve is expensive!
#13
Re: Compression Question
Originally Posted by hany
great work. did you went dyno befor ?
Originally Posted by PaRaDoX
damn thats high compression, im running 8.5:1 currently with plans to drop it to 8.1:1
but ive heard of guys running 12:1 properly tuned without a issue...
if you want to drop it just get some copper fat *** headgaskets, its the cheaper way, other than than you can bore out the combustion chamber on the head/s or use lower comp pistons...
10:1 is a tad high id be aiming for ATLEAST 9:1 to avoid detonation
but ive heard of guys running 12:1 properly tuned without a issue...
if you want to drop it just get some copper fat *** headgaskets, its the cheaper way, other than than you can bore out the combustion chamber on the head/s or use lower comp pistons...
10:1 is a tad high id be aiming for ATLEAST 9:1 to avoid detonation
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Hellbert
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