what pistons to used in b16 sc build
02-03-2009, 08:24 PM
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what pistons to used in b16 sc build
i have a b16 and jrsc as a dd . i want to know should i use high compression or low compression pistons
02-03-2009, 09:05 PM
#2
Re: what pistons to used in b16 sc build
Supercharged setups are not like turbocharged setups. the compression you actually have (about 10.4:1-11.0:1) are ideal. Remember, you want to keep static compression a bit higher, since w/ superchargers use power to MAKE power via their pulleys, unlike turbochargers which use exhaust energy only to power the system.
02-04-2009, 05:40 AM
#3
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Re: what pistons to used in b16 sc build
10.5:1 usually works best. The main issue is that you have a limit on the mass of air that you can move, so you want to keep the CR high enough to make the best use of the air available, but not so high that you will be knock limited when tuning. That should get you over 225 WHP with good tuning.
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