if u look at http://www.zeropointindustries.net/s...roducts_id=246


it says the lower compression is for tubro/supercharge
and
the high compression is for all motor /nitrious

my question is that y is it high comperssion for nitrious cuz my freind with a honda has low compression on his nitrious civic

can someone explain please

 

My small amount of engine knowledge says that because a turbo increases PSI, it would start at a lower compression ratio. Or I could be completely wrong, which I think I am.

 

mm well for turbo/supercharger, you want as much air in as possible, so low compression pistons allow for more. high comp. pistons for all motor create the same effect but with less air. something along those lines. as far as i know at least.

 

can maybe dezod or zpi answer this question ?

 

just guessing but maybe it is because honda motors tend to have a very high compression ratio to begin with ....