N/A motor compression question
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Joined: Nov 2004
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From: new carlisle, IN, USA
N/A motor compression question
ok im thnikin about goin high compression on my second H22 motor i wanna do pretty high but whats the highest i can go without have to put valve reliefs on the pistons ????? also what company should i go with i was gonna go with CP.Suggestions are welcomed on building this motor
Re: N/A motor compression question (silentvoice19)
you are always gonna have valve reliefs, its just the dome that will get taller. they can be made for any compression ratio you want. I like Wiseco pistons.
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Re: N/A motor compression question (silentvoice19)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by silentvoice19 »</TD></TR><TR><TD CLASS="quote">ok im thnikin about goin high compression on my second H22 motor i wanna do pretty high but whats the highest i can go without have to put valve reliefs on the pistons ????? also what company should i go with i was gonna go with CP.Suggestions are welcomed on building this motor</TD></TR></TABLE>
CP Pistons are a good choice. Check out: http://www.laskeyracing.com/shop/cppistons.htm
The highest CR for street use should be between 12-13:1. And thats pushing it, IMO. It really depends on what octane gas is available to you and how good your tuner is.
What tuning program do you plan to use? Just curious.
CP Pistons are a good choice. Check out: http://www.laskeyracing.com/shop/cppistons.htm
The highest CR for street use should be between 12-13:1. And thats pushing it, IMO. It really depends on what octane gas is available to you and how good your tuner is.
What tuning program do you plan to use? Just curious.
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Joined: Nov 2004
Posts: 175
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From: new carlisle, IN, USA
Re: N/A motor compression question (hu)
i was gonna run chrome seem to be a good company plus i have some friends who are damn good with it. Im building a boost h22 right now and im kinda new to the N/A thing i got wiseco right now 9:1 but i have another h22 i wanna do and put into a hatch
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Re: N/A motor compression question (silentvoice19)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by silentvoice19 »</TD></TR><TR><TD CLASS="quote">i was gonna run chrome seem to be a good company plus i have some friends who are damn good with it. Im building a boost h22 right now and im kinda new to the N/A thing i got wiseco right now 9:1 but i have another h22 i wanna do and put into a hatch</TD></TR></TABLE>
9:1 is good for a hatch. Generally speaking 11.5:1 is very safe for the street. JD3 went with 12.0:1 on pump gas
9:1 is good for a hatch. Generally speaking 11.5:1 is very safe for the street. JD3 went with 12.0:1 on pump gas
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