NITROUS and 11.8: compression ratio
07-17-2005, 08:54 PM
#1
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NITROUS and 11.8: compression ratio
im gonna be run n a LS/VTEC motor with 11.8:1 compression ratio (GSR head mated to LS block with JDM P30 pistons) and will be spray n a 75 shot. is this too much compression for nitrous????
currently im run n a full LS motor and the compression ratio is a 11:1 with the P30 pistons. im run n a 75 shot on it with no problems
currently im run n a full LS motor and the compression ratio is a 11:1 with the P30 pistons. im run n a 75 shot on it with no problems
07-26-2005, 06:12 PM
#3
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Re: NITROUS and 11.8: compression ratio (boosted k20)
nitrous loves compression but stock cast pistons dont like n20 that much.
i would be carfull running that much compression and n20 with those pistons......make sure you have it jetted on the rich side.......very rich.....
i would be carfull running that much compression and n20 with those pistons......make sure you have it jetted on the rich side.......very rich.....
07-26-2005, 06:34 PM
#4
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Re: NITROUS and 11.8: compression ratio (non-VTEC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by non-VTEC »</TD></TR><TR><TD CLASS="quote">nitrous loves compression but stock cast pistons dont like n20 that much.
i would be carfull running that much compression and n20 with those pistons......make sure you have it jetted on the rich side.......very rich..... </TD></TR></TABLE>
100% correct, cast=bad
but compression loves nitrous, and so on. i would start at a 50 and watch the plugs and AF ratios
i would be carfull running that much compression and n20 with those pistons......make sure you have it jetted on the rich side.......very rich.....
</TD></TR></TABLE>100% correct, cast=bad
but compression loves nitrous, and so on. i would start at a 50 and watch the plugs and AF ratios
07-26-2005, 07:28 PM
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Re: NITROUS and 11.8: compression ratio (mrbsponge)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mrbsponge »</TD></TR><TR><TD CLASS="quote">100% correct, cast=bad
but compression loves nitrous, and so on. i would start at a 50 and watch the plugs and AF ratios</TD></TR></TABLE>
i would start at a 35 and finish with a 50, MAX with those cast pistons you're lookin for trouble. so long as its tuned you'll be ok.
but compression loves nitrous, and so on. i would start at a 50 and watch the plugs and AF ratios</TD></TR></TABLE>
i would start at a 35 and finish with a 50, MAX with those cast pistons you're lookin for trouble. so long as its tuned you'll be ok.
07-26-2005, 07:43 PM
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Re: NITROUS and 11.8: compression ratio (tegasaurus)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegasaurus »</TD></TR><TR><TD CLASS="quote">
i would start at a 35 and finish with a 50, MAX with those cast pistons you're lookin for trouble. so long as its tuned you'll be ok.</TD></TR></TABLE>
it'll take a lot more than a 50
i would start at a 35 and finish with a 50, MAX with those cast pistons you're lookin for trouble. so long as its tuned you'll be ok.</TD></TR></TABLE>
it'll take a lot more than a 50
07-26-2005, 07:46 PM
#7
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Re: NITROUS and 11.8: compression ratio (JSpin)
75 is safe with cast as lng as your ratio is good......ran 75 shot on cast for a while 100 shot as well
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