Spraying on high compression
#1
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I am running a 383 with 11.5:1 compression and was thinkin about spraying at most proabably a 150 shot was wondering if it would be safe spray with that kinda cr. The motor has 4340 forged crank and h beam rods with mahle forged pistons.
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#10
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Originally Posted by Robert56@NitrousDirect
Nitrous loves compression, and that's really not that high. Some run much higher for spraying.
Robert
Robert
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FI doesnt like compression but nitrous loves it. Spray that thing with a 250 DP! As long as the rings were setup for it. If you werent setup for a big shot of n2o then 150 should be max is my guess.
#12
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Originally Posted by 99blancoSS
![Werd](https://ls1tech.com/forums/images/smilies2/werd.gif)
FI doesnt like compression but nitrous loves it. Spray that thing with a 250 DP! As long as the rings were setup for it. If you werent setup for a big shot of n2o then 150 should be max is my guess.
#14
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Originally Posted by bodydropped
I've always heard that FI doen't like compression but I don't believe it.I have a friend that runs 10:1 and runs alot of boost.10:1 isn't alot but everybody that runs alot of boost usually runs around 8:1 which is great but you can run more.I know people that run 10.5 outlaw and outlaw DR and they run more compression than you think on nitrous and with turbo's.
Robert
#15
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The big dogs in 10.5 outlaw run around 15:1(give or take a lil)compression and have 3 to 4 kits but they have dual 15 pd bottle and don't leave on alot of bottle pressure.I know a few turbo guys running 10:1 and pushing over 40 pds of boost.I know a lil here and there but i'll leave the tuning on all that to them.
#16
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Actually Static Compression is just as important as Dynamic compression but thats besides the point and i won't get into an Engine Theory and thermodynamics debate but i'll be spraying a 300-400 shot on 14.2:1 static 8.8:1 dynamic.
Just make sure you have enough clamping force on the heads as you bumo up the cylinder pressure to keep the heads from lifting.
Just make sure you have enough clamping force on the heads as you bumo up the cylinder pressure to keep the heads from lifting.