Compression N2O/Boost
What would be an idea comp. ration on a 4.6 with a 125 shot. I was thinking somewhere in the 10:1 area.
Boost will be in its future, thats where the dilemma comes in to play, is there a happy medium? The engine is being built with full forged internals and will get a set of aftermarket heads with cams. thanks guys! :) |
If boost is in the future then I'd stay around 9:1 or 9.2:1. But if you are going to keep the boost down to a moderate psi you can keep the factory comp and be ok as long as the tune is safe (fat a/f; moderate timing).
-Markl |
same idea. if your not planning on running nitrous for ever then the lower the compression ratio u go with the better it will be for boost. with a 10:1 ratio you wont be able to run as much boost. 6-8 psi the most and thats gonna be pushing it on a stock bottom end
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The internals would be forged. Would that be pushing the block if I wanted to run maybe close to 10psi (10:1 comp)? Im not sure what that would put me at for hp, but ive heard that these blocks arent good past ~500hp
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at that point if your going to have forged internals i would talk to a respected mustang shop and find out what combo for compression to run with the amount of boost you want to run. whos blower are you planning on running?
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