NITROUS OXIDE System Designs | Installation| Wet/Dry/Direct Port

AFR formula for nitrous?

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Old Sep 10, 2012 | 04:00 PM
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nonnieselman's Avatar
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From: Crystal Springs, MS
Default AFR formula for nitrous?

anybody ever seen this?

Target A/F Ratio = [(engine hp / total hp) x 13] + [(nitrous hp / total hp) x 7]
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Old Sep 10, 2012 | 04:42 PM
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From: seminole tx
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Huh thats pretty cool. Did a rough guesstimate on my truck and it puts me at 11.8 afr. Right now mine runs 12.4 n/a and with the jets harris speedworks says to use it drops it to 10.9 afr on a 100 shot. Guess i need a smaller fuel jet to lean it out a bit more
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Old Sep 10, 2012 | 04:44 PM
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Cool.. just found it.. ill get around to trying it on my setup and see what happens..


yea you could drop a fuel jet size.. or go up on the nitrous jet size.. or add pressure?
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