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Safe A/F ratio for 75 shot?

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Old 05-17-2006, 10:09 PM
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Default Safe A/F ratio for 75 shot?

I recently got the car tuned for the new cam/stall,
and the a/f ratio is right at 13.0, will that be safe for a 75 wet shot?
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Old 05-17-2006, 10:20 PM
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yes sir
Old 05-19-2006, 12:56 AM
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That's pretty lean for a nitrous shot isn't it? I usually see guys recommending around 11.8-12.5 or so.
Old 05-19-2006, 01:14 AM
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The car is tuned for 13:1 thats good. If you dont stray far from the manufacturers recommended jet pattern your nitrous kit will richen it up while on spray, which is exactly what you want. Although 75 is wee wittle shot, I would say 12.2-12.8 rich to lean.
Old 05-19-2006, 01:24 AM
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I would shoot for 11.8 AFR, but thats just me.
Old 05-19-2006, 09:01 AM
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I tuned my car for 13.0 all across for NA. The recommended 150 shot jet ratings richened me up on the spray from mid 12's down to around 11.3 at the higher rpm's.

So yeah 13.0 is great becuase the recommended jetting will richen you up.
Old 05-19-2006, 11:39 AM
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if your concerned about running lean on the bottle, just put a 100 shot fuel nozzle in place of your 75 shot fuel nozzle. that will richen things up.




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