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what's a good a/f to be at when spraying?

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Old 06-13-2005 | 01:52 AM
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Default what's a good a/f to be at when spraying?
I've heard anywhere from 12.0-14.0, just depending you you're talking to. What's a good, safe a/f? thanks--andy
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Old 06-13-2005 | 03:23 AM
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14.0 thats to damn lean even for a N/A motor. Right now im at 13.0 and sometimes run into minor octane related problems.
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Old 06-13-2005 | 07:34 AM
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I always run 11.0-11.5 to be relativly safe. I don't think I would ever set the car up to run past 12.0 on the bottle.
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Old 06-13-2005 | 08:23 AM
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I also shoot for a flat 11.0 It also depends on how much your spraying IMHO
if your only blowing a 100 shot then you would be OK with a 12.0 I would definately stay at or below 12.0
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Old 06-13-2005 | 09:58 AM
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We tune most of our Nitrous cars around 11.8 to 12.1.In some casses we will go as high as 12.5.Depending on the customer.
Dave
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Old 06-13-2005 | 10:27 AM
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So whats the real danger in the higher AF numbers besides obviously leaning out!!?? Is it more for insurance if the pump or injector or something fuel related fails!!??
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Old 06-13-2005 | 09:41 PM
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The leaner a/f's will pound your motor into a paper weight. I set mine up currently at 11.5/11.8 depending on rpm and torque.
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Old 06-14-2005 | 12:21 AM
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I run 11-11.5
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