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Old 06-26-2009, 03:26 PM   #2
slowgreen99
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Join Date: Jan 2008
Location: Summerville
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Quote:
Originally Posted by jmd View Post
my son has a 2007 mustang. he bought a pypes off road exhaust kit and a intake kit that comes with a tuner. the tuner comes with a tune for his mods. we put it on the dyno and he had 14.5 afr at idle. at wot it never dropped below 13.99 afr. we stopped the pull at 4600 rpms because of the afr. the guy who put the tune in the tuner says it is ok because the sniffers you put on the tail pipes for afr readings are not accurate. i think he needs to add fuel. what do you guy's think. tks
IMO, and im not a "tuner", but put a true wideband on it, not the clip ones. That will be step one. Step 2 is to richen it up a little bit if it doesnt give you a richer a/f. Just my .02
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