Thoughts on this AFR after cam???
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From: Sierra Vista, AZ
Thoughts on this AFR after cam??? Ok, after cam install and some heat cycles and a few hundred miles, I grabbed the Wideband, wired it up and drove around for real load results. At idle it is average of 12.7:1, of course smells rich as hell though. Cruising it drops to average of 12.5:1. Now at WOT as the RPM's go up the AFR goes down to the tune of 12.0:1 at only 5900rpm's. Yeah I will be spraying but I prefer a 12.6 across the board.
Now, would a descreened MAF make it richer like this and make it so it wasnt real stable (as in sometimes it is 12.9 at idle and others 12.5)? Is this normal for a cam only car?
I am using the predator and am thinking of trying the stock tune and read it from there since so many have lean issues with stock tuning???
Now, would a descreened MAF make it richer like this and make it so it wasnt real stable (as in sometimes it is 12.9 at idle and others 12.5)? Is this normal for a cam only car?
I am using the predator and am thinking of trying the stock tune and read it from there since so many have lean issues with stock tuning???
Thread Starter
Restricted User
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Joined: Sep 2002
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From: Sierra Vista, AZ
Re: Thoughts on this AFR after cam??? The more I think about this I am wondering if the heads aren't choking out the cam, and thus running richer as the rpms ge tup in the peak area...would be nice to ge tit sorted out and compare this upcoming weekends runs with the Dyno readings.
