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Cams and Computer

Posted: Fri Mar 15, 2013 3:42 pm
by t3chn0dispenSR
Okay so I have Crower stage 2 cams non-turbo that I am about to put in my DOHC. I have a Mopar Performance Computer and was wondering if that computer will be able to handle the new cams, or do I have to get another controller of some sorts?

Posted: Mon Mar 18, 2013 1:39 am
by sikoticbrown
Cams will swap in just fine. Worst thing that will happen is you may have a pig rich idle and smell like a gas station. You may run into a "searching for idle" issue due to low vacuum and fat idle. It won't hurt anything, but your ego.

If that bothers you, you can get a SAFC or equivalent and back off fuel at idle. I've done this on my SOHC with a Crane 14. It still searches some, worse when it's cold.

Mopar PCM's are notorious for making a fat fuel curves anyways.

Posted: Mon Mar 18, 2013 3:16 pm
by t3chn0dispenSR
should I be concerned about running lean up top?

Posted: Mon Mar 18, 2013 11:42 pm
by sikoticbrown
That's a possibility. Only way to find out is with a wideband or on the dyno. It should be okay. Mopar PCM's really like to fatten up the fuel curve.

Safe gambling would be bump up the fuel pressure a few lbs and then tune accordingly. More gas is better than no gas.

Buy a wideband. It's your best friend in this sort of game. It's money well spent.

Posted: Tue Mar 19, 2013 12:02 am
by t3chn0dispenSR
Alrighty sounds like thats what I need to do. Thanks for the input.

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