PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Cams and tuning

Old Jul 17, 2005 | 06:23 PM
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Default Cams and tuning

I was curious if untuned cammed cars generally run lean?In my case I will have an F13, so basically I want to know if it will blow up if I get on it untuned?
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Old Jul 17, 2005 | 06:40 PM
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ive seen it both ways really...id say try tot stay out of it until tuned.
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Old Jul 17, 2005 | 08:37 PM
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Thats no fun at all,I may have to wait a couple weeks.
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Old Jul 18, 2005 | 10:01 AM
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Once I started tuning mine, I was surprised to see how rich it was after putting the cam in. I was scared to have anyone around my car with a lit cigarette!
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Old Jul 18, 2005 | 10:15 AM
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Mine was rich too, but I turned the MAF off as well. Hadn't run it with the MAF on yet.
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Old Jul 18, 2005 | 05:29 PM
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Ok so its pretty much a given these cars run rich even with a cam until tuned?Also,I have duals,LTs,lids,ported TB,and no cats if that matters.Im tired of waiting to put the damn thing in I just dont want to blow it up!
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Old Jul 18, 2005 | 05:37 PM
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Originally Posted by AaronR
Ok so its pretty much a given these cars run rich even with a cam until tuned?Also,I have duals,LTs,lids,ported TB,and no cats if that matters.Im tired of waiting to put the damn thing in I just dont want to blow it up!
Mine was also rich after the cam...

Bill
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Old Jul 18, 2005 | 05:59 PM
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Wow even with the torquer huh?I guess I got the idea a cam would result in the engine running lean cause I saw guys getting bigger injectors.
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Old Jul 18, 2005 | 08:48 PM
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Once you get a tune, im guessing the Air/Fuel adjusts and isn't too lean or rich anymore but just in the middle ? I think? Right?
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Old Jul 18, 2005 | 10:14 PM
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Mine was richer as well according to the 02 sensors.
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Old Jul 18, 2005 | 10:34 PM
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With my G5X2 cam just installed I went to the dyno untuned and my AFR, according to their wideband, was between 14.7 and 15.1 or so, very very lean.
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