Stock timing is used?
Posted: May 18th, 2013, 9:23 pm
Stock timing is used when putting a comp cam in "231"?
Thanks
Thanks
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Jeep - AMC 4.0L and 4.2L Stroker Enthusiasts
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Stock timing is used?
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Re: Stock timing is used?
Posted: June 3rd, 2013, 7:22 am
What timing are you asking about, valve timing or ignition timing?
Re: Stock timing is used?
Posted: June 3rd, 2013, 8:25 am
Ignition
Re: Stock timing is used?
Posted: June 3rd, 2013, 8:34 am
That depends on your engine controls. If you have the 4.0 donor, the computer is in control of ignition timing and you can't change that.
Re: Stock timing is used?
Posted: June 3rd, 2013, 8:39 am
Just did a cam and performance head swap. Thanks for info.
Re: Stock timing is used?
Posted: June 14th, 2013, 10:19 am
Controlled by the PCM.
Re: Stock timing is used?
Posted: June 14th, 2013, 10:23 am
dizzy needed to be indexed. Problem solve. She is running. 