LE2 guys cam surge?
04-29-2008, 05:40 PM
#1
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Join Date: Jul 2006
Location: central illinois
Posts: 153
LE2 guys cam surge?
Do any of you guys running le2 heads and cam ever have a problem with cam surge at say light throttle, crusing at 1200rpm to 2000rpm? I just got this thing on the road and I cant really tell if it is a miss or just cam surge. And btw it pulls really hard and runs good at any real throttle.
04-29-2008, 07:41 PM
#2
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Join Date: Feb 2004
Location: Oshkosh, Wisconsin
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Do any of you guys running le2 heads and cam ever have a problem with cam surge at say light throttle, crusing at 1200rpm to 2000rpm? I just got this thing on the road and I cant really tell if it is a miss or just cam surge. And btw it pulls really hard and runs good at any real throttle.
04-29-2008, 08:18 PM
#3
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Join Date: Aug 2005
Location: Kantuckee Yo'
Posts: 4,405
Get a dyno tune, mail order tune wont cut it period.
It is running lean at those RPM's which causes most of the surge. The problem is if you run a closed loop tune, then its hard to get the PCM to add more gas within this range without affecting the rest of the RPM ranges. If you run a speed density tune then it can be tuned completely out. I encountered the same thing with my cam and I have two tunes to counter this problem.
It is running lean at those RPM's which causes most of the surge. The problem is if you run a closed loop tune, then its hard to get the PCM to add more gas within this range without affecting the rest of the RPM ranges. If you run a speed density tune then it can be tuned completely out. I encountered the same thing with my cam and I have two tunes to counter this problem.
04-29-2008, 10:38 PM
#4
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Thread Starter
Join Date: Jul 2006
Location: central illinois
Posts: 153
Get a dyno tune, mail order tune wont cut it period.
It is running lean at those RPM's which causes most of the surge. The problem is if you run a closed loop tune, then its hard to get the PCM to add more gas within this range without affecting the rest of the RPM ranges. If you run a speed density tune then it can be tuned completely out. I encountered the same thing with my cam and I have two tunes to counter this problem.
It is running lean at those RPM's which causes most of the surge. The problem is if you run a closed loop tune, then its hard to get the PCM to add more gas within this range without affecting the rest of the RPM ranges. If you run a speed density tune then it can be tuned completely out. I encountered the same thing with my cam and I have two tunes to counter this problem.
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