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targus · 07-07-2014, 09:32 AM

Is it possible for a converter to cause an issue where my car will make 3 or 4 passes within .04 of each other then out of nowhere make a pass that is .2 slow. On the pass where is slows down it loses ET everywhere starting with the 60'. Everything has been changed on the car trying to solve this issue, wiring, MSD, coil, fuel system, etc... I am of the assumption that if something was wrong in the converter it would continue to slow down, where as once I load up after making this slow pass, the next time to the track the car is right back to making good passes.

3000 lbs car
540" BBC
Ladder Bar Rear Suspension
Powerglide

I installed a data recorder to track engine RPMs this past weekend and on the two passes where the car fell off, the RPMs are very shaky from about .07 into the run. I will try to post a picture of the graph later.

07-07-2014, 09:32 AM	#1
targus Junior Member Join Date: Jul 2014 Posts: 8 Likes: 0 Liked 0 Times in 0 Posts	Inconsistency Is it possible for a converter to cause an issue where my car will make 3 or 4 passes within .04 of each other then out of nowhere make a pass that is .2 slow. On the pass where is slows down it loses ET everywhere starting with the 60'. Everything has been changed on the car trying to solve this issue, wiring, MSD, coil, fuel system, etc... I am of the assumption that if something was wrong in the converter it would continue to slow down, where as once I load up after making this slow pass, the next time to the track the car is right back to making good passes. 3000 lbs car 540" BBC Ladder Bar Rear Suspension Powerglide I installed a data recorder to track engine RPMs this past weekend and on the two passes where the car fell off, the RPMs are very shaky from about .07 into the run. I will try to post a picture of the graph later.