The issue I am having is when I was running my crate motor my rpm's were always spot on what they should be at every track for the gear ratio I have in the car. I put my nlms motor in and suddenly I have to run 30 points more gear than anyone else to make the motor turn the proper 7800. And I know the info I am getting from my fellow racers is correct. The ones I am very close to and ones I am not so close to all gave me very comparable gear ratios to what each of them run then I have to go another 30 points higher than that. I dropped my crate back in during the rebuild period on my steel motor and the rpm's were correct again so I know it isn't a binding issue in the driveline and I rebuilt the motor with better flowing bowtie vortec heads for this season and updated some other things that should help it turn more rpm's a bit easier. Still same problem. Now I've gotten rid of my crate for another all steel motor. This one is a roller not nlms and same problem on it. I'm looking for some info on what the problem could be. I've ran it without the chip and installed another tach that gave the exact same reading and I'm not sure where to go from there. I called msd and they said they doubt it would be the box with it running fine with one motor but not the other. They oretty much said either it will work or it wont. Thanks in advance for any info.
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