D
Deleted member 21174
Guest
I was looking at MyChron data from the last few practices and races. On a long (500) straight away that goes up hill about 3/4 of the way the RPM goes crazy for about .2 seconds. Always in the same spot, always the same pattern. RPM goes from 5900 to 4100, zig zags around, then back to the 5800-5900 until we hit the corner. Is this a sign the engine is going lean? If so should I replace fuel filter? fuel pump? Float valve? Check all jets especially pilot jet for clogs? Change float level to have more fuel in the bowl? Raise the rear of the float bowl slightly to keep it more on the level going uphill? Do momentary blips like this even matter - I don't see an impact on the GPS speed and the driver does not notice it - we only see RPM going haywire on the Race Studio graph.