Thursday, April 1, 2010

Tuning at Carolina Auto Masters


Drove out to Durham, NC yesterday to visit Jeff at Carolina Auto Masters. Selected Mutt's cam from the boneyard of small cams customers upgraded from, and got a good little cam to give Mutt a bit more go along with the free flowing exhaust and headers, and a small shave to the heads.

While there, Jeff reprogrammed the PCM to remove unnecessary emissions, match it to the cam, set the right tire size and rear end gear ratio, and tune the transmission. About the only negotiation was on the WOT 3-4 shift speed where I asked Jeff to back it to 130 MPH. Past experience open road racing showed the car cruising between 130 and 145, and I thought 130 would have the car downshifting too much if I open road race again. The difference in shift speed is around 600 RPM, taking it from just over 6000 rpm to just under 5500 rpm.

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