Quote:
Originally Posted by mlsataec
Definitely go with the gears. I would say a 4.10 would be noticeably better thatn the 3.90, but you must consider where you are driving. I too have a '00 GT Convertible, but I have a 5 speed. I went with a 3.90 gear and am very satisfied. I also bought the Superchips tuner (mostly to correct the speedo) and set it to the performance level. Definite noticeable increase in HP. I chose the 3.90 gear because I do alot of freeway driving and at 70 to 80 MPH in OD I'm running about 2,600 RPM. That's about as high an RPM I would want to sustain for long periods of time and not decrease the life of my motor too much. But who am I trying to fool? I can't keep my foot out it. I really like the acceleration I've gotten on the freeway in 4th gear above 60 MPH.
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it wont hurt the motor... and a 3.90 to a 4.10 is only about 150rpm
I have driven my car for 4 hour trips with cams a blower and 4.10s turning 3000rpm and has never missed a beat