6000, 7000 or 8000 rpm tach?

I would like to have a shift light too, because I agree with what you guys are saying.

But I can't seem to find a shift light in a 6,000 rpm gauge. I may have to go with the 8,000 rpm tach, because I can't find a 7,000 rpm tach with a shift light either. And, a fast moving tach would be more difficult to accurately hit a shift point, than a slightly slower one that has a shift light. However, the tach itself I would use for data, not for racing.

I'm likely going to fabricate my own bracket similar to Valiant1's … since I or others can't seem to contact him.

Up to now, I've used mathematics to determine where I'm trapping. According to my math, I trap between 4,400 and 4,500 rpm at 99 mph.

So I placed those marks on my speedo to be at ~5,000 rpm shift points. Since I had just started putting the love back into the car, I figured I should be somewhat conservative with it and hold it to 5,000 rpm.


7milesout