Quote:
Originally Posted by v1nc86
I've always been recommended to shift gears around 6200 RPM. And that's what I do at the drag strip. My best 1/4 mile run so far is 12.6@107.9  |
6200 is pretty safe. If you look at how fast torque falls off from this dyno (standard N54 dyno pulled from some random thread), you can see the longer you keep it in gear, the more it falls off. The idea is that you have to take the TQ number at the given RPM and multiply that by the gearing ratio. First gear has the highest ratio so keeping it gear a little longer is okay, then each other gear, you want to shift earlier and earlier til about 4th gear where you'd shift around 6000 to 6100 RPMs. Hope that makes sense.
