Originally Posted by M-Technic
Boost is applied gradually between the start and end RPM, so it is kind of "ramped."
So, if your end RPM is set at 8000, and your motor revs to 12,000 RPM at the end of the straight, you spend 4000 RPM out of boost?
Im only asking what seems like previously repeated and simplistic questions because i have been setting my end RPM for max RPM of the motor for the last few months, and gearing so the motor is close to topping out at the end of the straight.
I alter the boost and turbo amounts to change how the car feels in the infield, plus the assumed 'mechanical' motor timing to stay at the 60 degree 'cap'. It seems there is still only so much you can do with a given FDR though... as the motors i use seem to like more gear than timing advance on the edge. If it comes to adding 2 to turbo (from 10 to 12) to get what i want, ill drop back to 10 and add a tooth on the pinion.
My FDR is usually higher than what would work for others as well. I might be at a 6.7 or so and others would be 6.3 (17.5). Regardless, the setup rips on the 17.5, 13.5, and 10.5's ive worked with... but they DO run warm (usually 180+).
And yes i know driving style plays a role in motor temps and FDR's. Im no Pro, but im no point-n-shoot type of driver either.
Anyways... just trying to make sure i grasp this concept fully. Im about to try running an 8.5 boosted... and raised my eyebrow when i found its max RPM was 30,100.