Brodyj
02-11-2004, 10:26 AM
I was wondering what you thought about torque and power tuning. The first
iteration of the intake and the exhaust is roughly tuned with in maybe 3%. The
torque peak is very flat from 5500 to 9500 rpm with a change in torque less
than 4 ft-lb. The power peaks out at 9000 rpm at 61 HP. I want to know if
these are good torque and power curves or should I tune to focus torque at an
rpm band that that is narrower to maximize power for our formula car?
I know flat torque curves are desirable on the road and for a drivable formula
car, but is a 4000 rpm wide band excessive? The largest difference in gears is
first to second and the rpm difference is 850 rpm, I think? Is it safe to
assume that most drivers can keep the engine speed within 2000 rpms of max
power? If so, then we should focus our exhaust and intake tuning around a 2000
rpm band in order to make more power, right?. And where should we focus this
tuning? Right before the current peak in power at 9000? This would insure
that at lower revs coming out of a corner torque would be at its peek to
accelerate you out of the corner? Right? Please offer your opinion and
enlighten me.
Thanks
iteration of the intake and the exhaust is roughly tuned with in maybe 3%. The
torque peak is very flat from 5500 to 9500 rpm with a change in torque less
than 4 ft-lb. The power peaks out at 9000 rpm at 61 HP. I want to know if
these are good torque and power curves or should I tune to focus torque at an
rpm band that that is narrower to maximize power for our formula car?
I know flat torque curves are desirable on the road and for a drivable formula
car, but is a 4000 rpm wide band excessive? The largest difference in gears is
first to second and the rpm difference is 850 rpm, I think? Is it safe to
assume that most drivers can keep the engine speed within 2000 rpms of max
power? If so, then we should focus our exhaust and intake tuning around a 2000
rpm band in order to make more power, right?. And where should we focus this
tuning? Right before the current peak in power at 9000? This would insure
that at lower revs coming out of a corner torque would be at its peek to
accelerate you out of the corner? Right? Please offer your opinion and
enlighten me.
Thanks