Best RPMs for shifting
04-20-2010, 05:29 PM
#46
Rennlist Member
Pheh! I have a break between classes so I can play for a bit 
Dave, It sounds like there is a little bit of truth in both angles we are attacking this. While I agree that hp is what I want on the straights (high speed sections) it's torque that I value in the mid speed sections. For a street car that is relatively heavy with a stock box we need all that torque we can get to put that hp down.
If I had a high revving lightweight car, no question would I want hp.
My brain hurts right now....are we getting closer together?
Dave, It sounds like there is a little bit of truth in both angles we are attacking this. While I agree that hp is what I want on the straights (high speed sections) it's torque that I value in the mid speed sections. For a street car that is relatively heavy with a stock box we need all that torque we can get to put that hp down.
If I had a high revving lightweight car, no question would I want hp.
My brain hurts right now....are we getting closer together?
So just scrap torque, forget about it, and when somebody says they've got lots of torque just pretend they said "I've got good low-mid range power" and leave it at that.
04-24-2013, 08:48 AM
#56
Depends how long you want your engine to last ! While there is some satisfaction to go to 7k when oil is up to temp ...you are going to get a lot of thrills at 5-6k and have a hard time finding public roads where it makes much difference beyond that. Likewise these engines don't like to be driven under 3k all the time ( or so they say). Will engine last longer with fewer excursions to redline ? Not sure .. But seems to make sense ...
04-24-2013, 09:21 AM
#57
Rennlist Member
Mostly common sense:
Don't lug it
Don't rev the **** out of it when it is cold
Vary your RPMs a bit
A driver who is in tune with his vehicle knows where to shift it as it feels right. On my 2 lane road commute my tach is between 2-3K most of the way with the odd blip up to around 4k here and there.
Don't lug it
Don't rev the **** out of it when it is cold
Vary your RPMs a bit
A driver who is in tune with his vehicle knows where to shift it as it feels right. On my 2 lane road commute my tach is between 2-3K most of the way with the odd blip up to around 4k here and there.
04-25-2013, 12:16 PM
#58
Racer
Mostly common sense:
Don't lug it
Don't rev the **** out of it when it is cold
Vary your RPMs a bit
A driver who is in tune with his vehicle knows where to shift it as it feels right. On my 2 lane road commute my tach is between 2-3K most of the way with the odd blip up to around 4k here and there.
Don't lug it
Don't rev the **** out of it when it is cold
Vary your RPMs a bit
A driver who is in tune with his vehicle knows where to shift it as it feels right. On my 2 lane road commute my tach is between 2-3K most of the way with the odd blip up to around 4k here and there.
I also subscribe to Dell's torque optimization theory .... 3 yrs later. Good thread!
