RPM sweet spots on 6MT

[CatchM3]

OK folks, I hope I don't get any heat from this question.
I've driven manual in the past but it's been awhile so I'm some what relearning my techniques.

At what RPM's are you guys shifting to get the most power of our cars? Launching techniques?

Thanks

Anthony

[Hammer]

Shift at redline( close to limiter) and launch the car at about 4-5k rpm

and next time perform the

[SS32]

4k seems too high for a launch. I launched at 3k and it just burned the tires. And I've actually found that shifting is a little smoother ~7500 than redline.

[!Xoible]

Originally Posted by Hammer

Shift at redline( close to limiter) and launch the car at about 4-5k rpm

and next time perform the

lol launch at 4-5k rpm = major wheel spin
i find dumping at 3500 is good

for slow/normal driving to get a smooth shift i shift at 3k. for a bit more than normal 4-5k shifts are nice. what matters to me is when i get into a higher gear i want to be over 3k rpm to feel some torque. any shifts that make ur RPMs go below 3k make u feel the car is hella slow. just no torque (that's acceptable by me anyway)

the problem with shifting at 5k is once i get there i cant stop so i go to redline

[SlammedR8]

Originally Posted by ///Mantis

lol launch at 4-5k rpm = major wheel spin
i find dumping at 3500 is good

for slow/normal driving to get a smooth shift i shift at 3k. for a bit more than normal 4-5k shifts are nice. what matters to me is when i get into a higher gear i want to be over 3k rpm to feel some torque. any shifts that make ur RPMs go below 3k make u feel the car is hella slow. just no torque (that's acceptable by me anyway)

the problem with shifting at 5k is once i get there i cant stop so i go to redline

I have the same problem

[footie]

Controlling wheel spin is an art which few people ever master. The M3 may be similar to the TVR's of old which you basically part throttled through first until about 5500rpm before giving full throttle. I too reckon a launch of 3000rpm would be best unless the surface was super sticky.

[!Xoible]

^^ slipping vs. dumping the clutch?

edit: u mean go partial throttle, rev to 5k then dump clutch and go full throttle? if that's what u mean the M3 will spin like crazy

[footie]

Originally Posted by ///Mantis

^^ slipping vs. dumping the clutch?

edit: u mean go partial throttle, rev to 5k then dump clutch and go full throttle? if that's what u mean the M3 will spin like crazy

No I mean maintain partial throttle up to 5k after you have dropped the clutch, though remember that this was what we done on a TVR which had similar amounts of torque and weighed only 1100kgs. The whole objective is to stop wheel slip without bogging the engine down, part throttle might mean almost 7/10th in an M3.

[!Xoible]

Originally Posted by footie

No I mean maintain partial throttle up to 5k after you have dropped the clutch, though remember that this was what we done on a TVR which had similar amounts of torque and weighed only 1100kgs. The whole objective is to stop wheel slip without bogging the engine down, part throttle might mean almost 7/10th in an M3.

but that will result in a slower launch than just dumping the clutch around 3-3500 rpm

[footie]

Originally Posted by ///Mantis

but that will result in a slower launch than just dumping the clutch around 3-3500 rpm

Don't know, best try it and see. Different cars call for different techniques.

[!Xoible]

cool i'll try on my way to lunch. i hope i dont kill anyone

[footie]

Originally Posted by ///Mantis

cool i'll try on my way to lunch. i hope i dont kill anyone

Mainly yourself, there's enough death on the road without you joining the numbers.

[!Xoible]

dude dying > killing someone > seriously injuring yourself > seriously injuring someone.

okay maybe i'll try this some other day

[Ronin13]

I've seen a few posts about wheel spin here. I haven't tried a drop clutch launch on the M3 yet. But, coming from a high RPM car, some wheel spin is desired at times. To launch my no torque S2K you actually need drop with enough RPM so that when the tires do hook up, you are in the middle of the power band. Now the M3 has a lot better torque/weight ratio, a better clutch and a flatter torque curve. Are people seeing that they are sitting still and just spinning the tires in the M3 or are you getting forward motion and then pulling hard once the tires hook up around the in the middle of the torque curve? The latter may be faster. I think R&T hit their 12.5 qtr with a 3500-4000 clutch drop.