G37 Coupe

Launching + Shifts (5AT)

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Old May 13, 2008 | 03:08 PM
  #16  
KAHBOOM's Avatar
KAHBOOM
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From: NC
Ya DS mode makes the car shift at th eoptimum shift point in 1st gear.

MM mode makes you have to react abour 500 RPM before the redline otherwise the car revs up too fast for the electronics to catch and shif tfrom 1 - 2.
If you can time it right in 1st gear then you should be able to get times comparable to that in DS mode but DS mode will get it right every single time.
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Old May 13, 2008 | 05:59 PM
  #17  
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kg37
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From: New York
Originally Posted by KAHBOOM
3000 is too much in most conditions. That will build up too much heat in your tranny and unless you break traction it will cause the TQ converter to bog. Either way that's not good when dragging (breaking traction too much or boging down)

1300 is the most I would rev up to.

The best time I've seen was VDC off, just slam the gas shifting in MM(timing had to be perfect in 1st gear)

The TQ converter in this car has high stall speed so extreme brake torquing in this car will have only minimal effects if any.
i agree
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Old May 16, 2008 | 03:17 PM
  #18  
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bill90879
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Sorry, this might be a dumb question, but isnt rev'ing the rpm up in neutral and then popping it into D or DS mode bad for the car? Is there another way you guys are rev'ing it up? (brake and gas at the same time?)
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Old May 16, 2008 | 04:07 PM
  #19  
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KAHBOOM
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From: NC
Neutral drop will kill your tranny

The thread is referring to brake torquing the transmission.
An AT tranny will allow you to brake torque as high or even a little higher than the stall speed of the torque converter It's relatively safe for the transmission. However it is hard on the brakes if you go past the stall speed and excessively brake torquing builds up heat which isn't good for the transmission.
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