Top Speeds in Different Gears (6MT)

GTRFAN · 10-23-2009, 08:14 PM

Quote:

Originally Posted by 370Zsteve

Resistance from the air will flatten those numbers as speed increases in 5th and 6th. The Z has nice drag coefficient spec, nonetheless physics will take over eventually.

My limited Physics knowledge says that at a certain point, the car will not be able to accellerate any further as the wind resistance will be too great, so it will never see the 7500 redline in 6th. It will just sit on a lower rpm and be unable to push through the wind given it's known HP output.

More power and torque will change this.

Quote:

Originally Posted by kannibul

Also, it looks like we should be dyno'ing the car in 5th gear?

I've been saying this all along on other threads. The only problem with using 5th is running into the speed limit of the rollers on the dyno. Some dyno's only support 200km/h, so using 4th is the only option to keep the speed down. (shoud only vary by a few kW anyway.)

my 2c

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