- Joined
- Nov 1, 2008
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AFAIK it increases both. You can more or less just raise the whole curve a bit. The reason your car becomes faster, is that it gets more torque and therefor hp to the ground. Maybe I'm wrong, but why else would a car be faster with shorter gears? To go faster you need to increase power at the wheels/ground OR lessen the losses like drag and drivetrain loss. By modding your gearbox with a shorter fd (for example) you are not decreasing any form of resistance so it must be increased hp/tq at the wheels.Feel free to correct me if im wrong, but I never thought that the 'torque' gains from gearbox play, higher FD etc would show up on a dyno? as it is spread over the revs rather than to increase the peak torque figure.
On the other hand, that would mean that horsepower at the flywheel wouldn't change. But if it wouldn't, it would mean that the drivetrain has become more efficient and that there are less losses. So I'm not sure what part of my reasoning is wrong.
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