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Old 08-12-2009, 05:35 PM   #207 (permalink)
wstar
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Quote:
Originally Posted by t-ray View Post
That is ultimately where I was going with the gears question - based on the assumption that the car remained NA. I was wondering a gearing-reduced top speed had any practical impacts on real-world tracks.
From the service manual, the 6MT's ratios are:

1st 3.794
2nd 2.324
3rd 1.624
4th 1.271
5th 1.000
6th 0.794

.. and the rear end is 3.692. From that you can derive that 5th (on stock Sports Package wheels and rubber) tops out at about 160mph @ 7500rpm. So technically you don't *need* 6th unless you're on a track where your car could exceed 160, which doesn't sound like the kind of track people run these cars at . But still, it's not like you always have to be in the lowest possible gear all the time. 6th will still pull decently and be useful. If you went to a 3.9 rear end, it just makes 5th top out sooner, at about 152. If you also combined that with moving to say, 305/30/18 tires in the rear, the number drops to about 144.
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