Quote:
Originally Posted by Dragoneye
The only reason I asked, is because I've got this racing simulator game...stop laughing...that allows you to change the Gear ratios of every gear in the tranny.
I know the automatic gets a different ratio setup in the Vette, but in the game I bought a C6 Corvette, kept it stock and changed the gear ratios to the Auto setup, with the 2.56 FDR, and the 4.02 first gear - and then I switched it back to the manual, 3.65 or something FDR, and 2.66 first gear.
The simulator calculated the same zero-60 and 1/4 mile numbers for both.
I feel you when you say that on the same tranny a steeper FDR will increase performance, but if it's NOT the same tranny, and it was matched up to the FDR - like I did in the game - does it matter?
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Actually in that example those two examples are very close and will likely end up with similar times.
The 2.56 FDR and the 4.02 1st Gear will give you an overall ratio of 10.29 (all you do is multiply them together)
The 3.65 FDR and the 2.66 1st gear will give you an overall ratio of 9.71.
Those are pretty close, and depending on the remaining gear ratios it isn't surprising to end up with the same or similar 1/4mile time.
Now if you took the automatic setup with the 4.02 1st Gear and gave it the 3.65 FDR from the manual...then your overall gearing in 1st would be 14.67 and you would have a lot more torque multiplication.
Which could also cause some traction problems, but aside from that the acceleration should be greater.
Basically you really have to look at the overall ratio, like I did in the examples. The higher the overall ratio, the higher the torque multiplication to the ground. You are right though, different trannys will make a big difference in how the FDR will affect it. So it isn't completely fair to compare just the FDRs.