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Subject Leader gears 4.10 on MT TT. Benefit or mistake?
     
Posted by Gunter_Prien on August 04, 2005 at 12:38 PM
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I did some gear comparison to both MT and AT with 4.10 gears and I found stock MT TT to be very close to AT TT with upgraded 4.10 gears. So what’s all the hype on MT TT being so great with 4.10 gears?

Stock manual transmission gear ratios:

1- 3.214
2- 1.925
3- 1.302
4- 1.000
5- 0.752
Stock rear 3.692

Stock automatic transmission gear ratios:

1- 2.785
2- 1.545
3- 1.000
4- 0.694
Stock rear 3.692

Now I added the transmission gear ratio with final stock gear ratio 3.692
(direct subtract 1K)
MT TT
1-6.906
2-5.617
3-4.994
4-4.692
5-4.444

AT TT
1-6.477
2-5.237
3-4.692
4-4.386

Now I added stock AT transmission gears with 4.10 rear “upgrade” gear
(direct subtract 1K)

1-6.885 (still taller gear than stock TT MT)
2-5.645 (smaller gear for only 0.028 of a ratio)
3-5.100 (smaller gear for only 0.106 of a ratio)
4-4.794 (smaller gear for only 0.102 of a ratio)
MT has one more extra gear muahahahaha

Seems like stock manual transmission TT car with stock differential has almost the same ratio as TT automatic car with leader 4.10 gears. Putting 4.10 gears on manual TT would result in very low gears. Stock NA rear end has a 4.083 of a ratio, that’s only 0.017 of a ratio different than famous 4.10, practically nothing. I have a friend who has a TT with NA rear end and he always complains how he runs out of gear too quickly and hits rev limiter easily but it made his car more alive. MT would probably benefit from gears like 3.80 or 3.90 but 4.10 seem too short.


Leader gears 4.10 on MT TT. Benefit or mistake?

     
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