N/T tranny better for road racing?

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Have been looking at gear ratios on our trannys and the N/T has a much better ratio for road racing.
I have not read of any one going to this tranny and wonder why?
From what I have read they are supposed to be weaker, but it may be due to the ratios that they may be more prone to fail. Also a lot of guys have not had any problems with them,
This would be for a track only car. and could be either a N/A or turbo motor.
Looking for reasons why not to use it or if it would be a good idea.


Thanks for any input.

 

[drivemusicnow]

2gn/t engine is completely different than the turbo, which means the tranny wouldn't bolt up without a custom bellhousing.

Unless you're talking about the 2gnt convertible with the 4g64... but I'm not familiar with the 2g world so I'll hold off until someone else speaks up.

 

[WES_393]

Like mentioned, the 420a trans will not bolt into your TSi. The only option is the 4g64 transmission from a Spyder GS. It is geared lower to take advantage of the 4g64's low-mid range power. They aren't as strong as the turbo transmissions and the gearing is so low, in a car with any decent power, I think you would run out of gear way too fast. You would be shifting it like a 6-speed without the benefit of close ratio gears.

 

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I am thinking of the 63 NT motor, not the 420 nor the 64 tranny,

 

[RamenPride]

3 of the motor mounts on the 2G are on the tranny. To use any 1G tranny you need to fabricate new motor mounts. Not sure about anything else, though.