07-27-2012, 02:20 PM
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#11 (permalink)
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A True Z Fanatic
Join Date: Apr 2011
Location: Indiana
Posts: 3,766
Drives: '15 NISMO 6MT
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Quote:
Originally Posted by edub370
double clutching really hasnt been needed since like the 40's. the advent of synchros eliminated that from common practice. theory being, double clutching matched gear speeds. but now u got synchros to do that for u
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Correct, the synchros do that. And in doing that, they wear out. Especially if you are trying to cram the car into 1st gear at 30 mph, or 2nd gear at 60 mph. The more they have to synchronize the speed due to different rotational speeds, the more they have to work, which is why it's difficult to push the shifter into 2nd at 60 mph, etc.
So you can either not shift into 2nd at 60/1st at 30, or you can double clutch and rev match to assist the synchros and avoid excessive wear, or you can wear out your synchros, it's up to you. 
Last edited by Davey; 07-27-2012 at 02:22 PM.
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