Syncros and Engine speed syncronization
So we all know that the C7 will have a 7 speed manual and will also have a computer feature to change the engine speed to so there will be a smooth shift. I am waiting on the road tests for this and I am sure it will be good. Smooth upshifts and downshifts I am sure. Cool.
But, think about it. The C7 will require an extra row of gears. How is GM getting the room for them: 1 - bigger transmission case, or 2 - smaller (and possibly weaker gears). or 3 - smaller synchro rings. I wonder if this auto speed was a necessity to prevent premature wear-out of new and smaller synchro rings? |
Originally Posted by rmarks
(Post 1584448430)
So we all know that the C7 will have a 7 speed manual and will also have a computer feature to change the engine speed to so there will be a smooth shift. I am waiting on the road tests for this and I am sure it will be good. Smooth upshifts and downshifts I am sure. Cool. But, think about it. The C7 will require an extra row of gears. How is GM getting the room for them:
1 - bigger transmission case, or 2 - smaller (and possibly weaker gears). or 3 - smaller synchro rings. I wonder if this auto speed was a necessity to prevent premature wear-out of new and smaller synchro rings? Maybe we all ought to find out reality first, not worry prematurely about a problem that doesn't yet, and might not ever exist. |
Article about the Tremec TR6070 transmission.
http://www.gmhightechperformance.com..._transmission/ Looks like it's about 40mm longer. So, I think option #1 was the route they chose, and weaker components was not. -T |
Originally Posted by Trackaholic
(Post 1584450339)
Article about the Tremec TR6070 transmission.
http://www.gmhightechperformance.com..._transmission/ Looks like it's about 40mm longer. So, I think option #1 was the route they chose, and weaker components was not. -T |
Seems like the Corvette team learned from the '05 launch and the Z06/ZR1 developments.
Between the twin disc, strengthened diff, halfshafts and built up trans, looks like the car is ready for some hard driving out of the box. |
Originally Posted by rmarks
(Post 1584448430)
So we all know that the C7 will have a 7 speed manual and will also have a computer feature to change the engine speed to so there will be a smooth shift. I am waiting on the road tests for this and I am sure it will be good. Smooth upshifts and downshifts I am sure. Cool.
But, think about it. The C7 will require an extra row of gears. How is GM getting the room for them: 1 - bigger transmission case, or 2 - smaller (and possibly weaker gears). or 3 - smaller synchro rings. I wonder if this auto speed was a necessity to prevent premature wear-out of new and smaller synchro rings? Let's keep in mind here that rev match will have very little to do with synchro wear and will not really smooth the actual shifting of the transmission as we are not double clutching.:thumbs::thumbs: |
The Nissan 370Z has had that rev matching feature on manual transmissions since 2009. I've experienced it on that car, and IMO it's gimmicky and pointless. Maybe there are some people who use it every day, but it kind of defeats the purpose of a manual transmission.
You have a manual specifically so that you don't have a computer doing stuff like that for you. |
Originally Posted by arghx7
(Post 1584453088)
The Nissan 370Z has had that rev matching feature on manual transmissions since 2009. I've experienced it on that car, and IMO it's gimmicky and pointless. Maybe there are some people who use it every day, but it kind of defeats the purpose of a manual transmission.
You have a manual specifically so that you don't have a computer doing stuff like that for you. |
Originally Posted by arghx7
(Post 1584453088)
The Nissan 370Z has had that rev matching feature on manual transmissions since 2009. I've experienced it on that car, and IMO it's gimmicky and pointless. Maybe there are some people who use it every day, but it kind of defeats the purpose of a manual transmission.
You have a manual specifically so that you don't have a computer doing stuff like that for you. There will be very little benefit in street driving. If it is implemented properly it could be very beneficial to those that can't or don't care to heel and toe at the track. I can hardly wait to try it out. Then add on the elec. diff. and it should be the cat's rear.:thumbs::thumbs::thumbs: |
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