GM's new 10 speed. Guarantee's a fun ride.

[supton]

Originally Posted By: JHZR2

I assume that rev matching is not double clutching... I was hoping for a 10 speed manual, honestly, like a dual range diff with a really sporty setup and a really economical one. With dual ODs in a 5-speed (My saab had that and I really liked it), the ratio variations could make for some really good options. Alas, in the world of 7 and 8 speed ATs, a 10 is interesting but not really exciting to me...

I thought there was a massive issue with EPA mpg measurements, where the OEM couldn't downshift out of top gear during the test? I've wondered why they couldn't affix top gear onto the side of the trans, where it could be easily swapped. My VW had that, and some guys would swap 5th to a taller OD. Anyhow... I too have wondered about adding a high/low range, sorta like in 4x4 trucks. My guess is the ~5% loss every time you go through a gear set is an issue. Actually I read once that close gear ratio planetaries lose quite a bit, not sure what close is though.

 

[supton]

Originally Posted By: Virtus_Probi

Originally Posted By: JHZR2

I assume that rev matching is not double clutching... I was hoping for a 10 speed manual, honestly, like a dual range diff with a really sporty setup and a really economical one. With dual ODs in a 5-speed (My saab had that and I really liked it), the ratio variations could make for some really good options. Alas, in the world of 7 and 8 speed ATs, a 10 is interesting but not really exciting to me...

The 9 speed used in the Cherokee is supposed to be one of the more troublesome ones in the industry now. I felt 99% sure I was going to buy a V6 Cherokee until I actually test drove one. I told the salesman that it was lacking in pep, and he laughed at me and said it had to have more than the four banger in my RAV4. Told him that I had 270HP in that thing and the Jeep just did not measure up, and his jaw dropped open and he didn't know what to say.

Not much of a salesman if he didn't know about V6 RAV4's.

 

[JHZR2]

Originally Posted By: A_Harman

It surprises me that GM is putting the 10-speed in the ZL1 as the first production application. Seems like the Corvette always gets the new goodies first. Or they would get a bigger boost in CAFE if they put the 10-speed in trucks. All in good time, I suppose.

maybe this is the best way to get beta testers to point fingers at... Or if a massive success, then to use as a basis to chest thump...

 

[KrisZ]

Originally Posted By: supton

Not much of a salesman if he didn't know about V6 RAV4's.

I would not deal with any salesman that would resort to ridiculing a potential customer's ride, no matter how knowledgeable otherwise he might have been.

 

[dblshock]

every nameplate, style and new generation to date made this claim..'with the lightweight, stiffer structure' ..difficult to measure or disclaim, no one ever argues..after all these years of claims I'm surprised they flex at all.

 

[andyd]

The '67 is the prettiest of all. The last couple gens lack a decent green house OTOH, Thats not a big issue with a 1/4 miler

 

[demarpaint]

Originally Posted By: JHZR2

Originally Posted By: A_Harman

It surprises me that GM is putting the 10-speed in the ZL1 as the first production application. Seems like the Corvette always gets the new goodies first. Or they would get a bigger boost in CAFE if they put the 10-speed in trucks. All in good time, I suppose.

maybe this is the best way to get beta testers to point fingers at... Or if a massive success, then to use as a basis to chest thump...

I'd wait for the beta testers to report back. While it sounds great I'd want to hear some real world reports. The 9 speed rental I had left me with a bad taste.

 

[sciphi]

If it can put up with folks tracking it hard, then it can put up with Joe Boatowner hauling their boat every summer weekend. Or the plow guys in the winter. Or the one guy who does both with their truck. Having more speeds along with good programming means the transmission can be programmed to practically "read minds" with the about ideal gear for 99% of the driving conditions the car will encounter. ZF is practically that good with programming their 8-speed, so it can be done.

 

[dailydriver]

Hopefully, this leaves the possibility of an NA, lighter yet, stripped down even more than the 1LE, Z28 version. Is there ANY room in the LT1 block for displacement increases?? (But I still HATE the idea of AFM/DOD in a real 'track car'. )

 

[69GTX]

I have 6 speeds in my T56 and don't use them all. What would I do with 7 or 9?

 

[turtlevette]

Originally Posted By: OVERKILL

Fantastic performance, it is unfortunate that it still looks hideous

I'm a Chevy guy but went with the mustang because the camaro looked too modern. I sat in one of these at the Boston auto show and it felt claustrophobic. There's just not enough glass. I do prefer a big pushrod v8 over just about any ohc engine. Hopefully the newer autos bang shifts hard. The slow flare shifts for smoothness is cowardly.

 

[A_Harman]

Originally Posted By: dailydriver

Hopefully, this leaves the possibility of an NA, lighter yet, stripped down even more than the 1LE, Z28 version. Is there ANY room in the LT1 block for displacement increases??

Yes.

 

[Nate1979]

Speaking from the GM truck side their 6 speed is fine. Strange shifting sometime but overall reliable. The new 8 speeds in the new trucks are having lots of problems. Now we see the 10 speed in the cars which will probably come to the trucks soon. GM needs to slow down a little and perfect what they have.

 

[Smokescreen]

It should be fast indeed. 10 speeds tho...might as well use a CVT. What does that give you a 500 RPM sweep per gear change? Has anyone heard what this would sound like for a muscle car? I like the longer wind up of revs...10 speeds would be so short it would sound like the same gear note the whole time?

 

[demarpaint]

Originally Posted By: Smokescreen

It should be fast indeed. 10 speeds tho...might as well use a CVT. What does that give you a 500 RPM sweep per gear change? Has anyone heard what this would sound like for a muscle car? I like the longer wind up of revs...10 speeds would be so short it would sound like the same gear note the whole time?

In a 1/4 mile run I'd be willing to bet a 2 speed Power Glide will beat an 8 or 10 speed ZF in two of the same cars with the same engine. The only difference being the transmission.

 

[A_Harman]

Originally Posted By: demarpaint

Originally Posted By: Smokescreen

It should be fast indeed. 10 speeds tho...might as well use a CVT. What does that give you a 500 RPM sweep per gear change? Has anyone heard what this would sound like for a muscle car? I like the longer wind up of revs...10 speeds would be so short it would sound like the same gear note the whole time?

In a 1/4 mile run I'd be willing to bet a 2 speed Power Glide will beat an 8 or 10 speed ZF in two of the same cars with the same engine. The only difference being the transmission.

I'd take that bet.

 

[SteveSRT8]

Originally Posted By: sciphi

ZF is practically that good with programming their 8-speed, so it can be done.

Varies by platform. The new BMW's with the 4 cylinder turbo motors have tremendously responsive programming, so does my wife's RAM. The shifts are super quick, yet butter smooth every time. Yet members here have complained about the same unit in other cars...

 

[demarpaint]

Originally Posted By: A_Harman

Originally Posted By: demarpaint

Originally Posted By: Smokescreen

It should be fast indeed. 10 speeds tho...might as well use a CVT. What does that give you a 500 RPM sweep per gear change? Has anyone heard what this would sound like for a muscle car? I like the longer wind up of revs...10 speeds would be so short it would sound like the same gear note the whole time?

In a 1/4 mile run I'd be willing to bet a 2 speed Power Glide will beat an 8 or 10 speed ZF in two of the same cars with the same engine. The only difference being the transmission.

I'd take that bet.

Smart man!

 

[Jarlaxle]

I'd take the bet...as long as I could spec out the Powerglide appropriately.

 

[demarpaint]

Originally Posted By: Jarlaxle

I'd take the bet...as long as I could spec out the Powerglide appropriately.

We're talking muscle cars here! So spec it as you see fit!