vetter61

Anyone know if the new twin clutch auto will make it into the 2015

BWF07

I doubt it as there have not been any talk on it. Besides this should be in the C7 section.

Grimlock13

There was an SAE "leaked" paper that says 8 speed auto.

travisnd

It's a new 8 speed called the 8L90E... still torque converter based. However, converter based autos have come a long way in the last few years. The latest stuff out there shifts as fast as the average DCT. My guess is the 8L90E will offer blistering performance in manual/race modes and change the way most think about an "automatic" transmission.

PRE-Z06

http://gmauthority.com/blog/2013/12/...omatic-leaked/

smurfkiller

a dct (dual clutch trans) is not a auto. just as the paddles in a c6 auto dont make it a dct. dct is a manual trans which uses the computer, servos and solenoids to controll the clutch and shifting.

Shaka

If it shifts gears without driver intervention, it is an automatic no matter what is inside the gearbox or how the engine is coupled to the gearbox..

Shaka

Search for the DCT thread. It will never find it's way into a Corvette.

Fretka

I think there might be some confusion in terminology on this forum. A sequential manual trans uses paddles to shift but you cannot skip gears ie: 1-3. It uses a motorcycle transmission and needs no clutch but upshifts to top and back down again in something like .20 second! It is a manual transmission with no clutch. F-1 and BMW Ferrari etc use this method and most are built by XTRAC.
As to a DCT I think Honda started this tech but I don't know much about it.
The current shift-matching paddle is a component of this type of tranny and I have used this transmission for about 3 years now and it is far and away the best shifting method available for hard fast and precise driving. I would be the first to say it does not replace a standard auto transmission. It does not use any fluid coupling and is direct drive with the ability to easily change internal ratios.

Stars_Fan

Clearly. So much wrong with your entire post.

Fretka

What do you think is wrong?

Shaka

Everything.

Fretka

Nothing............look it up!

PRE-Z06

I prefer to call it a an automated sequential manual gearbox and believe the corvette will eventually get one, but it may not be until the C8. Price and power being the current obstacle, ie the 2012+ Ford Focus utilizes one.

Shaka

A sequential and a DCT are very different xmissions. Neither one will be utililzed in a Vette. See DCT thread.

PRE-Z06

Yes, they're different internally and the latter is a better/newer design, but essentially both do the same thing. Because of the need for AFM to satisfy the EPA, I can see how the necessary dual mass flywheel for NVH may not be able to be used for the price point and packaging. If they went to a smaller engine not requiring it, then maybe it won't be necessary and possible though...there was talk of a 5.3 coupe version, but haven't heard any more.
Is this the thread you are referring to?
http://forums.corvetteforum.com/c7-z...smissions.html

Shaka

Better newer design?

http://forums.corvetteforum.com/c7-t...n-a-vette.html

PRE-Z06

Better/newer in the sense the dual clutch trans can shift faster and smoother by pre-selecting the next gear over a SMG style trans. Forgive me if my lingo isn't politically correct on all the different models, it's more than the difference in limited slip and posi traction rearends though I realize. I was comparing an early Lambo/Ferrari/BMW M3 SMG to later Porsche PDK, Audi DSG or newer Egear transmissions.

Missed that one, curious of your exact field of mechanical engineering?

Shaka

List the fields.

PRE-Z06

Is that an answer to what you do? Mechanical engineering is very broad...