Originally Posted by Daekwan06 (Post 1585248955)

Wonder how much a car costs that has "6.3L V8 with 631HP at 7,400 RPM with an 8,000 RPM redline with 468.35 lbs-ft of torque with a 7 speed DCT".

Clearly is has a base price of $51,995 just like the C7?

Right?

Originally Posted by Trackaholic (Post 1585249062)

DCT's funtion very well, but are heavier and more complicated that some other options. They still have the limitations of an automated clutch at low speeds (need good programming to properly slip the clutch without bucking or being harsh).

A slushbox auto also has the ability to prestage shifts and if designed to, could shift very quickly (comparable to a DCT). It's just that most autos haven't been designed to do that.

I think GM could easily get by with a torque converter based auto as long as they design it for fast shifting and optimize the shift logic to prevent it from going straight to top gear and then sitting there. Jaguar's new 8-speed auto seems to compare favorably to Porsche's PDK, which is one of the best DCT's available (based on F-type reviews).

And those 1/4 mile times put up by the OP are very nice.

-T

Originally Posted by DCTandAWD? (Post 1585246377)

Why do so many people fail to educated themselves, deny facts, and hate progress so much?
A world class DCT costs $11k.
They are reliable.
They are faster than every transmission due to seamless power deliver and launch control.
A DCT would have cut 7 tenths off this time and would allow more control and lighting fast downshifts and upshifts for road racing.
The ENTIRE AUTO WORLD accepts these known facts above while a few uneducated members of CF deny reality while crying the world is flat and that we should stay with drum brakes and carbs.
Shaking my head.

Originally Posted by JerriVette (Post 1585252041)

Staying completely civil...DcT s are cool yet technology can be developed on torque converter automatics that seem to have risen to a level of the best DcT s at a lower weight and lower cost.

I want the performance and if gm and ZF can deliver with torque converter automatics I'm good.

I like DcT transmissions but not married to them.

I keep an open mind to the possibilities and performance of new torque converter automatics ...

11.6 @ 120 mph rocks!

Originally Posted by DCTandAWD? (Post 1585252993)

He, along with every educated car person on the planet........
The price point excuse is a joke when a GTR's complete DCT sells for $11k and GM is asking $8,000 to get a full leather interior.

Originally Posted by JustinStrife (Post 1585253110)

Can you guys take this to another thread. You have completely de-railed the original topic.

Originally Posted by Trackaholic (Post 1585253021)

According to Porsche's website, it's seems to be around 45 more than the 7 speed and 65 more than the 6 speed:
http://www.porsche.com/usa/models/91...turesandspecs/
http://www.porsche.com/usa/models/ca...turesandspecs/

Agreed that it isn't much additional weight for the straight line performance over a stick shift, but not sure what the performance might be over a theoretically excellent 8 speed slushbox like the one in the F-type. At that point maybe the performance differential is mimimal, and the complexity and weight drawbacks are therefore more pronounced.

I do believe that if GM had a DCT available at say $3000 more than the stick shift, they'd offer it. They just don't have one available, and therefore there are reasons (rationalizations) why. Maybe they will go down the path of an advanced torque converter based auto, in which case they will downplay the need for a DCT and highlight the negatives, or maybe they will go down the road of a DCT and when they have one will talk extensively about how great it is. Until that time, they will continue to explain why one isn't critical in this application.

I still prefer the stick shift, so as long as they keep offering one, I'll be happy.

-T

Originally Posted by JoesC5 (Post 1585249069)

No one is talking price except you. Right?

I was telling the person that I responded to that his contention that DCT's only were only good for under powered, high rev'ing tiny engines that need high RPM's to make torque was false.

Doesn't matter what the engine costs or the price of the car it's in. A DCT works well in the example I used with it's 6.3L V8 with 631HP at 7,400 RPM with an 8,000 RPM redline with 468.35 lbs-ft of torque.

Let's recap, Okay? Larger displacement then the C7. More horsepower than the C7. Higher RPM than the C7. Greater torque than the C7. And, surprise, surprise, it has a 7 speed DCT. I would say someone has their engineering well thought out. Right?

Originally Posted by JustinStrife (Post 1585253110)

Can you guys take this to another thread. You have completely de-railed the original topic.

Originally Posted by DCTandAWD? (Post 1585255722)

Good to see a stickshift C7 has just broken into the 11's as well. (Rodney at RPM?)

Originally Posted by Big Dan 427 (Post 1585240307)

Love to see it Craig! Would you consider black mirrors, spoiler or both on your car? It looks great as it is but some more black would tie it in nice IMO.

Originally Posted by LS1LT1 (Post 1585244315)

Wow Sean, I am VERY impressed. :thumbs:
I knew you would likely 'set the mark' for the bone stock cars but I had NO IDEA it would be that quick in that kind of DA with so few miles on it! :eek:
You're absolutely correct, the bone stock best for these cars will be even quicker than the 11.5s (or that lone 11.49999 :D) that I had been predicting for a while. Once people start getting some seat time and miles on them and the cooler air hits there will be some stellar ETs coming. :steering: Congrats. :cheers:

Originally Posted by DCTandAWD? (Post 1585255722)

Your WEAK argument of price was destroyed when the $11k price of the GTR's DCT was mentioned.
The persistent and loud demand from a LARGE percentage of EDUCATED Corvette owners demanding a DCT option will NOT go away until GM offers a DCT option.
GM is monitoring this forum, they are aware of the demands, and they need to take immediate action.

For the record, the DCT subject was brought up in this thread by DCT haters making sarcastic comments.
I'll drop the subject as requested, now that the validity and necessity of a DCT option has been proven, yet again, in this thread.



Good to see a stickshift C7 has just broken into the 11's as well. (Rodney at RPM?)