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goingnowherefast
goingnowherefast GRM+ Memberand Reader
8/15/19 5:06 p.m.
dclafleur said:
goingnowherefast said:
 

One big part is that the GT500 will have a dual clutch transmission. There's a 50-100+ lbs weight differential from a manual to a DCT right there. 

Woof, that sounds like a lot. Last time I was slinging a T56 around I want to say it was at 150lbs, are the DCT coming in over 200 lbs? I'm going to have to hit the gym if I'm going to keep working on my own cars.

Yep so the dry weight of a T56 is ~115 lbs. Most fullsize VAG and BMW DCT's weigh in at around 200 lbs. The big/more powerful the application, the bigger the weight differential. For instance: (because it's another high power application) the M4 DCT weighs 88 lbs greater than the 6MT in the M4. 

Appleseed
Appleseed MegaDork
8/15/19 5:07 p.m.

That's exactly the same weight as my 95 9C1. Exactly.

slefain
slefain PowerDork
8/16/19 8:33 a.m.
Appleseed said:

That's exactly the same weight as my 95 9C1. Exactly.

And a hundred pounds more than my '69 Olds Delta 88 convertible, but not as pimp-tastic.

STM317
STM317 UltraDork
8/16/19 9:03 a.m.
z31maniac said:

No cross-plane crank in the GT500 engine from what I understand.

Maybe you read no flat plane crank?

C&D got a decent run down of the engine differences from a Ford Performance chief engineer:

"What makes the Voodoo unique (and beloved) is its flat-plane crankshaft. Flat-plane V8s have a different firing order than traditional cross-planes, giving them a unique sound, and they generally tend to rev higher, since the crankshaft itself is lighter. The Voodoo spins up to 8250 rpm and sounds downright evil.

The GT500 engine gets a more-traditional cross-plane crankshaft. “You don't really need it,” Widmann said. “Because you’ve got such a short runner off the supercharger. . . you don’t get a benefit going to a flat plane.”

z31maniac
z31maniac MegaDork
8/16/19 10:25 a.m.
STM317 said:
z31maniac said:

No cross-plane crank in the GT500 engine from what I understand.

Maybe you read no flat plane crank?

C&D got a decent run down of the engine differences from a Ford Performance chief engineer:

"What makes the Voodoo unique (and beloved) is its flat-plane crankshaft. Flat-plane V8s have a different firing order than traditional cross-planes, giving them a unique sound, and they generally tend to rev higher, since the crankshaft itself is lighter. The Voodoo spins up to 8250 rpm and sounds downright evil.

The GT500 engine gets a more-traditional cross-plane crankshaft. “You don't really need it,” Widmann said. “Because you’ve got such a short runner off the supercharger. . . you don’t get a benefit going to a flat plane.”

Correct. My bad. smiley

dclafleur
dclafleur Reader
8/16/19 2:54 p.m.
goingnowherefast said:
dclafleur said:
goingnowherefast said:
 

One big part is that the GT500 will have a dual clutch transmission. There's a 50-100+ lbs weight differential from a manual to a DCT right there. 

Woof, that sounds like a lot. Last time I was slinging a T56 around I want to say it was at 150lbs, are the DCT coming in over 200 lbs? I'm going to have to hit the gym if I'm going to keep working on my own cars.

Yep so the dry weight of a T56 is ~115 lbs. Most fullsize VAG and BMW DCT's weigh in at around 200 lbs. The big/more powerful the application, the bigger the weight differential. For instance: (because it's another high power application) the M4 DCT weighs 88 lbs greater than the 6MT in the M4. 

I guess it shouldn't surprise me that much it just sounds heavy, fortunately they sit low in a car.

racerfink
racerfink UltraDork
8/16/19 7:53 p.m.

You sure that’s not the Sherman GT500?

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