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DCT Question

Old Feb 2, 2023 | 09:24 PM
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Anyone know how well the auto C8 DCT can handle 750+ hp and about the same # in tq?

anything need to be shored up?
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Old Feb 3, 2023 | 02:38 AM
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You will need a clutch upgrade and wouldn’t hurt to get the line pressure module as well. Axels would also be recommended for that WHP. I can’t remember the number they start to build the motor at because I won’t get near it on this platform. A quick call to any of the known builders can get you going g in the right direction.
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Old Mar 13, 2023 | 08:48 PM
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Originally Posted by TSLAVette
Anyone know how well the auto C8 DCT can handle 750+ hp and about the same # in tq?

anything need to be shored up?
I've been told by builders that 740/750 HP and up should have the bottom end of the engine built, and while you're at it, valve train, etc., etc.....
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Old Mar 22, 2023 | 11:12 AM
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Originally Posted by TSLAVette
Anyone know how well the auto C8 DCT can handle 750+ hp and about the same # in tq?

anything need to be shored up?
The trans itself internally is very very strong. (even though its "rated" at 590ftlbs)

First issue: WHEEL HOP

When you do that, the first thing to go is the axles (ask me how I know)
Then once you upgrade the axles, if you accidentally wheel hop it hardcore again, ...well then the inner "cup" is the next to break

However, if you don't wheel-hop them, they both seem to live forever.
Moral of the story... DO NOT WHEEL-HOP THEM! (which nobody should, considering how much the motor moves when that happens, yikes)

Second issue: THE CLUTCH

The clutch will hold at least 700 crank HP stock possibly more, if the ECU is either tuned (assuming you are FI) or you are adding the pressure box. (Ideally you do both, tune + pressure box)

Aftermarket clutches help after that number, as long as they are within spec for the stock TCU to still "learn" the new clutch. (if they don't learn, they are kind of a mess)



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