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Old 12-31-2011, 11:25 AM   #31
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Join Date: Dec 2007
Location: Birmngham, AL
Posts: 1,072
My Ride: 2004 ZHP Sedan
Originally Posted by flashtwosix View Post
I have a ZF tranny and this is the same as the 330 I think.

For my 172HP thread please see my intake manifold retrofit project below
I am curious what dyno that was on and if that is corrected power (SAE). I can't figure out how a car with factory 170hp at the crank with an AUTO trans (figure 20-30% loss through the drivetrain) is able to put 170hp to the wheels. A stock ZHP with a 6MT makes 235 at the crank and only gets 200ish to the wheels.

So you are going to go through a lot of pain and anguish to gain 30whp. It would be easier to pick up a used SC kit and bolt it on. I am all for retrofit projects, but this one makes little sense to me. But if you enjoy it, what the heck, go for it right?

One other thing to think about, the 330's come with larger axle splines, I doubt you'll have problems, but it is another potential weak point. And given that the ZF trans is more problematic and weak than it's GM counterpart, I'd strongly suggest a 5 speed swap.
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