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Flybrian

Exactly how much power can a s/c 3800 II...

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I'd say probably somewhere around 300, even as much as 350, but probably not much more than that. The 4T65E transmission strapped to most 3.8s, even the s/c'ed ones are fairly beefy.

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Truthfully you make the most horsepower at high-er rpms, and since the transmission has to spin normally 3 times faster to transfer the power from the engine to the ground, when its spinning about 4 grand, the transmission is spinning about 12......so I'd say that the torque would be worst to the axles and differential portion of the transaxle, but the high-rpm would be more harmful to the transmission.

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Speaking from experiance, my transmission could only handle about 320ft lbs, and 280hp, then 3rd gear started slipping and I had it rebuilt with kevlar clutches. When it went bad, all I had done to my car was a reprogrammed computer, and a smaller pulley. The engine itself can handle alot more power.

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Not sure about the transmission but the engines can handle quite a bit, with out to many mods.

One of the places that offers mods (www.zzperformance.com) has turbos and intercoolers available.

One of the Grand Prix's I saw on there was making over 600 hp.

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