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Old 02-07-2008, 05:32 PM   #1
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C6 auto-tranny, How much can it handle?

Hello Folks,

I'm new to the forum, I just posted in the "meet and greet" section. Anyways, I have a 2006 C6 Automatic making 605 RWHP (well, it was until I blew up the motor, more on that in the meet and greet thread). At any rate, I'm planning on buying a forged short block (vendors feel free to make me an offer) the first part of March. I'm hoping to increase my Horsepower and add some more reliability.

My only concern is the transmission? I havent had any issus whats so ever with the tranny (knock on wood). However, I'm getting nervous, because I havent beefed it up and I'm not sure if it can handle any more power? Whats the most HP you guys have run through the C6 paddle shift automatic tranny, without beefing it up? Thanks in advance!
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Old 02-16-2008, 04:15 AM   #2
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3544S, I have a C6 auto as well and from what I've been told is anywhere after 600 rwhp, is getting risky. 600 rwhp is the cutoff point to be safe. I have asked this question to the race shop that did my work here in KC and LG as well and they said the same thing. You might want to call around to several places and see if they all say the same thing....but from my experience, 600 rwhp is the safe cutoff point. Hope that helps....lata
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Old 02-17-2008, 07:11 AM   #3
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Transmissions are rated in lbft.....in our case, the 6L80E is rated at 450 lbft of torque. I have heard of no further updates. Anyone else?????

(I would guess you could be making 800 h.p.....as long as you dont exceed the max torque........)
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