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C5 Trans, diff, axles? - When to start upgrading parts?

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Old Sep 7, 2019 | 06:46 PM
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Default C5 Trans, diff, axles? - When to start upgrading parts?

Looking for opinions here for my 2003 C5 6 Speed Manual Corvette.

I have about 525 RWHP from a V3 Si Vortech supercharger. (engine is bone stock except for LS6 Springs).

I mainly drive street but like to go the the dragstrip 2-3 times a year for fun. I never dump the clutch higher than about 2k rpms as I do not really care about the 60' time, I am more interested in the MPH.

I have street tires (no slicks or ET streets) and avoid wheel-hop / drive-train shake as best I can. If i ever experience it on a launch ---- I let off immediately.

So far, I haven't broken anything - probably made about 25 passes and am running 11.75 at 125 MPH. 60' times are slow- 2.0 to 2.1 - so clearly not a lot of stress there.

Question, given all the info above, does anyone think I need to upgrade any part of my C5 M6 drivetrain?

I would rather prevent breakage by adding parts now - rather than fix more things when something breaks.

Longer term goals for this car would be to get a mild cam and a little more boost to get to a trap speed of 130 MPH while and not using drag slicks.

Your opinions would be appreciated!!

Thanks in advance.

Ken

Last edited by Toys4Life C5; Sep 7, 2019 at 06:47 PM.
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Old Sep 7, 2019 | 07:32 PM
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I would definitely get a diff mount and motor mounts and that will keep your drivetrain solid, a trans brace if you want to take it a bit further... it's really hard to say though, I drove mine around with 7-800rw for a couple of years on stock trans and diff with drag radials and never had a problem and the parts were still good when they were removed to go with c6z stuff... most of my racing was from a roll with a couple from a dig but I never left that hard either... and then there's guys that have broken them at near stock power level and not driving them hard... so it's a roll of the dice or go ahead and build it all up in my opinion
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