JeaneGrae

iTrader: (7)

Are stock c6 a4's compared to stock c5 a'4s with similar gearing?

SlwSVT

C5's are rated at 350hp and the C6 at 400. I don't have an auto to be able to comment on. But with 50 more hp, it should walk away pretty steadily.

vff_jeff

iTrader: (10)

My stock c5 ran a 13.5 @ 105 with a 2.1 60ft... hope that helps.

Fastbird93

iTrader: (10)

Not a lot at all, stock for stock. Though C6's got rated at 50-55 more HP than the C5's, the C5's aren't burdened and held back by Torque Management in the tuning like the C6 is.

Tune the C6, and the difference becomes a lot more noticeable.

SlwSVT

Not a whole lot? The poster above claims he trapped 105 in his C5. That would be about 6-7mph slower in the quarter. That is substancial.

noobc6owner

the fastest stock LS2 C6 Auto has been 12.1's check corvette forums fo more info, but the usual is about 12.4-12.8 depnding on what trim

ls1290

iTrader: (20)

Ls3 c6 > ls2 c6 > ls1 c5

vff_jeff

iTrader: (10)

Last time I raced my 2004 c5, There were some others racing too, 2 c6's one was a z06. The Z06 ran a 12.4 @ 112 and the c6 ran 13.1 @ 108 I beat a CTSV that ran a 13.8 @ 104. Hope that helps