NVNO1

Anyone have a real world experience?? I'm curious which car would be faster from say 50-150 a bone stock C6Z06 or a C5Z06 making 450 at the tire. drivers equal. Maybe to close to call?

1BADLS3

C6z06

Dave02C5

C5 Z @ 450 rwhp will smoke a stock C6 Z.. stock C6 Z is ~430 at the wheel and heavier..

Paul 75 L82

I agree

mkiv808

This.

momo20

the c5z would win but not by much, the c6z will get it top end due to gearing imo

PeteZ06

One car smoking another car is just a silly statement since you dont even have any proof or data backing up your claim.


C5 is slightly lighter
C6 is geared better to put down the power and the 427 will most likely provide more torque.


I say it would be a very close race and most likely dependent on driver and tires.


Watch video... In the comments it states the C5Z is at 422rwhp.... I dont see 25hp making much of a difference.



I have the best of both worlds

envyz06

I think the c6 would win by a car or two.

Last C5

Real world experience??? Hundreds of laps in my 450 rwhp C5Z running with my buddy's stock C6Z. Similar driving styles and experience and both cars have modified suspensions and Stoptechs. Result - almost a dead heat on a merry go round. The C6 will pull you a bit on corner exit and the C5 will catch up by the end of the straight.
On a tight track the C6's torque has an advantage.

MX621

sorry but stock c6z>450whp c5z , over 100 mph bye bye c5z

F&Yb0dluvr

430 is really on the low side most put out around 450 stock both a 450hp c5 z with 3.42's and a stock C6 z should hit low 11's and around 125 in the 1/4 4.10's and Drag Radials on the C5z and my money's on that.

C5Dobie

450whp C5Z is going to be pretty much dead even or slightly edging out w/ a C6Z I would guess if it were "stock" (that vid showed a 422whp C5Z vs. a intake/tuned/exhaust C6Z which aint stock a tune/intake should net another 30whp)

That is until the C6Z drops a valve and blows the motor and the C5Z keeps chugging by.....lol!

F&Yb0dluvr

Yup I was going to say not exactly an apples to apples comparison...if you're talking about faster in the 1/4 a C5 Z with slicks, 4.10's tune and some bolt ons will beat most c6 Z's in the 1/4 it won't mph as high but it can get there quicker.

BillY2KFRC

I have real world experience from when my C5Z was heads/cam/intake making around 470rwhp. I ran a C6Z with just an airbox and tune making 470rwhp, he beat me by a good 2 car lengths every time. He would just steadily pull me, I'd say 2 cars from 60-130mph. We were equal drivers, both with 100s of passes down the 1/4 mile and would run with hundredths of one-another when we had identical C5 FRCs. The 7.0L torque and flat power curve just cannot be beat when peak numbers are equal. This is the same reason why my 470rwhp heads/cam NA car would pull on supercharged "500+rwhp" cars.

It wasn't long after losing that race that I purchased an LS7 for my C5Z.

tlove32

This pic is me at 456rwhp against a stock C6Z. I beat him by a car length and out-trapped him (me 123mph - him 122mph)

JChastain

I ran my buddies stock(might be tuned unsure) c6z Sunday. My c5z is cammed, cai, lt's, tuned. It makes 430 ish. I desperately need a clutch. You will see in the video, I spun on the hit at 50mph in 2nd. By the top of 3rd, my clutch pedal was on the floor and I couldn't lift it to shift into 4th. His car is slightly stronger as you can see. He slightly pulls on me in 3rd.

1BADLS3

Peak HP means nothing.

Compare the Tq curves and see which one puts down the power best throughout the entire RPM range.

C6Z06 wins...easily.

PeteZ06

Except it does NOT say tuned.. and we all know aftermarket catback exhausts add ZERO hp.

F&Yb0dluvr

Easily huh...look at the bone stock C6Z06 fast list and the C5 Z06 External/Internal Bolt On stock cube N/A and compare times...dead heat.

PeteZ06

If I'm watching the same video then he was pulling away from you at a decent pace.. and I guarantee you that even if you did shift into 4th, that pace would pick up greatly because he gets to still stay in 3rd gear with the extended gear!!