02WSsicks

iTrader: (6)

It seems that the C6 falls short on the 1/4 times that the 02-04 Zo6's have produced? Anyone have some stock C6/C6 Z51 results?

Ubergeist

iTrader: (6)

The 02-04 Zo6 will always yield a lil better et/trap given equal drivers.

Good drivers in a C5 Zo6 = 11.9-12.2@116-118

Good drivers in a C6/Z51 = 12.3-12.6@112-114

AOC

I've seen 4 different C6s make passes. All auto C6 were only running low 13 seconds @ ~109 - 111 and one M6 C6 ran best of 12.9@112.

My best bone stock Z06 ran 12.3@116 (2,800 DA).

99formy

Yeah almost every C6 i see at the track is in the 13's or 14's i have never seen one in the 12's at my track yet, other then a new C6 Z06 i saw run a 11.6.

02WSsicks

iTrader: (6)

interesting..... I wonder why they don't do better? drivers,weight??

Ranger

The big reason is the presence of Torque Management (TM) in the ECM (PCM) that cut power on launch and strong shifts to protect the drive-train. Depending on the driver technique, TM exacts a .20-.40 toll in ET.

Ranger

c6_dave

I ran 12.7@111.9. 4000 DA

The only time I got a 13, is when I paddle shifted, bounced off the limiter and forgot to take my Traction control off! (doh!)

I'm also 1 and 1 against c5 z06's on the street

Ranger

When I'm trying to analyze the behavior of my car, I load passes from my msExcel drag log into the viewing template shown in the thumbnail. By studying what the car does between the slip splits, e.g. the incremental times, you really see acceleration differences between passes and, in this example, between two cars.

I'm showing the best passes of 06C6FVR in his C6-Z51-M12 and J-Rod in his 2002 Z06.
(1) Same track, very similar conditions
(2) Both drivers are at the top of the fast times list for their particular cars, taking the driver out of the equation and allowing us to focus on the behavior differences of the two cars.

The difference is .45 seconds, with 2/3 of the that occuring in the first 660'. The difference in the 660-1000 and 1000-1320 is small.

For my own experience with in a C6Z, TM exacts a toll on the shifts and it also exacts a toll on launch.

The launch toll has more variability because technique can finesse away some of the toll. Consider the variation in
(1) launch rpm
(2) speed of clutch release (e.g. amount of slip)
(3) speed of throttle application/squeeze
(4) amount of wheel spin, if any.

But strong shifts (especially near the limiter) on a well-prepped track have less variability in their effect on TM, because the engine is producing close to max torque when the clutch is released on shift-completion. The main variable will be whether the wheels spin on the shift and if so, by how much.

Hope that's clear.

I have found ways to evade most of TM on launch, but it is awaiting like the boogey man on the shifts to 2d and 3d. I can't feel it on the 3-4 at 123-125 mph, but I suspect it's there, because I usually powershift that one.

Ranger

c6_dave

looks like Torque Managemnt to me... lose .30 seconds in the first 660 and that affects the rest of the race. sounds like neck and neck after the 660'

c6_dave

jrod should run me.. we both have the same HP. where is jrod from?

too bad I'm getting headers this weekend and I don't have A FREEEEEAKING ROOOOOF!!!!! (sorry, I'm bitter)

Ranger

J-Rod runs at HRP. PM him on this site. You might entice him with an offer of making a couple passes in your car.

Is your tuning stock?

Sorry about the roof. Common issue.

Ranger

c6_dave

I don't want him to drive my car, I just want to race him! I guess he could drive mine if I can drive his.

Car has a pretty safe tune from MTI, I'm still running a little more rich than what would be optimum... but this is houston, hot and humid.

Headers are sitting in my garage now. so I should be sitting at around 380 rwhp after I put those on. then I'll need to get another dyno tune in a few weeks.

as soon as I get a roof, i'll be back out at hrp. wonder if I could fab up some cardboard, paint it blue and pass tech?