First Track Time in Z06

[GMRACIN]

I went to the track yesterday with some friends and decided to make a few passes in the car. The car is stock except for Ziptie mod. The track was not in great shape to say the least. With a 2.02 60ft. I ran 8.17@90.74mph. How is this compared to some of the other cars that are stock?

[Ranger]

Originally posted by GMRACIN
...With a 2.02 60ft. I ran 8.17@90.74mph. How is this compared to some of the other cars that are stock?

That is a respectable time for an 02 at the eighth. FYI, believe the 8.17 at the 660 would equate to about 12.45, assuming a good shift to 4th near redline.

Also very low 2.0Xs on stock tires at an average track is pretty good. It takes some practice to drop the 60' into the 1.9X and below and, of course, better track-prep makes shaving the time easier.

In short, you are off to a good start with your Z06.

Ranger

[mwkyzer]

See my sig for 60' and 1/4 mile times. My best eighth mile so far is 8.677. I'm a bad driver (smile) and the car is fairly stock (Blackwing). Looks like you did a pretty good job!

[GMRACIN]

Thanks for the compliments guys. I feel I can get some better ET's out of the car when the track is prepped better and I get some more seat time in the car.

Ranger, I notice you have an awesome 60ft. in your car with street tires. Do you ever heat up the clutch doing these kind of launches. I let my right foot do most of the work yesterday(trying to be easy on the clutch)

[Ranger]

Originally posted by GMRACIN
Ranger, I notice you have an awesome 60ft. in your car with street tires. Do you ever heat up the clutch doing these kind of launches....

GMRACIN: My clutch is fully engaged over the first 2 to 10 feet of movement, depending on conditions. That is a very fast engagement, but not a pop or sidestep. I go WOT ONLY once the tires are hooked, and do so by squeezing the pedal progressively to the floor.

So, I use only a small amount of clutch slip. On stock tires at the tracks I run on, my launch rpm is 2600-3200.

According to a quote attributed to the Corvette Program Office in 2001, "...an optimum launch rpm ... is a function of ambient temperature, sun load, track surface, tire temperature, vehicle loading .... An optimum launch will allow enough wheel spin so that when the tires "hook up" to the pavement there is not a loss in vehicle acceleration."

Ranger

[02 Z06 Racer]

GMRACIN, Below is a link to my times. My car is 100% stock and is raced the way I drive it to the track. I did use BFG DR's 1 time and I do have a uncovered K&N starting in late 2002. Hope this helps.


http://www.geocities.com/z06_racer/1320.htm

[GMRACIN]

Thanks for the help guys. I tried to leave at around 23-2500 and could not get any traction(Track was not working to well) Do you guys heat the tires much? Also, What kind of air pressure do you run?

[02 Z06 Racer]

I only heat the tires enough to get a small amount of smoke and I leave the presure at 30.