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View Full Version : Any tips for running at the track?



Boost21
10-04-2011, 09:23 PM
I have only been to the track once years ago with my old fox body and it was on street tires and I couldn't 60' at all so really doesent count. I now have a H/C/I M6 car that I would like to try to make some passes with. The car is on some 315/35/17 nitto 555r's and has 4.10 gears. Any tips on what rpms to launch and shift at? I know the 26" tall tires are probably be cutting it close to the rev limiter if I can get some good passes in. I know I probably wont be John force the first time out but I would like to eliminate as much human error as possible.

S8ER01Z
10-04-2011, 09:30 PM
www.rangeracceleration.com

It's what I've used to get what I call descent times. Mileage may vary though. :)

Boost21
10-04-2011, 09:40 PM
Lots of good info on there, thanks! The burnout is what I am most concerned with lol, I am such a noob. I never did one in my mustang since it had street tires and my Trans am was an automatic so that wasn't rocket science how to break the tires free.

S8ER01Z
10-04-2011, 09:49 PM
I normally just pull the clutch quick and stab the gas. Though with 245/50r16 all seasons I don't need the brakes to control it... They just spin.

Formula WS6
10-04-2011, 09:50 PM
for longevity of your diff, launch easy. 2500 to 3k rpm if you plan on driving it home. Other than that, have fun. the 4:10's should help you get off the line quite nicely.

Wrencher
10-04-2011, 09:52 PM
^^^ Yup what Paul said, the 4.10's are a concern with a 10 bolt, seen them break on the street.

Boost21
10-04-2011, 10:26 PM
Car has a strange s60 with 35 spline axles and 4.10's, no 10 bolt here. Also has a mcleod clutch.

Formula WS6
10-04-2011, 10:41 PM
then what are you waiting for.......lower the tire pressure to 17psi and launch that bitch. lol

Boost21
10-04-2011, 10:46 PM
then what are you waiting for.......lower the tire pressure to 17psi and launch that bitch. lol

lol thats what I like to hear. Any reccomended rpm's or to shift and launch at? I talked to someone with a similar setup and he said he shifts at 7k rpms. I am a noob to m6 ls1's so I really don't know what is safe. Cam specs are Duration int. 231 exh. 237 Lift int .589 exh.595 LSA 112

Formula WS6
10-04-2011, 11:14 PM
I wouldn't run it past 6500 untill you know if the bottom end is built or stock. If it was stock with arp rod/main bolts, I wouldn't feel comfortable past 6700. I usually launch at 4-4500 and close to 5k on spray to avoid turning my window switch off. Try it at several rpm ranges to get a feel for it. If the car is heavy you may want to try slipping the clutch out a bit to avoid it from bogging but the 4:10s will help with that.

Boost21
10-04-2011, 11:19 PM
Rotating assembly apparently isn't stock but I haven't been able to verify yet. Everything that I have been told has been spot on so far but so I would like to take the word for it but without seeing it myself it could be stock for all I know. Runs will be done n/a until I get comfortable running the car and get consistent times.