koolhatch

I'm going to the track this week and I want to find out with you guys what your best launches are and how you do it... what RPM before you shift to 2nd, 3rd, 4th and 5th. What is the best way to get the best quartermile time? I have a GSR. thanks again.

Spoon Guy

In F1 it's 3/4 throttle and let the clutch go when the lights go off Then again... this isn't F1 but it's an interesting tidbit.

samagon

I put the tach at about 3000-3500 and feather out the clutch.

of course the only time I have gotten to race on the QM I had the stock tires and was launching at 2000 so I can't tell you if that is the best method or not, as I haven't used it on a track yet.

GSRwBOOST

I was always told to hold it at 3k, let the clutch out to where it starts to grab.. light drops, let go of the clutch... when the wheel stops spinning, push the gas to the floor and shift at redline... 8k...


good luck

H23 Power

i feather the clutch at around 5500 rpms....and don't let them drop below 5k

BoM

good burnout and feather the clutch at 4500
u want 2.2 60's or better
and you gotta shift really good

i was able to get 15.0 @ 88 mph 2.3 60'
thats quik shifting i think

H23 Power

15.0 @ 88 mph....sounds like you had very low pressure in your tires eh?

SkyeC

I rev to 4500 or 5000rpm and slip the clutch until I'm happy with my progress. That's the only way to describe it. You 'feel' how your car is and you'll learn after some practice when is best to take your foot off the clutch, when to let off the gas to stop wheelspin, when to get back on it, etc etc.

2.0 60s on street tires, 14.01@98.97.

Lates.

B00ST2nR

I rev to 3500rpm on my stock tires. Feather it for a split second and drop the clutch and floor. Spins for a second, but the tires catch the road and I get satisfying launches. You should go out and practice. Try everything. And pick whatever you like best...

Practice makes perfect. Firt time out the track, everyone gets dissapointed, but after you get the hang of it, you get a helluva lot better times than the first.... Good luck!

Big Teggie

The best way i found to launch my car was to just fully dump the clutch at 5200, and it will spin a bit but ever drop below like 4800. I can pull 2.3 60' with this technuiqe. I ran a 15.3 at 91mph this way. I also run at 28 psi, this works great for me. Good luck

koolhatch

What if you have a set of good tires like some Toyo Z-rated tires or somethin... and you just hit the gas straight... and didn't hold the gas at a certain RPM range like you guys say... has anyone had any experience with this if it gave any good results... i know it doesn't sound much like a strategy but what do you think? thanks for your posts

H23 Power

hit the gas from idle? it would bog...

if you drop the clutch...which is basically just hittin the gas from about 4k rpms your asking for a lot of tire spin...

you just have to practice...all tires are different

koolhatch

hey, what about shifting... do you guys have a secret rpm range before you shift to 2nd, 3rd, 4th etc...? .... and when you finish the quartermile do you actually get to shift to 5th or do you just end up at 4th gear and just let it go???

ITR41

4th will be the last gear you need for the 1/4 mile....in my R I launch at about 5800 and ride the clutch a little bit....I also have LSD so I can launch a little higher than a GS-R....shift at redline and very fast. if you feel wheel hop from first to 2nd try to shift a little easier on the shift your next run

H23 Power

shift as close to redline as possible...but watch the revlimiter..it'll kill your time if you hit it....

G_S_R

redline, redline and redline. hope this answers your ???
i launch at about 3-3.5K.

MrBite

Actually it's full throttle now, what with traction control and electreonic starts and all... no more tire smoke, just stranded stalled cars (although not lately!)