Drag Racing Launches
 

I'm having trouble launching my car properly
any tips?

ihave a 6MT G35
stock tires 245/45/18 Michelin Pilot Sports

can't seem to stop the wheel spin, regardless of how low i launch the car in the rpm range.

or possible i'm slipping it the wrong way.

how much is it it my driving, and how little of it is the tires fault?

i'm consistently getting bad 0-60 times.


any help would be great, thanks

maybe because its cold?

If you want a good launch, you need traction. If the ground is cold, wet, or dusty, you will have less traction.

If your tires are narrow, cold, hard, or worn, you will have less traction. (tires get harder as they wear out, and the rubber compound at the surface is softer than the rubber near the chords of the tire.)

Suspension can also affect wheelspin: A suspension that is too stiff will not allow weight transfer to the rear of the vehicle, causing the rear wheels to have no weight over them, allowing them to spin easily.

As far as your foot goes, you need to feather the throttle just enough to get a little spin before you are supposed to launch, so that the car starts to move forward right when the light changes, without excessive wheel spin.

All cars have a different power train, so it might take a while to figure out if you can get away with a low rpm clutch drop, and let the power build up over the rpms with very little wheel spin - OR - if you need do drop the clutch at a higher RPM to stay in the power band, and make due with a bit more wheel spin.

I'll definitely try that. As for switching to low profile tires will that adversely affect ny times more because of the lower sidewall flex? My plan is to run some 255/40/19's in the rear next season with some UHP summer tires


I also read to not fully release the throttle during shifts, as a normal shift would be
1.Fully Release throttle
2.Engage clutch
3.Change gears
4.Release clutch
5.Engage throttle

Now I read from a site I should change to

1.Engage clutch, whilst holding down throttle
2.Release throttle
3.Change gears
4.re-engage throttle
5. Release clutch

Its a slightly less painful form of speed shifting

What do you guys think?
Posted via RS Mobile

uh, what do you think is going to happen if you keep it floored while you push in the clutch?

it's either going to over-rev or bounce off the rev-limiter.

The way you do it in your first explanation is fine, except change 'fully release throttle' to 'partially release throttle' and you're set.

^ you're actually right, i misquoted what the website said.

during clutch engagement i release the throttle half way.

it's going to take some time for muscle memory to kick in.

it was in September when i was drag racing, not recently