How to LAUNCH a GTR right!!

[West]

... i havn't really practice launch....ect but had a bit of play around with a 2004STI with the work on it and i just couldn't launch my Gtr right, only when we do a rolling start i was about 4 cars length in front but thats not important. I just want to learn how to launch my car right so when i hit calder i could have a good time.

Advices need please

[krzysiu]

Rev it to the limiter and dump the clutch

[pentae]

Hmmm.. I thought you just revved it to about 6,500rpm and step off?

[R32Boys]

7000 dont ride clutch drop it

[benm]

Take it to the track and practice. Much easier to learn when you have a proper prep'd track and a timeslip to gauge your efforts.

Start low, build up until you either break something or wheelspin and then go with what works best.

[[WLDCRD]]

exactly what r32boys said......get it above 7000rpm and dont ride it, just release the clutch! if you go too low (rpm) then it will just bog and you will get flogged off the line. Hope you have a decent clutch though!

[Duncan]

:werd: you are going to kill a standard clutch within 1 or 2 launches

Then you are going to break a driveshaft or two.

But hey, you'll launch quickly

[West]

Yes i tried anything under 6000rpm and it just Bog down big time. I have after market clutch and i did try to ride the clutch and i've burnt a bit off it, dumb me.

I'm so used to RWD car, launch about 4,5000rpm and never bog down. Is it that easy to break something in a GTR by launching it at 7k?

[ferni]

I've done plenty of launches - only broke a gearbox so far, pretty sure that wasn't because of launching, it was 3rd gear.

If you want half launch i find you can get off the line quick even if your only on about 5000rpm, but you've gotta slip the clutch a little, but you'll need a strongish clutch for that, std one will just slip i think. But yeah you can launch at 7-8k as well, but i find just steping off the clutch doesn't work as well as easing it out.

[West]

I've done plenty of launches - only broke a gearbox so far, pretty sure that wasn't because of launching, it was 3rd gear.

If you want half launch i find you can get off the line quick even if your only on about 5000rpm, but you've gotta slip the clutch a little, but you'll need a strongish clutch for that, std one will just slip i think. But yeah you can launch at 7-8k as well, but i find just steping off the clutch doesn't work as well as easing it out.

What you mean by half launch? At which ...rpm? See you at Winton

[7heavn]

I side step at about 5800rpm's for 1.7 60ft'ers if you've got a good clutch and sticly tyres go even higher . I wouldn't waste my time slipping the clutch in a GTR depending on the clutch it will burn it up real quick and will slip for the rest of the run .

[Fitzpatrick Speed Works]

Dumping the clutch or side stepping it will break driveshafts, stuff uni's and stuff your clutch center... If you watch all the japs how they do it is the nicest possible way for the best result.

Pull your handbrake on and leave your hand on it pulled up bring the revs to around 6.5+ and pull the clutch out till you can feel the car fighting the handbrake, from here release the handbrake and clutch at the same time and your away.... SOunds hard but by doing this the clutch is already semi engaged and nearly up to speed and all the slack has been taken from all your driveline components. Sure it burns the clutch a little but its no worse than any other method!!!!

[ferni]

What you mean by half launch? At which ...rpm? See you at Winton  

Half launch .. dunno how to explain it, getting off the line without bogging down big time, but without launching full on... around 4000rpm and slowly rising the rpm as im slipping the clutch out. I've got a twin plate so its pretty strong compared to a stock clutch... I don't do it that often, as the others have said i'm sure it willbe burning it out doing that... but i found just stepping off the clutch felt to harsh on the car and just didn't feel as smooth.

Not sure if i'll be at Winton (not racing, might come for a watch) if i do, i'll take you for a quick drive to see if i can show you how i launch.

[West]

Half launch .. dunno how to explain it, getting off the line without bogging down big time, but without launching full on... around 4000rpm and slowly rising the rpm as im slipping the clutch out. I've got a twin plate so its pretty strong compared to a stock clutch... I don't do it that often, as the others have said i'm sure it willbe burning it out doing that... but i found just stepping off the clutch felt to harsh on the car and just didn't feel as smooth.

Not sure if i'll be at Winton (not racing, might come for a watch) if i do, i'll take you for a quick drive to see if i can show you how i launch.

Same here, not too sure now as i havn't found a proper set of rims for GTR, i'm running 17/8,5 and 17/9,5 so car handle a bit wierd for a 32Gtr also my Tein is wearing out a bit as well.

yeah i think i know what you mean by a half launch but i think my heavy duty clutch won't hold it as well as your twin plates therefor it will BOG down.

[RBN1]

Rev it to the limiter and dump the clutch

and sit there while you do a 4 wheel burnout for a bit

[Gav]

Good timeslips in a GTR comes at the expense of wear and tear - literally!

Decide if you have the spare cash for clutches, gearboxes, driveshafts or diffs before you try those rev limiter launches.

That said, a hell hard launch even in a near std R is bloody good fun!!

[ferni]

West: what size tyres are you running? You know its bad to run different size rims/tyres on a GTR right? messes with the ATTESA.

[Squizz]

I've done plenty of launches - only broke a gearbox so far, pretty sure that wasn't because of launching, it was 3rd gear.

If you want half launch i find you can get off the line quick even if your only on about 5000rpm, but you've gotta slip the clutch a little, but you'll need a strongish clutch for that, std one will just slip i think. But yeah you can launch at 7-8k as well, but i find just steping off the clutch doesn't work as well as easing it out.

Werd! 4 Clutches and 2 Gearboxes say you're right.

[PurpleR32]

Dumping the clutch or side stepping it will break driveshafts, stuff uni's and stuff your clutch center... If you watch all the japs how they do it is the nicest possible way for the best result.

Pull your handbrake on and leave your hand on it pulled up bring the revs to around 6.5+ and pull the clutch out till you can feel the car fighting the handbrake, from here release the handbrake and clutch at the same time and your away.... SOunds hard but by doing this the clutch is already semi engaged and nearly up to speed and all the slack has been taken from all your driveline components. Sure it burns the clutch a little but its no worse than any other method!!!!

This is the best method, and the one i use. It does take a little getting used to co-ordinating the right actions.

Just dialing up and dumping places too much shock on ALL the driveline components. Basically the handbrake method loads up the drivetrain and puts less stress on the components. Sure it is at the expense of clutch wear, but i would rather put new plates on my clutch than replace a gear in my dog box, or a drive shaft.

Basically there will always be some wear and tear with ANY method of drag racing. Its just up to you which part you want to replace sooner.

[[WLDCRD]]

you have a dog box in your echo ross? haha