Launching An R32 Gtr

[chances]

Hi all,

New to the site, just got myself an r32 GTR and its already in getting a new clutch (was already at the end of its life when i got it )

Anyway this is the 1st turbo car ive owned and im just interested in some launching suggestions, i didnt drop the old clutch but on the day it eventually died i think i started to get the launches good, just reving to around 3k and letting the clutch out till it starts to bite and then applying the rest of the power.

Is that ok ?? or will i burn out clutches ??

Is dropping the clutch at 4-5krpm ok ? i really dont want to break anything on the car hey

Well thanks for your replies in advance

Max

[gazza750]

just rev it to 7g n drop the clutch works well for my gtr fora good launch

[chances]

just rev it to 7g n drop the clutch works well for my gtr fora good launch

ouchy ... i will try it when i take it to the drags ... maybe once on the street to "test it"

So is that the best method ??

[julion]

ouchy ... i will try it when i take it to the drags ... maybe once on the street to "test it"

So is that the best method ??

sounds like the best method.. Your getting a fully hectic super heavy duty clutch right?

When i rev yb r32 rb25 to 7 and drop the clutch i get mad wheel spin and lots of smoke, but that shouldnt be a problem in ur all wheel drive godzilla

[Topaz]

...Anti Lag, (for people with columbian drug syndicates).

A cheaper method is more boost as well, but upgraded turbos before you bar it too high

[marchGTR]

6.5-7G launches are best for gtr's. I had a good single plate in my 33r and used to drop it often on the street (good fun in the wet!), and clutch was still fine after a year

Edited April 5, 2006 by marchGTR

[lang]

with my r32 gtr (and a twin plate clutch) i would have done at least 40 7000rpm clutch drops, its the only way to get it moving without boggind down at all, that launches it like no other car ive been in.

[Quinny]

How does the gearbox cope with 7000rpm clutch dumps? From previous experience, it is best to use clutch slip to take the strain off the driveline when launching at high revs. I would have thought this would be especially important in an AWD car.

[marchGTR]

if you are driving a wrx i wouldnt recommend launching from high revs with a standard box...sure you can break boxes in gtr's as well but if your not too hamfisted with your changes it should hold up fine.. i would have done hundreds in previous 33r without any gearbox troubles

[Adriano]

just rev it to 7g n drop the clutch works well for my gtr fora good launch

nah gazza rev it to 9 it loves it..

[djr81]

nah gazza rev it to 9 it loves it..

There are some things to worry about other than the drivetrain.

Firstly the easiest way to lunch your RB26 to to launch with the sump half full. Make sure if you are going to the drags etc that the thing is overfull - by about a litre.

Secondly - using massive rpm on launch is a really good way of destrying the oil pump on an early RB26 - you have been warned.

Finally, the amount of rpm needed depends on how sticky your tyres are. Anything in the range of 4000rpm to 6000rpm is required. I needed 6000rpm at the last hillclimb, but that is with 255 width R compounds tyres on a hot day with the car facing up hill. Most days you need less than that.

Edited April 6, 2006 by djr81

[wrxhoon]

How does the gearbox cope with 7000rpm clutch dumps? From previous experience, it is best to use clutch slip to take the strain off the driveline when launching at high revs. I would have thought this would be especially important in an AWD car.

You been watching to many rexes break their boxes . GTR boxes are much stronger than that unless you have huge power in the order of 600+p.s. you wont have a problem with the box but you need a decent clutch when you start pumping some decent power .

As for the RPM you drop the clutch ( yes drop) it will depend on the tyres you hve and the turbos .

No point droping the clutch at 8000 if you are just going to spin all 4 and go nowhere . Stock turbos i would try about 5-5500 and take it from there. If she bogs down try a few more RPM until you get the balance right between wheelspin and the car bogging down .You need a certain amount of wheelspin ( all 4 ) so you wont bog down .

Edited April 6, 2006 by wrxhoon

[Quinny]

I knew that the GTR gearboxes were good, but I didn't realise that they would put up with that sort of abuse. It is pretty common for AWD cars to have gearbox issues - mostly in WRXs, Evos, GTiR, Familia etc, the GTR was designed for racing so I guess it makes sense to have a pretty good gearbox...

[chances]

Hmm lots of ideas there, thats great ... just got it back this arvo, havent tried anything silly yet, but im going for a spin in a sec and ill see how it goes...

Just a single plate heavyduty r32 plate I got installed, stocko gtr with 3" from the dumps back, nothing crazy there so it should be able to handle up to and more HP then i have.

[Duncan]

well on the race car I:

hold it on the line with the handbrake on so it doesn't roll, and to take up some slack (hand on the button)

bring the revs up to 5500 (n1 turbos and semi slicks)

then the red light comes on (3-5 seconds to launch) let the clutch out *slightly* the car is held by the handbrake and a slipping clutch at 5500.

light goes out, drop the clutch, let the handbrake go and floor the throttle

the yellow car demonstrates:

1: Ready

2: Go

I hope MIB doesnt read this....