Launching A 303awkw 32 Gtr

[josh23457]

tried a few practise launched today in the lead up to a few hill climbs coming up

car is 32 gtr

-303awkw

-5 turbos

-twin carbon clutch

did a couple of launches around the 6500 mark but evertime i dropped the clutch the rears chirped for a milli second then took about 20m before the turbos came on boost in 1st. too me this is shitful with a car with this much power.

whats the best way of building boost or whats the go in getting this thing off the line somewhere near boost!!!!

thanks

[Deano 1]

i got 312awkw and if i dump it at 6k+ it will smoke the tyres for about 10-15meters, its hard to keep it off the rev limiter. But it deff dont bog down with no boost. I dont no whats up with that

[MBS206]

Just holding revs in neutral, will not produce enough air flow, to make enough power to stop good tyres from gripping.

Don't just drop the clutch, slip it a little.

[josh23457]

Just holding revs in neutral, will not produce enough air flow, to make enough power to stop good tyres from gripping.

Don't just drop the clutch, slip it a little.

so should ibring it up against the handbrake or something?

[SLAPS]

Its only 300rwkw not 500rwkw.

What have you done with cam timing?

Have you tried pulsing the throttle instead of holding it at a constant rpm.

[Swiper the Fox]

off the limiter and sidestep it.

thats how my wife used to launch with around that power. She did 1.690 60' time and ran 11.9 @ 121 with Federal 595 road tyres.

6500rpm is not allowing the shaft speed of the turbo's to be high enough when the rev's drop on clutch bite. Just give it a couple of pops of the limiter and drop it. You will have to keep the hand on the shifter as its a quick change into 2nd with a STD gearbox.

Edited August 23, 2009 by DiRTgarage

[fatz]

6500 on a stock gtrand your bogging

man your gay!

[Risking]

I drop mine from 9000rpm and it hooks up and goes,

When launching though we load the driveline up againist the brakes its stops the shock load going through the front diff and tearing the teeth off the pinion.

Not overly great for the clutch and takes alot of practice when you dont have a handbrake but its the only way ive found to keep the front diff inside the sump and all the teeth on the shafts.

[Rowdyr32]

I've only got a lot less power than you and mine will spin all four 265's for a second on streets no worries at launch.

Listen to the others above....

Just stop being a pussy and rev it harder!!!!

[Mr. Keets]

...off the limiter and sidestep it....You will have to keep the hand on the shifter as its a quick change into 2nd with a STD gearbox.

zackly. It wants it turn right so get ready for it

[sav man]

6500 on cold tyres 7000 on warm tyres is what i used in the targa car before the pfc pro, hooked up really well. only need 6000 with the launch control.

only use 6000 in my r32 to protect the clutch, on roadies it hookes up well. Boggs down with r's on though

Edited August 23, 2009 by sav man

[Marlin]

Preload it against the handbrake, blip it up to about 6500 to 7000 (creates a little + pressure) and lift your leg off the clutch quickly as you can, not side step it. Bang against the limiter for a second or so until it stops wheel spinning, then bang second home.

My kilowatts must be ALOT more manly than DirtGarage's, coz with 313RWKW mine did 11.13 @ 128.5mph on a 1.8 sec 60 foot with a set on concrete Avon roadies

[BoyWhoCriedWolf]

My Autech wagon had 375rwkw, its a fkn heavy car. I found the best launch rpm was around 6700-6800. It ran a 11.8 on street tyres.

[Swiper the Fox]

Preload it against the handbrake, blip it up to about 6500 to 7000 (creates a little + pressure) and lift your leg off the clutch quickly as you can, not side step it. Bang against the limiter for a second or so until it stops wheel spinning, then bang second home.

My kilowatts must be ALOT more manly than DirtGarage's, coz with 313RWKW mine did 11.13 @ 128.5mph on a 1.8 sec 60 foot with a set on concrete Avon roadies

My wife was driving (maybe she got a little scared in the deep end) p.s. please dont tell her i said that...lol

[Strik3r]

your dobbed paul

[Marlin]

Yeah I'm definately telling. I've printed your reply. See you at Jambo.

[Brandon]

Busted big time

[GOT04]

you got to slip the clutch fast to get the fast 60 foots

if drop it u wont get the time.

if u make fast boost from say 4500rpm u wnat the revs at 6000rpm and slip the clutch quickly so u end up with clutch out on 4500rpm ready to fly

[Swiper the Fox]

you got to slip the clutch fast to get the fast 60 foots

if drop it u wont get the time.

if u make fast boost from say 4500rpm u wnat the revs at 6000rpm and slip the clutch quickly so u end up with clutch out on 4500rpm ready to fly

Im glad Stace is not coming with me to Jambo...

my technique netted me 60' times of 1.38 and 1.37 back to back last week so i must be doing something right.

Ive always been 60'ing quicker than the street tyred cars in the HPI list (except MJ)...all cars there had more power and less weight than me too.

John Munro had his clutch line fitted with a line lock kit...he would depress the clutch, press the line lock button on the steering wheel activating the solinoid, lift off the clutch, and take his finger off the button releasing the solinoid to drop the clutch on launch.

[Duncan]

Preload it against the handbrake, blip it up to about 6500 to 7000 (creates a little + pressure) and lift your leg off the clutch quickly as you can, not side step it.

this is how I launch the race car, but only 5500 to 6000. Personally the need to protect the clutch is more important that a tiny bit off the line because it still has to last a whole race. Its a little under full boost on my turbs because its not fully loading it, but it is realiable way to launch.

Loading the driveline up by letting the clutch slip a little for about a second before launching is important to make sure nothing breaks.

Ask Ben (Brad's current car) what happens when you take all the tough talker's advice and just dump it at 8000.