Gtr 32 1/4 Mile Time

[rb180]

Just took my GTR out for abit of dragging fun 2night. Was pretty impressed at getting a 13.1 @ 106 mph for a basically stock 32 gtr with just a cat back exhaust and exedy button clutch. The factory spec is 13 flat out of factory right ?

Also something i found weird was i was just red lining 3rd gear as i crossed the finish line. That compared to my supra ( i was redlining 4th gear as i crossed the finish), just wasn't used to it. I guess that is becoz of diff gear ratio's ?

My 60' time of 1.943 is abit high right ?

Any tips on how i can lower that abit ?

Other than that i was pretty happy with it. The AWD sure is great for launches (even with street tires) compared to a rwd with street tyres aswell.

Any comments or advice is very welcome

[OFENSV]

nice work, wat sort of mph were you doing in the supra and wat time

[rb180]

nice work, wat sort of mph were you doing in the supra and wat time

umm if i remember right it was 13.00 @ 111 mph

So it had a 12 in it but standard clutch and shitty street tyres restricted launches alot.

[-_-StRyDeR-_-]

lots of practice would bring your times down.

CJ

[The Mafia]

GTR should be able to manage a 12.9 easily.

Keep trying!

[rb180]

GTR should be able to manage a 12.9 easily.

Keep trying!

how should it be able to manage a 12.9 easily when they are 13 flat from factory? and i have very minimal mods. Also consider it is 16 odd years old so it wouldnt be running the factory times now days. but ye u are right i should keep trying because practice makes perfect right

[burnsie]

did u lower ur tyre pressure. and the 1.9 60 footer is a little high i think when mines a 2.0 and its a gtst

[rb180]

did u lower ur tyre pressure. and the 1.9 60 footer is a little high i think when mines a 2.0 and its a gtst

yeh i did let them down to about 20 psi in the rear. But i wasnt gettin much traction loss at all really. Yeh i have to perfect the launch and i reckon i could get the time down abit.

[burnsie]

drop them bit more i think maybe 15psi thats wat i was runnin. are u droppin the clutch or riding it a little

[rb180]

reving to about 4000-4500 rpm and riding it a out a lil then dropping it. Any better ways to take off?

Like rev a lil high and just drop the clutch ?

[RellikZephyr]

i have found

dont go below 20psi on street tyres (good for slicks) but with street tyres below 20psi you start to lose the bonus of letting them down (something to do with the fact they are steel belted) the best pressure is 22-25psi (depending on day)

also if you have aftermarket clutch you should be launching at about 6k for best launch (handbrake on let out clutch till just enguaging then just drop and release handbrake) , with a 4.5k launch you will be dropping of boost for short period (destroys your ET) i stuffed a launch once revs dropped to 2500 and did a 13.6

also with your trap speed of 106mph you should be running mid-high 12's

i have done a 12.7, with 60ft = 1.8 trap speed = 105mph

mods were turbo back zorst, pod filters (no shield) , 11psi boost, tune (car prob made 205rwkw) and full pressure tyres (36psi)

but it is simple as Practice makes Perfect ... play with revs on launch, dont wait till limiter to change gear (i change at 7200-7500) should be changing just after your peak power/torque

and most of all ... have fun ... but thats not hard when you own a skyline

hope that helps

Cheers

RellikZephyr

Edited March 10, 2007 by RellikZephyr

[RB GUN]

for launches in a GTRRRRR you need to launch em at about 6000RPM + then u will be amazed...

But u gatta be carefull with ur diff and all that... my mate did a 12.1 in his 32gtr and he was dumping it at 7000rpm, and on stainless steel tyres.. and he broke his gearbox 2 days after... his gtr has a full exhaust and cusco soil overs...

[a20089]

for launches in a GTRRRRR you need to launch em at about 6000RPM + then u will be amazed...

But u gatta be carefull with ur diff and all that... my mate did a 12.1 in his 32gtr and he was dumping it at 7000rpm, and on stainless steel tyres.. and he broke his gearbox 2 days after... his gtr has a full exhaust and cusco soil overs...

Yep 5500+ I've found to be best with a gentle release of the clutch, got to try with a Jim's clutch soon.

Stainless steel tyres? They'd be a pain to keep clean and a solid ride :-)

[VSPEC-33]

When i went to Heathcote, my best time of the day on my stock GTR (R33) was when i changed gears earlier, i crossed the line in 4th gear. I shifted at about or just under 7K and got a 13.2 @ 106. I had a 1.9 60ft aswell, the track seemed really slick compared to the street and she was just spinning all fours, ended up launching at about 4800-5000rpm. On the street it does need 6K plus or else it will bog down (twin plate takes up all the slack instantly).

[ali-turko]

to get the best possible time u have to be brutal, i launch at 7500 and side step the clutch, and change gears at 8200rpm and i got a 12.5 with just an exhaust and dirty airpods

[RellikZephyr]

i found i got to much wheelspin doin limiter launches (strip not quite a grippy as road)

about 5800-6k is the best spot to launch mine i found (on Potenza GIII's and OS Giken twin plate clutch)

with that little bit less wheelspin she hooked up bit quicker

did limiter launch ran 12.88 did a 6k launch got 12.76

and i change gears earlier cause you can feel when she goes past her peak torque (mine approx 7500) and thats when i change

RellikZephyr

[PSI_GTSII]

When my 32 GTR had 228rwKW it ran a 12.4 @ 181kmh. (112mph)

I'd be changing to 4th before the end of the qtr.

I'm not interested in destoying my car to shave a few tenths so stage my car at around 5500rpm, and feed the clutch out quickly, results in consistent 1.9 60fts

I went from a 340rwHP 2WD RB30ET Skyline previous and I must say launching a GTR is 110% easier and more consistant

[Topaz]

My GTR with 240rwKw ran 13.1 with a muffed standard clutch....which is due to be replaced next.

Also, I sorta baby my launches alot and get 2.0 second plus 60ft times.

[LTHLRB]

hey bud saw you racing on friday, car looks very clean

Your running about the same time as i am in my gtst.. I rekon with harder launches and quiker gear changes ull be right

[hanyou]

i ran a 12.47@111mph, catback, hi flow cat & front pipes, apexi pods, mines ecu & os giken twin plate clutch.