1/4 mile times on a manual GTS-t?

Hey guys, just wondering what a good 1/4 time is for a R32 GTS-t? I went to the Nightspeed Drag Wars on at meremere and ran a 14.6 (first time at the drags actuallly racing.) with a 0.731 reaction time....
Car only has a remapped computer, 3" Stainless Mandrell bent HKS Superdrag exhaust with TRUST Highflow cat and resignator, GAB Adjustable suspension and about 13psi boost...
is that a good reaction time ? haha or do i need more practice... i got told i should be able to run a 13.5 at best.... but i think that myte be pushing it!
anyone?

Depending on track conditions that is really asking a lot for the mods you have done.
My last run at meremere in my T.

Mods:
War Motorsports turbo upgrade
Bosch Motorsports racing pump
Nismo Fuel pressure reg set to 3 bar at idle
Trust Airinx Pod
Custom 3" straight through exhaust (Al's Mufflers)
Front Mount intercooler
Trust Type R blow off valve.
Turbo Smart Bleed valve. (boost set to 14 psi)
Factory computer
Facotry injectors

Power 170kw at the wheels at Torque Performance

Best run was a 13.88 @ 104.6 mph
R/T .533

Wheelspin through first two gears and into third. Track was slippery should have been a very low 13 sec pass. Tyres at full 35psi, full tank of fuel and full interior.

thanks :)
we softened the bound on my car to the max and lowered the tyre pressure back to like 20psi just for the drags. I think the main thing i need to work on is my launch... although ive got a launch control unit ordered for me i still need to work on the launch. but was HEAPS of fun none the less!!! :)

Hows the GTR going? I think last time i saw you you had only just got it....

Razor: i thought you would had may more power at the wheels that that in a GTR!!! I thought stock it would have been around there. My gts-t is around 170rwkw, and thats with only a few mods done to it.

Ethan,

I think you missed the bit in Razor's post where he said this was in his "T", meaning R32 GTS-t.;)

Originally posted by Ethan_R33
Razor: i thought you would had may more power at the wheels that that in a GTR!!! I thought stock it would have been around there. My gts-t is around 170rwkw, and thats with only a few mods done to it.

That was my GTS-t that had that power. Now before you go thinking it is not much the dyno that those figures came from is a very conservitive dyno. Some recent figures to compare with.

1997 WRX STI 156kw
91 GTR 186kw
93 EVO 153 kw
91 GTSt with big bore, pod, fmic, link,440cc injectors, 1 bar boost, upgraded fuel pump, nismo fuel pressure reg. 152kw

So for my lil GTS-t to throw 170kw that would put it up with the GTR's in performance which would make sence since I kept up fine with another GTR that threww 222 kw on that same dyno. You can not compare dyno's as they all throw different numbers and we at SDU proved it. As much as 18% different from one to another. I would bet your car would throw about 150kw on the Torque performance dyno, and yours is a 25T not a 2 liter. Trust me Wraith32 has seen that car go and been in it and it was a wicked machine. It would shit all over my current GTR once hooked up, but getting traction at 1bar is not easy until third gear.

40RCD now australia's quickest skyline used to run 13.4 @ 108mph with these mods: 3 inch exhaust from the turbo, air filter, 14.5 psi boost, automatic, avgas and timing!!

another car subzero did was a R32 GTR, 3 inch exhaust (std dumps), 18psi, std turbos, racing fuel and timing ran a 11.7 @ 121mph.

Man I wish New Zealand drag strips were like those in the States or OZ.

Hey, looking at my mods above... do i need a dump pipe? Im saving up for a Link Plus computer at the moment... and then a fmic and then possibly a surge tank and bosch motorsports fuel pump (porsche 911 model)... but is a dump pipe necessary? or do they just make noise?

Thought I might add this

Er.. Reaction times have no bearing on ET.

and do the fuel pump first Will save you grief in the long run

60' times are an indication of how good a launch you got. I think Razor was in the 2.5-2.8 second range, indicating that he would get a 13 flat if he got a decent launch.

Its already got a semi highflow fuel pump in it which will do for now... the LINK PLUS will help greatly... but id rather get the link first then the cooler then the pump and surge tank... Ive had a guy look at the car and he suggested for the setup ive got and what i want to achieve thats the best way... and when thats all done im either installing a T04 turbo (i think thats what its called) or getting my turbo balanced...
Im not really going for extreme power... just a vast increase on what i have at the moment.

oh... yeah i know that reaction time has nothing to do with the ET but i thought id put that in there... my avg reaction time is around 1.1 :( so haha i need some practice thats for sure!!!

Here is a run in which I did a 13.884.

R/T .554
60' 2.638
1/8 mile 9.118 @ 78.47mph
1/4 13.884 @ 107.20mph

I was still wheel spinning until nearly the 200' mark and the 1/8 mile time reflects that. Since it took me 9.118 sec to reach half track yet only another 4.7 sec to cover the last 1/8 mile.

here is a little example: say you run a 13.5 @ 112mph with a 60ft of 2.2 sec. now you've had quite a bit of wheel spin. if you were to bolt on slicks and say you ran 1.7 sec 60ft, so the difference is .5 sec, now double it = 1.0 sec off the 1/4 mile. therefore you could possibly run 12.50's IF you run a 1.7sec 60ft. you basically double whatever you make up on the 60ft mark and subtract from your E.T.

i ran a 14.6 at 93mph with 2.2 60ft (not because of lack of traction TOO much bogged down hard) it was a really warm night to :(

my car has 146rwkw last time it was dyno'd

5speed

thanks guys... this helps me alot to understand the logistics of dragging... :)

Last mine got on a DD dyno with stock everything was 225rwkw.. So.. if I bolt on a exhaust dump pipe inc.. say a conservative extra 15kw.. that brings it up to around the 140rwkw mark.. then the boost increase (14psi) and computer remap I have no idea what that would be roughly..

But I remember reading some where that in japan when first released the R32gts-t's should run around 14.9 or 15 flat.. and the R33's should run 14.6..

I figure if a SS VN commodore runs a mid 15 second quarter then by the time I hit second gear they are close to the rear bumper then I start to pull still but not as quick by about a car length maybe a car length and a half that would put mine in the flat 15 ... oh yer.. I ran a VT SS Gen II auto I got a slight jump and stayed only by a bees dick in front all the way until half way in third.. and they are supposed to run a flat 15 also..

Well the drags are on in chch this sunday. I am not running as I havn't done anything to my car since the 14.0

My brother is running his GTS-T, slightly bigger turbo, exaust, filter and he has some 255/17's for the back ;)

Larger rims will cause you less wheel spin but also it takes more power to turn them over. Hence the reasons most street drag cars run 15" wheels. As your power increases dramaticlly you can go to larger tyres and wheels to benifit from the increased power. Where you will feel it the most will be in the mid range and towards the top end.

and also with larger rims u normally have low profile tyres. eventhough they're wider tyres but with low profile tyres, they will not flex as much as high profile tyres hence traction may be not as much high profile tyres with narrower tyres.
this has been proved by myself and vince. vince got a lot better time than i did eventhough i got more power than his. i believe vince was running with 205 or 225/50/16 when he did his best time.
but myself only did the best of 14.2 with 245/40/17 tyres with full tyres pressure of 40psi.
dat's why if u seen pro rwd dragster, they always use very very thick tyres with very very softwall..
u also have to rememba, soft wall tyres are not good for road use.. stability n cornering is not as good as hard wall tyres.. but they're good for drags..

i think i need a driving lesson from vince.. :p

Rudy my best time was with 225/50/16's and even with them wheel spin was horrific.

Rudy it all boils down to getting it hooked as early as possible and I still was too aggressive off the line but like you I also had a rather large turbo thus if I came off boost it was all over any how.

Didnt you have the single spinner before Rudy? (No LSD)?

Er.. I managed to do a 14.8@95mph er.. with a 2.1 sec 60' time on 255/40R17's at 35psi, so they arent that bad. Er.. drop the pressure a bit for a better result I think.

azlan, without LSD i managed 14.6 (best time)
with lsd i get it down to 14.2

yeah.. drop da pressure a bit.. i was too scared to do it b4.. scared i would damage my wheels by lowering da pressure..

Some impressive times for '20DET's, it's good to know that a worked 20 can give a near stock 26 a run for it's money! What do you guys think the 0-100 would be with times similar to mid 13's and mid 14's??? And for that matter, what is the stock 0-100 of a GTS-T or 4?

...missing SDU....

hrmmm good question... i think i hit 100km/h around the 6-7s mark... not entirely sure tho

I remember reading some where on the net that a R32 GTS-T hits 100km's in around a 6.8. and the quarter mile in 14.9..

Not sure how accurate this is.. But it is probably when the car was new and on jap fuel.

I'm not sure if a 7000rpm clutch dump in a GTS-4 would get it down the quarter any quicker. It weighs some thing like an extra 100-150kg's.. That would be two people sitting in your back seat :)

yes it would. Most R32GTS-4's are averaging 1.7 secs on their 60' time which gives them at least 0.4-0.5 seconds on their 2wd counterparts. Er.. and isnt the 60' time worth double the ET? or something of the sort?
The T's start to catch the 4's towards the end of course dont.

Originally posted by -Joel-
I'm not sure if a 7000rpm clutch dump in a GTS-4 would get it down the quarter any quicker. It weighs some thing like an extra 100-150kg's.. That would be two people sitting in your back seat :)

...or one friend, if he's american. Yea, the weight definately makes a difference, then you always have to accept that a 4 has more power loss through transmission (that's where the T catches up).

Somewhere online I found a weight reduction calculator, where it listed parts removed, expected weight loss and the Kw increase in the process, I can't remember exactly how it went but it was surprisingly effective.

Originally posted by SlowGts-t
Er.. and isnt the 60' time worth double the ET? or something of the sort?

I know what your getting @ here, I'd like to know if there is a calculation or way of figuring out how a reduction in 60' time reduces your ET???

Is it simply...... an ET of 14.00 on a 60' of 2.2 would become an ET of 13.80 if it was a 2.0 60' or does the ET drop even futher with a better 60'??? I got an ET of 13.1 (109.5mph) on a 60' of 2.1, so if I drop it to a 2.0-1.9 can I expect a 13.0-12.9, or even better again?, assuming a clear run for the remaining track.

Hope I haven't lost anyone here :D

if you got a 14.00 with a 60ft of 2.2, then it would become a 13.80 if the 60ft was 2.1.

if you got a 14.00 with a 60ft of 2.2, then it would become a 13.60 if the 60ft was a 2.0.

if you got a 14.00 with a 60ft of 2.2, then it would become a 13.00 if the 60ft was a 1.7.


get the picture?? hope this helps! :)

http://www.geocities.com/pvl747/pvl747.html

Cool, thanks for that mate. I was hoping that's how it worked


So, given my 13.1 @ 109.5 & 2.15 60' , if I can drop the 60' to a 1.95, which, given a fairly conservative launch on that run, shouldn't be toooo hard, I'll be looking @ a 12.7 ET, hmmm that'll do me nicely.

you've got it :D.

http://www.geocities.com/pvl747/pvl747.html