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

[[TWUBLE]]

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

[-Joel-]

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..

[GTS-4 Ben]

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

[RazorGTR]

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.

[R U NUTZ]

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..

[RazorGTR]

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.

[SlowGts-t]

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.

[R U NUTZ]

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..

[4nick8]

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....

[[TWUBLE]]

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

[-Joel-]

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

[SlowGts-t]

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.

[4nick8]

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.

[whatsisname]

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

[PVL-747]

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