260rwkw First Time Drag Techniques

[BaysideBlue]

hey guys, im hitting the drag strip in a couple of weeks for the first time.

car-->98 gtt, 260rwkw @ 1.1bar, gt3240, single heavy duty clutch, front 225, rear 255/40/17 bridegestone re050.

turbo is set on relatively low boost because of standard engine internals. the car gets plenty of wheel spins both first and second gear on the street. so at what rpm should i launch the car? any advantages launching it on second gear to limit wheel spin?

should i ride the clutch or dump it?

what tyre pressure do I use? 30psi front, 22psi rear?

do i need to do a burn out? whats a good burn out technique to warm up street tyres?

as its a quite powerful car for a drag racing noob like me what other precautions or things that i should be aware of?

thanks for the help

Edited July 1, 2007 by BaysideBlue

[Nismo_God]

hey guys, im hitting the drag strip in a couple of weeks for the first time.

car-->98 gtt, 260rwkw @ 1.1bar, gt3240, single heavy duty clutch, front 225, rear 255/40/17 bridegestone re050.

turbo is set on relatively low boost because of standard engine internals. the car gets plenty of wheel spins both first and second gear on the street. so at what rpm should i launch the car? any advantages launching it on second gear to limit wheel spin?

should i ride the clutch or dump it?

what tyre pressure do I use? 30psi front, 22psi rear?

do i need to do a burn out? whats a good burn out technique to warm up street tyres?

as its a quite powerful car for a drag racing noob like me what other precautions or things that i should be aware of?

thanks for the help

do not launch in second...it will put too much pressure on ur car....wheel spin means less pressure on your car, and as long as its not too much wheel spin u will get off the line alot faster then no wheel spin.....u will more then likely bog down.

launch at 4 grand and see if you just sit on the spot, hopefully the car squeals and takes off....if u spin topo much bring it down a bit but i have noticed that 4 grand is good for me on street tyres. dont ride the clutch, but prob dont just drop it....but id say more drop it then ride it....

front normal tyre pressure and rears sound good.....definitely do a burnout....best way to get heat into the tyres....no burnout means u will be doing ur burnout off the line....

where abouts u from? where will u be going?

[R31Nismoid]

Little point in a burnout with street tyres, i've found heating them too much hinders.

I ran a 12.9/109mph with 220rwkw. 2.10 60ft, so not the best being my best laugh was 1.9 60ft.

You will get wheelspin, impossible to not, you just have to make clever use of the clutch and power at the same time to have the least amount of it (wheelspin).

I'd say starting off around 4000rpm and see what works, whats too savage and what isnt.

Either way its gonna be hard.

I also ran a 12.1 with over 300rwkw, wheelspin no matter what i did to 1/2 track hehe. So with 260 you might be able to pilot it to a mid 12 on street rubber.

I really should get something bigger than 225's for my rear

[BaysideBlue]

thanks guys.

hmm..no burnout means u will be doing ur burnout off the line....while heating them too much hinders.. maybe something in between, a light burn out? how do you do a light burn out?

re 60ft time, is around 2 secs to be expected for a rwd car? i mean if more than 2.2 then i must be doing something wrong?

I really should get something bigger than 225's for my rear

lol 225s are really too tiny for anything more than 200rwkw on tap A factory standard Porsche Boxster S gets 265/18 and only 165rwkw. Edited July 4, 2007 by BaysideBlue

[Nismo_God]

yeah dont cook ur tyres but def some sort of burnout......light them up in 2nd and roll out....no braking....that should do it....

good 60ft for street tyres for a beginer is realistically 2.2....anything under that you got to be happy with.....i average a 2.1 on my 19" by 275....my best on them was 2.08....best i have done on street tyres is 2.025 but they were T1r's on stockies....

[R31Nismoid]

I did a 1.9 with the 225's, i even shocked myself with that

[weeman1]

sorry to hijack the thread a bit, but what if you have a clutch that doesn't allow for slip, im running roughly 200rwks on 225 toyo's. what would the best rpm to launch and how should i control the accelerator.

my fastest 60 ft so far is 2.23 but i know it can be faster, i just cant seem to get the traction off the line

any pointers would be much appreciated

cheers

[LTHLRB]

do a decent burnout... use tyres with a good sidewall.. something like a 225 with a 50 sidewall so u can deflate them or a killer compound 255 tyre.. which you already have..

take off with no more than 6,000rpm and go easy on the clutch dont dump it..

i ran 1.9 60 footer on 205/55R15 $50 dollar tyres i got from newlands rd 2nd hand tyres

13.1 1/4 with 205kw

and a killer burnout..

Regardless... You need heat in ur tyres

[SilverECR33]

thats interesting.

as my first time out, saw me doin a burnout the first 2 runs. then a rather experienced drag racer told me, "try not to do a burnout next time, as the street tyres perform worse hot". And as he said, I didnt do a burnout, and ran my PB time so far.

Edited August 13, 2007 by silverbulletR33

[VB-]

depends on tyres, some cars will launch better on cold rubber.

i dont see why your making all this effort to allow for crap tyres, when buying some decent ones will probly result in your best $ vs. gain on the track. why is everyone so dead set on getting big power when you cant even put it down properly?

a set of stockies is like $50 for 2 R33 rims? i know decent tyres arent cheap but for what you can gain, why not? have a spare set of rims/tyres for the track?

LTHLRB, damn good times for that power/tires. you've done well mate

[Eug]

why is everyone so dead set on getting big power when you cant even put it down properly?

this is one of my pet hates... people going around claiming ###RWKW, spent $##,000, but skimping on tyres.

[MBS206]

No it's not a Skyline link, yes it's for a Supra, but again, most of it still applies (Bar how to directly adjust suspension stuff)

http://www.supraforums.com.au/forum/showthread.php?t=18639

And EUG, your bug gets me everytime! nearly everytime I go to wipe my monitor!

[T04GTR]

if you can select low boost for take off then do it.

try and slip the clutch and dont mash it off the line. it takes some practice to find the balace of slip and bogging down. but best thing is to get out htere and have a go and get a feel for how your car behaves.

[Eug]

And EUG, your bug gets me everytime! nearly everytime I go to wipe my monitor!

:laughing-smiley-014: