Creating A Dedicated Track Gtr

[Beer Baron]

go on a diet and shed 20kgs will help too. i know a few of us are a bit on the 'rotund' side... haha.

[Fitzpatrick Speed Works]

Okay on the weekend I hooked in a bit on my GTR, this is going to be a drag car but I have some interesting figures.

Standard wiring loom inclusive of all computers everything= 42kg's thats massive I dont need half of that.

Standard heater/blower/ climate control = 13kgs, not as much as i hoped for but when combined with aircon stuff makes a difference.

HICAS system= 27kg's

Standard fuel cell with pump= 12kg's

Thats all I can remember off the top of my head.

Duncan a dry sump system will weigh more, you have the pump which are heavy, the bracketry, the lines and fitting and the resevior. I would work on the doors and boot, and remove the rear bar reo and front as well.

[Duncan]

haha we were considering changing the name to team roundworx for a while.....

but I'd rather take 20kg out of the car than exercise lol

[blk180]

haha we were considering changing the name to team roundworx for a while.....

but I'd rather take 20kg out of the car than exercise lol

Hahaha so true

Turbos hmmm

standard RB26 crank T04Z with 0.84

2.7-2.8 not sure

Rb30 crank i was thinking T04Z with 0.96 but wounder what the diff is in response to the T51R KAI BB as they would all most make the same power

But i think the RPMGTR has been thought many turbos trying to find the right setup.

[Duncan]

mmm i was tempted by t51r who wouldn't like 450atw in their track toy muahahahahhaha

[GTRgeoff]

I probably won't be building a track GTR, but a track MX-5. Do what the guys at Bullet do and chop the front off, space frame detachable front end (easier to work around) with discreet breakaway components for cheap fixes if I have a nasty bump,decent gearbox, brakes, Soarer 4.0L V8 with some headwork and MoTeC, maybe even supercharged and pumped guards with plenty of rubber. Add a decent hoop, seats and harness and it would be diabolical.

[Duncan]

sports sedan eh? sounds good for a gtr too except it already has a good suspension geometry and can't move the front driveshaft and therefore engine.

mx5s are a pretty good base though, great balance and nice and light. Have you seen bd4's car?

[Roy]

Yeh they sold the MX5 to a private owner a few years ago...its a great little car and very quick. It only had something like 180rwkws and 4pot AP brakes...beauty of low weight i suppose

[Beer Baron]

i reckon a good track GTR would be:

R32 GTST

install SR20 with all the good gear (built motor, GTI-R solid lifter, big cams, quad throttles etc all the fruit).

whack on something around a GT-RS turbo. tuned to about 260 rwkw. extensively lighten car. use a GTR rear cradle and hubs. 1.5way LSD. good clutch and maybe a S15 6 speed with stronger gear and a custome lightweight tailshaft. GTR front guards and bonnet (with vent for v-mount) and front bar. V-mount intercooler and rad set-up. nice brakes, light jap wheels. welded in 6 or 8 point cage. stripped bare interior. obviously some nice suspension bits and good set-up. I reckon that would be one very quick car and handle quite nicely with the shorter, lighter engine set-up. so good weight balance.

hmm i may just do it one day!

[fatz]

found a hr31 sports sedan rolling shell

i recon that would be a good start to scare the kiddies

[predator]

install SR20 with all the good gear (built motor, GTI-R solid lifter, big cams, quad throttles etc all the fruit).

what's with the silly 4 banger? I think the whole "weight balance issue" is overblown... rb25 (or 26 if the budget allowed) is the way to go for a simple exchange without mucking with rb30det's...

I'm heading that way.. need another $10k to get it the way I want it though...1.5 diff, radiator, oil cooler, sway bars, nick off hicas. actually those will only be $4k or so.. still put my car under $20k total cost

[Beer Baron]

well SR20 is quite light. being shorter it also shifts the weight balance further back, and gives room for a V-mount set-up which also moves some weight further back, and shortens the inlet tract. they are also very torquey with their square 86/86 bore stroke ratio. plus with solid lifters and the quads they can still pull a decent rev. i think it would make for a very nice track GTST.

[predator]

well SR20 is quite light. being shorter it also shifts the weight balance further back, and gives room for a V-mount set-up which also moves some weight further back, and shortens the inlet tract. they are also very torquey with their square 86/86 bore stroke ratio. plus with solid lifters and the quads they can still pull a decent rev. i think it would make for a very nice track GTST.

If you could do it cheaply I guess it makes sense... It would be an interesting comparison though. Do it and we'll have a track off in 12 months time somewhere

I have the engine figures here at (including transmission)

SR20DET 490 lbs / 222kg

RB25DET 667 lbs / 302kg

You'd have to allow the greater weight of the RB25 box vs the SR20 one (20kg?) in the above to compare the engines themselves.

VQ35DE+T in an R32 GTS-T (or an R33) could also be an interesting one?? assuming of course it can be made to fit relatively easily. In a few years when the cost / availability of the engines is a bit more down to earth.

[Guest Mashrock]

or once again. check out yahoo japan.

and buy one of the cars i beleive bee-r had for sale which i think was one of their old touring cars which raced with the calsonic 32 gtr?? or similar class anyhooo

i think it was around 4mil yen.

http://www.bee-r.com/main/usedcar/gr-a.htm

and there is the link.

The latest present condition selling price

7,000,000 Yen (including tax)

and i even did one them translate

http://translate.google.com/translate?u=ht...Flanguage_tools

i can only dream

but that in my idea is the ideal dedicated track gtr.

Edited June 9, 2006 by Mashrock

[Sydneykid]

install SR20

Yuk!

We have 2 Nissan SuperTourers with SR20's, personally I wouldn't touch one.

Ugly valve train, no end of problems. Weak alloy block, spindly crankshaft.

I take the RB31DET with the extra 80 kgs thanks.

And the extra 200 rwkw

cheers

[phunky_monkey]

ahhhhh, you all love the SR's and you know it!!

Richard's got the right idea...

[fatz]

richard like it in the bum thats why he loves sr20

[NickR33]

well SR20 is quite light. being shorter it also shifts the weight balance further back, and gives room for a V-mount set-up which also moves some weight further back, and shortens the inlet tract. they are also very torquey with their square 86/86 bore stroke ratio. plus with solid lifters and the quads they can still pull a decent rev. i think it would make for a very nice track GTST.

or you could just put a rotor in there *runs away to hide*

[Roy]

or you could just put a rotor in there *runs away to hide*

Dont joke...i have often thought about a 20B, though i would never do it.

[R31Nismoid]

But i think the RPMGTR has been thought many turbos trying to find the right setup.

As far as i know not for a while now.

Been the same setup for some time.

As with everything though in the early stages development probably had a number coming on and off.

Friend of mine had one of the ex-turbos on his car for a while, so at least one

I'll ask (if i remember) next week when i ringo him