Gts -T Race Car Build - Ideas For Weight Reduction

[PM-R33]

And remove the rear wiper..... put one of them rubber bung thingies in it so it don't leak.

I did that

1.5kg weight saving, oh yeah!

[ARTZ]

so how do you drive backwards in the rain phil, sounds kinda dangerou

Whoa.... talk about off track thread!

This is about getting a 33 GTS-t to 900kg guys, lets be serious can we.....

I think you'll need to use GTR front guards.

just remove the guards altogether , not like they are doing anyting useful

[boxheadmr]

opps sorry.

Don't forget to also run as little fuel as possiable to keep the weight down. Simple but often forgoten,

[nickor33]

Thanks for all the replies . I have read them all. Interesting and helpfull. The car has been stripped of interior parts and has no seats or carpets, sound insultion taken out. Have the sprint v seat ready to go in with harnesses. The air con will be removed next. I am considering putting a carbon fiber bonnet on after the air con removal. I believe these can save approx 8 - 9 kg. after that will remove sound deadening from boot, few extra interior parts to go. BTW how much will the air con on an R33 weigh? how much weight would aluminium radiator save?

[ARTZ]

i got 2 in the shed I will weigh them tomorrow for ya..my guess is not much difference, though considering the original is plastic it is probably lighter..

[Josh_TypeX]

Took the aircon out of my 32 the other day, everything in the engine bay came to 14.9kg.

Aluminium radiator weighs a similar amount to the standard plastic one, how ever the larger size means it will take more coolant and thus increase the overall weight.

[ARTZ]

standard radiator single core 2.5 kg

52mm aluminium radiator 5.5kg

[RBNRG]

And remove the rear wiper..... put one of them rubber bung thingies in it so it don't leak.

Not an issue when lexan is going in

[Marlin]

Fark all difference in a rear screen. Waste.

[sav man]

A guy down here spent up on lexan, only to find it was heavier than the std glass. Nissan glass isn't heavy

[Sir Lord Van Von Vader'ham]

i saved around 8kg in doing the rear quarter and windows lexan. thats in a 31 though.

if its track only how about

fuel cell

removing hicas +all lines

titanium nut/bolts +wheel nuts

rotor with alloy hats

bonnet boot and doors in carbon

smallest wheels your brake will allow (i think you save around 1kg a tyre a inch)

alloy/titanium pipe work

etc etc

maybe even going something like a LS1/X/2 or VQ35DE+t lot of weight saved in alloy blocks and ive seen a dude pick up the 6 speed out of the VQ35 under one arm!

depend on how serious you are i suppose.

[On Edge]

great thread very interested in all these ideas!!!

[boxheadmr]

does the R33 have the same plastic fuel tank in between the spare tyre well and the rear seat the same as the s14/s15? If so fuel cells difference can not be as great and where i have seen most people place them is higher in the centre of gravity.

[sav man]

The std location of the R32 fuel tank is the best spot for it. They are so bloody nose heavy, you need move as much of the weight back as possable.

[RBNRG]

Fark all difference in a rear screen. Waste.

A guy down here spent up on lexan, only to find it was heavier than the std glass. Nissan glass isn't heavy

Fair call. Didn't know that.

[Noddy]

As I see it, the front of gtst's is where most issues are in terms of easy weight to remove.

frp bonnet and guards are a no brainer. I have made an mould and pulled a set of Kevlar guards out, <1kg each. Front bar with splitter is still in the works.

Eliminate all the normal comfort stuff, sounds like you have done most of that.

The windows, reg etc in the doors saves 20 kg on its own. Trimming the extra fat off the steel door ends up lighter than carbon ones I have weighed.

I have seen an s14/15 strut front end in a 33. I question if the weight of a loaded car will flex the strut, but I am looking into this over the next week.

I think close to 1000kg is realistic and possible, that's where I'm aiming, I'm building it for 2A Sports which has a min wieght restriction. I'll be under so this way I can choose where it goes to balance it all up nicely on the scales.

[FineLine]

I now have a carbon front bar including splitter and undertray, and carbon doors are being made as I type.

All from a local supplier.

pm for details. (33 only)

[PM-R33]

Photos of front bar?

Also while on this topic, does any one actually know the weight distribution of Skyline models? (As in 60/40, 55/45 etc).

Has any one weighed one properly? How much weight from the front has to be removed (or moved to the rear) to bring out a better balance towards 50/50? (obviously would be very hard for a GTR with the extra weight over the front axles).

[woolls]

Photos of front bar?

+1

[FineLine]

2nd pic from the top shows it. This is not suitable for a street car, it sits way too low.

Theres another pic further down that shows just how far the splitter protrudes.

track car only.

http://www.boostcruising.com/forums/index.php?showtopic=713232