Jump to content
SAU Community

Weight Reduction 25gt Four. Power/weight Ratio

Kei_ayanami

By Kei_ayanami,
in Engines & Forced Induction

 Share

Recommended Posts

Kei_ayanami Contributor

Kei_ayanami

Posted
Posted (edited)

Hi guys does anyone here have any experience regarding weight reduction on the 25gt four version?
How much weight can the car lose? is it possible to lose around 100-200kg ?

instead of chasing hp gain and wasting a crap load of money wouldn't it not be better if i just remove useless crap off the car and give it a better power to weight ratio.

could you guys list me down what can be removed and how much kg roughly they are.

The only things I can think off is the following things not sure how many kg each item is as well..

back seats ?

spare tire ?

sound deadening ?

air con ?

what else can be removed that will still keep the car street legal?

Edited by Kei_ayanami
V28VX37 Veteran

V28VX37

Posted
Posted

Back on topic, some GTT weight reduction estimates from here: http://www.skylineowners.com/forum/21-tuning-technical-questions/172043-r34-gtt-weight-reduction-loss.html

5kg Sound Deadening

5kg carpets
20kg race seats (providing you remove front & back, all the seat belts and tensioners then replace them with light side mount rails and fibre/Kevlar shell.
20kg air con gubbins including the matrix behind the dash
7kg sound system – 4 speakers, sterio, amp boxes etc
7kg Hicas removal. Providing you just swap it out for a locking collar
15kg light weight exhaust. Yep, probably – if you lose all the silencers, cat etc
8kg coilovers – depending on what you get, you’ll probably lose 2kg a corner.
You can also lose weight through
- Bonnet
- Boot lid
- Wings
- Wheels & tyres
- Doors
- Strip down the loom
- Bumper braces
- Headlights (if it’s just a daytime track car, you don’t need them)
- Glass (replace with Lexan for the rear ¼, side and rear window,
- Cast manifold for tubular (will save you a bit)
- Replace electronic wing mirrors with static
- Remove electric window motors
Remember you need to fit a cage which will put weight BACK INTO the car, as will corner weighting.
  • Like 2

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      Rb head oil drain dimensions

      By Dose Pipe Sutututu · Posted

      I personally would run 2x from the cam covers into the catch can, 1x sump vent to catch can (would mount this at a low point of the catch can, so it can also act as a drain). I would see if you can run a -12AN down there to improve venting and also draining. The head drain thing, just drain that back to the sump on the other side. Catch can to be vented, unless you plumb or back to the intake.
    • Dose Pipe Sutututu
      Rb head oil drain dimensions

      By Dose Pipe Sutututu · Posted

      Yeah the head "drain" is rather a sump/crank case vent. My catch can stopped filling up after venting the sump to the catch can. I have 4x fittings in mine, which is about 5Ls. 2x cam, 1x sump vent/catch can drain, 1x fitting back to the intake and a massive breather which can be blocked so it's a fully sealed system.
    • Zabuza
      Need AC Compressor for R32

      By Zabuza · Posted

      Ok glad you clarified on the frenchy’s options , I was worried about if my oem hoses would fit the new compressor or not if I just bought the bracket/compressor kit ,  didn’t realize they also sold a larger full conversion kit. Hmm may just go oem in that case then to make it easy only because I plan to sell this car to upgrade to a 32 GTR or 34 GTT.
    • sausagepianist
      V36 2008 Coupe Wiring Differences with Android Screen

      By sausagepianist · Posted

      Right, here's a video of the basic operation at least.  This is what you can expect day to day when you turn the car on and it boots from standby.  The only thing from a media point of view I haven't gotten working is for it to autoplay plexamp when it turns on from standby (it works from cold boot) but that's more of a plexamp problem as it will autoplay other music players.  Also attached is my one stray cable.  It's part of the screen's wiring adapters but there's just nowhere for it to go in my car.  I've just now done a bit of research and found a matching port on a 2010-2014 head unit with BOSE.  Mine has no BOSE so that's that case pretty much closed I think.  Plugging in the Infiniti AC panel basically did nothing for me, so that's a dead end as well.  Next port of call is to mess with this CANBUS module and see what I can find from it.  I found this resource containing the DBC files for a 2010+ G37 : https://github.com/icecube45/Dash_InfinitiG37/blob/master/InfinitiG37.dbc I'll now have something to go from when I try to extract my CANBUS data so I can see if the HVAC Mode, Fan Speed, Temperature, etc. match and also the gear shifter position.  It's a pretty big assumption that it's just mismatched CAN signals but considering all the devices in the CAN network are talking to each other (AC can be fully adjusted just with no info on screen) it might be a safe one.  I will report back WhatsApp Video 2025-02-26 at 12.49.10.mp4
    • sausagepianist
      V36 2008 Coupe Wiring Differences with Android Screen

      By sausagepianist · Posted

      Thanks for that Paul.  Do you think if I posted a picture you'd be able to remember where it went? 
×
×
  • Create New...