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R33/34gtrcircuit Bilstein/whiteline Kit

Sydneykid

By Sydneykid,
in Group Buys

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Sydneykid Grand Master

Sydneykid

Posted
Posted (edited)

I have finished the engineering on the Bilstein/Whiteline suspension kit for R33/34GTR's that are designed to be used on the circuit frequently. They are suitable to drive to and from the circuit and would perform quite well in tarmac rallies, targas etc. The kit is not really designed for every day use, the spring and bar rates plus the alignment settings are not really suitable for all road conditions.

The shock and spring units are genuine Bilstein with both height and rate adjustment. Many shocks only adjust the rebound damping, these adjust both bump and rebound with a single knob. The front shocks have the adjuster on the top so it is easily accesible from the engine bay. The rear shocks have the adjuster at the bottom as the parcel shelf and rear bulkhead in R33/34's prevent access to top adjusters.

Bilstein_B16_Shock_Spring.jpg

The adjustable stabiliser bars, caster, camber and rear subframe bushes are from Whiteline.

KCA332.jpg

KCA347.jpg

The alignment settings have been arrived at from extensive testing sessions at Eastern Creek, Oran Park and Wakefield Park. The GTR was fitted with Yokohama A032R's in 245/45/17 and A048R's in 265/35/18, the settings did not vary much between the 2 sizes. Compared to the same GTR fitted with standard suspension and the same tyres, the lap times were 6 seconds per lap faster at Eastern Creek, 4.5 seconds faster at Opan Park and 4 seconds faster at Wakefield Park. I can confidently the settings are a good starting point for anyone running R compound tyres on any circuit in Australia. Of course faster lap times will result from further fine tuning for the track and weather conditons on the day.

Watch this space

PS; if you drive your GTR everyday and only do the ocasional track day, this is not the kit for you. You need http://www.skylinesaustralia.com/forums/in...showtopic=87826

Edited by Sydneykid
sparkmanv11 Enthusiast

sparkmanv11

Posted
Posted

Gary, these shocks look like the Bilstien PSS9 shocks fitted to my R33 GTR. I can remember you saying at the time that u thought the spring rates were a bit high for the car. Acting on your advice I spoke to Heasmens about changing the springs. I was told that the the spring was specifically designed for the shock "some special taper winding" and that there were no bilstien alternate rate springs for it. I would be interested in knowing the rates for your set Consequently I am left with

a. Putting up with to harsher springs particarly in the rear I only run R spec rubber and is not a daily driver

b. Buying an aftermarket spring for the shock with possible reduced quality and warranty issues

c. Almost buying your first road package for a R33

d. Selling the ones I was talked into buying and purchasing your track R33 track package.

Help

Sydneykid Grand Master

Sydneykid

Posted
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Posted
Gary, these shocks look like the Bilstien PSS9 shocks fitted to my R33 GTR. I can remember you saying at the time that u thought the spring rates were a bit high for the car. Acting on your advice I spoke to Heasmens about changing the springs. I was told that the the spring was specifically designed for the shock "some special taper winding"  and that there were no bilstien alternate rate springs for it. I would be interested in knowing the rates for your set Consequently I am left with

a. Putting up with to harsher springs particarly in the rear I only run R spec rubber and is not a daily driver

b. Buying an aftermarket spring for the shock with possible reduced quality and warranty issues

c. Almost buying your first road package for a R33

d. Selling the ones I was talked into buying and purchasing  your track R33 track package.

Help

These kits are mostly sold in Japan, so they have stupid Japanese spring rates to suit that market's demands. I have specified the spring rates for this Group Buy, they are NOT the off the shelf rates from Bilstein.

Pop over to the suspension thread (http://www.skylinesaustralia.com/forums/index.php?showtopic=79157) and post up the spring dimensions and I will work out the spring rates for you.

From what I can tell the Bilstein springs are made by Eibach in Germany or Tevemen in Holland, Bilstein do not have a cold spring winding machine themselves. I can't see any problems arrising from you using Eibachs of a more suitable (Australian) rate. The adjusters on the Bilsteins easily have a big enough window to handle the lower spring rate. PM me for more details.

:P Cheers :D

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