Spring Rates With Bilstein Shocks

[djr81]

That is a bit harsh, Baron!

I was trying to figure out if the coilover conversion uses the stepped grooves already in the damper or it is is sleeved to allow a threaded arrangement as is traditional with coil over stuff.

[r33_racer]

the threaded sleeve just slips down to the circlip and sits on it and thats it...the other bases and seats just go over all that. Very simple.

[Sydneykid]

Roy,

I put my R on the scales at Wanneroo. With me in it & a full tank of juice the numbers were:

Front 906kg.

Rear 687 kg.

Total 1593kg.

So in perecentage terms it works out to be 57/43.

Now I weigh 100kg, a tank of petrol is about 50, so there is still a rather eye watering 1440kg of Nissan to lug around. I didn't do the corners one by one, however.

Ride height won't affect the static weight distribution, but it will affect the wheel loadings when the car pitches under brakes.

The usual GTR weight distributions quoted are 62% front and 38% rear, that's no driver and limited fuel. Corrected for that the above looks like;

-----------------------Fuel-------Driver

Front-------906---------------------20----------886---------61%

Rear-------687---------50----------80----------557---------39%

Total-------1593--------50---------100---------1443------- 100%

Pretty close.

Cheers

[Sydneykid]

i always found the big hitch was the pitch under brakes

A little anti dive in the front suspension geometry fixes that.

cheers

[djr81]

The usual GTR weight distributions quoted are 62% front and 38% rear, that's no driver and limited fuel. Corrected for that the above looks like;

-----------------------Fuel-------Driver

Front-------906---------------------20----------886---------61%

Rear-------687---------50----------80----------557---------39%

Total-------1593--------50---------100---------1443------- 100%

Pretty close.

Cheers

Um I think you got the weight distibution for the driver back to front - or atleast it should be closer to 50 - 50. Which makes it a bit worse than 61/39! This on top of the fact that I have had some work done to try & make things a little better.

[djr81]

No problem, I have done quite a few conversions to coil overs for the Skyline guys who do a bit more circuit work and have the tyres to take advantage of the higher spring rates. Basically the conversion consists of;

2 x Front Main Springs

2 x Rear Main Springs

2 x Rear helper/tender springs

4 x Coil over conversion kits for the Bilsteins

You have 2 choices in springs, Eibach (the best) or Whiteline, pretty damn good, made in Europe, cold wound on a hydraulic coil winding machine.

The full conversion is $980 using Eibach springs and $790 using Whiteline springs, that includes delivery as usual.

The valving in the Group Buy R32GTR Bilsteins will handle up to 310 lbs/inch (5.5 kg/mm) on the front, which is around 40% more than what you currently have. The rear Bilsteins will handle up to 260 lbs/inch (4.5 kg/mm) which is around 25% more than what you currently have. The most common upgrade for the track day guys is 275/225 which works very well with the usual R type tyres (RE55, A048R, R888, D01 etc)

R33GTR Bilsteins will handle slightly more spring rate, R32/R33GTST and R34GTT slightly less.

The conversion is simple, most definitely DIY and should take less than 2 hours if you know your way around your car.

Delivery is pretty much overnight as I have most items in stock, Eibach occasionally run out of some spring rates though.

Obviously I can revalve the Group Buy Bilsteins if you are running a full slick that requires a higher spring rate.

PM me for more details.

cheers

SK, I tried to PM you but your inbox is full (has been for some time). Email didn't work either.

Anyone have any suggestions as to how I can actually purchase this stuff?