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Gtr Ride Height And Other Q's

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predator Grand Master

predator

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Just starting on the long path of modifying my R32 GTR to improve the handling..

At the moment, have measured the wheel to guard and I seem to have 335mm on the front, and 345mm on the rear.. From reading of previous threads it appears as if 345mm is fairly recommended for the rear, but my front is probably too low. I know SK used to recommend around 355mm at the front, but that seems a little high front/rear to me? I used to run 350mm front and rear on my gts-t and that was a very nice I found, but realise the GTR weighs a fair bit more on the front end.

My main complaint at the moment is that it is a little bouncy.. not completely stuffed bouncy (AFIAK), but seems the fronts especially seem a little soft. I'm pretty used to harsh spring rates which I didn't mind actually on the street. Suspension are TEIN, although pretty old.. has height adjust but doesn't seem to have any damper adjust - anybody know what model these may be? Stickers are worn off.

When I jack the car up, from the photo below, you can see the spring is non-captive by about 5mm. I am thinking that because the fronts have possibly been lowered excessively, this is not compressing the springs to their optimal rate, hence giving the floaty sensation through the front? The springs are fairly captive on the ground, but I've never had springs non-captive like that when jacked up, so I'm thinking may be time to get the old c-spanners out.

Any recommendations would be great.

post-1332-1242807174_thumb.jpg

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Waza_GTR Explorer

Waza_GTR

Posted
Posted (edited)
Just starting on the long path of modifying my R32 GTR to improve the handling..

At the moment, have measured the wheel to guard and I seem to have 335mm on the front, and 345mm on the rear.. From reading of previous threads it appears as if 345mm is fairly recommended for the rear, but my front is probably too low. I know SK used to recommend around 355mm at the front, but that seems a little high front/rear to me? I used to run 350mm front and rear on my gts-t and that was a very nice I found, but realise the GTR weighs a fair bit more on the front end.

My main complaint at the moment is that it is a little bouncy.. not completely stuffed bouncy (AFIAK), but seems the fronts especially seem a little soft. I'm pretty used to harsh spring rates which I didn't mind actually on the street. Suspension are TEIN, although pretty old.. has height adjust but doesn't seem to have any damper adjust - anybody know what model these may be? Stickers are worn off.

When I jack the car up, from the photo below, you can see the spring is non-captive by about 5mm. I am thinking that because the fronts have possibly been lowered excessively, this is not compressing the springs to their optimal rate, hence giving the floaty sensation through the front? The springs are fairly captive on the ground, but I've never had springs non-captive like that when jacked up, so I'm thinking may be time to get the old c-spanners out.

Any recommendations would be great.

Rear is OK go to 355 on the front

Edited by Waza_GTR
MrStabby Grand Master

MrStabby

Posted
Posted

I had 335fr 345rr and moved to 355fr 345rr - i like it a LOT better. Only got a few laps in at Wakefield before the rear turbo let go, but i'm sure it will be significantly faster. When i asked about height the gurus said make sure you have 10mm higher at the front (most important) and then that 355 front was optimal.

I also got my car corner weighted (and aligned of course). I figure do it once do it properly, but if your current suspension is not up to standard it might be worth getting that sorted before the corner weighting.

predator Grand Master

predator

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Thanks guys, will try 355 front and see how it feels. If i still don't think its much chop, will start considering shock/spring changes.

Ronin: haha.. you see I got abducted by these aliens from the planet "work", they subjected me to strange and evil things for many months :P but I am back now.. Was even considering not owning a skyline at all, but thankfully I came to my senses :)

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