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Suspension set up again.

dangerous_daveo
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dangerous_daveo Grand Master

dangerous_daveo

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Ok, car is going in for the wheel alinement / changing settings on tuesday.

Throughout my other topics we have worked out...

Small amount of camber, say 1*

As much castor as posible say 7-8*

And just a tad of toe in.

But, if this doesnt help my turns, what the hell will?

I was told today by the suspension joint, that my problem could be not enough weight transfer over the front wheels. Their susgestion of fixing this was change to a lighter front spring. My question is if we say lower the front, and or raise the rear of the car, would this potentially help this? Or other susgestions.

I also know my front tyres arent the best, this obviously isnt helping the problem.

BTW, atm its bad for understeer. The car is still rather stiff, has the 2way diff, and on a corner of about 80kmh, if I push it a bit, the rear stays stuck, and the front just does not turn.

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Duncan Grand Master

Duncan

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Interesting, definately the diff won't be helping. Ideally for handling (not the drift bastardised version of handling) you want a 1 or 1.5 way diff so that under brakes the inside wheel is not locking up to the outside wheel.

Do you have uprated anti roll bars? they can give you more front end grip (rear roll bar)

Which tyres and which size are you running on the front? A lot of skyline owners seem to think it is an oversteerer....no way....it is pretty balanced but ultimately an understeerer.

Weight transfer really only helps under brakes to keep plenty of weight over the wheels with the big brakes (front)

dangerous_daveo Grand Master

dangerous_daveo

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The Kumo esticita or whatever they are ones. 17/215/45s. Front.

Then the rear is GIIIs 17/225/45. Rear.

350lb front springs, 200lb rears.

And, no aftermarket sway bars, the car is already pretty tight with that, just its a lot of oversteer.

I also have spacers on, only because the wheels wont clear the brakes, and well, it came that way from Japan.

It really is a strange one. Im thinking there might be more to do with it, such as the bloke the rebuilt the shocks did something strange with the faster bump and rebound settings (if there is such a thing on a road going coilover).

BHDave Grand Master

BHDave

Posted
Posted
Everyone one seems to have the same advice with anything on my car...  "my air con doesnt work"

"oh must be the diff, I'll take it off your hands!"

I dont belive you! :)

You're no fun.

But seriously, ask too much boost what a difference removing the 2 way in his cef made to his steering.

dangerous_daveo Grand Master

dangerous_daveo

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You're no fun.

But seriously, ask too much boost what a difference removing the 2 way in his cef made to his steering.

I know the 2way isnt helping, but I just dont think its the underlying problem, and a wheel alinement is a hell of a lot cheaper than trying to sell a 2way and find a 1.5way.

dangerous_daveo Grand Master

dangerous_daveo

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where are you getting your alignment done mate??? I need one but no idea where to go in Brisbane:p Thanks

Im going to TSR only because of a stuffed rear shock, and yeah...

Other wise Id be going to accurate suspension in Timms Court. They also have the balancing scales there. But from what I have heard from others you really have to tell them what you want. Not sure tho, havent been there as yet.

Both are round Springwood/Slacks Creek area.

Sydneykid Grand Master

Sydneykid

Posted
Posted
Ok, car is going in for the wheel alinement / changing settings on tuesday.

Throughout my other topics we have worked out...

Small amount of camber, say 1*

As much castor as posible say 7-8*

And just a tad of toe in.

But, if this doesnt help my turns, what the hell will?

I was told today by the suspension joint, that my problem could be not enough weight transfer over the front wheels.  Their susgestion of fixing this was change to a lighter front spring.  My question is if we say lower the front, and or raise the rear of the car, would this potentially help this?  Or other susgestions.

I also know my front tyres arent the best, this obviously isnt helping the problem.

BTW, atm its bad for understeer.  The car is still rather stiff, has the 2way diff, and on a corner of about 80kmh, if

I push it a bit, the rear stays stuck, and the front just does not turn.

I would change the "just a tad of toe in" to "just a tad of toe out". After you have had the wheel alignment done then tell us what it handles like.

Personally I would swap the tyres around and see exactly how much effect they are having.:D

Sydneykid Grand Master

Sydneykid

Posted
Posted
Its already got toe out, and Im fighting with it constanly on the highway.

If that's the case then either you have too much toe out (just a "tad" remember) or there is something else wrong. I have never seen up to 3mm toe out (that's each side) cause any issues on the highway.

And unfortunatly I cant swap the tyres...  the sizes are just too different.

How much is "too different"? I swap 255/40/17 and 225/50/16 around all the time.

:(

dangerous_daveo Grand Master

dangerous_daveo

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Ok, new fronts are going on, one has worn really badly. So they shall go on thursday, then wheel alinement will get done the week after now because off easter holidays.

I'll update it again then.

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