914-6 GT fast road/track suspension settings Options

[amallagh]

Hi,
I'm just about to have the suspension set up on my 914-6 GT project and wanted to see if anyone had any advice. I have never done this before (my first 914) and was looking for a fast road/track set up. I think the range of settings people seem to talk about on Toe and Caster is fairly small but camber settings vary wildly depending on what people want to do and type of tyres.
I know the theory about track set up and measuring temperatures across the width of the tyre but this car will spend more time on the road than track (albeit I could be called a spirited road driver!), and tracktime ain't cheap !
Suspension components are :-
FRONT -
Sway-a-way 22mm hollow torsion bars
Weltmeister 22mm sway bar
Bilstein shocks
Weltmeister camber plates
Fuchs 7X15s with Goodyear Eagle GSD3 205/50s
REAR -
Weltmeister 140lb springs or 180lb springs available - need to decide which ones are best to use ?
Weltmeister 16mm sway bar
Koni adjustable shocks (yellow)
Stable Energies rear strut tower camber brace.
Weltmeister chassis and suspension arm stiffening kits
Fuchs 8X15s with Goodyear Eagle GSD3 225/50s
Tyres will be

This is what I was planning to do based on some previous indications:-
FRONT -
Toe in(each wheel)- 10'
Camber- 1 degree negative
Caster- 6 degrees
REAR -
Toe in(each wheel)- 15'
Camber- 1.5 degrees negative

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I think these are the factory settings -
FRONT -
Toe in(combined) 20' +/-10'
Camber- 0 degrees +/-20'
Caster- 6 degrees +/-30'
REAR -
Toe in(each wheel) - 0 degrees +15'
Camber- 30' +/-20' negative
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I would welcome any advice or opinions. If anyone has any advice on initial settings for the rear Koni shocks then that would be a real bonus. All advice gratefully received and without prejudice.
Andrew

[amallagh]

Thanks for the advice.
Is 15' toe in on each wheel at the rear enough ?
I will check again to make sure the 22mm hollow Sway Away torsion bars are fitted. The guy I bought the car off said they were fitted but I havn't checked.
Seemsto be a fairly common opinion that my front would be too stiff or my rear too soft with my current set up.

I notice no one has made any comments about the camber settings- To much ? Too little ?

Are the hollow 22mm Sway Away torsion bars as stiff as solid ones ?
I understand that the majority of the torsional stiffness is in the out edge but I would have assumed that hollow ones were fractionally less stiff than equivalently sized solid ones ?
Just checked the Sway Away website and the 22mm ones are their 'mid range' ones. They do 21mm, 22mm & 23mm. They do the same thicknesses in solid bars as well. It was on this basis that I thought the 22mm ones would be OK with the 180lb springs on the rear. I am a 914 virgin so any further comments/advice gratefully received.

Many thanks
Andrew

[grantsfo]

Thanks for the advice.
Is 15' toe in on each wheel at the rear enough ?
I will check again to make sure the 22mm hollow Sway Away torsion bars are fitted. The guy I bought the car off said they were fitted but I havn't checked.
Seemsto be a fairly common opinion that my front would be too stiff or my rear too soft with my current set up.

I notice no one has made any comments about the camber settings- To much ? Too little ?

Are the hollow 22mm Sway Away torsion bars as stiff as solid ones ?
I understand that the majority of the torsional stiffness is in the out edge but I would have assumed that hollow ones were fractionally less stiff than equivalently sized solid ones ?
Just checked the Sway Away website and the 22mm ones are their 'mid range' ones. They do 21mm, 22mm & 23mm. They do the same thicknesses in solid bars as well. It was on this basis that I thought the 22mm ones would be OK with the 180lb springs on the rear. I am a 914 virgin so any further comments/advice gratefully received.

Many thanks
Andrew

Camber is pretty dependent on how you are going to use the car and the type of tires you will be using on the track. I run roughly -2.5 to -2.75 and some say thats not enough. In my opinion anything under -2 with DOT R tires isnt enough - especially in the front.