Front & rear camber settings

[vitesse]

Looking for recommendations for Camber settings for the 924S-for trackday ,sprint use but not too extreme as car used as a road car.
Has Spax lowering springs at front (-30mm) & lowered to max on the eccentrics at the rear.
Have fitted 26.9mm Turbo front antiroll bar with new 924S rubbers & fitting rear turbo bar today--shockers are standard at present -tyres are 195/60-15's all round on 924 turbo wheels.

Have heard that front could be upto 2 degs negative.

NB no power steering.

 

[George Elliott]

I dont know, but if you ask Chris at Centre Gravity - Atherstone, you would get a steer on the appropriate settings.

What ever any one advises, some-one will advise different [8|]

good luck
george
944t

 

[vitesse]

Thanks George will give him a go.

cheers,

Colin.

 

[CarreraRSR]

My car was set up with

Front left -1 3/4 deg. Front right -1 1/4 deg,
Rear left - 1/2 deg. Rear right -1/4 deg,

Front toe + 1/2"
Rear toe should be +1/2 deg but couldn't free up the bolts

My car is running circa 65mm lower than stock ride height if that has any bearing on the above or circa 95mm front, 105mm rear measuring floor to lowest sill flange edges. Balance was 50/50 all round

Question - during corner weighting my car had an 'all up weight' of 1146kgs. Is that inclusive of driver weight? Just noticed this in looking at the sheets

This was 2 years ago and a lot has happened to my car since. Will be set up again in the new year once its back on the road again

 

[vitesse]

Thanks,Steven-are the LH & RH settings different because racetracks go clockwise or what.
Also having never taken the rear suspension apart,I have yet to understand how the small eccentric bolt (or extended stud if fitting an antiroll bar) actually alters the rear wheel axle camber-unless the the mounting at the hub is tapered & the swing arm plate is moved against a taper when you rotate the eccentric-it might be me being thick! Also how do you adjust toe?

 

[CarreraRSR]

I had no idea there were LHS/RHS differences until I re read the cornerweight/geo sheet handed to me by EMC. I hope there is a valid reason!! Whether there is or isn't it all needs redoing next Spring anyway.

 

[Eldavo]

ORIGINAL: CarreraRSR

I had no idea there were LHS/RHS differences until I re read the cornerweight/geo sheet handed to me by EMC. I hope there is a valid reason!! Whether there is or isn't it all needs redoing next Spring anyway.

Putting this delicately . . . Have the years been kind to your waistline?

In a stripped out car perhaps the driver's weight affects things?

 

[CarreraRSR]

Happy to admit it would be far cheaper to loose 40kgs from the drivers seat than the rest of the car!!

 

[Jonny944CS]

ORIGINAL: VITESSE

I have yet to understand how the small eccentric bolt (or extended stud if fitting an antiroll bar) actually alters the rear wheel axle camber-unless the the mounting at the hub is tapered & the swing arm plate is moved against a taper when you rotate the eccentric-it might be me being thick! Also how do you adjust toe?

Here you go:

http://www.porscheclubgbforum.com/tm.asp?m=622193

 

[vitesse]

Thanks guy-didn't get the rear antiroll bar fitted as couldn't get the plain bolts to move at my local MOT place who let me use their new ramp-we decided not to go any farther to avoid getting stuck with it on the ramp-but will re-visit at a later date to apply heat /etc & ensure all the other bolts can be moved as well.
However had the front end done at the Balljoint Centre here in Bootle -chose -1.5 deg neg camber both sides-offside castor reset to 2 deg 11min (nearside OK at 2deg 27 min) & toe at 0 deg 05min ea side ie total toe 10min.

Rear camber left set at -1 38min LHS & -1 20 min RHS with total toe at 0 33min
The rear settings leave it steering neutral & are both slightly high but apparently to any detriment to handling.

These guys know what they are doing -they set up Adrian Kermodes cars (used to own Chester OPC) .
Will advise how it handles on track after Oulton next week, but already much better on the road.

The existing front settings are the result of letting a local College fit my replacement Spax front springs-I thought they had reset the front after that[&o]

Something I had not known before but have always wondered why these places seem to leave the castor settings with LHS in the green & RHS in the red sector of the diagram printed by the machine is that cars are designed this way to help with road camber--RH drive countries have them set the opposite!