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Anti Rollbars

Markit66

Markit66

PCGB Member
Member
Hi all,

I know the topic has been talked about before but
just wondered how everyone has there anti rollbars set.

There are 3 holes on my bars at the front and 3 holes on the back one.

Never have adjusted mine,but as taking the old girl on track i thought i better ask incase my setup was wrong.

Are cup bars thicker than the standard bars that are fitted to my carpet type.?
Thanks chaps,
Mark
 
ARB is only part of a full set up, so hard to say. Find out, how the car handles on track and let us know the rest of your set up data like tyres, camber, ride height, etc..

And, finally, how do you like your car?

Rgds,

Hacki
 
Thanks for the reply Hacki.

The car is fantastic !!.

Just not sure if the roll bars are set as they should be,for a novice track driver or a pro.

Mark
 
mine were both in middle setting,but with some handling issues probably due to diff and tyres,i softened my front to second softest and rear to full hard.

this was great for tight circuit and towards oversteer,was at the ring last weekend and front was lovely but rear felt to uneasy over bumps and nightmare in wet

so going to put rear back to middle setting.as said before move one at a time and work from there,everyones driving stlye is different...they make alot of difference great to be able to adjust so much for a road car
 
Thanks Phil,

My car is on middle one on front and back,maybe never been changed.

Not sure if i should stiffen up front to get understeer for first track day.

Mark
 
This could be good info for the 'hints and tips' section at the top of the 964RS section.

Anyone care to write an easy-to-follow 'how to' here and I'll make it a permanent feature. e.g. Soft versus hard - how to adjust?, up or down is softer or harder?, what effect the different settings might have?, etc...

Obviously with the disclaimer that the effects are dependent on a lot of other parameters - geo, tyres, ride height, driving style, etc.
 
i started a thread a while back about this and was great response from the more experienced trackday regulars and racers..

in what i have learned tyre pressures are most important start point...but are sometimes forgotten and are over or under inflated making everthing else you have done feel wrong, ie adjust rear roll bar then have to much rear pressure...too much oversteer...should be good thread
 
someone should write a bible on roll bar settings.

best is to try gently and adjust to your driving style. Some (e.g. Schumacher) like an oversteery set-up (i.e. soft front; hard rear). others (e.g. Prost) prefers understeery (i.e. hard front; soft rear).

and this is of course given the proverbial "everything else being equal" which they never are. on a tight track, understeery is a nightmare. on a fast, long sweeping curve, oversteery requires confidence.

I once tried the 964 rsr around Spa full hard front and rear. Eau-rouge was a challenge. Blanchimont was taken almost without steering lock from the apex. i quickly changed to more understeer.
 
Used to run full soft on the rear of the Cup until Tony Dron drove it and suggested I back off one notch...........such a difference!!!
 
Would anyone know what the factory setup for the anti-rollbars was for a standard car ?.

Mark.
 
Good question..............whilst the Tech Spec lists all the toe/caster/camber settings etc, against 'Stabiliser' it just says FRONT: 24mm adjustable (5 positions) and REAR: 18mm adjustable (3 positions)................
 
Have never seen a standard setting listed anywhere from the factory - I think the whole point is it's a matter of personal preference. Have just posted a table at http://carrerars.wordpress.com/ which lists the effects of various component changes on oversteer and understeer. Was told years ago to start from the middle position in both and I guess this is logical.

Edited for spilling........[;)]
 
ORIGINAL: Tony

Have never seen a standard setting listed anywhere from the factory - I think the whole point is it's a matter of personal preference. Have just posted a table at http://carrerars.wordpress.com/ which lists the effects of various component changes on oversteer and understeer. Was told years ago to start freom the middle position in both and I guess thisd is logical.
Click to expand...

Can but agree Tony!
 
Good site,interesting reading.

Now know how to make the car understeer.

Not sure if i should make my car understeer for 1st goodwood track day or leave it as it is.


Thanks ,
Mark
 
Leave it as is Martin -at least you'll have a bench mark to work from.....

Ref Tony's notes, mine has ended up as 'common roll bar setting for Spa', one off full stiff at back and full stiff at front.....
 
if the car is new to you, the chances are that your driving style will have more impact on the handling than the setup itself. Being cautious into corners is more likely trigger understeer.

Drive it as it is, until you are comfortable, then think about setup. I did 2 days in mine without changing a thing just to try to understand it. Once you've done all of that, then get an alignment done, once you know the wheels point the right way (literally), then thing about ARBs.

that would be my advice anyway.......

(and thought common theory on RSs was full stiff at front, and soft at the rear - non?)[:-]
 
Yes, but someone's "confident drift" can easily turn into someone else's "nasty bite" [;)][;)]

For example, the RSR on full still at the rear, one off full stiff at the front, through Blanchimont and double left was definitely drifting on slicks. Nothing nasty, just a gentle drift from the rear that required unlocking the steering a bit and keeping a "power on" throttle.

But if this type of behavior--i.e. feeling a gentle drift after the apex in fast curves--is something that is not enjoyed, then best is probably to keep dial-in more understeer in the set-up.

I changed the set-up to medium at the rear and one off full stiff at the front because the car would dance too much for my liking when turning sharp right into Eau-Rouge.

It is worthwhile experimenting a bit.

ORIGINAL: h_____

(and thought common theory on RSs was full stiff at front, and soft at the rear - non?)[:-]
Click to expand...
 
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