Reply With QuoteSo do you mean for example use the soft hole on one side and the medium hole on the other in the hope of getting an overall/common setting that's an average between the two?
Volkswagenist
Yep, anti-roll bars work as a torsion bar hence sliders are used for infinite adjustment in race cars to vary the lever length. That's why I was wondering if anyone had different mount points on the 2 sides to provide an intermediate stiffness via the difference in leverage.
The UR suspended style ARB still works as a torsion bar - it simply relies on the torsion beam axle (which is a really big anti-roll bar) providing all the location.
If you're finding the Whiteline rear ARB too stiff at it's softest, I'd suggest either increasing the front roll stiffness, softer rear springs or else ditching the rear ARB. I didn't run a rear ARB until I also had a stiffer front ARB installed as I wanted to maintain the balance that my car had with just the stock front ARB
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Volkswagenist
So do you mean for example use the soft hole on one side and the medium hole on the other in the hope of getting an overall/common setting that's an average between the two?
Volkswagenist
Yep. The leverage difference would make one side a bit softer than the other but given the small difference in lever length, it shouldn't be too unbalanced (and may be an advantage if all the fast corners are in one direction as it is on some tracks)Originally Posted by sambb
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Volkswagenist
May actually be advantageous depending on the direction of the circuit. Could aid in turn-in and/or exit.
Track Car: 06 Polo GTI Red Devil mkII
Daily: 2010 VW Jetta Highline
Gone but not forgotten: 08 Polo GTI
** All information I provide is probably incorrect until validated by someone else **
Volkswagenist
Nascar style eh? You know what you probably won't even feel much of a difference going to the narrows. If you go really deep and turned in under brakes, that would put lateral forces on the rears whilst they are slightly unweighted too which could be interesting. But otherwise it'll probably go really well.
Volkswagenist
That's why I stated fast corners as for those, I want stability (I need some margin if I pike out and lift off more than I should).
For slow turns, I agree, you want a twitchy car to the point where you struggle to keep it straight when under really heavy (semi-slicks to the point of lockup) so that you can use it to get the car to turn in and not plough straight while still deep ender brakes. My PoD currently does this and using this is where I have set PB's this year vs the plateau that I have been over the previous year. In this situation, I feel that I would definitely notice that the rears are narrower as I would not be able to correct the car and would be turned around.
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Volkswagenist
Yeah I see your train of thought then. Its a difficult one. If you were going to increase front roll stiffness, was it going to be with springs or ARB? Thinking that if you do stiffen the front you'd probably want to do it with springs to minimise nose dive under brakes which unweights the rears maybe... a heap of work to get there though. I still think step 1 would be to turn up with your rear bar in place but disconnected. That way you can get used to the narrow rears with a safer setup. Then you could easily connect up the bar and have another go once your'e tuned in a bit more.
Volkswagenist
Sounds reasonable but I'm tempted to stiffen the front before I head out next time as it's easier to adjust the rear when at the track. I then have the option of 4 rear settings. Have to think on this.
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Volkswagenist
you're far more knowledgeable than i am when it comes to this stuff, but i had patens re002's on the back, and (IMO) superior 595 RSR's on the front. that extra grip, i feel, helped counter the weight of the engine when turning in/ driving aggressively on drive days.
i say go for it - the pog is a forgiving car to drive, and i don't think it will have any negative impact (unlike the clio, in which i'd basically be asking for suicide if i did this).
Volkswagenist
You don't remember the video of my spin at turn 1 at Phillip Island or the crash at Lucky Heights? Fast corners give far less leeway than slow ones.
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