Autocrossing a Looker?
andrewlandon67:
Quote from: brewsy on February 12, 2020, 21:24:10 pm
Andrew,
Take a look at this thread:
https://shoptalkforums.com/viewtopic.php?t=127619
FJCamper seems to really know his shit.....
Its a very good read in my opinion...
BTW I subscribe to the 'if your car came with a Z bar then keep it' school of thought.
As someone earlier said its simply a spring assist ie it 'firms up' the suspension when the rear end goes down. The idea is that swing axles work best with softer spring rates but thats no good if tou have a car that takes passengers and luggage.
On Zbar cars the main torsion bar is supposed to be a touch thinner (lower spring rate) but the Zbar comes into play as a secondary torsion bar and stiffens it up to 'normal' levels.
If you want it to act like an antiroll bar then you need to change where it attaches so that both sides are either in front (or behind) the axles..
The Z bar definitely does make a difference, my car's rear definitely feels a little more loose without it, but I feel like for performance driving the camber compensator might do a better job of regulating how much the wheels tuck in during hard cornering, as opposed to just adding more "spring" like a Z bar. I also need to consider that I'm using the stock '67 torsion bars with '66 and earlier length axles (since I can't find '67 length HD axles for under $300), and I'm not sure what the effect would be with a Z bar on short axles.
volkskris:
A Z-bar and a camber compensator do the same job in a different way.
The Z-bar needs to have it's links shortened to work instantly.
Bryan67:
Quote from: andrewlandon67 on February 10, 2020, 19:53:40 pm
Quote from: Bryan67 on February 10, 2020, 19:34:59 pm
The Z bar is not a sway bar. It`s actually and overload helper spring. So I would leave it off, and put a sway bar or a camber compensator on the back to go with a front sway bar.
I've really been considering a camber compensator as well, though I've heard nobody makes one that fits with HD side covers. What other kind of sway bars do you know of for swingaxle rear ends?
My old green 64 had Koni shocks and front and rear Addco? sway bars. I never autocrossed it, but it handle freeway on ramps way better then any other Bug I`ve owned.
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