| [ Total Views: 1346 | Total Replies: 8 | Thread Id: 84650 ] |
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 sander288
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| posted on July 6th, 2010 at 01:27 PM |
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Z-bars ??
Anyone had much experience with Z-bars, more importantly can z bars be retro-fitted to earlier swingers?
I've seen the just kampers race car has a adjustable z-bar and read on some other forums that Z-bars are the most ideal addition to a swing axle.
I've been down and seen Mr Mackie and loved his set-up with the compensating spring and cable tuck but thought that the z bar would be more ideal and
lighter than adding both... (do you have any photos greg?)
I'd really appreciate peoples feedback on this as it is easy to become confused (maybe just me???)
http://www.justkampers.com/blog/view/just_beetles_goes_touring_car_racing
http://www.shoptalkforums.com/viewtopic.php?t=122651
http://www.shoptalkforums.com/viewtopic.php?t=122567
cheers
Shaun
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sander288
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| posted on July 11th, 2010 at 06:46 PM |
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no one has any experience with Z-bars? how about fitting one to a car?
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HappyDaze
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| posted on July 11th, 2010 at 07:15 PM |
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When I was Vee racing, a few tried Z bars. They all went back to leaf type compensating springs
There could be much discussion about the whole swing-axle system - too much to do here I recon. We could go over this sometime, when we both have the time, Shaun - I would be happy to pass on a few
'tips' and suggestions.
Cheers, Greg
I'd rather wear a Beetle out by racing it than by polishing it!
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Newt
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| posted on July 24th, 2010 at 12:33 AM |
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Many years ago I fitted a type 3 Z bar to a 62 Beatle by making up my own pivot brackets out of a bit of tube welded to a bit of plate at 90 degrees
and then bolted the plate in the appropriate spot somewhere above the whole where the shocky bolt goes through (as diagonally appropriate). I used a
bit of rubber hose between the cross bar and the tube (which oddly enough didnt seem to wear all that much - come to think of it, it is still on the
car 10 years later).
From memory, the Z arms ended up being a bit closer together.
The result seemed reasonable, increasing the load on the inside wheel, though I always felt it tended to increase body roll.
Newt
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HappyDaze
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| posted on July 24th, 2010 at 09:14 AM |
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If it is set up correctly the compensating spring (that's what a Z bar is) will increase body roll slightly, if nothing else is changed. Normally a
stiffer front anti-roll bar is used in conjunction with a compensating spring, and - ideally- softer rear torsion bars.
Get the whole lot right, and the outside rear wheel camber will 'go slightly negative' on hard cornering. This does not happen in the case of trailing arms, in fact the opposite occurs. Expecting a bit of flack over this.
Cheers, Greg
I'd rather wear a Beetle out by racing it than by polishing it!
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Craig Torrens
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| posted on July 24th, 2010 at 12:23 PM |
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why would you get flack ?
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HappyDaze
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| posted on July 24th, 2010 at 05:20 PM |
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For saying positive things about swing axles.
I'd rather wear a Beetle out by racing it than by polishing it!
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sander288
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| posted on July 24th, 2010 at 05:25 PM |
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Hahaha, thanks greg, I am now a big swing ale fan now, you should put some pictures of your model swing axle thing... Working on the spring for the
back, roll cage first though (monday... woohoo!:tu
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sander288
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| posted on July 24th, 2010 at 05:25 PM |
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swing ale, the best brew..... lets try swing axle! 
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