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Several people have had problems mounting swaybars due to the fact that Type1 bars are designed to travel a bit in front of the lower front beam.  This interferes with where some replica manufacturers attach their bumper brackets.  Some people have dealt with the problem by cutting out portions of their bumper brackets and welding in reenforcements to accomodate the swaybar travel. 

 

On http://www.shoptalkforums.com/viewtopic.php?f=51&t=127619 (a fascinating thread) FJ Camper posted the following concerning a Ghia:

 

 

Front Sway Bars

As we mentioned before, Porsche did not start using a front bar until late in 1954, followed shortly by the Ghia. The Bug got one a year later.

The big difference was in the thickness of the Porsche and VW bars, and how they were mounted. Porsche used a 16mm front bar secured at its ends for a very strong mount. VW clamped a very light bar to the lower front trailing arms. This simple clamping reduced the effectiveness of the bar, and allowed for it to sometimes work loose.

You can fabricate mounts to hold your front bar in place. This mounting arrangement also dramatically increases the efficiency of the bar, making it function like a much stiffer one.
VW Swaybar illustration

"A" represents the stock mount. "B" shows improvised additional mounts.

 

It looks like FJCamper has pushed the stock swaybar back approximately an inch to pivot directly under the front beam (like real 356 swaybars did) and has then attached it to the beam at the "B" points with a C bracket, bushing, and a U-bolt.  At "A", it looks like one bushing and clamp has been eliminated on each of the trailing arms. 

 

Swaybars are curved outwards to match the angle of the lower trailing arms but I wonder if the offset were talking about here would make that big of a difference.  It sure seems simple enough - can anyone think of a reason why it wouldn't work or might cause a very bad day?     

 

 

 

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  • VW Swaybar illustration
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Using a single stock bushing arrangement at A isn't good because the swaybar now wants to push and pull against those points in the fore and aft direction. Those bushings should be replaced with drop links like the 356 used to avoid binding the suspension. The A bushings will wear to the point where they won't bind, but that means your suspension performance is not consistent over time. This suspension binding part of why it would feel "stiffer". Another is that this new arrangement effectively shortens the arm length of the swaybar. And finally, it reduces the amount of twist lost to bushing deflection.

 

The B mounts should be moved farther outboard to reduce the load on the mounts. As far apart on the straight section of the bar as practical.

 

FJC sometimes overextends himself trying to explain the why of things. His practical experience is great and I would take his advice if it's based on that, but I've seen several times where his technical explanations and/or illustrations are incorrect and would lead to the wrong conclusions. Not really the case with this simple example though.

Last edited by justinh

Yeah, I wasn't too thrilled with FJ's post, either, and the geometry he showed in his diagram simply wouldn't work because, left to our only example (a VW pan and our existing bar) many of us would still end up mounting the bar forward of the torsion tube.  

 

And I just happen to have a picture of a 1955 356A Speedster front end, for all of you just wondering how different YOUR car is from the real thing (the answer is......a lot!)  As they say, a picture's worth a thousand words.......  Also, notice why the REAL Porsche doesn't need those silly beam stiffeners those of us with VW pans have to add to make our cars seem more real!

 

1955 356A front end

Last edited by Gordon Nichols

Justinh and Gordon - what you say makes sense.  Thanks for the explanation! 

 

I've installed a stock swaybar but it hits my bumper brackets when the car's up on jackstands (I installed the bar while the car was up on ramps).  It's probably not the safest arrangement.  Fortunately, although I don't know squat about welding, I have a friend who's willing to do the necessary cutting and welding of the brackets to allow for full travel.   

 

 

OK, here you go, comparing a T-1 356 (Pre-A thru early 1956) to a T-2 356A (later 1956 thru 1960)

 

<colgroup><col width="477" /><col width="472" /></colgroup>

Comparisons - T-1 (356)Comparisons - T2 (356A)
  
FRONT SUSPENSIONFRONT SUSPENSION
Front height adjustersFront height adjusters
VW front beam - center anchor is weldedPorsche design - "Avis"-style height adjusters 
  
Torsion BarsTorsion Bars
6 leaves top, 5 leaves bottom8 leaves top and bottom
  
Trailing ArmsTrailing Arms
VW TypePorsche Design - sway bar mount welded to lower suspension arm
  
Anti-roll barAnti-roll Bar
14mm 15mm
  
Steering BoxSteering Box
VW Steering BoxPorsche Steering Box
  
Steering DampenerSteering Dampener
NoneStabilus 20 X 150
  
REAR SUSPENSIONREAR SUSPENSION
Rear Torsion Tube SuspensionRear Torsion Tube Suspension
VW - 25mm X 555mm longVW - 24mm X 630mm Long
  
Rear Trailing ArmsRear Trailing Arms
VW Porsche with oval holes for alignment adjustment
  
Torsion Bar End CapsTorsion Bar End Caps
VW StylePorsche design to fit longer torsion bar
  
Axle Tube Bearing HousingAxle Tube Bearing Housing
VWModified mounting arm for shock absorber
  
Upper Rear Shock Mounts Upper Rear Shock Mounts 
Mounts are staggared such that the shock is angledMounts are aligned such that the shock goes straight up and down

 

I've got a lot more comparo info on 356's per year, but mostly outside trim and interior appointments.  That's why I always chuckle to myself when I see a replica with beehive tail lights and a 3-gauge dash cluster.  To the original owner, that car simply screams "I'M A REPLICA!!!!"

 

Here's that pic of the front sway bar mounts on a 356A.  They mounted it slightly behind the CL of the torsion bar tube, but have the dog-bone end mounts to allow it to travel.  Also notice that the pan-to-torsion tube mounts are TOTALLY different than on the VW pans that we have (and a lot wider to boot), and quite a bit different from the tube frame cars, too:

 

356A sway bar mounts

Last edited by Gordon Nichols
I have a "standard height" wide body from Kirk, and I used front & rear sway bars from CIP1.COM.  Here is what I used in the front;  http://www2.cip1.com/ProductDe...uctCode=ACC-C10-4042   and it will fit without bumping into my nerf bar mounts.
 
For a 64 VW chassis, you would need this unit http://www2.cip1.com/ProductDe...Code=VWC-113-411-309
 
The heavy duty urethane mounts are actually easier to install, they are on the same page of parts via either of the two links above.  I used the word "easier", but you still have to be inventive to get the bracket to install far enough to get the nut inserted !
 
Originally Posted by TUB4STU:

Any recommendations on sway bar & CC for 64 VW pan Vintage Speedster built in 2009. I have read previous thread where brackets had to be cut on some and not others. Do you only have to modify brackets if car is lowered? Mine is stock how it came from Kirk.

Thanks!

Originally Posted by TerryLipford:
My apologies, I sent the wrong link.  I bought this one http://www2.cip1.com/ProductDe...Code=VWC-131-411-309 and then purchased the heavy duty urethane mounts & clamps to go with it.
 
Originally Posted by ALB:

Terry- The link you provided is to a super beetle sway bar; are you saying you don't have a beetle beam underneath your car?

And I thought you had done something special, there!

Tub4Stu -

 

Terry's right about which sway bar you want for a '64 front end.  '64 Beetles have a link pin front end but beetles manufactured a year or two later (excluding super beetles) have ball joints.   

 

Image may have been reduced in size. Click image to view fullscreen.

This is relevant because the stock sway bars for both link pin and ball joint beetles look similar but the ball joint sway bars have a little kink in the arms.  

 

Link pin sway bars will not work on ball joint suspensions (ask me how I know*) but I cannot say for certain that a ball joint sway bar would not work with a link pin suspension.

 

 

*As a result of that mistake, I have a stock link pin sway bar sitting in my basement:

 

Photo 

      

I've removed the bushings from the above bar (you would want to use new ones, anyway) and it's a bit greasy but it's yours for the shipping if you need it.

 

Last edited by Ted

Stu -

 

The second picture you posted isn't showing up for some reason.  It looks like it's probably meant to support something that is forward of the front beam, I just wonder what.    

 

Gordon - thanks for the comparison between the T1 and T2 356s.  I had no idea that the suspension differed that much between them. 

 

About the beehive-era gauges, I'm having a hard time figuring out exactly what's going on with what looks like an oil temperature gauge in the picture below.  Why does it look like it has two scales and two needles for one sump?  Is one temperature and the other pressure?     [EDIT - They're both temperature - one is the scale in fahrenheit, the other is celsius] 

 

55 speedster dash

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  • 55 speedster dash
Last edited by Ted

I can see it now.  I noticed in one of your posts from several months ago that you have an under-dash hand brake and I suspect this is entirely related to getting the necessary leverage to make that work with the VW brake system.  You have what looks like the two cables for each rear wheel in the foreground attached to a flange on what might be a rotating "thingy". 

 

You could confirm or disprove that this is how your hand brake works by having someone else pull the brake while you watch the cables, or just note the position of the flange the cables attach to and see if it moves from its current position at roughly five o'clock after you've engaged the hand brake.    

 

 

   

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