Skip to main content

Is anyone familiar with this rear sway bar setup?  I think I've seen this type of setup for Porsche 911 at the track.  But I have never seen this on a Pantera until now.

The vertical rod ends have heim joints.  The upper a-arms also have heim joints, and are adjustable for camber.  The vertical rods connect to the square tubing that is welded to the a-arm.  Someone did some nice fabrication on this.  

 

IMG_1464

Attachments

Images (1)
  • IMG_1464
Original Post

I'm not a fan of this design either and am not sure why anyone would need to go to this extent to make the rear adjustable? There are other alternatives I can think of.

The big deal on a race car though would be the mounting to the rear chassis cross member.

The original car just had 8mm studs dimple welded and you need to use caution when removing the retaining nuts so that the studs don't snap off.

I think that if it was necessary to go this railroad iron route on this car then we are into at least 1/2" diameter bolts through the cross member?

You are going to be twisting the heck out of that car and best check for wrinkles in the roof sheet metal.

 

Thanks all for your input.  It looks like this is something that should not be replicated and I will be disposing of it.  The upper a-arms might be useful to someone in the Pantera world since they have adjustable camber.  Of course the sway bar adapter would need to be removed.  The balance of the contraption might be useful to the road racing community.  

stevebuchanan posted:

Is anyone familiar with this rear sway bar setup?  I think I've seen this type of setup for Porsche 911 at the track.  But I have never seen this on a Pantera until now.

The vertical rod ends have heim joints.  The upper a-arms also have heim joints, and are adjustable for camber.  The vertical rods connect to the square tubing that is welded to the a-arm.  Someone did some nice fabrication on this.  

 

IMG_1464

If need be, I can send pictures of the original factory GR4 sway bars mechanism

Best to you all !

 Mike,

 I thought a race suspension was best designed to include multiple adjustments to compensate for track, weather conditions, tire compounds, etc. 

Are you saying, in your opinion, the adjustability provided by the five tubes is not needed?  

Or are you saying the adjustability could’ve been served by simply fabricating a tab with five holes?

Larry 

Last edited by lf-tp2511

Larry,

Sorry for being confusing. Yes, race car suspensions must be adjustable. Typically, components like anti-sway bars have a useful range used within their mounting system. It's good practice to keep links and levers in good alignment so the spring rate of the bar remains predictable. Once the alignment is overly compromised from gross adjustments it's best to change bars. I would think anyone racing a GR4 Pantera should have at least two bar sizes for each end of the car. The cramped space and short links don't help. My guess is that with those short links, moving the link from one tube to the next doesn't do very much. Increasing the angle of the link minimizes gain and side loads the bar which further compromises the effective bar spring rate. I'm not saying that it won't work, it's just not ideal.

Mike 

Add Reply

Post
×
×
×
×
Link copied to your clipboard.
×