C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Birdcage spreader bar?

Thread Tools
 
Search this Thread
 
Old 08-29-2015, 02:00 PM
  #1  
Richard454
Le Mans Master
Thread Starter
 
Richard454's Avatar
 
Member Since: May 2003
Location: Fernandina Beach FL
Posts: 8,476
Received 3,218 Likes on 1,730 Posts
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified

Default Birdcage spreader bar?

What got me started was looking for a Spreader bar for the A-Arms-

This is the Chromoly Adjustable Panhard Bar I found- the curve will fit over the dry sump pump- Speedway Motor's- Garage sale for $45.

It fits great!!!

DSCN5503 by Richard Hayes, on Flickr

DSCN5506 by Richard Hayes, on Flickr


My next thought....

Driving a convertible versus a t-top- I've noticed a cowl shake- mostly noticeable when hitting bumps at low speeds-.

The T-top cars not so much- and even had a couple of C2's verts that didn't seem as bad.

I was looking at some stuff Speedway Motors has and found this tie rod/drag Link Kit with 5/8 Heim Rod Ends for a little over $50.



Now here's what I have cooked up for the birdcage-mounted it to the birdcage plus will also put the factory support braces in as well- they have to be modified to fit w/ the Vintage Air.

Doing a complete custom interior-won't work w/ the stock dash.

Thoughts? Good idea or bad? Waste of time?






Old 08-29-2015, 09:24 PM
  #2  
Richard454
Le Mans Master
Thread Starter
 
Richard454's Avatar
 
Member Since: May 2003
Location: Fernandina Beach FL
Posts: 8,476
Received 3,218 Likes on 1,730 Posts
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified

Default

Better picture-

Old 08-29-2015, 09:28 PM
  #3  
Big2Bird
Le Mans Master
 
Big2Bird's Avatar
 
Member Since: Dec 2006
Posts: 8,823
Received 1,014 Likes on 808 Posts

Default

Originally Posted by Richard454
Better picture-

Frankly, if flex was that big an issue there, there would be thread after thread about broken windshields.
My 2 cents.
Old 08-29-2015, 10:56 PM
  #4  
TheSkunkWorks
Le Mans Master
 
TheSkunkWorks's Avatar
 
Member Since: Apr 2007
Location: Graceland in a Not Correctly Restored Stingray
Posts: 7,353
Received 68 Likes on 50 Posts

Default

FWIW, the factory convertible birdcage bracing system triangulates the cowl from multiple points to a central saddle mounted at the front of the trans tunnel.
Old 08-30-2015, 02:57 AM
  #5  
toobroketoretire
Melting Slicks
 
toobroketoretire's Avatar
 
Member Since: Apr 2009
Location: Great Plains Iowa
Posts: 2,632
Likes: 0
Received 114 Likes on 108 Posts
Default

Speedway Motors 1

Consumer 0

Its trinkets like these that make rich men richer and poor men poorer.
Old 08-30-2015, 08:55 AM
  #6  
lionelhutz
Race Director
 
lionelhutz's Avatar
 
Member Since: Apr 2007
Location: South Western Ontario
Posts: 11,061
Received 845 Likes on 721 Posts

Default

I can't see the curved spreader bar at the front being that effective since the curve allows it to give. I wouldn't use it as a panhard bar either.

For the cowl, you'd be better off triangulating it to the transmission tunnel like the factory bracing.
Old 08-30-2015, 09:05 AM
  #7  
leadfoot4
Team Owner
 
leadfoot4's Avatar
 
Member Since: May 2001
Location: Western NY
Posts: 82,716
Received 1,341 Likes on 1,093 Posts

Default

Originally Posted by Big2Bird
Frankly, if flex was that big an issue there, there would be thread after thread about broken windshields.
My 2 cents.



"Cowl shake", as experienced by convertibles, is more a "fore and aft" thing, not a "side to side deal". Think about it, the roof, a structural member is removed, and now the cowl "shakes". While the roof does provide some side to side support, it's main support is fore and aft....
Old 08-30-2015, 11:46 AM
  #8  
Richard454
Le Mans Master
Thread Starter
 
Richard454's Avatar
 
Member Since: May 2003
Location: Fernandina Beach FL
Posts: 8,476
Received 3,218 Likes on 1,730 Posts
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified

Default

Originally Posted by TheSkunkWorks
FWIW, the factory convertible birdcage bracing system triangulates the cowl from multiple points to a central saddle mounted at the front of the trans tunnel.
Hey Charlie-

I'm still going to use the factory stuff - modified to fit the Vintage Air-

Sort of like what fellow forum member "mysixtynine" did to his-

thread- https://www.corvetteforum.com/forums...fications.html

Pics-





Here's the factory stuff-



Originally Posted by toobroketoretire
Speedway Motors 1

Consumer 0

Its trinkets like these that make rich men richer and poor men poorer.

Good thing I sell more trinkets than I buy....



Originally Posted by lionelhutz
I can't see the curved spreader bar at the front being that effective since the curve allows it to give. I wouldn't use it as a panhard bar either.

For the cowl, you'd be better off triangulating it to the transmission tunnel like the factory bracing.
Hey Peter-

My build-as everything else in life- is a compromise. Whether it be money vs time- or having a dry sump oil pump versus a straight speader bar.... It's a pretty substantial piece and will definitely better than no bar at all- not to mention the price was right.

And I am going to triangulate it almost like the factory...


Richard
Old 08-30-2015, 08:46 PM
  #9  
TheSkunkWorks
Le Mans Master
 
TheSkunkWorks's Avatar
 
Member Since: Apr 2007
Location: Graceland in a Not Correctly Restored Stingray
Posts: 7,353
Received 68 Likes on 50 Posts

Default

Originally Posted by Richard454
Hey Charlie-

I'm still going to use the factory stuff - modified to fit the Vintage Air-

Sort of like what fellow forum member "mysixtynine" did to his-
Old 08-30-2015, 11:29 PM
  #10  
lionelhutz
Race Director
 
lionelhutz's Avatar
 
Member Since: Apr 2007
Location: South Western Ontario
Posts: 11,061
Received 845 Likes on 721 Posts

Default

I hear you on only fitting so much into the space and you have fit quite a bit so far. that bar is fairly heavy so it should help, especially if you put some triangulation on it. I still wouldn't use bent bars in a rear suspension.

If you could add bars off that link that go forward and down to the tunnel brace then I bet it'd help a lot more. Basically triangulate it down to the tunnel.

Get notified of new replies

To Birdcage spreader bar?




Quick Reply: Birdcage spreader bar?



All times are GMT -4. The time now is 09:20 AM.