frame stiffening / subframe connectors
Oct 14, 2011 17:22:23 GMT -5
Post by sigmfsk on Oct 14, 2011 17:22:23 GMT -5
This is a collection of subframe connector links and info from
www.bluesbrotherscentral.com/forum/topic/6578-make-your-bluesmobile-handle/page__hl__+make%20+handle__st__20
and my BBC Marin County page.
----------------
I'm looking for frame/body stiffness. This page talks how one can ripple the quarter panels with even a mild engine:
> - Frame Connectors:
> You will have to fab these, but pretty simple. This big uni-bodies are surprisingly
> stout, but there is flex. My Fury had rippled quarters with just a 318 to prove it!
www.cbodydrydock.com/forum_viewtopic.php?6.74655.10
so subframe connectors are a must, and maybe even more bracing. I figure whatever I can weld in underneath is good, as I won't be installing a roll-cage. Here are some interesting links:
beautiful pic of torque boxes:
from
www.cbodydrydock.com/forum_viewtopic.php?5.39078.20
other info and pics:
www.cbodydrydock.com/forum_viewtopic.php?6.31020
www.cbodydrydock.com/forum_viewtopic.php?5.36682.0
www.cbodydrydock.com/forum_viewtopic.php?5.49071
www.cbodydrydock.com/forum_viewtopic.php?5.51735
take a look at the sets of pics for August 2007
satellite.uruuk.com/timeline_p3.php
Auto Rust Technicians previously offered subframe connectors for c-bodies, but no longer. This web-page
www.autorust.com/sitemap.html
still shows the link for "68-74 C-Body". I called them, and they agreed that it should have said "-73 C-Body", but it doesn't really matter because they don't offer them any more.
Their web-site has several good articles about frame stiffening via subframe connectors and torque boxes:
www.autorust.com/articles.html
Here's another subframe connector/torque box article:
www.moparmusclemagazine.com/projectbuild/mopp_0612_classic_barracuda/index.html
I took a look underneath the car, and it may end up that the strongest subframe connectors would intrude up an inch into the rear floor pan areas. If that ends up being the case, I could probably live with that.
---------
ghostbluesman wrote:
> I used mild-steel U-channel on my '68 Dart when I dropped the
> 440 into her; you could feel a definite "stiffening" of the frame
> when you lit 'em up on the tarmac and put the torque to her...the
> SFC's are really a good addition; as a matter of fact, I'm thinking
> about adding them to my Falcon wagon. :wink:
---------
Here's a thread discussing these frames and other stiffness possibilities:
www.montecarloss.com/community/ubbthreads.php?ubb=showflat&Number=796325&gonew=1
This post:
www.montecarloss.com/community/ubbthreads.php?ubb=showflat&Number=812788#Post812788
has this pic:
that outlines a poster's earlier comment:
> For the stock frame, I easily agree that those C-channel mid sections are a key source
> of torsional compliance. When I stiffened them by adding a 1/8"-wall steel box tube of
> 1" x 3" cross-sectional dimensions, running from the front wheels to the back wheels
> and connected with those central frame rails, the improvement in rigidity was significant
> and immediately apparent.
-----------
I found this thread:
board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=5697053&Main=5693878
with this post
> I have installed frame connectors and torque boxes...
with a link to this album:
s11.photobucket.com/albums/a199/2445Cline/GTX/
with these underbody pics. Looks nice.
------------
One of the links that I posted earlier
www.cbodydrydock.com/forum_viewtopic.php?5.51735
shows the subframe connector in this pic:
that overlaps the rear crossmember and welds to it.
That same thread has these pics:
of a different car showing how this method resulted in the rear floor pan being cut into.
This thread:
forums.vintage-mustang.com/track/543451-underriders-caltracs-slide-links-etc.html
shows subframe connectors in this pic:
that go completely under the rear crossmember and weld to it.
The method shown in that last pic might allow the rear floor pans to not need to be cut into.
-----------------------
Here's a pic of challenger subframe connectors (showing how they raise into the rear passenger floodboard area)
from this fascinating thread:
www.horsepowerjunkies.com/forums/showthread.php?t=36751&page=19
and some other pics from that thread:
----------------------
Here's a page on a buildup of a 1970 dart swinger
www.schwartzperformance.com/projects.aspx?projectid=21
that has some nice pics of underside frame upgrades:
----------------
Here's a guy that's turning a 76 Gran Fury Brougham 4-door sedan into a police-clone,
> street-strip-show car with 500 cubic inch powerplant and 3.90 rear axle ratio.
www.cbodydrydock.com/forum_viewtopic.php?5.86767.0
Looks like it's going to be an impressive build.
pic showing the extra longitudinal welds along the front subframe:
He's planning on subframe connectors and such; there's a great opportunity to share info between the boards. More pics on the thread referenced. Now that I think of it, I should post this thread over there as he'll probably be interested in this "handling" info.
[note, that was before BBC went offline. I suppose I should update him with this new thread]
www.bluesbrotherscentral.com/forum/topic/6578-make-your-bluesmobile-handle/page__hl__+make%20+handle__st__20
and my BBC Marin County page.
----------------
I'm looking for frame/body stiffness. This page talks how one can ripple the quarter panels with even a mild engine:
> - Frame Connectors:
> You will have to fab these, but pretty simple. This big uni-bodies are surprisingly
> stout, but there is flex. My Fury had rippled quarters with just a 318 to prove it!
www.cbodydrydock.com/forum_viewtopic.php?6.74655.10
so subframe connectors are a must, and maybe even more bracing. I figure whatever I can weld in underneath is good, as I won't be installing a roll-cage. Here are some interesting links:
beautiful pic of torque boxes:
from
www.cbodydrydock.com/forum_viewtopic.php?5.39078.20
other info and pics:
www.cbodydrydock.com/forum_viewtopic.php?6.31020
www.cbodydrydock.com/forum_viewtopic.php?5.36682.0
www.cbodydrydock.com/forum_viewtopic.php?5.49071
www.cbodydrydock.com/forum_viewtopic.php?5.51735
take a look at the sets of pics for August 2007
satellite.uruuk.com/timeline_p3.php
Auto Rust Technicians previously offered subframe connectors for c-bodies, but no longer. This web-page
www.autorust.com/sitemap.html
still shows the link for "68-74 C-Body". I called them, and they agreed that it should have said "-73 C-Body", but it doesn't really matter because they don't offer them any more.
Their web-site has several good articles about frame stiffening via subframe connectors and torque boxes:
www.autorust.com/articles.html
Here's another subframe connector/torque box article:
www.moparmusclemagazine.com/projectbuild/mopp_0612_classic_barracuda/index.html
I took a look underneath the car, and it may end up that the strongest subframe connectors would intrude up an inch into the rear floor pan areas. If that ends up being the case, I could probably live with that.
---------
ghostbluesman wrote:
> I used mild-steel U-channel on my '68 Dart when I dropped the
> 440 into her; you could feel a definite "stiffening" of the frame
> when you lit 'em up on the tarmac and put the torque to her...the
> SFC's are really a good addition; as a matter of fact, I'm thinking
> about adding them to my Falcon wagon. :wink:
---------
Here's a thread discussing these frames and other stiffness possibilities:
www.montecarloss.com/community/ubbthreads.php?ubb=showflat&Number=796325&gonew=1
This post:
www.montecarloss.com/community/ubbthreads.php?ubb=showflat&Number=812788#Post812788
has this pic:
that outlines a poster's earlier comment:
> For the stock frame, I easily agree that those C-channel mid sections are a key source
> of torsional compliance. When I stiffened them by adding a 1/8"-wall steel box tube of
> 1" x 3" cross-sectional dimensions, running from the front wheels to the back wheels
> and connected with those central frame rails, the improvement in rigidity was significant
> and immediately apparent.
-----------
I found this thread:
board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=5697053&Main=5693878
with this post
> I have installed frame connectors and torque boxes...
with a link to this album:
s11.photobucket.com/albums/a199/2445Cline/GTX/
with these underbody pics. Looks nice.
------------
One of the links that I posted earlier
www.cbodydrydock.com/forum_viewtopic.php?5.51735
shows the subframe connector in this pic:
that overlaps the rear crossmember and welds to it.
That same thread has these pics:
of a different car showing how this method resulted in the rear floor pan being cut into.
This thread:
forums.vintage-mustang.com/track/543451-underriders-caltracs-slide-links-etc.html
shows subframe connectors in this pic:
that go completely under the rear crossmember and weld to it.
The method shown in that last pic might allow the rear floor pans to not need to be cut into.
-----------------------
Here's a pic of challenger subframe connectors (showing how they raise into the rear passenger floodboard area)
from this fascinating thread:
www.horsepowerjunkies.com/forums/showthread.php?t=36751&page=19
and some other pics from that thread:
----------------------
Here's a page on a buildup of a 1970 dart swinger
www.schwartzperformance.com/projects.aspx?projectid=21
that has some nice pics of underside frame upgrades:
----------------
Here's a guy that's turning a 76 Gran Fury Brougham 4-door sedan into a police-clone,
> street-strip-show car with 500 cubic inch powerplant and 3.90 rear axle ratio.
www.cbodydrydock.com/forum_viewtopic.php?5.86767.0
Looks like it's going to be an impressive build.
pic showing the extra longitudinal welds along the front subframe:
He's planning on subframe connectors and such; there's a great opportunity to share info between the boards. More pics on the thread referenced. Now that I think of it, I should post this thread over there as he'll probably be interested in this "handling" info.
[note, that was before BBC went offline. I suppose I should update him with this new thread]