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Re: How Fast before Frame Connectors are needed ?
[Re: Mattax]
#1695732
11/08/14 10:27 AM
11/08/14 10:27 AM
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Joined: Jan 2003
Posts: 10,150
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,150
Frostbitefalls MN (Rocky&Bullw...
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I just welded in a pair on my 65 street Dart, and forgot how important it is to support the front end in more than two positions to keep it from flexing when jacked and then winding up tweaked just a bit. As a result I have a very small paint chip on the left front fender where it meets the bottom of the body and the panels are tighter there than they were when painted.
I think we need to remember how old these car bodies are, and that support systems are even more important now than when new.
Last edited by gregsdart; 11/08/14 10:29 AM.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: How Fast before Frame Connectors are needed ?
[Re: ]
#1695733
11/08/14 11:01 AM
11/08/14 11:01 AM
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Joined: Feb 2009
Posts: 1,532
off the grid
340B5
pro stock
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pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
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Open your door, then jack up the front of the car and open the door. If you can tell a difference you definitely need the connectors. That being said; if you just do it anyway, you'll prevent future rattles and squeeks from popping up.
Yeah, it's got a smallblock.
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Re: How Fast before Frame Connectors are needed ?
[Re: dvw]
#1695736
11/08/14 11:56 AM
11/08/14 11:56 AM
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Joined: Mar 2006
Posts: 10,043
MI, usa
dvw
I Live Here
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I Live Here
Joined: Mar 2006
Posts: 10,043
MI, usa
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Re: How Fast before Frame Connectors are needed ?
[Re: dvw]
#1695738
11/08/14 06:43 PM
11/08/14 06:43 PM
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Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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Just think how much stiffer the entire car would be by boxing in the subconnectors and tietie them into the rocker boxes. That would make a very large box structure that would tie the front to the rear and be stiff as heck. Tim
1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: How Fast before Frame Connectors are needed ?
[Re: 383man]
#1695739
11/08/14 06:57 PM
11/08/14 06:57 PM
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Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
Magnum
master
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master
Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
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Quote:
I put frame connectors and a 6 point rollbar in my 63 street/strip car. I feel the 6 point rollbar stiffened it more
In theory, I completely agree with this. With all the strengthening on 1 plane, front frame, rear frame, rockers and frame connectors. It's only as strong as a pick up truck which is the king of flex.
Connectors will transfer drag launching loads to the front frame but stop flexing?
Last edited by Magnum; 11/11/14 09:00 AM.
69 Super Bee, 93 Mustang LX, 04 Allure Super
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Re: How Fast before Frame Connectors are needed ?
[Re: Magnum]
#1695740
11/09/14 09:06 PM
11/09/14 09:06 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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Truth is, Factory should have tied the frames on any 426w, 440 & Hemi powered B-Bodies.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: How Fast before Frame Connectors are needed ?
[Re: ]
#1695742
11/09/14 10:13 PM
11/09/14 10:13 PM
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Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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I was starting to wrinkle the fenders running high 11's. When I went to put in an 8 point cage, I added low positioned parallel bars between the hoop and front down bars. The front down bars sit directly over the front frame sections and the hoop sits over the rear frame sections. No more wrinkling and I run mid 10.s this way with no frame connectors.
Fastest 300
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Re: How Fast before Frame Connectors are needed ?
[Re: ProSport]
#1695743
11/09/14 10:16 PM
11/09/14 10:16 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
After reading this thread I'm starting to realize my Mopar Performance bolt-in frame connectors are useless. 
Would they be ok if I have a friend weld them in, or do they really need to come up through the floor?
I have the Mopar bolt on ones on my '70 duster but,we welded them in same ones in 2 other friends cars..none of them come through the floor...
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Re: How Fast before Frame Connectors are needed ?
[Re: ProSport]
#1695744
11/09/14 10:41 PM
11/09/14 10:41 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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Quote:
After reading this thread I'm starting to realize my Mopar Performance bolt-in frame connectors are useless.
Would they be ok if I have a friend weld them in, or do they really need to come up through the floor?
They're not useless, but they fall short of what your goal is with them. They don't need to come through the floor, but that would be the ultimate way to stiffen the floor section. Welding them in at each end would be a good idea, and will help a lot. From there, tying them to the floor somehow, mid-span is a good idea.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: How Fast before Frame Connectors are needed ?
[Re: ProSport]
#1695746
11/10/14 12:01 AM
11/10/14 12:01 AM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Quote:
Ok sounds good, I will get them welded on each end.
I've been saying all along that this particular car will not have a cage in it but I'm starting to think a 6 point bar might from turning into a pretzel as the motor will be easily capable of running 10's if I ever take it to a track. But the rear seat needs to be accessible.....decisions decisions.
On a street car, to have rear seat access with a roll bar, at least from the pass side, run a diagonal bar from high on the pass side to low on the driver side, then install a bar behind the drivers seat from main hoop to diagonal bar. This supports the hoop side to side, gives a seat bar and a place to mount harness and also leaves a large opening on pass side to get in back seat..........just watch your head......LOL!!! I have also gone from the middle of hoop straight down to top of trans tunnel and then added seat bar behind driver. This leaves the whole pass side area open to get in back
Monte
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Re: How Fast before Frame Connectors are needed ?
[Re: ProSport]
#1695747
11/10/14 01:36 AM
11/10/14 01:36 AM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Ok sounds good, I will get them welded on each end.
I've been saying all along that this particular car will not have a cage in it but I'm starting to think a 6 point bar might from turning into a pretzel as the motor will be easily capable of running 10's if I ever take it to a track. But the rear seat needs to be accessible.....decisions decisions.
Mine are the bolt in bars that are welded and dont go through the floor. But I also have a 6 point rollbar welded in that I feel does more then the frame connectors do to stiffen the car. But I have had no problems. Ron
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Re: How Fast before Frame Connectors are needed ?
[Re: Thumperdart]
#1695748
11/10/14 02:49 PM
11/10/14 02:49 PM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
Speed really isn`t the issue it`s tying the frames to make a better working more rigid chassis. 
Even a stock street car should have them if your going to beat on it.We see stock big block cars show cracks at the windshield piller/cowl area.
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