Re: Frame ties
[Re: Scamp451]
#457308
09/02/09 02:37 PM
09/02/09 02:37 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Can someone tell me what size tubing is used for the bolt-in subframe connectors that Mopar Performance sells?
It's 1"x2" tubing.
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Re: Frame ties
[Re: Challenger 1]
#457309
09/02/09 03:26 PM
09/02/09 03:26 PM
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Joined: Feb 2003
Posts: 515
Dayton, Ohio
65cuda
mopar addict
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mopar addict
Joined: Feb 2003
Posts: 515
Dayton, Ohio
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i use 2x3 tubing. it slips over the rear sub frame and to the back of the tran cross frame then weld it all in. like MR Cab says
65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
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Re: Frame ties
[Re: 65cuda]
#457310
09/02/09 04:24 PM
09/02/09 04:24 PM
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Joined: Apr 2005
Posts: 1,880
USA
Ron Silva
top fuel
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top fuel
Joined: Apr 2005
Posts: 1,880
USA
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I use 2X3 but keep it under the floor and overlap the rear frame and box the back end.
SRT DEMON ONE SEAT
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Re: Frame ties
[Re: justinp61]
#457314
09/02/09 09:38 PM
09/02/09 09:38 PM
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Joined: Feb 2005
Posts: 699
Manassas, VA USA
Scamp451
OP
mopar
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OP
mopar
Joined: Feb 2005
Posts: 699
Manassas, VA USA
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Thanks for the answer to the original question and all the pics... nice looking work on all of them.  The challenge I am faced with though is that I want to run mufflers and turn the exhaust out to the side, but this is a back-halfed car. I have to either go under the 2x3 crossmember or out the sides, so I am trying to keep the frame rails that run from front to back as high as possible. If I go with 2x3 tubing from the 2x3 X member to the front near the torsion bars, I will probably have to lay the 2x3 "flat" rather that "tall" if you know what I mean, so I have that extra ground cleaance. Only other options I can think of to keep them high is to run them inside the car (which I am not crazy about), or use smaller tubing. I have to give up something one way or another. I guess there is oval exhaust tubing too, but never worked with it.
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Re: Frame ties
[Re: Scamp451]
#457316
09/02/09 10:18 PM
09/02/09 10:18 PM
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Joined: Aug 2009
Posts: 456
corpus christi tex
Cheatham
mopar
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mopar
Joined: Aug 2009
Posts: 456
corpus christi tex
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Quote:
Thanks for the answer to the original question and all the pics... nice looking work on all of them.
The challenge I am faced with though is that I want to run mufflers and turn the exhaust out to the side, but since this is a back-halfed I have to either go under the 2x3 crossmember
or out the sides. So trying to keep the frame railes running from front to back as high as possible. I go with 2x3 tubing from the 2x3 X member to the front near the torsion bars, I will probably have to lay the 2x3 "flat" rather that "tall" if you know what I mean, so I have that extra ground cleaance. Only other options to keep them high is to run them inside the car which I am not crazy about, or use smaller tubing.
I have to give up something one way or another. I guess there is oval exhaust tuping too, but never worked with it.
I had the same issue so i gave up my X-piped exhaust and am using car chemistry header inserts from Jegs.
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Re: Frame ties
[Re: Cheatham]
#457317
09/02/09 11:11 PM
09/02/09 11:11 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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if you use 2x3 you cut the floor in the rear and fit it tight and weld it up or you can also look at the US CAR TOOL connectors. i have them on my car and they look like the car came with them and they dont hang low
Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Frame ties
[Re: 70dusterjohn]
#457319
09/03/09 01:25 PM
09/03/09 01:25 PM
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Joined: Jan 2003
Posts: 4,247
Newfoundland
codfish
master
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master
Joined: Jan 2003
Posts: 4,247
Newfoundland
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Quote:
I used 1 5/8 .134 wall round tube..
Me too. But I used two per side.
Plenty strong, and really made the car feel "tighter"
codfish
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Re: Frame ties
[Re: codfish]
#457320
09/03/09 01:50 PM
09/03/09 01:50 PM
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Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
70dusterjohn
top fuel
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top fuel
Joined: Aug 2006
Posts: 1,613
Deerfield, Ohio
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Quote:
Quote:
I used 1 5/8 .134 wall round tube..
Me too. But I used two per side.
Plenty strong, and really made the car feel "tighter"
codfish
Yep, I only used one bar but I have many others in there to help make it stronger. It all ties in to the ladder bars. I thought it was going to be way hevier than just the 2x3 box but it was 3lbs lighter. Even with all those extra bars.. And I still have room for my exhaut pipes...
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I use 2x3 .083 and slide it into the rear subframes and plug weld it to the sides as well as as to the edge of the rear subframe edges. I weld it to the back side of the transmission crossmember also 
