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> seam welding and rear suspension strengthening, What to do, What I did...
brant
post Mar 24 2006, 09:31 AM
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Sorry...
I tried to bite my tongue but couldn't make it...

so jumping in here.
I think seam welding IS a Ton of work, yes for only small gain... but come on.. in racing gain is gain.
- How much money do people spend on 5 hp in racing?
- How much money do people spend on weight in racing?
every little thing helps!

I'm sure tube framing every weak point would produce bigger gain, but its heavier and not always legal.

We spent 2 years prepping our chassis
and then 6 months assembling it.
my thread shows all of the assembly, but doesn't show the 2 years of seam welding and chassis work that went into it......

We seam welded a bunch of it.
here are a few shots:


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brant
post Mar 24 2006, 09:32 AM
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Inside of the same:


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Andyrew
post Mar 24 2006, 11:28 AM
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Brant, Thanks! I was working on that area last night..

PITA to weld... I couldnt get my welder configured right..

Andrew
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MattR
post Mar 24 2006, 02:59 PM
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QUOTE (TimT @ Mar 23 2006, 05:50 PM)
QUOTE
I think it's mostly way too much work for way too little gain.


Not sure I can agree with that. Porsche factory racecars have come seam welded for years. From the 72RS lightweight to the 2003 GT3RS that we own have welded seams. I havent seen a 997 GT3 yet so I cant comment on them, but i tend to think that Porsche will continue this practice.

you better believe it.

the 997gt3 is a piece of art and is seamwelded throughout.
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MattR
post Mar 24 2006, 03:01 PM
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QUOTE (Andyrew @ Mar 24 2006, 09:28 AM)
Brant, Thanks! I was working on that area last night..

PITA to weld... I couldnt get my welder configured right..

Andrew

something tells me if you are having trouble "configuring" your welder, you're not the person to be seam welding that car.

go find a professional. if you cant afford it a) get a job, B ) learn to weld, c) give up the advantage.
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J P Stein
post Mar 24 2006, 04:08 PM
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Do it , Andrew.
Some of your passes are gonna look like hammered shit initially.....but that's why they make grinders. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) Just concentrate on your puddle & the movement required to tie the metal together.....setting the heat & feed takes some fooling around, but once you're close, you'll see it.

You're gonna have to do some overhead and that's where it gets tough. Make sure you have some leathers to keep the hot stuff off your pink body.....most of the time. The smell of burning hair and sound of sizzling flesh is all just part of the fun......a couple months later, you'll laugh about it. (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)
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Andyrew
post Mar 24 2006, 04:44 PM
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QUOTE (MattR @ Mar 24 2006, 02:01 PM)
QUOTE (Andyrew @ Mar 24 2006, 09:28 AM)
Brant, Thanks! I was working on that area last night..

PITA to weld... I couldnt get my welder configured right..

Andrew

something tells me if you are having trouble "configuring" your welder, you're not the person to be seam welding that car.

go find a professional. if you cant afford it a) get a job, B ) learn to weld, c) give up the advantage.

Thanks mister!


I think I'll stick with JP's advice.

Here, let me post some pics of some of my welds..

Its a new welder, and I just got more gas, its possible they gave me the wrong stuff. I had a tough time getting it setup right for some of my other stuff, only had the welder a little bit.

I can weld just fine thank you matt. Given that the welder is setup propperly...

My problem was dirty surface area and the fact that welding on 1/4 inch of metal, upside down, trying to set the temp and speed of the welder is a little difficult.

Andrew
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Andyrew
post Mar 24 2006, 05:25 PM
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Heres some shots of my crappy welding.

Back of the rear fender.. Not as structural as ahead of it. Figured it was a good place to test.



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Aaron Cox
post Mar 24 2006, 05:27 PM
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(IMG:http://www.914world.com/bbs2/html/emoticons/chowtime.gif) yummy! goober welds! (IMG:http://www.914world.com/bbs2/html/emoticons/chowtime.gif)

man, you got MattR'd! (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)


have some fun. a grinder is all you need..... (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
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Andyrew
post Mar 24 2006, 05:27 PM
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more


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Andyrew
post Mar 24 2006, 05:28 PM
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Get it dialed in a little... and figure I'll try a little piece.


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Andyrew
post Mar 24 2006, 05:29 PM
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Smore


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Andyrew
post Mar 24 2006, 05:31 PM
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Close up of my only line I did.
Rest were done by tacks so I could grind them off if I wanted.


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Andyrew
post Mar 24 2006, 05:32 PM
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more welds


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Andyrew
post Mar 24 2006, 05:35 PM
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My trouble area..

Couldnt get a clean weld, burnted a little through, played with the settings, Metal felt a lot thinner than the rest.. Sparks would rest on my glove and burn my hand, and hit my shirt, and splatter over my mask... Upside down.. arm fully extended.. Gave up... lol


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Aaron Cox
post Mar 24 2006, 05:35 PM
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have you thought about grinding the area you wish to weld first? (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif)
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Andyrew
post Mar 24 2006, 05:37 PM
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Yes.. I used a wire wheel.



heres my long kit welds.


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Andyrew
post Mar 24 2006, 05:38 PM
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Finally my setup.


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brant
post Mar 24 2006, 05:48 PM
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sometimes I use a MAP torch or propane torch to burn off the paint before I weld...

then a stiff wire hand brush to clean up the area.

followed by primer after the weld.
(In fact I did ever single seam with POR-15 on the orange car)

brant
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MattR
post Mar 24 2006, 05:52 PM
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QUOTE (Andyrew @ Mar 24 2006, 03:37 PM)
Yes.. I used a wire wheel.



heres my long kit welds.

Were those done with a spot welding machine?
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