Ti exhaust mod.
Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 1,020
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From: Oregon City , Oregon USA
Ti exhaust mod.
I'm planning on doing the bypass mod on my Ti exhaust and could not find the post that had recommendations on which titanium tubing to buy. What type and wall thickness should I be looking at? Is seamed ok?
Burning Brakes
Joined: Sep 2006
Posts: 985
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From: Cumming Georgia
I'm not sure many shops would have the Ti pipe. I saw a thread several months ago where a member actually bought another Ti system just to get the titanium pipe to do what I see is being called the A&A Mod. Definitely sounds louder, but that is what some like. Here is one thread I found.
http://forums.corvetteforum.com/show...ti+exhaust+mod
http://forums.corvetteforum.com/show...ti+exhaust+mod
Pro
Joined: Sep 2006
Posts: 571
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From: Milwaukee Wi
I can't find the threads right now but I was thinking of the same thing, before I found a good deal on the GHL bullets.
If I remember correctly - one person used 1 5/8" grade 2 ti tubing and someone else used 1 3/4" grade 2 tubing. I called around and found a local custom bicycle builder that would weld it for a decent price. He said they weld titanium alot(I guess titanium bike frames).
They mentioned something about buying 2 feet or so of the tubing just incase, I think only 6" is needed per side.
I think I have the links saved on a different computer, I will see if I can find them.
Ricky
If I remember correctly - one person used 1 5/8" grade 2 ti tubing and someone else used 1 3/4" grade 2 tubing. I called around and found a local custom bicycle builder that would weld it for a decent price. He said they weld titanium alot(I guess titanium bike frames).
They mentioned something about buying 2 feet or so of the tubing just incase, I think only 6" is needed per side.
I think I have the links saved on a different computer, I will see if I can find them.
Ricky
Drifting
Joined: Oct 2004
Posts: 1,384
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From: Southwest Virginia
Race Director
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The custom muffler shop a few miles away from me, has the equipment and pipe for Ti and all other exhaust. Put it this way, Vettes are the cheapest cars they do work on.
It cost me $35 for the AA mod at this shop and there was a brand new (16 miles) Z06 having the stock exhaust taken off and replaced with an AM system.
Take it to a shop you know and trust.
It cost me $35 for the AA mod at this shop and there was a brand new (16 miles) Z06 having the stock exhaust taken off and replaced with an AM system.
Take it to a shop you know and trust.
Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 1,020
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From: Oregon City , Oregon USA
The thread I was looking at gave a link to Tico titanium as a source but I don't remember the wall thickness. As I remember he said he might have gone with a thicker wall tubing than he used. I added the company to my favorites but forgot to bookmark the thread and the search function on here is somewhat lacking to put it kindly.
Drifting
Joined: Oct 2004
Posts: 1,384
Likes: 8
From: Southwest Virginia
The over the axle pipe is .050" seamed tubing which is pretty thin stuff. I don't know but assume the smaller outlets pipes are the same or close. I wouldn't go any thinner than .050 tubing, it will get harder to weld. Probably any thickness between .050 and .100 would work fine for those short sections. You may want to talk to the welder before you settle on a thickness, but most good welders won't have a problem welding .050 titanium pipe.
Be sure you take them to a true welding shop to have them welded. Welding titanium is pretty easy but must be done with a TIG. Titanium welds much like stainless. The muffler shop that screw991le has is one in a million! I'm guessing 99.99999% of the "muffler shops" in the country can't properly weld titanium. I'm guessing 50% won't even know what you are talking about. But I bet at least 75% will tell you then can do it, and produce the results like you see above. The welding shop which fixed the mess you see above had to order the titanium rods. They said the smallest pack of rods they could find was $100.
Be sure you take them to a true welding shop to have them welded. Welding titanium is pretty easy but must be done with a TIG. Titanium welds much like stainless. The muffler shop that screw991le has is one in a million! I'm guessing 99.99999% of the "muffler shops" in the country can't properly weld titanium. I'm guessing 50% won't even know what you are talking about. But I bet at least 75% will tell you then can do it, and produce the results like you see above. The welding shop which fixed the mess you see above had to order the titanium rods. They said the smallest pack of rods they could find was $100.
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Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 1,020
Likes: 0
From: Oregon City , Oregon USA
I've got a TIG welder but my skills are pretty shaky. TTi indicated they have a machine shop near them that should be able to handle the welds if they can't. Thanks for the info on the tubing. That points me in the right direction.
Drifting
Joined: Oct 2004
Posts: 1,384
Likes: 8
From: Southwest Virginia
If you get a little extra pipe simply cut a 1/2" off the pipe and weld it back on to the other piece, then do it again until you have nice looking welds. Finding titanium rods may be the hard part. Number one thing is it must be CLEAN!!! If you over heat it and it starts to pop or flake, then stop and clean it again. I'm not exactly sure what is proper to use to clean titanium but I wouldn't use a steel brush. Stainless steel brush would probably be OK. Any welding shop or even Lowes has them. At Lowes look in the welding supply area. Stainless steel brushes is used to clean aluminum when welding so they are pretty common. Normally you need to keep both sides of the weld covered with argon while welding. At least that is the way the pro pipe welder would do it. In this case for just exhaust pipe you probably won't need to do that. But you should clean all the soot out of the inside of the pipe that you can, it will get pulled up into your weld. Remember CLEAN, CLEAN,CLEAN!!!
