Tig welding a bead around the throttle body?
Thread Starter
Joined: Jul 2005
Posts: 1,264
Likes: 1
From: Scarborough, Maine
Tig welding a bead around the throttle body? On a stock 75mm ported throttle body. Is it a good idea to tig weld a bead around the front of the throttle body to prevent the coupler from blowing off under boost? Lets say 15-20psi? I know the FAST TB's have a nice lip, but the stock ones only have a very slight ridge. Is this a concern or not worth the effort?
I've welded a bead on the aluminum housing of a GM maf when we used them on the DSMs. It shouldnt be a problem at all, provided whoever welds it knows what they're doing. CLEAN, CLEAN, then CLEAN the part.
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I weld 8 bumps on the lip so that I don't over heat the bearings/seals on the shaft. I have seen more experienced tig welders submerge the TB in water to keep the seals safe so that a V-band could be welded on.
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You know when your pulling and old vacuum line off something and your prying flat head screw drivers up in the end trying to brake it loose,
Yeah... Thats how mine was. lol
I TIG'd a bead around mine, and a friends... If you can do it, I dont know why you wouldnt. After an elbow blew off and destroyed my fan i didnt want to risk it again. Wont happen again.
On The Tree
Joined: Jan 2012
Posts: 131
Likes: 0
From: sydney australia
i had the same problem when turning up boost to 20psi !!! my t/body had its stock lip machined off when it was ported and polished!!!! i was using top quality clamps too !!!!ending up trying to silicone it on still came off!!!ended up using silicone and said fark it small self drilling flat head screws smoothed off on the inside no problems since!!!sounds a bit rough but it works cheers!!!
TECH Resident
Joined: Jan 2011
Posts: 934
Likes: 0
From: Tulsa
