Custom Exhaust B-Pipe

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Hey All, last weekend I had the opportunity to do some exhaust work for a friend of mine, he did a motor swap into of all things a Toyota Rav4! Anyhow, he asked me to construct him a B-pipe for the swap, so I jumped at the opportunity.I still consider myself a novice at Tig welding, I've been learning in my spare time here and there out in the garage, I have built one other b-pipe similar to this one awhile back for another friend, for a turbo swap into a Toyota Celica.Since my buddy wanted the exhuast in stainless, and I dont have a dual flowmeter for back purging, i decieded to try "solor flux" on all the joints. for this use, it worked quite well, I did not notice any "sugering" on the back of the welds I could see, compared to practice joints I have done before without it.I took a few pics, would love to have some input from you more experienced guys on what your thoughts are on the weld quality.this is a close up of the flange weld, specs are as follows:304SS 3/8" thick flange304SS .065 wall 2.5" tubingIIRC had the machine set ~ 100amps, but footpedal controlledcierated 3/32 tungsten, sharpened with a small land1/16" 308l fillereverything else except where the new meets the old was done with the same stuff as above, only @ ~55 amps, and the joint where the old joins the new was done with 309 filler.stock b-pipe on top, mine on bottom:another angle:and 2 more shots of the flange work
Reply:Hey presure2,Your 1st pic looks like the weld is a bit cold. The 3/8"(.375) flange, IMHO, needed more heat than 100A to get a good weldment. Did you do a practice/setup piece with like parameters to test your settings & the joint?DennyComplete Welding/Machine/Fab. ShopMobile UnitFinally retired*Moderator*"A man's word is his honor...without honor there is nothing.""Words are like bullets.... Once they leave your muzzle, you cannot get them back."