Why would you back purge them? They arent dairy, food, or medical grade and whats to say there was any burn through? I never back purge any headers I make and they arent 100% penetration....Why would you need to have that? Do they need to pass x-ray and meet california standards for earthquakes and building code? No. The weld size excedes the thickness of the material, so 100% penetration is not needed for any structual integrity. If the tubes crack it 99.999% happens around the weld...not the weld itself. So the material being used is what determines how it will hold up. Not if its welded to meet ASME specs. His welds might not be cosmetically perfect, but go over them with some finishing tools, die grinder, sander, and some polishing wheels they'd be pretty damn good. Just try not to remove to much of the weld.
__________________ 99 Transam - 5.3L w/ GT45 -10.76 @ 128 w/ 1.83 60ft and broke something.
99 Vette FRC - stock
72 Nova -New twin setup in the works. (former turbo 5.3)
looks contaminated and not back purged.. id be surprized if the exhaust manifolds doesnt crumble
Thank GOD for experts!
Just for your information this idiot that did the welds has just a wee bit more experience than you! I hope you don't think this is our first rodeo, pardner!
How many sets of Stainless turbo headers have you made? Any pics?
Ive made them for 2 turbo setups. I was a ASME V pipe welder for 9 years and have done quite a bit of welding piping and tubing along with a lot of engineering.
FINALLY, motor going on the engine dyno. Breakin...stress period...... then dyno on N/A. Then turbos go on and dyno with that set up. I hope to have numbers early next week.
About time!!! LOL. I'm sure you're as anxious as the rest of us. Good luck man...
__________________ '97 WS6 Basically Stock.......except for the BRE cam, injectors, converter, gears, headers and tune I have two hobbies...golf and drag racing. So it's safe to say that I get to the course alot faster than most people...
__________________ '97 WS6 Basically Stock.......except for the BRE cam, injectors, converter, gears, headers and tune I have two hobbies...golf and drag racing. So it's safe to say that I get to the course alot faster than most people...
Motor on the dyno.....had ignition problems and only ran on seven cylinders. Still put out almost 550 HP. Got that issue solved this AM and more dyno testing today. Then hook up turbos for more testing. here is a video and some pics.
