90amp welder capable of making manifolds?
12-06-2006, 12:23 AM
#11
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Re: 90amp welder capable of making manifolds?
Originally Posted by Tauws
wow relax dude. I just wanted to make clear that 90 amps is just fine, and you can even make good penetation of he wants to. 
12-07-2006, 12:35 AM
#12
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Re: 90amp welder capable of making manifolds?
Originally Posted by BigWheeze
Sorry I'm just an -------. I'm no welding god but you get plenty pen on a piece butted up. 70,000 PSI tensile strength. For example if exhaust gases and turbo exerts 60 PSI inclusive leaves you with 69940 PSI of unused tensile strength. Believe it or not there is such a thing as over welding. At this point the piece is actully weaker.
12-09-2006, 12:37 AM
#13
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Re: 90amp welder capable of making manifolds?
Originally Posted by A20A3T
i should add that im probably using schedule 40 piping. its just that my first manifold only saw a portion of the PSI that i was planning on running(about 7PSI) before it cracked, and its not exactly what i want to happen on the first run i do at the track
12-09-2006, 02:36 AM
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Re: 90amp welder capable of making manifolds?
Originally Posted by LSD Motorsports
You can hold 100 psi of compressed air for months straight running through that pipe and it will not crack. As far as your welding scenario, that welder has plenty of power, just clean your material better then just using a wire brush. Good luck
12-19-2006, 12:17 AM
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Re: 90amp welder capable of making manifolds?
http://www.canadiantire.ca/browse/pr...=1166507858156
would a welder like this be suitable for welding manifolds? its low setting is 50amps while high is 70 amps. it also says its good for welding 18 gauge steel to 1/8" thick steel, isnt shcedule 40 piping thicker then that?
the welder above only uses 1/16 and 5/64 rods, can i use 3/32 rods with it?
would a welder like this be suitable for welding manifolds? its low setting is 50amps while high is 70 amps. it also says its good for welding 18 gauge steel to 1/8" thick steel, isnt shcedule 40 piping thicker then that?
Originally Posted by BigWheeze
get some 3/32 E7018 it'll do the trick
12-19-2006, 06:52 AM
#16
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Re: 90amp welder capable of making manifolds?
Originally Posted by LSD Motorsports
PSI in general is has no where no the effect on cracking manifolds as some might think. The Main factor is the stress that is applied at the weld joints. Not to mention the extreme case of heat and vibrations that turbo manifolds go through. The stress is very often over looked and "bad welding" is commonly blamed for the cracking of manifolds. However it is a very good idea to to support a turbo with a brace or two. You can hold 100 psi of compressed air for months straight running through that pipe and it will not crack. As far as your welding scenario, that welder has plenty of power, just clean your material better then just using a wire brush. Good luck
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