hi Neil, my welder guy didn't say anything about EMT or welding it......... I wondered about using that material ............but seems that it welded in just fine. I only ran that about 600 miles or so...........then went to a good OE type cat. yes........anything galvanized gives off poisonous fumes when welded. is EMT galvanaized ? what I used that I think is EMT doesn't seem 'that' galvanaized. ----- Original Message ----- From: "neil N" <musomuso@gmail.com> To: "Scott Daniel - Turbovans" <scottdaniel@turbovans.com> Cc: <vanagon@gerry.vanagon.com> Sent: Tuesday, October 14, 2008 3:33 PM Subject: Re: Running without a cat...?
> Not that this was being suggested as an alternative, but just in case > anyone is tempted..... :^) > > I ain't no expert, but I recall asking at a metal fabricating shop > about welding EMT. They said yes, one could weld it (in my case using > a MIG) BUT, the EMT surface should be prepared by grinding them down a > little at least 1" from end(s). Even then I wouldn't be confident > doing it as I'm not certain of the metal content or depth of > galvanized material. > > My understanding is that welding galvanized is to be avoided anyway. > (nasty fumes). > > Neil. > > > On Tue, Oct 14, 2008 at 12:59 PM, Scott Daniel - Turbovans > <scottdaniel@turbovans.com> wrote: > >> a factor to consider ............a hollow can for a cat doesn't flow as >> well >> as a good cat, or a straight pipe in place of a cat. >> don't tell anyone I said this ............but a slick thing to do is weld >> a >> piece of straight pipe into a hollow cat. Best flow, least restriction. >> There's on size of EMT electrical conduit that fits perfectly - just weld >> it >> inside at both ends. I've never done this of course, just heard about >> it. |
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