Author Topic: aluminum exhaust  (Read 718 times)

Offline wideopen231

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Re: aluminum exhaust
« Reply #15 on: October 25, 2021, 07:22:09 AM »
Agree 100%. At the same time exhaust is hanging out in the wind at a good rate of speed. While at idle most MFI runs on the rich side. Very little restriction on zoomies, well no restrictions. Hey I may very well melt them,but figure at most it will be a hole in them. Can always throw the heavy steel units back on.
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Offline BK

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Re: aluminum exhaust
« Reply #16 on: October 30, 2021, 06:09:08 PM »
I'm thinking if the pipes are short and straight it would work.
If they have a turn close to the port it will burn through.
If they have any kind of length they will crack.
Just my guess.

Offline wideopen231

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Re: aluminum exhaust
« Reply #17 on: October 31, 2021, 01:27:29 PM »
Well if short turn close to head burns threw we will  know shortly. Just got tubes in.Since these are test run and I could not get 120* bends and 135* looks like shyt. I bought 180 bends and cut them iin half. SO its a 85 dollar gable. Man welding 3/4" ti 1/8 tibe w/o blowing threw is nerve racking.  Hey 1t almost 20 lbs difference when all piece where here to weigh I will try it. Hey aluminum lug nuts hold the wheels on a TF car and someone had to be first to try that too. LOL
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Offline lake_harley

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Re: aluminum exhaust
« Reply #18 on: October 31, 2021, 03:53:11 PM »
Probably don't need to suggest it, but keep the puddle and heat mostly on the thick metal and let the puddle flirt with and "spill over" to the thinner tubes. I realize that's easier to say than actually do and still get good penetration. I might be preaching to the choir since you might be a certified welder. :-X

Lynn

Offline wideopen231

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Re: aluminum exhaust
« Reply #19 on: October 31, 2021, 05:28:40 PM »
Lots say I am Certified oh wait that is certifiable. Not harldy on welding. I do fair job.Yes I knew the thick first.Mn it takes some heat to get the the 3/4 melting.I did cut a groove into plate,set tube into it.Giving me a edge to melt first that has to flow to the tube and it helps.
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Offline lake_harley

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Re: aluminum exhaust
« Reply #20 on: October 31, 2021, 07:48:50 PM »
Looking forward to seeing the finished product. If the welds aren't exactly a "stack of dimes", just don't take any close ups. 8)

Lynn