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Old 10-04-06, 01:37 PM   #14 (permalink)
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christian.39
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Join Date: Oct 2002
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Re: MKII Headers: My 2006 Summer Project

Thanks all. It has been a real journey.

Thanks for the kind words Bill.

I would still call my welds structurally satisfactory, but not as pleasing to they eye as they could be. A funny thing happended while spending hundreds of hours welding these things. I became better at welding thin stuff than I am at thicker material. I was doing some 1/8" stuff on the mustang the other day and just couldn't get in the groove. The 321 has Ti in it (that is what gives 321 its elevated temperature strength), which is nasty in it's molten state. You use 347 filler rod when welding 321 as well. The result is a weld that looks somewhat dirty, with what I think is the Ti floating on top. I hear that inconel is even worse in that regard. 304 actually makes the best looking welds, although not as strong or corrosion resistant at elevated temperatures. I am still a nerd, but would have surely been a fabricator if I had not gone to school. It is like art class for grown ups.

Howard, I think I will have to leave the T44 to others more gifted. Our next project will be seats. They will be just like original with the exception of the seatbacks, which will probably be vacuum-bagged carbon, maybe with a little kevlar thrown in to slow down the water pump as it grinds towards your kidneys in the event of a crash. The originals are just too heavy. Anyone interested in a set should get in touch soon.
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