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Old 08-05-2016, 03:45 PM   #1061
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Great work, wish you were closer I need an exhaust built for my NB. Keep up the great work!
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Old 08-08-2016, 07:35 AM   #1062
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Yeah thanks man, that wont work.

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These the pictures you're looking for?







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Old 09-15-2016, 07:19 PM   #1063
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Welding tip of the day.
You can not weld titanium and stainless together. You can also not weld titanium and mild steel together.


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Old 09-15-2016, 07:41 PM   #1064
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Quote:
Originally Posted by Erat View Post
Welding tip of the day.
You can not weld titanium and stainless together. You can also not weld titanium and mild steel together.


Yes you can. You just need a mountain and a permission slip from the ATF.

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Old 09-16-2016, 06:50 PM   #1065
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Pretty sure you can friction weld too. And here is mr. tig doing it.

TIG Welding Stainless Steel to Titanium | TIG Time - YouTube

And he cracks it too lol.
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Old 09-16-2016, 07:00 PM   #1066
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So he also proved my point.
Friction welding is great and all, but how many of us are going to friction weld exhaust tubing together? Or friction weld anything for that matter.
As he said, "there just not weldable together". In my picture i did the exact same thing he did with the 308l stainless filler on 304l tubing to the titanium plate. On the other side of the small plate was 316l plate steel, that did not crack but the stress sounds it made after i was done welding told me i would not hold up under any type of test, even if i couldn't get it to crack. I did end up breaking it off once i put the vice grips on it and bent it off.
Mine actually held better than Mr.Tigs did, i had to hammer on it with a clamp a few times before the crack formed. You can see the hit marks on the round part in my picture.
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Old 09-16-2016, 07:01 PM   #1067
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What about letting it cool slowly. Sand?
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Old 09-16-2016, 07:02 PM   #1068
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Quote:
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What about letting it cool slowly. Sand?
Concrete works better.

But maybe.

Want me to try it?
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Old 09-16-2016, 07:03 PM   #1069
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Kind of. I know with cast iron you have to let it cool really slowly or it cracks.
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Old 09-16-2016, 07:21 PM   #1070
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Well, the internet doesn't have much information on it. If i find some concrete at work tomorrow i'll do it in the name of science.
I know i have sand, so i can always use that too.

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Old 09-17-2016, 05:39 PM   #1071
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I welded one with 308 filler and one with Ti filler. The SS filler one cracked in the sand. The Ti filler one held good until i hit

it.

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Old 09-17-2016, 11:08 PM   #1072
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I also tried to friction weld stainless and titanium. But the lathe in the shop sucks major ***** and spins at a sad 1400rpm which is way to slow.
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Old 09-18-2016, 08:48 AM   #1073
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My version of a diy custom manifold, obviously still work in progress. Runner length is something i still thinking about So that pic on the bottom is what it could like, but it could change a little








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Old 09-18-2016, 01:31 PM   #1074
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Fabbed up my IC piping, had my buddy weld because I can only stick aluminum together at this point.

This is is my first set of IC pipes, I know I could have run the hot side better but didn't want to buy more pipe, so I made what I had work.









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Old 09-29-2016, 08:19 PM   #1075
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First test fitment seems to be alright. Plenty of space left, now i have some realworld dimension to make the plenum. But i think my computer model fits perfectly in there



For the velocity stacks i tried some 3D printing and turned out pretty good, very stiff part. The inner part is so i can mount it on a drill and shave the part to a smooth finish





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Old 09-29-2016, 10:05 PM   #1076
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Quote:
Originally Posted by Vincentmiata View Post
My version of a diy custom manifold, obviously still work in progress. Runner length is something i still thinking about So that pic on the bottom is what it could like, but it could change a little






take my money
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Old 09-30-2016, 09:25 AM   #1077
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take my money
Seriously. That's hot.
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Old 09-30-2016, 12:43 PM   #1078
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How are you planning to make the plenum section? Sheet metal?
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Old 09-30-2016, 02:56 PM   #1079
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A mix of a tube and bends cut in half and some sheet metal and all welded together
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Old 09-30-2016, 02:59 PM   #1080
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Do you have access to a lathe, manual or otherwise?
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