How Are These Pipes Made?

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Smoker
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Re: How Are These Pipes Made?

#226 Post by Smoker » Mon Jan 07, 2019 6:00 pm

The machinist has to wait for machine time, so it's going slowly.

Still have to cut radii for the headers and stingers.

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Re: How Are These Pipes Made?

#227 Post by theredbarron » Thu Jan 10, 2019 3:30 pm

Smoker wrote: Sun Dec 09, 2018 2:28 pm I knew about back purging argon for welding titanium, but didn't know it should be done for stainless steel.

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Hi Smoker, any "reactive" metal ( of which S/S is one) has to be back purged when welding otherwise it's heading for the scrap bin. :smt010
If only there was more free time.

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Re: How Are These Pipes Made?

#228 Post by Smoker » Tue Jan 15, 2019 11:13 pm

1.25 inch OD tubing for the stingers on these pipes.

Looked at LOTS of street pipes, and don't recall seeing tubing this large.

Using internal nozzles for tuning. I've owned a lot of pipes, but not like these.

Very interesting stuff.

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Last edited by Smoker on Fri Jan 14, 2022 8:00 am, edited 1 time in total.

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Jeff B
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Re: How Are These Pipes Made?

#229 Post by Jeff B » Wed Jan 16, 2019 3:12 pm

Very cool! :)

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Re: How Are These Pipes Made?

#230 Post by Smoker » Wed Jan 16, 2019 8:22 pm

Just received this photo from Mason.

Thought it's post-worthy.

Exhaust pipe spring hooks of my own design actually completed.

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Re: How Are These Pipes Made?

#231 Post by silverstrom » Wed Jan 16, 2019 8:41 pm

Titanium springs?

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Smoker
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Re: How Are These Pipes Made?

#232 Post by Smoker » Wed Jan 16, 2019 8:57 pm

silverstrom wrote: Wed Jan 16, 2019 8:41 pm Titanium springs?
Link??

I saw some nice blue titanium springs, but not swivel type, and also longer.

If appropriate titanium springs are available, I'd be interested.

The Akrapovic springs are used on the MMX500, so I figured they would be good- and replaceable. Once the custom spring hooks are welded on, it'll need the same length springs in the future.

The springs I'm using are also considerably shorter than other springs I've seen.

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Re: How Are These Pipes Made?

#233 Post by Smoker » Fri Jan 25, 2019 11:01 pm

I have at least 4 project bikes on the other (350) side of this website.

Don't want to double post too much, but I know not everyone is into the small bikes.

Will be fabbing up some tips to fit on top of the lower stinger couplings, so I can run open pipes- for general mayhem purposes.

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Nice clearance for swingarm travel.

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Full Monty.
Still needs spring hooks welded, and full polish. Stingers will be gold titanium nitrided.
There are also some one-off titanium parts I designed for the exhaust up in the tail.

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Last edited by Smoker on Fri Jan 14, 2022 8:01 am, edited 1 time in total.

lost1750GTV
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Re: How Are These Pipes Made?

#234 Post by lost1750GTV » Sat Jan 26, 2019 12:24 am

that is going to be a sweet bike.

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Re: How Are These Pipes Made?

#235 Post by Luther » Mon Jan 28, 2019 7:58 pm

Looks like a Mori Seiki lathe in back but I cant identify one of the levers. Really cool stuff getting built.

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Re: How Are These Pipes Made?

#236 Post by Smoker » Mon Feb 18, 2019 3:45 pm

Is this pipe outlet wrapped with carbon fiber on the inside???

Looks cool!! I wonder if it lasts, without getting burned?

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Jeff B
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Re: How Are These Pipes Made?

#237 Post by Jeff B » Tue Feb 19, 2019 3:18 pm

It's hard to tell, but I would have guessed that the cone shaped extension is completely carbon fiber.

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Re: How Are These Pipes Made?

#238 Post by Smoker » Tue Feb 19, 2019 11:01 pm

Jeff B wrote: Tue Feb 19, 2019 3:18 pm It's hard to tell, but I would have guessed that the cone shaped extension is completely carbon fiber.
Sometimes I think my brain is turning to carbon fiber. :smt102

Of course, it's perforated metal.

It's a good plan for my one-off open tips. Would quiet down the bark, and look good inside the slash tips.

My concern is that the perforated titanium might melt/deform in the TiN oven. Might need to use a heavy gauge.

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Re: How Are These Pipes Made?

#239 Post by Smoker » Sun Mar 03, 2019 3:15 pm

Considering laser cut cones.

Also working on my own silencer design. Never seen it done before.

Will not be the typical silencers, seen on most 2-strokes. More, soon. :smt003
Last edited by Smoker on Fri Jan 14, 2022 8:02 am, edited 1 time in total.

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Re: How Are These Pipes Made?

#240 Post by Smoker » Tue Mar 05, 2019 6:11 pm

Beautiful color tempering on stainless from the welding process.

Haven't seen stainless pipes with this type of coloring. Beautiful welding beads, too.

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"The blue color on this stainless steel tube used in a race car chassis indicates a gas tungsten arc weld that reached approximately 1,000 degrees F."

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