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Post by WildMan on Jan 25, 2011 23:05:47 GMT -5
A Dawg's This my Custom Stainless Steel Performance Exhaust System for my Ice Bear PST150-11 Trike... This system is 100% Stainless Steel, & 100% my design & workmanship... Muffler body wall is insulated for sound dampening... Muffler body is 4" OD x 11" L, w/ a 1 5/8" Baffle Core drilled w/ 36, 7/32" D holes in & 36, 7/32" D holes out... Also has a 10" Tail Pipe... Head Pipe is 1 1/4" OD... Below is an 8 min. sound byte of the Exhaust & pics of the build... |
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Post by leeinark on Jan 26, 2011 10:56:16 GMT -5
Wildman: Don't know how many 150's and 300's there are out there but I would be willing to bet you have a ready made customer base if you ever decided to sell these. In any case I would make a "How to" paper and sell it showing what to buy where to cut and sizes etc. OUTSTANDING job. I may just have to follow your lead. Any idea what your total expenditure was? And what did you use for the insulation and baffling?
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Post by WildMan on Jan 26, 2011 11:49:39 GMT -5
leeinark
yep that's an idea...
It's insulated w/ 1/4" baffle packing mat held in place w/ 22 ga perferated Stainless... I constructed the baffle from 1 5/8" OD x 16 ga Stainless Tubing... I can also adjust the amount of exhaust that passes through the baffle as well...
Total Cost, EXPENSIVE!!! You can buy a Super Trap Muffler for less money... Roughly $250.00 + = materials, S&H, Argon, & stainless mig wire... If you have a bender & buy straight tubing you could do it for up to 50% less... You could buy straight tubing & take it to a shop w/ a bender, but then you have to pay for the shop service, so I don't believe that would be any cheaper ether, or at least not much... If you can buy all the materials locally you might save a little there because you wouldn't be paying for any S&H... The cost isn't to bad if you want the satisfaction of building a system from scratch as I did...
David Sr.
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Post by leeinark on Jan 26, 2011 12:55:07 GMT -5
I kind of thought that. I have some SS lying around and have contemplated for some time about taking this on. My father in law has a bender so I could take advantage of that, and I have my own welder. I really like the way yours came out...you did a great job!
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Post by mike6736 on Jan 26, 2011 16:30:36 GMT -5
Thats a nice sounding 150 for sure. I live in a retirement park so am making my own also but will be so low you will not here it come out the garage, darn....
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Post by ♣Luke♣ on Jan 26, 2011 19:13:56 GMT -5
the exhaust is not so loud,i can still hear you coughing in the background.
you did a great job David!!
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Post by buiditright on Jan 26, 2011 20:17:33 GMT -5
OUTSTANDING JOB BIGTIME
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Post by edfr on Jan 28, 2011 23:10:15 GMT -5
David Sr,
Very Nice Job!! What do you use to adjust the amount of exhuast passing through the baffle. Would the adjustment make it more free flow or more restrictive or louder or quieter.
Lefty
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Post by WildMan on Jan 29, 2011 0:12:54 GMT -5
edfr
I'll use a sleeve insert to add more restriction... I have the baffle designed for a 32mm + port so it's as free flowing as possible... The muffler is weld sealed, so there's no way to pull it apart to properly drill more holes in the baffle... So the basic idea was to design the baffle for a larger port than the head has in order to get maximum exhaust flow or ever to much exhaust flow through the baffle... W/ muffler weld sealed you can't get access to drill holes, but you do have access to restrict holes... The baffle has 36, 7/32" holes in, & 36, 7/32" holes out... On the inlet end of the baffle has a hole pattern of 6 x 6, so I can vary easily block off 6 holes per sleeve, or less than 6 holes w/ a specially designed sleeve...
Now there's a restriction method which I'm not using, but I wouldn't rule it out ether... It's an Old School Exhaust Restricter that consists of a Damper Design...
David Sr.
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Post by edfr on Jan 29, 2011 0:22:25 GMT -5
David Sr.,
That is a very Ingenious way of controlling the air flow to make it adjustable. Great job man.
Lefty
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