Adirondackstihl
Flyz, Fuel & Fotos
You should get a Kleenex
Custom Made Tuned Pipe (Fundraiser For Adirondackstihl)
- Thread starter Mastermind
- Start date
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Will the pipe for Auction be a single stage or multi stage diffuser? His pipes look good and what a fantastic guy to offer his time/expertise to help out a fellow member in need. lmpressive!!
Dirty sox are a dime a dozen.
spencerpaving
ArboristSite Guru
For gas saws I usually do a two stage design...alky saws seem to like the added volume of a single stage like the one pictured
spencerpaving
ArboristSite Guru
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spencerpaving
ArboristSite Guru
Sent from my SCH-I545 using Tapatalk
A talented craftsman and a heck of a good guy!
Skeans
Addicted to ArboristSite
Nice esr motor what bore and stroke?View attachment 451510 View attachment 451500
Seems as though Bret knows how to build stuff. Not much on this one that you can walk in to a store and buy.
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Adirondackstihl
Flyz, Fuel & Fotos
350
mcobb2
ArboristSite Operative
My bid is$275
Does the stinger come inside the pipe......say half way up the baffle? Do you find much fine tuning is required during fabrication through trial and error or do you find your designs will bolt on and perform well straight off the bat? Would port time area/duration need to be changed on a stock Solo 681 to benefit most from exhaust tuning? Sorry 4 all the questions but l have wanted to pipesaw a 681 for a while....l have a NOS(new old stock, not nitros) 681 ready for the project. Some of your bikesaws are better to look at than victoria secret models.
Adirondackstihl
Flyz, Fuel & Fotos
Isn't past your bedtime?
Port timing for pipe saws is usually a good bit different from stock.
Obviously......but what do we need to do to a port map that centered around a tin can as an exhaust. Do we want more transfer duration? Increase port area? Raise/lower exhaust port or alter the pipe to achieve the desired power curve and rpm? l realise there is different ways of getting a similar result and there may be more than one 'right way'.
mcobb2
ArboristSite Operative
Yes sir... Hence my response this morning, twatberry. I see your texting me right back must be your hungover...
HuskStihl
Chairin'em for the sound
My 445 is gonna look great with that pipe on it! Will the decomp still work with the pipe???
I bid $288
I bid $288
Mastermind
Work Saw Specialist
13TreeWorks
ArboristSite Operative
What material are you building these pipes out of ?? I built a pipe with that java calculator I found on a rc page somewhere put it on a ms390 was loud felt really strong in the cut had alot of fun wasted tons of time dad thoight it was foolishly cool and then it broke in half despite the support bracket mid pipe .... Broke about an inch from the exhaust port it was just some cold rolled 20ga ..... My pipe turned almost 180 degrees and came back along the clutch side..... I don't know why I did it that way but I liked it why pray tell dose it seem everyone else goes lefty ???? Oh yeah and I don't know what it will go on but I'm finishing up a cleanup today so I'll put that money on the pipe if it goes well... just have to promise not to tell my old lady ......... How would you suggest handling the rest of the mods to the saw to make it run proper if someone was starting with a stock saw ??? I'll post my bid tonight if the job goes well
Jesse
Jesse
Yes and yes. Usually the exhaust is raised about 10 degrees from stock at minimum. Blowdown is lengthened. I can't remember all of it right now. Brett will be able to tell you more in sure.
spencerpaving
ArboristSite Guru
A expansion pipe will work with any port timing be it stock or race porting...as long as the pipe is set for that particular engine. A pipe will improve performance on a stock engine but a pipe will bring more hp on a engine with with more blowdown..which means more ex dur. For example a pipe set to run at 12000 rpm on a engine with 195 degrees of ex will be longer than a pipe on a engine with 165 degrees of ex at same rpm be cause the port opens later...as for the material I use 22 gauge for the pipe and 18 gauge right at the header..haven't had one break yet..knock on wood. ..most of the time I build them up to the left because of balance of the saw for cold start racing...but can configure it anyway they want
