Joined: July 22, 2004 Posts: 2822 Location: Capital, North Carolina
Posted: Mon Jul 30, 2012 11:57 am Post subject:
You'll simply have to look at bikes or go on Fleecepay to get some ideas. Many of the factory bike mufflers out today are a bit restrictive & have catalytic converters at front part of muffler - my Ducati mufflers have cats.
My buddy Mark installed a Suzuki GSXR1000 muffler (that he got from me) on his Zetec powered Berrien buggy - he mounted it beside the motor.
Question: where are you looking to place muffler?
Crossways, like Murzi did on his Baja Bug?
Straight out the back of your buggy?
bryan _________________ Internet listed credentials impress no one but Mom...
Joined: May 29, 2011 Posts: 73 Location: San Diego
Posted: Mon Jul 30, 2012 12:23 pm Post subject:
Its for a Porsche Speedster replica and I was planning on running an a1 header setup with two of these one after the other to get my car as quiet as possible. Planning on tucking them up in the back. I have seen some posts about the hayabusa and some gsxr cans that people shorten but would love to save myself from all that work.
Joined: July 22, 2004 Posts: 2822 Location: Capital, North Carolina
Posted: Mon Jul 30, 2012 12:41 pm Post subject:
Put a side-winder style muffler on each side of motor, exit header at rear into right side-winder muffler, exit pipe goes forward, then makes 90-degree turn under car, then 90-degree turn to rear into second muffler. Then tailpipe out the back.
What motor are you running & why the need to make it so quiet? Run a stock VW T1 exhaust... _________________ Internet listed credentials impress no one but Mom...
Joined: May 29, 2011 Posts: 73 Location: San Diego
Posted: Mon Jul 30, 2012 1:04 pm Post subject:
its a mild 1915 engine 110 cam. I want to make it a daily driver and I know if its loud I wont drive it as much. Plus I want to be able to hear my radio the best I can. I know its still going to be loud but if I am customizing an exhaust figured id do it the best I can.
Joined: July 22, 2004 Posts: 2822 Location: Capital, North Carolina
Posted: Tue Jul 31, 2012 6:34 am Post subject:
1) ...get a basic header like in the second picture, take car to muffler shop, and have them build you a system.
2) ...see what other Speedster builders have done for exhaust.
3) ...put a stock VW muffler on it.
4) ...skip the radio. You're in a Speedster. Music is the mechanical noises of the car - the concept of driving is to get back to the driving experience, not to listen to Snoop Dog or Bieber. _________________ Internet listed credentials impress no one but Mom...
Joined: July 22, 2004 Posts: 2822 Location: Capital, North Carolina
Posted: Wed Aug 01, 2012 6:51 am Post subject:
clonebug wrote:
Put a SuperTrapp muffler on it.
You can add or subtract discs and get it as quiet or loud as you want.
And create as much power robbing back-pressure as you want, unless you have a dyno to tune it by. _________________ Internet listed credentials impress no one but Mom...
Joined: August 29, 2005 Posts: 8995 Location: State College, PA
Posted: Thu Aug 02, 2012 5:42 pm Post subject:
Supertrapps are available in various lengths - but shorter is louder. We are running one that I think is a 17" (15" body lenght) with 8 disks. Als header 1 3/8" desert dueler style on a mild 1776. Pretty quiet until you get on it. Power is nice - but I am honestly flying blind until I have the time to get it on the dyno for some testing (adding/subtracting discs). I will post the results when I do it, but its gonna be a couple weeks. _________________ D-Dubya Manx clone - 63 Short pan,1776.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard project at wife's request and your gonna die when you see this one.
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