Re: PA50 exhaust mod?

Fred /
This single post is part of a larger thread. Start from the top or view this post in context.

Sheet metal and tubing.

Matt.. a guy named Michael built a pipe for his recently and I asked him to share the dimensions he used... this is his reply >>

sure. the data i entered into javapipe was 6000 rpm, 160deg exhaust, 120deg transfer, about 160 for exhaust area (i have the exact number written down somewhere), and 450k for exhaust temp.

i ended up building it with a 7" length of .75" tube to a 9.5" cone to a 14" long 1.5" tube to a 4" cone to a 2" length of .5" tube.i think thats about right, the numbers are written down in the garage..

for the cones i used 22gauge sheet metal. for the silencer (which works a LOT better than i thought it would..) i used a 2.25" diameter piece of exhaust pipe about 4 or 5 inches long. i welded a piece of sheet metal to each oped end of the pipe and drilled .5" holes (so theirs one .5" hole for in and one .5" hole for out). i slipped one end over the end of the exhaust pipe. for the other end, i took a 3" length of pipe and closed off one end by welding some sheet metal on it. i then drilled a bunch of 1/8" holes in the sides of the pipe. i put it in the silencer so that the holes were all inside the pipe and just an inch stuck out.

all together, its a pretty damn long pipe. it just barely comes past the rear tire..and of course the welds are pretty crappy considering i just started learning basic welding a week ago..but i like my pipe. very satisfied (and it only cost me 20 bucks).

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  PA50 exhaust mod?Topic by: the casey the casey 05/24/01 03:51AM
  Re: PA50 exhaust mod?Re: Fred Fred 05/24/01 09:41PM
  Re: PA50 exhaust mod?Re: PAmatt PAmatt 05/25/01 08:33AM
  Re: PA50 exhaust mod?Re: Fred Fred 05/25/01 04:31PM
  Re: PA50 exhaust mod?Re: Richard Richard 05/27/01 02:08PM

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account