Underneath exaust

[slimwilly]

I fancy making and underneath exaust,not a new idea i know, but i rekon i can get enough box and heatproofing under there as i have no center stand, then a small exit pipe or maybe a line of two or 3 or 4  chrome mini exit pipes in a line.


not as big a can as this , maybe just exit pipes, if not then a moto gp style pipe like this

Details mini exaust

mini exaust

[red98]

mmmmmmmm.....so you planning on putting a collector/silencer where the center stand was and then a tube up under the seat splitting into four.....sounds good but iam not too sure if theres enough room by the shock or would you go up the outside ? not as nice looking......interesting project  .......are you able to bend your own tube ?... are you peicing it together ?....or using pre formed bends ?......lots of questions i know  ..was thinking of making my own exhaust for the project 600.....

[slimwilly]

Ideally i would like no exit pipe,,the whole exaust underneath, just the exit pipe showing,,and no not up under seat,


I do have a pipe bender , bends up to 1 1/4" steel..not that i am planning on using it for this.

[ChristoT]

mmmmmmmm.....so you planning on putting a collector/silencer where the center stand was and then a tube up under the seat splitting into four.....sounds good but iam not too sure if theres enough room by the shock or would you go up the outside ? not as nice looking......interesting project  .......are you able to bend your own tube ?... are you peicing it together ?....or using pre formed bends ?......lots of questions i know  ..was thinking of making my own exhaust for the project 600.....

I'm doing that for Project Fazer's (the proper one!  ) exhaust - twin underseat R1 pipes.

I was planning on preformed bends, myself. We'll see when I get to that stage.c

[Exupnut]

I always thought u were a bender

[Hedgetrimmer]

I'm doing that for Project Fazer's (the proper one!  ) exhaust - twin underseat R1 pipes.

I was planning on preformed bends, myself. We'll see when I get to that stage.c

Pity. Would have liked to have seen this in my lifetime 

[ChristoT]

I'm doing that for Project Fazer's (the proper one!  ) exhaust - twin underseat R1 pipes.

I was planning on preformed bends, myself. We'll see when I get to that stage.c

Pity. Would have liked to have seen this in my lifetime 

Smartarse. 

I'm in touch with the engineering shop for the swingarm, when that's done, it's tail fairing followed by pipes. Getting there!

[red98]

Nice reply exupnut..........soon down to your level   



Hardest part will be threading the pipe between shock, linkage and frame.......wonder if smaller diameter pipe will work or will that affect performance....last thing you want with a blue bike   

[ChristoT]

Nice reply exupnut..........soon down to your level   



Hardest part will be threading the pipe between shock, linkage and frame.......wonder if smaller diameter pipe will work or will that affect performance....last thing you want with a blue bike   

Two things: Did you see that really nice cafe racer 600 with the spoked wheels? He'd run his exhaust around the outside of the swingarm - looked a bit bizarre, but seemed to do the job!

I was considering using oval shaped pipe for that section (before I went SSSA - makes life easier there), as that preserves the all-important area, whilst giving you reduced impact on the width fore and aft of the pipe.

[red98]

Yep...saw that one looked great....but.....exhaust did'nt look right on the outside, got to be hidden, like ths idea of oval, with the same internal area so no change in performance, harder to bend if diy....how about two smaller round ones......

[slimwilly]

My problem will be around the dog bones part of suspension,heat insulation,tyre clearance ,insulation,there is room up both sides of dog bones and underneath with a box section,with gas flowing channels inside box leading to exit, baffle system inside.

[Tmation]

Turn the swing arm into the silencer, its been done a few times in the past and looks well cool.

[ChristoT]

Turn the swing arm into the silencer, its been done a few times in the past and looks well cool.

Pics?

Also, have you considered what the Panigale and the Kawa ER-6 do for their exhausts? If yours is purely underneath, not rising up between the wheel & the bike, that may be an easier mod.

[slimwilly]

Turn the swing arm into the silencer, its been done a few times in the past and looks well cool.

An idea ! yess


but i thought it would look"HOT"


This is what i have in mind,,made in my own kind of bent tin and spot weld   style

Details under exhaust1

under exhaust1

Details underneath 2

underneath 2

they look well cool

[slimwilly]

Well ,tonight i have been to a local auction, general stuff,,well i bought a load of stainless steel cooking pans,,well what can i make with them?


pics to follow

[brooker81]

Is was thinking of one of these but at nealt a £150 im not so sure anymore.

http://www.ebay.co.uk/itm/Coffman-Shorty-Exhaust-Yamaha-FZ1-2006-13-/321400200514?pt=Motorcycles_Parts_Accessories&hash=item4ad4f1dd42

[devilsyam]

Slim as I see it for fz1
R1 headers from 04-06 de cat link pipe (slimer that stock) r1 swinging arm caliper and hanger
I'd go Dan moto rear pipes as slim and cheap
Fit this then see were it all touches and mod accordingly
This would b my route

[slimwilly]

Yes , it would be good to do that but first i want to get in the SHED,, and see what this genius can knock up
 
 
 
haha,, fucking stainless steel cooking trays,,either be good for a meetup bbq or cook an egg on route
 
I now have to source some thin stainless welding rods and try welding the stuff, if i can make a can of upper and down side then they can be partable to try different gas routes and different sound dampening methods.

[slimwilly]

Details cooking pans

cooking pans

I could go into catering,,about eight of the huge stainless pans

[slimwilly]

Details inside pipe1

inside pipe1

Took pipe off today and looked inside to where the cat used to be and saw this,,

Details inside pipe2

inside pipe2

A piece of pipe inside my exaust,,where did that come from,,,? front pipes or end can?

Details P1110287

P1110287

about 7 inches long

[noggythenog]

Foccin ell slim, that looks rather the correct size for a DB killer doesn't it but wheres the perforations or honeycomb....i would doubt that it is from the downpipes.......if you've already got your DB killer then has somebody else in the past managed to drop their DB killer down the exhaust with their previous end can and not bothered to fish it out?


Deary me if that was the case then it has been seriously hampering your power....perhaps that explains why you are so slow .


I'm gonna put my DB killer back in as i've heard about how removing them could affect back pressure so in my quest to sort out my starting issue it ill be replacing the baffle and also raising my idke rpm.


Has that piece of metal got any sign of welding marks etc on it ie has it been a fixed db kilker & someone has decided to cut it out and as they cut it it dropped in?

[slimwilly]

No noggy its just a shiny bit of unmarked pipe.a bit odd

[noggythenog]

Maybe it was used as a drift to smash out the Cat.....but somehow got left in....not sure why that would be but just throwing it out there.