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2 Stroke expansion chamber protection

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This topic contains 34 replies, has 0 voices, and was last updated by  Chris Nicholson 13 years, 5 months ago.

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  • February 16, 2011 at 9:40 pm #196934

    Adrian Snowden
    Member

    What do you mean get past the uglyness of the pipe protector. your that fn ugly the pipe looks like a super model in comparison!

    February 16, 2011 at 10:21 pm #196935

    Mal
    Member
    menace wrote:
    good luck getting anything for your stable of Exotic bikes Mal :cheer:

    Yeah thanks mate. It looks like a custom job. I am worried about the movement of the pipe after every stack too. I might be able to make a frame mount that goes inside the Hyde.

    Got any photos of the ‘Big Ugly Whipps’ Spidy Dude?

    February 16, 2011 at 10:48 pm #196913

    alan
    Member
    Trailboss wrote:
    27roof.jpg

    Why is the guy hugging the rider, hell they are only sitting there for a picture? He doesnt need to even be on the bike he could have stood behind. I bet its a KTM rider thing thats why I dont understand :laugh: :laugh: :laugh: :laugh: :P

    Sorry Mal back on topic ;) TB quote
    own one and only than……will you understand why we do it

    :pinch: stuffed if i know why there cuddling spose just another gay ktm rider

    February 17, 2011 at 10:55 am #196959

    mike
    Member

    G’day Axel. Yes mate they were a good product and it is a shame that they ain’t around anymore. Not sure if the bloke died though as I thought I spoke with him after the car stack. He said that he was in a head on and was pretty stuffed. :unsure: He had a bashy that was nearly complete to suit my 99 model 300 and was gunna finish it and send it to me. It all turned up and all was good however I may have got the story wrong or forgotten some of it. It may have been his partner/worker that I spoke with and finished it.

    Mal, my Hyde bashy has busted the bolt bit off the clamp on some of them and I just put some wire through and between the clamp and the pipe and just wired that through the bashy holes and tightened it nice and tight:lol: and it seems to be holding pretty good so far.

    February 18, 2011 at 10:58 am #196951

    dennis da menace
    Member
    mal5.1 wrote:
    menace wrote:
    good luck getting anything for your stable of Exotic bikes Mal :cheer:

    Yeah thanks mate. It looks like a custom job. I am worried about the movement of the pipe after every stack too. I might be able to make a frame mount that goes inside the Hyde.

    Got any photos of the ‘Big Ugly Whipps’ Spidy Dude?

    do it Mal, you have the technology :laugh:

    ill take some pics tomorrow, after i wash it :blush: :cheer:

    August 28, 2011 at 2:21 am #197031

    Mal
    Member

    Well I finally got around to knocking up a prototype cage for the expansion chamber. Not sure if it will do the job but the only way to find out is to make one and test it. If handles the rocks and crashes adequatley then I’ll make one out of lighter gauge stainless tube and one out of solid aluminium bar. For now it’s 8mm mild steel and weighs just 2kg.

    Tomorrow I’m going to look at some styles of mesh to attach to the front for roost protection.

    It’s only tacked in these pics, but it’s all welded now.

    6076549774_90e2e10037.jpg
    Gas Gas EC300 Pipe cage 1 by malinjected, on Flickr

    6076550182_74460ce11a.jpg
    Gas Gas EC300 Pipe cage 2 by malinjected, on Flickr

    6076013869_666a856c3f.jpg
    Gas Gas EC300 Pipe cage 3 by malinjected, on Flickr

    6076014311_050901ec4b.jpg
    Gas Gas EC300 Pipe cage 5 by malinjected, on Flickr

    August 28, 2011 at 2:26 am #207742

    Greg
    Member

    Bloody nice Mal, I have seen you work first hand and the quailty is first class ;) Looks factory

    TB

    August 28, 2011 at 12:36 pm #207743

    alan
    Member

    top stuff mal B) reckon you could sell those

    August 28, 2011 at 12:47 pm #207750

    Jeffrey Smith
    Member

    Nice work Mal.

    Hopefully it does the job and you can sell them like Rocket said and make a squillion ;)

    August 28, 2011 at 1:15 pm #207751

    Dean
    Member

    Nice work Mal B) The Nambo has it got a standard GG pipe or is it the FMF Gnarly ? if its the standard one you will probably need to make a different protector if you change pipes, The Whipps guard is 12mm (?) solid alloy got one on my old 360, can take some serious punishment.

    Ollie

    just looked a bit harder the pipe is standard GG 😆

    August 28, 2011 at 1:58 pm #196896

    Alex
    Member

    That’s cool Mal. Nice work.

    August 28, 2011 at 3:46 pm #207768

    Roy
    Member

    Mal,

    Looks bloody good mate. My only comment is that I would consider putting in more of a gap between the pipe and the guard. I have a whipps guard on the ktm and it started out with between 25 and 50mm air space between the two. When I first got it I was worried it made the bike too wide and the gap was excessive. It did make washing the pipe easy though. Since then I have closed this gap to 0mm more than once and have had to re-bend the guard back out to get it off the pipe.

    Your guard is a different shape to the whips and has different support points so hopefully it will be right. I am not criticising your work or design just trying to add some constructive advice on things to look out for.

    On the width note. I have only ever once caught my guard on logs, rocks etc as I’ve tried to squish throught gaps. I used to cringe every time waiting for the crunch but it always seems to miss. I think the widest point is up high so it seems to clear things better than you expect. My guard is wide enough that when I first got it I used to hit my foot on it putting it down for corners.

    August 28, 2011 at 4:00 pm #196897

    jamie
    Member

    Neat work Mal,ive noticed with mine the most impacts it gets is upwards from bashing crossing/sliding over fallen trees.

    August 28, 2011 at 4:41 pm #207773

    Mal
    Member

    Thanks guys.

    If I get a design that works Rocket then yes I plan to sell them. It’ll be while before I get to that stage.

    Bundy you’re probably right with the air gap. I had a mind set when I was making that she’ll be right be then my quality control officer (the Mrs) said the same thing. I’ll see how this one goes and make another with a bigger air gap.

    Always open to ideas and suggestions.

    A Murphsberg ride will be the unltimate test.

    August 30, 2011 at 6:16 pm #207776

    murph the surf
    Member

    Bring it up Mal, I’m sure we can put it to the test somewhere. :sick: :ohmy: 👿 :whistle:
    Looks the goods though, a bit of mucking about but all worth while in the end.
    I’ll put an order in for Tims bike. :laugh:
    Always new you were one of my better apprentices. Pissing in your pocket, hoping for a discount. :laugh: :laugh:
    Cheers
    Murph

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