SuzukiSavage.com - Custom header

verslagen1 YaBB Moderator ModSquad Online Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Custom header 12/30/09 at 13:24:09 My brothers friend has a pipe bender. I'm going to try to fab up a header and straight pipe. Aiming at 1.5" OD and header wrap. Anybody know where I can get the ring for the flange? Anybody know what baffles will work well?
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retired YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 30	Re: Custom header Reply #1 - 12/30/09 at 14:09:50 You could us a 1.5" steel washer spot weld it on, then grind it down to your outside diameter. Hope this helps. Harry
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28637 Tucson Az Gender:	Re: Custom header Reply #2 - 12/30/09 at 14:44:57 I hate the stock flange,... I want a finned one like this... I thought about measuring, and going junkyard hunting... I've also toyed with the idea of an upswept left-side exhaust... wrapping around the front downtube and back along the belt... That'll never happed either... If I was Versy,.... it would...
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thumperclone Serious Thumper Alliance Member Offline PGR rider riding with respect Posts: 6049 Grand Junction Colorado Gender:	Re: Custom header Reply #3 - 12/30/09 at 15:13:57 check jp cycles think the have those weld on flanges in their hardly cataloge.. courious why go down in size??
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verslagen1 YaBB Moderator ModSquad Online Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: Custom header Reply #4 - 12/30/09 at 16:02:20 thumperclone wrote on 12/30/09 at 15:13:57: courious why go down in size?? Stock pipe is about 1 3/8"
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BurnPgh Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1732	Re: Custom header Reply #5 - 12/30/09 at 16:08:10 verslagen1 wrote on 12/30/09 at 13:24:09: Aiming at 1.5" OD and header wrap. ID or OD?
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RidgeRunner13

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Re: Custom header
Reply #6 - 12/30/09 at 17:16:31

Does anyone remember a 'baffle' called a "Snuff or Not". Looked like a washer with a stem on it, like a lolli-pop. They wre spring loaded with a square washer that had the corners bent down against the pipe & a knob so you could turn it. We used vacuum cleaner pipes for our straight pipes with one or two "Snuff or Not"s' in them. Could go form loud to quiet just by turning the knob. Great for slipping into your neighborhood without getting noise complaints. Cool

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thumperclone Serious Thumper Alliance Member Offline PGR rider riding with respect Posts: 6049 Grand Junction Colorado Gender:	Re: Custom header Reply #7 - 12/30/09 at 17:23:22 i remember dumper headers on '57 chevys peacmaker pipes (think from national cycle)have an selenoid controlled version of what you are talkin about
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thumperclone Serious Thumper Alliance Member Offline PGR rider riding with respect Posts: 6049 Grand Junction Colorado Gender:	Re: Custom header Reply #8 - 12/30/09 at 17:26:24 slagy i tink i rememer a post on pipe size geomerty... am rememberin pontiac GTOs W/ pencil pipes TOO much PFFFFT...
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JohnBoy

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Re: Custom header
Reply #9 - 12/30/09 at 17:52:09

RidgeRunner13 wrote on 12/30/09 at 17:16:31:

Does anyone remember a 'baffle' called a "Snuff or Not". Looked like a washer with a stem on it, like a lolli-pop. They wre spring loaded with a square washer that had the corners bent down against the pipe & a knob so you could turn it. We used vacuum cleaner pipes for our straight pipes with one or two "Snuff or Not"s' in them. Could go form loud to quiet just by turning the knob. Great for slipping into your neighborhood without getting noise complaints. Cool

I built and installed three of them one, lasted a whole weekend! They all blew out on I-17 once I hit 70+. I guess that I am not as good a welder as I thought?

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thumperclone

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Re: Custom header
Reply #10 - 12/30/09 at 19:46:39

JohnBoy wrote on 12/30/09 at 17:52:09:

RidgeRunner13 wrote on 12/30/09 at 17:16:31:

Does anyone remember a 'baffle' called a "Snuff or Not". Looked like a washer with a stem on it, like a lolli-pop. They wre spring loaded with a square washer that had the corners bent down against the pipe & a knob so you could turn it. We used vacuum cleaner pipes for our straight pipes with one or two "Snuff or Not"s' in them. Could go form loud to quiet just by turning the knob. Great for slipping into your neighborhood without getting noise complaints. Cool

I built and installed three of them one, lasted a whole weekend! They all blew out on I-17 once I hit 70+. I guess that I am not as good a welder as I thought?

in the OPEN mode still has restriction, larger dia pipe with same set up wouldnt BLOW..gotta do the math but I aint D 1 that knows the forumla...

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RidgeRunner13 Serious Thumper Offline haulin' the groceries! Posts: 649 Mustang Island, Texas Gender:	Re: Custom header Reply #11 - 12/30/09 at 20:38:51 The ones we used were stamped from one piece of steel, no welds. And turned sideways they offer very little restriction.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Custom header Reply #12 - 12/31/09 at 07:08:41 The ID on a stock header is pretty small. Like 1 & 1/8th or so.
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klx650sm2002 Serious Thumper Offline The more I learn the less I know. Posts: 2041 Cumbria,England Gender:	Re: Custom header Reply #13 - 12/31/09 at 10:06:33 1.5" i.d. would be good and a match for one of Lancer's mikuni VM38's. Clive W
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buttgoat1

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Re: Custom header
Reply #14 - 12/31/09 at 17:43:39

I seem to recall from earlier discussions on here someone opined that putting too large of a pipe (just the outer shell of the stock header say) would be counterproductive to exhaust velocity and that putting cone shaped insert after the port would increase velocity, maintain backpressure and prevent backflow.

After that, the ID of my screaming eagle muffler is 1 5/8, so 1 1/2 would be just right to match that.

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