Tony.
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stainless header for gs
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Originally posted by katman View Post
Tony.'82 GS1100E
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Originally posted by katman View PostYeh, they had a nice sound too with that big can.
What size down tubes and collector you figure you would like. I know the gSXR headers are generally smaller than the GS (even my Muzzy Gen 1 pipe) but the GSXR hp is rated much above GS even stock.
My Yoshi 4:2:1 for 2nd gen is almost as large as my GS Race only GS header. I think this type of header is supposed to add +10 hp for a GSXR 1100.
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drhach
Is your primary interest for your self? A few years ago I made a header from stainless steel and and had Jet Hot coat it. It came out really nice. Sorry, I don't know where the pictures are at the moment.
As much as they are kind of silly, you may want to check in with the custom Harley crowd. A lot of those guys make their own exhausts and can probably refer you to a person in your area who could make you a one off, for less than $800.
If you have access to a welder, it even gets easier and cheaper. You can buy prebent stainless tubing in any diameter and any radius. I did a full stainless set using a TIG welder. Basically you need a welder, a bandsaw, a grinder, a ruler and some patience.
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Tarbash 27
I kind of have an interest in a 4-1 for my katana. I has a large underbelly race exhaust on it now which fits perfect. Its very loud though. I am unsure of the make. I would like a V&H but they dont make it anymore for this application. But I dont want to spend $800 on an exhaust neither.
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Don-lo
The old SS supertraps pop up on Ebay every once in a while. I got one for my Seca a few years ago for $100.
I'm sure if one comes up and you gotta have it, you could win it for less than $500
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Texasgs
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Guys I may be interested in making some headers if you could get say 8+ people interested. I build lots of prototype pieces and custom one off headers, mostly for experimental aircraft, and race cars, because that is where the $$ are at.
I built 5 sets of Titanium GS1100 headers about 18 years ago for a German company. I believe I still have the code for my vertical machine center to cut the flanges out.
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Originally posted by Texasgs View PostGuys I may be interested in making some headers if you could get say 8+ people interested. I build lots of prototype pieces and custom one off headers, mostly for experimental aircraft, and race cars, because that is where the $$ are at.
I built 5 sets of Titanium GS1100 headers about 18 years ago for a German company. I believe I still have the code for my vertical machine center to cut the flanges out.
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Originally posted by Don-lo View PostThe old SS supertraps pop up on Ebay every once in a while. I got one for my Seca a few years ago for $100.
I'm sure if one comes up and you gotta have it, you could win it for less than $500
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Originally posted by Texasgs View PostGuys I may be interested in making some headers if you could get say 8+ people interested. I build lots of prototype pieces and custom one off headers, mostly for experimental aircraft, and race cars, because that is where the $$ are at.
I built 5 sets of Titanium GS1100 headers about 18 years ago for a German company. I believe I still have the code for my vertical machine center to cut the flanges out.
Tony.'82 GS1100E
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drhach
The pieces are all readily available if you have access to a welder, it really is not that big of a deal.
One of many suppliers
Different application, same concept
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Texasgs
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Sorry this is so long.
It has been said here that there isn't much to this. That statement is the kind of statement someone would make who has been looking at pictures of header fabrication. If you have ever done it, and I mean done it to the level where the end product is a functional piece of art; then you know the difficulties. For a small quality production run jigs would have to be built.
The small pieces of tubing cut into various sections, create lots of negative issues. It is weaker, it looks bad, it creates additional internal drag, which lowers power. The sectioned headers are easier to make without bending equipment. They do require lots of extra welding, which can add to the costs. All those seams have lots of stress built up from the expansion and contraction of the welding process. Certain areas of headers on some engines will stress relieve themselves from the heat of the exhaust system. The areas that are not stress relieved are the areas that have the likely potential to develop cracks. There is a lot to making a functional header that makes power, that is also one you would be proud to put on your bike. I hate seams on a bike header, but on some designs you need them
I would be open to making stainless or Titanium, both are a pain to work with, with the TI being the most difficult. The 6AL4V Titanium is as strong, or stronger than 4130 chrom moly steel, and about half the weight. The Titanium is expensive, and I would most likely have to import it. I have a complete private machine and welding shop. Because I work with some classified projects, I am not open to the public. I am always looking for interesting items to fabricate. I have been looking into building some Titanium swing arms for a Hyabusa, and I still have room for one more project this quarter.
In order to talk about a price, the design parameters would have to be set. A drawing with details would have to be developed. Certain designs are costly to fabricate. The design parameters can triple the production cost. Ball park figures are tough. I will take a whack at them. What I would suggest is a design that uses a modern slip on silencer for a particular popular production bike to save cost. Then design a header and silencer mounts for the GS. I have great sources for the raw material. If I have to go outside these channels for material that is unavailable, the price would go up
In a qty of 16
Stainless header to take a modern slip on silencer $500 to $850
Stainless header somewhat like the old original Vance & Hines design, but not direct copies $650 to $1050
Titanium considerations. Most people hear the word titanium and go bonkers. Pure titanium is about 1/3 the strength of 4130 chrom moly. Lots of the titanium bike parts are made out of pure titanium. 6AL4V aerospace grade Titanium is 3 times stronger than pure titanium, and can exceed the strength of 4130 chrom moly steel. This is SR71 Black Bird stuff
6AL4V Titanium header to take a modern slip on silencer $900 to $1400
6AL4V Titanium header somewhat like the old original Vance & Hines design, but not direct copies $1200 to $1600.
Remember these are just rough estimates.
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sharpy
Im more than likely going to get some merge collectors from a company called SPD exhausts in the states for my header rebuild. 3 x two into one sections and some benders here to fit it all together. One day.
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