Custom Built Full Exhaust On The Cheap - Page 13 - Triumph675.Net Forums
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post #121 of 164 Old 11-11-12, 12:06 Thread Starter
KEGSdale
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Quote:
Originally Posted by TheKyleRC View Post
Is it not possible to just cut the stock header right after the 3-2-1 merge? Instead of having to do the merge yourself.


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IMO, if you're already doing the work to remove the exup, might as well get rid of the stock collector as well. Look at the 2nd pic in my original post, any true 3-1 collector is going to out flow that. It helps too if you have fabrication skillz, it cuts down on the cost you have to pay others to cut/fit/weld. But even if you have to pay someone to do it, I know of others who have had this done for around $100 bucks plus parts, which really isn't too bad.

If you can rely on your ability, you don't have to worry about reliability.
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post #122 of 164 Old 11-11-12, 12:39
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Do you think this job could be done with an arc welder?

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post #123 of 164 Old 11-11-12, 17:29
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Once the exup is removed wont it set off the warning light or no?
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post #124 of 164 Old 11-11-12, 17:53
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Quote:
Originally Posted by krause95 View Post
Once the exup is removed wont it set off the warning light or no?

Download TunECU and get the correct cable and you can disable it in the tune you use and clear any error codes you have.

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post #125 of 164 Old 11-12-12, 01:15
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Quote:
Originally Posted by KEGSdale View Post
IMO, if you're already doing the work to remove the exup, might as well get rid of the stock collector as well. Look at the 2nd pic in my original post, any true 3-1 collector is going to out flow that. It helps too if you have fabrication skillz, it cuts down on the cost you have to pay others to cut/fit/weld. But even if you have to pay someone to do it, I know of others who have had this done for around $100 bucks plus parts, which really isn't too bad.
I am doing a custom side exhaust for my street fighter - the pipe will be fairly short so wouldn't the bad flow help cause a little back pressure that it'll be lacking otherwise?


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post #126 of 164 Old 11-13-12, 07:18
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The smallest dia pipe in the system will determine back pressure if it is a continuous system. If you have a chamber depends on whether the outlet is in line or off to the side.
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post #127 of 164 Old 11-13-12, 14:15 Thread Starter
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Quote:
Originally Posted by TheKyleRC View Post
I am doing a custom side exhaust for my street fighter - the pipe will be fairly short so wouldn't the bad flow help cause a little back pressure that it'll be lacking otherwise?


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I can't see bad flow helping anything. Even when you buy a full shorty exhaust like a Zard for example, they all use true merge collectors.

If you can rely on your ability, you don't have to worry about reliability.
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post #128 of 164 Old 11-16-12, 07:22
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got my header and cone parts. going to get this rolling.

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post #129 of 164 Old 11-16-12, 08:42
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got my header and cone parts. going to get this rolling.
Post pics.
are you going to do a before and after dyno run?

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post #130 of 164 Old 12-15-12, 21:07
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Just got mine done today, was about a 5 hour job with the help of my buddy Kevin. I had the bike dynoed on Thursday with just the Akra slip and will be going back this next Thursday to see if anything was gained.

A few pics

What your cutting out





A few of the steps










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Last edited by Nitto12Ss; 12-17-12 at 02:51.
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