making my own pipe today.
Moderator: Moderator
I'll tell you what I think. I built one that looked just like that and it worked like crap too. Your length from the jug to the start of the expansion chamber is too long. Measure how long the original piece was on your pipe (probably 9" - 11"). Your new pipe should match the length,Corey wrote:what do you guys think?
Do a search on "highway speed pipe" for a pipe that works. I used exactly the same chamber as you did and it worked out great. You just need to build it the right length.
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Did the pipe work any better than a muffler after you throttled it?
In my mind, if you're throttling the chamber to get it to work, you might as well just run a muffler. That's what it's doing. The whole point of the chamber is to create beneficial acoustics in the outgoing pipe. You ruin all that by putting in a new restriction.
In my mind, if you're throttling the chamber to get it to work, you might as well just run a muffler. That's what it's doing. The whole point of the chamber is to create beneficial acoustics in the outgoing pipe. You ruin all that by putting in a new restriction.
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- burnt_toast
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PimpinSpree
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an unresticted exhaust shouldn't rob much power. it sounds like you have the wrong jet in the carb now. put a new plug on, run it and then check the colorCorey wrote:NO GOOD! that pipe is pure crap! It barley goes 20 now. Im guessing its not enough back pressure. think if i make a restrictive muffler it will fix it or should i just start over?
Jetting isn't going to fix the fact that the pipe design is fundamentally flawed. It needs to be reconstructed correctly.
It needs to look like this:

It needs to look like this:
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I'm beginning to like the fact that I'm one of the few with this type of pipe. I should sell instructions on how to make them instead.
Admin, Hondaspree.net | Owner, Spree Powersport Products
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You wouldn't be that impressed with my Spree. It's bright red with no decals, wheels painted with silver wheelpaint and close to factory. Visually it's pretty stock. I'm running a sawed-off muffler that I like the sound and performance of, milled head and pulley, clearanced intake. You can't see that in the pics.
This pipe easily clears the plastics, BTW.
Tell you guys what. Let's say I put some instructions together and paypal them for $10. Proceeds go to support this advertisement-free board. PM me if interested. If I get enough interest, I'll put the instructions together and send the payment instructions out.
For tools, you'll need a chinese pocketbike pipe, a hacksaw, and access to a MIG welder or wirefeed welder that can handle thin gauge material. You'll also need some wood, nails, and things to make a jig for the cuts.
This pipe easily clears the plastics, BTW.
Tell you guys what. Let's say I put some instructions together and paypal them for $10. Proceeds go to support this advertisement-free board. PM me if interested. If I get enough interest, I'll put the instructions together and send the payment instructions out.
For tools, you'll need a chinese pocketbike pipe, a hacksaw, and access to a MIG welder or wirefeed welder that can handle thin gauge material. You'll also need some wood, nails, and things to make a jig for the cuts.
Admin, Hondaspree.net | Owner, Spree Powersport Products
Buy air filters and gaskets here: (Ebay): http://stores.ebay.com/noiseguysstore (Amazon): www.amazon.com/shops/spreepower
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Buy air filters and gaskets here: (Ebay): http://stores.ebay.com/noiseguysstore (Amazon): www.amazon.com/shops/spreepower
Buy a t-shirt here: https://teespring.com/stores/spree-powersport-products
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PimpinSpree
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noiseguy wrote: Tell you guys what. Let's say I put some instructions together and paypal them for $10. Proceeds go to support this advertisement-free board. PM me if interested. If I get enough interest, I'll put the instructions together and send the payment instructions out.
For tools, you'll need a chinese pocketbike pipe, a hacksaw, and access to a MIG welder or wirefeed welder that can handle thin gauge material. You'll also need some wood, nails, and things to make a jig for the cuts.
sounds like a good way to raise money to help pay for costs. How much does a pocketbike pipe cost?


