Pipe Design !!Pictures!! on page 4! Nasty fast.

[atc007]

Nobody stands in Salts way! Good work,it only gets easier from here! A better welder or maybe even new cords? Would make life MUCH Easier for ya! Nice job though!

[beets442]

+1......7018 in 1/16th

[RubberSalt]

If i get a chance soon, I'm going to try out the 6013 and the 7018 rod. I have a feeling my next attempt will be much nicer. I'm going to spend more time on it, instead of rushing through the only free day i had at the time. Maybe spend a week getting it perfect. You know, take all the time in the world. Then toss my current pipe on my 125 and watch it be confused. "Do i go fast or do i go slow?"

[BGP]

...ac current is fine, make your leads are DCAP (or is that dcep? i forget...).

DCEP -> Direct Current Electrode Positive...

I may be wrong but with AC welding its constantly "alternating" between DCEP and DCEN, no?

BTW Salt, I like that shape... it looks right for what you've done inside. Now go find a chep 110 Mig on CL! Good work man!

[Billy Golightly]

This thread is making me anxious to re-try building a pipe for my 500 again. The biggest problem I had was keeping the sectioned pieces I cut on the bandsaw ROUND when I went to weld them back together. I always wound up with a side that had a big gap and it made welding it together a pain in the balls. I seen in one of the videos BGP posted that they had an aluminum billet cone that they forced the sections onto and then sort of ed back into round shape. I'm going to have to try that and I have the perfect piece of junk thats been laying around here for 10 years that'll act as my cone to form a round.

Salt if you can't get a mig welder....lay the thing out and mark all the pieces how you want it turned with a sharpie (so I can re-align the marks) and send it to me...I'll tig it up for you.

[BGP]

...lay the thing out and mark all the pieces how you want it turned with a sharpie (so I can re-align the marks) and send it to me...I'll tig it up for you.

SNAP!! I was going to offer tigging it up for you Salt, but the border BS would be a pain. But this offer right there is GOLD.

[Sparkplugkid]

need a sound video!!!

[RubberSalt]

My dads got a neat little 110 mig welder I'd like to try. He doesn't let his tools leave his garage though.

If i do send it off to get tigged up. I could tack weld all the joints first. With a mig. I'm gonna have about a week to my self soon, so i may try to build the next pipe then. I'll defiantly be taking my time on this 1. The 1 there I spent about 10 hours on, kinda rushing through things.

I'll have to get a Sound/Riding video for you, Sparkplugkid. It needs tuned in pretty bad now, so.. I'll have to wait till i get some one to haul it out to the trails lol.


Edit: I NEED A TRUCK lol

[Modding_out]

Sounds like you've got allot of options open for you when it comes to welding

Here are some pics of a weld I quickly threw down
It's 6013 1/16 rod, can't tell you the amps I was welding at, cause my welders so old the painted on dial has rusted away , I just go buy feel and visual checks of what welds the best. But any way, I just posted these up cause of you go this route you'll know what weld quality to expect.(It was prolly running a smidge to hot in the pics)

Top

Bottom

[RubberSalt]

Nice, I know what rods I'm using lol.
Gonna have to buy some and practice before the next pipe. Although. With the next pipe. I'll probably be tack welding everything with the arc and finishing it off with the mig, doubt my dad wants me to use all his gas lol. But i wont lie, i could use some serious practicing lol.

I've got some 6011 1/16 rod but it blows through everything, I haven't tried them on the 18 gauge yet, but I'm going to test them. I bet i end up getting 6013 rods.

I'm going to be looking for some 20 guage steel, the 18 is heavy, almost as heavy as the stock pipe lol.

Thanks a ton for the pictures and help!

[Thorpe]

A nice metal fit, all tacked up, and let Billy tig it for you! A tig would be such a sweet, leak free weld... I dig the amount of R&D you have into this build! Never built a 2 stroke pipe, but lots of hot rod headers.... A tig will yield the prettiest results... http://www.heartthrobexhaust.com/ is where we would buy all of our mandrel bends... Even stepping to 16 gauge isn't a terrible idea. Its more difficult to work with, but will warp less under the heat of the weld (just an option to consider)

Billy-- bandsaw trashing your pipe shapes... try using an abrasive cutoff wheel instead...?

[RubberSalt]

Only thing i had to cut it with was a 4.5" cut of wheel. I'll be cutting a better way to cut it with my assortment of tools. Cutting isn't a problem, just didn't have the tool i needed.

The hardest part i had was getting the cones perfectly round. I didn't have many round things to them on to make sure they were round perfectly. But they were pretty dang close.

[Thorpe]

We would usually spin a 4" wheel, .035" thick in a pneaumatic die grinder... (3m green corp) Was the easiest way to cut, without destroying too much in the process (fwiw)

[RubberSalt]

I got the jet kit a couple of hours ago, so i can finally start jetting that thing and see how it really comes to life. I tuned the bottom end better. The stock pipe, I'd say has a little more bottom end torque. But that was to be expected. Most pipes don't really give more power, but moves it from 1 rpm range to another. I moved everything of mine to the mid and top end. And I'm lean on the mid and top end.. lol

Come Sunday, I'll have it tuned in a lot better. Girl is turning 21 Friday night, so I'll need Saturday to recover. I also got a vid of it running nice and lean. I'll have to get it from my buddy, that could take ages...

[RubberSalt]

Oh yeah, If any of you want some pipes designed by this neat little program of mine, let me know.

I'll need to know a few things though. Width of exhaust port. More or less, as close as you can get to the total surface area. Stroke, bore, exhaust port durations and the transfer duration. Desired RPM range and what type of pipe you'd want. High HP with narrow power band or Low HP with wide power band. I prefer a wide top end power band :-p

And what bike/engine it's for