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- เผยแพร่เมื่อ 4 ต.ค. 2024
- The perfect length mini bike exhaust?
Tested the Tillotson 212 powered Doodlebug minibike from 0 to 30 and top speed with multiple different length exhausts to see which would perform the best.
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That bike is sweet, it cooks along pretty nicely. Awesome Zappa background jam.
New to your channel I have a doodlebug also. I'm new to minibikes I usually mess with dirt bikes and atvs. It's a really fun hobby to get into. Can't wait to see more videos man keep it up!
Thanks! Check out the Doodlbug and other playlist on the channel. th-cam.com/video/141owDJWJgw/w-d-xo.html
11.25" is my best exhaust length giving me 4 mpg on my ct200u-ex. 44mph is plenty for me. Love the increase of power off the line.
It seems to me you've optimized the tune with the exhaust. Right after a top speed run shut it off without letting it idle down and check your plug and that should be burning clean (relatively). The best way to dial an engine in without a wideband o2 sensor imo! Great work btw!
Have you ever tried the looped exhaust? Best Mini bike channel out there.
Thanks! No, not yet...
Always awesome videos 💗💗💗💗💗
Thank you Mr. 66
Thanks for watching them!
@@Black66 ✌️🫶🙏
Done a few 2 stroke pipes with the silencer scooters, motorbikes, gopeds, lawn equipment lol yup" welding up flanges & bends one great example of horsepower was on the GoPed from the little box stock muffler 2 in expansion chamber the powerband was like night and day difference and definitely gained horsepower, but did 4 strokes dirt bikes with the supertrapp header exhaust that cones out* has adjustable baffles for back pressure which I actually got a bike to perform better with some backpressure added, like the ol fox body with 2 chamber flowmasters lost off the line torque but gained up top, added Ferrari Monza resonators at the end of the pipe and new released all the droning on the interstate, but"" a super trap would be perfect for a mini" tunable exhaust,tunable carb , tunable power, had 1 on my XT 600 Enduro too" made say around 10,15% more power than stock pipe"
Have a few videos on the channel where the bike runs faster with a muffler/baffle check it out...th-cam.com/video/xRoLThNT4nE/w-d-xo.html
Wonder if a FMF silencer would do or be like" sound ,power, from YZF 125, 250cc 4 stroke, I know 4 strokes don't rely on pipe/ muffler power, like a 2 stroke expansion chamber that needs back pressure for maximum potential pressure wave inside the pipe" as some say it's like a super charging effect almost" great video need a pit cruiser to fart with " a BT 200 with a big bore tilly " custom powder coat" or a mega moto" ( full suspension)
Check out the mega moto playlist. We have a few full suspension bikes using pit bike mufflers. They sound fantastic. th-cam.com/video/v8gpqLBGRmo/w-d-xo.html
Yea I figured this out wen I put my maglight attachment it made your exact measurements I just bored out the maglight and pressed fit it over the 3 stage header man it really made a big wake up then I did your trumpet attachment and BAM total Beast now I want it quiet again lol
Mag light exhaust would be sweet!!
@@Black66 I'm telling ya it gives it a deeper growl
@@Black66 it was my dad's he cracked a couple people with it so I can't ever get rid of it and it sucked as a light compared to my olight baton3 so I made of good use out of it 😀
I have a couple of those lights! I need to try it. @@AnGryCruizer
@@Black66 the D battery one I'm sure the c would work too 💪🏼💯💨💨💨💨 go get em boss
Best mini bike content around. I've watched all your videos. I'd love to see you do a big block like a predator 459 just to see the comparison between that vs your built 212's, 224's
Thanks! I would like to do that
Used to make a header long and cut just after the bluing after a couple of runs. Of course that was old school briggs and too poor to buy parts had to make our own. I like that bike!
We used to run the old school briggs 5 horse back in the 1980's
You should do the same test but with a muffler at the end.
Length is cool. But the real science is in diameter. Love to see a diameter test
We test & tune with the temporary put up speed limit digital sign in the neighborhood , lol , they like the electric drift trike the best though it's quite, lmao
Had a Aprilia Sr - 50 scooter 2 stroke water-cooled fuel injection hydraulic disc, on 13" pirelli tires, derestricted the stock pipe got a few more mph on the top and pulled her through the section but had gotten my hands on leo vince z x pipe " that they used to sell in the States but no more and gain 3/4 horse power over the stock pipe" substitutel amount of horsepower for something it only has a couple horsepower
Check out the e-bike playlist for e-bike races and builds. . We have some quiets tuff too. th-cam.com/video/o0UliTSSwWc/w-d-xo.html
gotta get a moefabco shorty baby... isky 285 cam, 24mm flat slide , moe fab exhaust on a ol 70s arco minibike..its gonna be fun.
I'm predicting just under 3 feet, or to use more accurate measurements 891mm. just paused again at 7:15 and hoping for 3 inches more off. & I am really hoping you measure the total length, I was talking about this a few Days ago with someone who does Grass karting, Knowing my own exhaust is too short, but it's a packaging thing. Pausing again at 9:50... the Heat discolouration is telling me a story in that veiw. Please measure the Total Length of the exhaust now, I would really love to know & see how it compares to my Mathematical calculations
I would have loved to see a test with absolutely no exhaust at all, like, nothing bolted there. Maybe next time?
I think a lot of that is the heat that’s building in the engine. Colder engine, thicker oil, slower it is. Just a thought
We actually tested this on the dyno. He is pretty close in this video.
hey black, have you considered getting the gps front forks for the ol doodlebug?
I have but I already added a front brake to the stock forks so I figure I will just them.
You never said the overall length though.
I would say this video shows the perfect length exhaust...lol check it out th-cam.com/video/H3GPSgVLOSw/w-d-xo.html
Where do you get your frames from?
Anywhere I can. Yard sales, Craigslist, Offerup etc