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  1. #11
    Daniel Coop's Avatar
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    Quote Originally Posted by TheDullCarbide View Post
    How'd it turn out? Are you running a clutch or TAV2?
    Nobody out here is really running torque converters on their minis. He ended up using a 15t Max Torque clutch on it in an otherwise bone stock MBX11 roller he had been sitting on.

    His bike was out today at the meet, and was easily second fastest out today next to my old beater ARCO Easyrider. We went on a long group ride and I rode my daughter's OMB Build-Off Motovox MBX10. As I expected, his bike was faster than my daughter's stock rod GX200, but when we lined up to do a little drag racing back at the park, niether him or my new buddy Mike with his big block (GX390) mini chopper had much for my beastly little 196cc ARCO Easyrider. That thing hauls... It's an 11:1 compression, stainless small valve Grayhound clone with Dyno's 275 cam.
    Here's another little video done by my buddy Walter with his GoPro... I'm the ugly mullet haired dude with the dark red hoodie. Lol. About 2/3's in is the little bit of footage of us racing. I'm the guy out front every time. https://youtu.be/6YfUJaNLmwc
    Last edited by Daniel Coop; 10-17-2017 at 01:38 AM.

  2. #12
    Senior Member KMC3420's Avatar
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    That little pine tree blowing in wind cracks me up. Looks like a blast running down those streets.


  3. #13
    Daniel Coop's Avatar
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    [QUOTE=KMC3420;1144672]That little pine tree blowing in wind cracks me up. Looks like a blast running down those streets.

    Man, you ain't lying... I have had more fun this year with this group of guys than nearly any other year I can think of. I will truly be sad when it's too cold to meet up, and hope next year will be even more fun. I'm amazed week by week at the shit we have gotten away with riding on the streets of Denver, but we do ride on Sunday through mostly industrial districts where ain't much going on...
    Our crew is getting faster and I have landed myself 2 more paying engine builds to keep me busy in the next week or two, so I will definitely be looking forward to next season where there'll be more opportunities for some good old fashioned, heads up street racing and better competition.
    As an afterthought​ to this build, I don't think I would build another Mod 2 motor... Its pretty anemic in the lower RPMs, not making much power until after 4,000RPM where it does really come alive. Not an ideal cam for a mini bike in my opinion. I was wrong about my buddy Jose's clutch. It's a 13t not a 15t and he was running a 70t Doodlebug rear sprocket. You'd think with that gear ratio, there'd be plenty of torque, but it definitely left something to be desired off the line. Even with the healthy bump in compression, my daughter's 11:1 compression, stock rod, PVL flywheel GX200 with new design CL1, 1.2 ratio rockers and a 12t to 58t gear ratio seemed to have a slightly better take off.
    I have to say, from my experience the Dyno Cams CL3 is my favorite cam for a budget build, mini bike motor and either the Dyno 275 cam or Isky Black Mamba JR cam, my choice for a higher end build. Low end grunt is just as important if not moreso with a mini bike with all the stopping and starting from dead stops. Mod 2 might be great in a kart on a larger track where you can keep the RPM's up, but is kinda lame off the line.
    Last edited by Daniel Coop; 10-17-2017 at 02:25 AM.

 

 
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