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  1. S

    turbocharged cb550 bobber

    Making some progress on forward controls! A shitty rachet handle, snowmobile tie rod, stock cb foot grips, stock brake lever, and some scrap steel turned into this.
  2. S

    turbocharged cb550 bobber

    Decided to drag this thing out once again for some attention. Added a pair of 12" mini apes (plan on chopping them up some) and the springer seat is now functional.
  3. S

    turbocharged cb550 bobber

    Well this project got put on hold for a while for various reasons, but I've made some small progress. Going with a springer seat. Cut the Pan out of an old tractor seat, and built a pivot bracket that fastens to the bottom of the pan and uses 2 heim joints for the pivot. Right now I'm working on...
  4. S

    turbocharged cb550 bobber

    heres how it sits now, hopefully i'll have some time to work on a seat this week. I originally planned on finding a sportster tank or some sort of peanut tank, but this big ol' blue thing is starting to grow on me. And its free, which leaves a little more cash for the necessities. I plan on...
  5. S

    CR500 , 2 stroke hardtail chopper project

    any update on this? cr500's are nuts. awesome build!
  6. S

    turbocharged cb550 bobber

    ah, that all makes good sense. hopefully i don't run into compressor surge problems with my current setup. guess i'll find out!
  7. S

    turbocharged cb550 bobber

    forgive me for being ignorant, but what is it that gives the plenum style an advantage (other than space savings and simplicity)? Thats the best thing about these projects, I can have fun with it and learn more for the next project.
  8. S

    turbocharged cb550 bobber

    nope, most of the welding is mig. The downpipe had a funky coating on it that made the weld splatter kinda weird. the wastegate on it opens around 6psi, so I'm gonna start with that. constructive criticism appreciated! A plenum would have been a whole lot easier to make. The main reason I did...
  9. S

    turbocharged cb550 bobber

    nah, I just hooked it up there quick for the time being. I still have not decided on the final location for the gauge, i'll have to come up with something. I did manage to get it running tonight. I haven't touched the jetting yet, but its not terrible. This is the most that this engine has ran...
  10. S

    turbocharged cb550 bobber

    got the downpipe welded up. just needs a few little things and ill be close to making some noise hopefully
  11. S

    turbocharged cb550 bobber

    ah hell, never thought of it that way. swansmaa was just a randomly generated college ID that i was assigned in school. Now its going to bother me, thanks.
  12. S

    turbocharged cb550 bobber

    got the carbs in the mail today, and my buddy finished up powder coating the intake so i made a little progress. new megaphone/log style header is all welded up, painted with high temp black, and wrapped in header wrap. Forgot to take pics while building it, but im happy with how it turned out...
  13. S

    turbocharged cb550 bobber

    well ive made a little progress, slowly but surely. decided to build an exhaust header that was a little more direct, thats all done now. intake mani is off for powdercoating right now. Also, I just won these. 40mm flatside (Ill only be using one) So she should be able to breathe.
  14. S

    wanted: cb550 or 500 titled frame

    pm sent, thanks
  15. S

    wanted: cb550 or 500 titled frame

    really needing a titled frame for a 550 or a 500, not picky on condition. just need a title with a matching frame. thanks
  16. S

    turbocharged cb550 bobber

    well thats good to know, I was worried that the false vaccum created on decel in a draw through arrangement wouldnt work out well with a diaphragm carb.
  17. S

    turbocharged cb550 bobber

    good read, what did you end up boosting with the turbo in that picture? Back to the carb, I was expecting a loss of efficiency from a small carb but not increased temps. my turbo inlet is right around 41mm ID before it necks down to the compressor wheel, so I would think a vm40 or so would be...
  18. S

    turbocharged cb550 bobber

    the way i understand it, using a turbo is like cheating on carb size since the air is being forced (sucked in this case) through by the turbine. I agree that larger would be better, but this one might work out for now.
  19. S

    turbocharged cb550 bobber

    ive got a 30mm mikuni that im gonna start out with. might have to switch to something larger
  20. S

    turbocharged cb550 bobber

    the bike now sits as a roller. im happy with how its looking
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