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Author Topic: turbocharged cb550 bobber  (Read 43922 times)

Offline swansmaa

  • Posts: 21
turbocharged cb550 bobber
« on: Aug 23, 2013, 12:30:49 »
scored a rough old bike a wile back, and now im getting around to building something out of it. Its a 1975 honda cb550f. The plan is to build a hardtail bobber, thats boosted with a draw through single carb setup. The main goal is to build a fun and unique bike on a tight budget.



 got it stripped down and chopped up the frame a little


start of building the intake. making 1 of 2 flanges


made the intake collector. turned out alright


intake flanges


mmmmm pie


2 runners done. chop saw and angle grinder got a good workout


better shot of the collector. cut the pieces with a cutoff wheel and mig'ed em up



Offline swansmaa

  • Posts: 21
Re: turbocharged cb550 bobber
« Reply #1 on: Aug 23, 2013, 12:39:32 »
the bike now sits as a roller. im happy with how its looking

Offline coyote13

  • Posts: 1197
Re: turbocharged cb550 bobber
« Reply #2 on: Aug 23, 2013, 12:44:05 »
On board for this. What carb are you running?
Half the fun's in the get there...

Offline SONIC.

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Re: turbocharged cb550 bobber
« Reply #3 on: Aug 23, 2013, 12:46:17 »
Nice first couple posts!
I am watching, welcome to DTT>

Offline swansmaa

  • Posts: 21
Re: turbocharged cb550 bobber
« Reply #4 on: Aug 23, 2013, 12:47:41 »
On board for this. What carb are you running?

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

Offline MJPriceisright

  • Posts: 942
Re: turbocharged cb550 bobber
« Reply #5 on: Aug 23, 2013, 12:50:19 »
whoa.  looks fun.

Offline Sonreir

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Re: turbocharged cb550 bobber
« Reply #6 on: Aug 23, 2013, 12:56:10 »
Yeah... you're gonna want a much bigger carb.  VM44, maybe?
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Offline MJPriceisright

  • Posts: 942
Re: turbocharged cb550 bobber
« Reply #7 on: Aug 23, 2013, 12:59:19 »
Yeah... you're gonna want a much bigger carb.  VM44, maybe?

yepppp.. the roof on a vm30 carb is like 500cc or so right?

Offline swansmaa

  • Posts: 21
Re: turbocharged cb550 bobber
« Reply #8 on: Aug 23, 2013, 13:06:43 »
yepppp.. the roof on a vm30 carb is like 500cc or so right?

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. 

Online canyoncarver

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Re: turbocharged cb550 bobber
« Reply #9 on: Aug 23, 2013, 13:08:20 »
This will be unique for sure. 
--
73' The Commando
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
KLR650, more Nortons, a BSA, my 93" shovelhead chop, an 86' FXR, and an F9 Bighorn
more YZF750R's, more KZ's, a Zephyr750...and the ever unfinished 75' CB550 cafe.
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