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Author Topic: Honda Cb 500 Four, Supercharged "BigBang" Chopper  (Read 12317 times)

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Offline Keskine

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Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #50 on: September 08, 2019, 08:30:33 AM »
Quote from: MauiK3 on September 07, 2019, 09:44:38 AM
Quite a work of art and engineering.
I wonder how much HP will be made?
Well in theory with the current gear-ratio that I have for the supercharger it should make about 0.9bar boost. Now if you calculate that 1bar of boost doubles the hp compared to naturally aspirated, I would be looking around 90hp from crank. But in reality I have no idea how much boost there is actually going to be and if the engine can even handle it.
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Offline Gurp

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Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #51 on: September 11, 2019, 08:09:50 PM »
I would def spent some time on the high performance swction of the forum. the guys thag frequent that part cam amswer most questions you'll have.
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slow Progress 74 cb550.

Poor boy chop 73 CB500 chop


Future project 77 Cb750 Amen Savior/80 shovelhead chopper

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Offline Keskine

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Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #52 on: September 18, 2019, 06:05:01 AM »
Few updates again.

Rear light and licence plate mounting tack welded.



New lever for the petcock to replace the ugly plastic one. I also made a bracket that is going to mount the petcock to the frame.

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Offline MauiK3

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Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #53 on: September 18, 2019, 09:36:22 AM »
Beautiful work!
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1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline Terry in Australia

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Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #54 on: September 19, 2019, 12:55:26 AM »
Amazing attention to detail! Too good for this little black duck........... ;D
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I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

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Offline andy750

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Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #55 on: September 19, 2019, 03:34:52 AM »
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Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline Mantree

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Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #56 on: January 11, 2020, 08:23:07 PM »
I'm digging that trigger wheel, where did you find it?  my carbs are about spent to I am getting ready to fuel inject it and probably run ignition off of it also.
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