« previous next »
Pages: 1 2 [3]   Go Down

Author Topic: Honda Cb 500 Four, Supercharged "BigBang" Chopper  (Read 11137 times)

0 Members and 1 Guest are viewing this topic.

Offline Gurp

  • I'm no.......
  • Master
  • *****
  • Posts: 2,082
  • Once was a...
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #50 on: September 07, 2019, 09:33:52 AM »
great looking project. love the lines and the girder!
Logged
slow Progress 74 cb550.

Poor boy chop 73 CB500 chop

Future project 77 Cb750 Amen Savior

Offline MauiK3

  • A K3 is saved
  • Old Timer
  • ******
  • Posts: 4,269
  • Old guy
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #51 on: September 07, 2019, 09:44:38 AM »
Quite a work of art and engineering.
I wonder how much HP will be made?
Logged
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline SOHC4 Cafe Racer Fan

  • Speak up, Whipper-Snapper! I'm a
  • Really Old Timer ...
  • *******
  • Posts: 15,731
  • SOHC/4 Member #1235
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #52 on: September 07, 2019, 11:38:08 AM »
Fingers crossed 🤞🏻 this bike will a real runner. I, too, would like to see how much power it makes and how that power makes it to the pavement.
Logged
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Keskine

  • Full Member
  • *
  • Posts: 13
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #53 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.
Logged

Offline Gurp

  • I'm no.......
  • Master
  • *****
  • Posts: 2,082
  • Once was a...
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #54 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.
Logged
slow Progress 74 cb550.

Poor boy chop 73 CB500 chop

Future project 77 Cb750 Amen Savior

Offline Keskine

  • Full Member
  • *
  • Posts: 13
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #55 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.

Logged

Offline MauiK3

  • A K3 is saved
  • Old Timer
  • ******
  • Posts: 4,269
  • Old guy
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #56 on: September 18, 2019, 09:36:22 AM »
Beautiful work!
Logged
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline Terry in Australia

  • Really Old Timer ...
  • *******
  • Posts: 33,302
  • So, what do ya wanna talk about today?
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #57 on: September 19, 2019, 12:55:26 AM »
Amazing attention to detail! Too good for this little black duck........... ;D
Logged
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?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline andy750

  • Really Old Timer ...
  • *******
  • Posts: 7,938
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #58 on: September 19, 2019, 03:34:52 AM »
Logged
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

  • Hot Shot
  • ***
  • Posts: 596
Re: Honda Cb 500 Four, Supercharged "BigBang" Chopper
« Reply #59 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.
Logged
Pages: 1 2 [3]   Go Up
« previous next »