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Author Topic: CMW secretly releases California Special B5  (Read 2100 times)

Arizoni

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Re: CMW secretly releases California Special B5
« Reply #15 on: August 17, 2012, 10:53:02 PM »
Well, they call it a 5 stroke but I would call it a compound 4 stroke engine.

It seems to be basically a conventional 2 cylinder, 4 stroke engine that delivers its exhaust to the low pressure 3rd cylinder much the same as the old 3 cylinder compound steam locomotives did.

With the 3 cylinder steam engines the two outer cylinders on either side of the locomotive operated normally  with steam pressure delivered alternatly to the front and rear of the pistons.

On the exhaust strokes each "side" cylinder exhausted to a centrally located cylinder driving its piston back and forth.  This extracted much of the remaining steam energy (pressure) to create more power. 
This third cylinder exhausted thru the smoke stack venturi to create the air draft feeding the firebox.
All three cylinders used rods to connect their pistons to the drive axle just like this "5 cycle" engine does.
Jim
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Pauly

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Re: CMW secretly releases California Special B5
« Reply #16 on: August 18, 2012, 05:36:16 AM »
thats just a fancified version of the "twingle" discussed recently else where on here, there are several people using this technique right now
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gremlin

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Re: CMW secretly releases California Special B5
« Reply #17 on: August 18, 2012, 05:42:51 AM »
Nah, I used to own a twingle (sears allstate puch 250) it was a ported 2-stroke engine with 2 pistons and a channel (port) cut in the head between the two combustion chambers.  The pistons traveled up-and-down 15 degrees apart, the rear piston was the intake and the front piston had the exhaust ports. The 2 spark plugs were fired from a common set of points.  It used two 3 volt coils in series. (the bike was 6 volt).   Essentially, it was a single cylinder 2 stroke engine with a barrier in between the intake and exhaust ports, so, it was more economical to run and IMO ran slightly smoother than an equivalent single piston engine.  (due to the slight lope in the power delivery created by the offset phase pistons)
« Last Edit: August 19, 2012, 05:55:14 AM by gremlin »
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1 Thump

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Re: CMW secretly releases California Special B5
« Reply #18 on: January 10, 2013, 03:52:31 PM »
Here is another one. This one is 750 c.c.:

http://losangeles.craigslist.org/lac/mcy/3530120198.html

C'mon Kevin !!
« Last Edit: January 10, 2013, 03:54:48 PM by 1 Thump »

Ducati Scotty

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Re: CMW secretly releases California Special B5
« Reply #19 on: January 10, 2013, 05:17:30 PM »
That red bungy cord is good for another 3mph of top speed.

Scott

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Re: CMW secretly releases California Special B5
« Reply #20 on: January 10, 2013, 07:10:15 PM »
my doctoy says 1 more stroke might keep me off my bike
killing bugs since 1972 2011 g5 deluxe

gremlin

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Re: CMW secretly releases California Special B5
« Reply #21 on: January 11, 2013, 12:03:49 AM »
my doctoy says 1 more stroke might keep me off my bike

I'm sorry to hear that.  :(
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Desi Bike

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Re: CMW secretly releases California Special B5
« Reply #22 on: January 11, 2013, 02:55:09 AM »
Ghostly looking abduction on the third picture
میں نہیں چاہتا کہ ایک اچار
میں صرف اپنی موٹر سائیکل پر سوار کرنا چاہتے ہیں

hillntx

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Re: CMW secretly releases California Special B5
« Reply #23 on: January 11, 2013, 02:55:59 AM »
Hope he's not selling that "750cc" because its too much bike for him.

GlennF

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Re: CMW secretly releases California Special B5
« Reply #24 on: January 11, 2013, 03:19:12 AM »
Hope he's not selling that "750cc" because its too much bike for him.

I have heard the 750cc B5 single can be a touch bothersome to kickstart.

iowarider

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Re: CMW secretly releases California Special B5
« Reply #25 on: January 13, 2013, 06:51:14 AM »
I love the special sell it quick price. Only around $400 more then a new one in CA, :o
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Re: CMW secretly releases California Special B5
« Reply #26 on: July 17, 2013, 04:56:23 PM »

Dudefella

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Re: CMW secretly releases California Special B5
« Reply #27 on: July 18, 2013, 01:49:11 AM »
Strictly speaking, a direct injection engine could be considered a 5 stroke, induction, compression, injection, ignition, exhaust.

But who cares ;)

D the D

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Re: CMW secretly releases California Special B5
« Reply #28 on: July 18, 2013, 03:44:24 AM »
Strictly speaking, a direct injection engine could be considered a 5 stroke, induction, compression, injection, ignition, exhaust.

But who cares ;)

Injection and Combustion aren't "strokes" or cycles. Injection is a separate process altogether that occurs during a stroke (usually near the end of compression stroke), as does combustion (usually begins in the end of the compression stroke and continues into the power stroke).
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