!914 Twin HD Cannon ball request

[Jerry Wieland]

Joe I have been looking at your piston and rod pictures again and they are showing evidence of an incredible amount of heat. Is this the result of t00 tight of clearance or is the there something else that is being over looked. Those rods and wrist pins are burnt blue and they are only exposed secondary to the heat of expansion. You can also see heat evidence in the discoloration of the nickel plating of the cylinders on the external surface.

This concerns me because I am building a Cannonball bike too and I am trying to find answers before the questions. With that much heat is any clearance enough.

Jerry

Here Joe goes again... making it all look easy....

[rwm]

Wolfe Pack Beware

Performance enhancments are now in process,

joe

joe what if you pull the exhaust nipples and run your pipe up into the exhaust port?

[aka HAWG]

and an added note lonnie - no one will see them while they are following slojo

aka HAWG

[Slojo]

Since several of the expensive period correct head lights on Cannonball 2010 became bowling balls rolling down the road into the gutter I have stuck with function over form with accessories such as head lights. These headlights don't look very attractive yet they should be effective and trouble free! Being rubber mounted, vibration will be a non-issue and as a bonus the mounting design allows easy removal for other necessary uses. With AA batteries available everywhere locating replacement batteries isn't an issue. They actually take on a better appearance when moved close to the fork although tank clearance becomes an issue.

joe

[jurassic]

seriously ugly.

[c.o.]

Joe!!! That's some serious lighting! Do you have a dimmer switch function?

[Slojo]

Wolfe Pack Beware

September rapidly closing in, some lose details on the Ghost must be resolved. Today was spent updating the lighting. I accidentally stumbled on Rayovac flash lights that will be used on the Ghost, they are powerful. Modern technology is impressive.

The focal adjusting lights use two AA batteries, four LED's, a magnifying len and are mounted on the same Hydraulic hose used to rubber mount the lights for the 2010 Cannonball rally.

One of these lights would be sufficient to guide the way through the night hours so why not four. With these stop in your tracks lights the Ghost will be out shinning for Wolfe Pack riders if the sun sets on our fun.

The lower end of the motor should be buttoned up this weekend and exhaust valve guides will become the largest hurdle. Performance enhancments are now in process, I am excited about the changes brought to this program.

joe

[c.o.]

[c.o.]

I just can't get enough photos of this bike!!!

[Slojo]

Sidetracked

Held up on the 14 Cannonballer waiting for parts, I took time to detail unfinished business on the Barber Century Race bike. Fuel line, axle adjusters and pedal cranks completed. I fitted a 12 twin chain drive left pedal crank arm with a .25" inch spacer on the right side aligning the two sprockets and a .71" on the left side taking up clearance. That completes the bike assembly except the magneto and a master link on the block chain.

After all my research I think that a 1912 single cylinder left side pedal crank forging is the same as a 1912 twin belt drive forging with different machine work. Single cylinder crank arms have a left side 5/8 flange that can be machined 1/4" shorter increasing the shaft length and moving the crank over to the right for alignment and a 1/4" spacer to maintain side thrust. I will wait until this is proven fact, then I may machine the single pedal crank shaft into a twin shaft.

joe

[10E]

Joe /Phil
Nothing to do for a few mins.
At 60mph with 4.074 and 86" wheel motor rpm = 3001.496
I tried a 15 tooth (3.802 ratio ) a few weeks ago on the central valley flat lands. It didn't want to pull it, it was raining and blowing a little, so went back to 14t. I've since made a change and going to try 15 tooth again on the Alturas 3 day pre-16
run. This is high desert with a couple of good passes to get over. My gut feeling is it won't pull at Alturas but maybe on the flatlands with no big headwinds.
Joe, With the condition (read horses) of your motor,I can't believe you will have any problems pulling a 3.802/3.900 ratio except for the fun and games of more clutch slipping to get going.
All the best.
Victor

"We are all in the gutter,but some of are looking at the stars" Oscar Wild 1854 - 1900

[fillibuster]

Weights and Measurements

Performance comes from well grounded ideas followed by weights and measurements. Currently a study is in process to determine where weight can be removed and measurements can be applied to achieve air volume increases. I will attempt to increase both air velocity and volume passing through and push the engine RPM higher.

A look into the numbers resulted in the following information.

Current gear ratio, 4.074. 14 tooth engine sprocket followed by 35 tooth countershaft . Next set 27 tooth counter shaft 44 tooth rear wheel sprocket . With an 86 inch circumference rear wheel (.50 % used tire). 70 MPH equals 3500 RPM.

35/14 X 44/27 =4.074 gear ratio,

1500 RPM equals 30 MPH, this is where the clutch is allowed full engagement.
80 MPH will require 4000 RPM with the 4.074 gear ratio. These are real world numbers to set as a goal for the current upgrades.

Tonight a piece of HD factory literature turned up a 3.9 ratio for flat lander twins. Something to think about.

joe

Good work Joe! It really isn't that complicated. I like to find rpm at 60 mph because that's a mile a minute, which is a step closer to revs per minute.
But the real wizardry is in what you do to that engine, man! Do those pistons loose, and I'll pray for your mag!

[Slojo]

Weights and Measurements

Performance comes from well grounded ideas followed by weights and measurements. Currently a study is in process to determine where weight can be removed and measurements can be applied to achieve air volume increases. I will attempt to increase both air velocity and volume passing through and push the engine RPM higher.

A look into the numbers resulted in the following information.

Current gear ratio, 4.074. 14 tooth engine sprocket followed by 35 tooth countershaft . Next set 27 tooth counter shaft 44 tooth rear wheel sprocket . With an 86 inch circumference rear wheel (.50 % used tire). 70 MPH equals 3500 RPM.

35/14 X 44/27 =4.074 gear ratio,

1500 RPM equals 30 MPH, this is where the clutch is allowed full engagement.
80 MPH will require 4000 RPM with the 4.074 gear ratio. These are real world numbers to set as a goal for the current upgrades.

Tonight a piece of HD factory literature turned up a 3.9 ratio for flat lander twins. Something to think about.

joe

[Slojo]

Rob

I have a local spring shop that will make any spring I need. The problem is their is just no room for the larger springs without cutting larger valve pockets in the fuel tanks. Then adding strength to the cam follower stud next the stud plate becomes week ....and so on you get the idea. Performance can be found in other areas. If I find enough power I will gear it higher. Most likely gearing will remain as is so the clutch won't have to be slipped any higher.

Early Scheblers have two air intake ports on the throttle body. Schebler carburetors don't have Venturi's they are primitive constant velocity carb's with spring loaded "choke system" at the intake end of the carb and the shape of the casting in the lower end of the carb. . First air enters the carb from the center of the float bowl stem picking up fuel from a single needle jet down in the float bowl. Next, the fuel rich
air mixture heads up to the mixing chamber where mixing takes place with the fresh intake air from the "normal" CV intake port, The blend then passes through a sized bore that carries it past the traditional throttle plate and into the manifold. The single needle jet is cam controlled for varying the mixture by way of lifting the needle jet when the throttle is opened.

joe

[rwm]

joe can you make the carb venturi larger for higher altitude? also steve L in maryland had springs made up.i think they are 40 lbs. they are not christmas tree in shape.