Other Ways to Improve Harleys

 

1. COPY THE ENGLISH J.A.P. DESIGN:

IN 1933, WHEN J.A.PRESTWICH (J.A.P.) OF TOTTENHAM, ENGLAND, WERE BEATING EVERYBODY ON THE SPEEDWAY TRACKS, INCLUDING HARLEY DAVIDSON, HARLEY D. PURCHASED A J.A.P. MOTOR LIKE THIS ONE (below left) AND BACK-ENGINEERED THEIR OWN VERSION, RETAINING THE AMAL CARB AND LUCAS MAGNETO (below right).

Story here: http://kioteegarage.blogspot.co.uk/2012/03/history.html

1936JAP harleyspeedway

 

2. THROW IT ALL AWAY EXCEPT ONE TOP END AND PUT THE TOP END ON A BSA M20 BOTTOM END AND RETAIN BSA GEARBOX:

ShovDBBPHD-bsa

DSC01965

Richard Tunstall built this board-track style machine with the front barrel and head from a 1340cc Harley; a Mikuini carb; BSA Bantam forks; Fantic rims; Yamaha hubs; Kawasaki brakes and a home-built frame. The rear master cylinder is from Suzuki Hayabusa; front master cylinder is from an Aprilia. The crankcases are BSA M21 and the crank and connecting rod are BSA M20. Note pushrods are now parallel, so rocker cover, pushrod tubes, tappet blocks and cam followers all had to be machined. He went on to re-profile some BSA Gold Star scrambles cams to replace the M21 cams.

Thanks to Corpses From Hell Blogspot: http://corpsesfromhell.blogspot.co.uk/2011_11_20_archive.html

Article in Classic Bike Guide Feb 2012 - issue 250: http://www.themagazineman.co.uk/images/Classic_Bike_Guide_February_2012.jpg

 

3. CHOP OFF ONE CYLINDER.....

 

TROUBLE

troubleengine

Goldammer Cycle Works' original single-pot Harley with supercharger replacing the rear cylinder. The company is in Canada.

http://www.goldammercycle.com/collection/trouble

http://thekneeslider.com/archives/2005/11/23/goldammer-cycle-works-wins-with-trouble/

Numriser0063-1_zps14b32845

NORTORIOUS

notorious2 notorious3

Roger Goldammer's 965cc single cylinder with supercharger and high pressure injector...The rear head has been reversed and fitted on the front cylinder, producing 83 horsepower (American), whereas the original Twin Cam 2-cylinder engine produced 63 horsepower. The engine is rotated back 15 degrees to make the cylinder more vertical.

http://www.goldammercycle.com/collection/nortorious

http://www.motorcyclespecs.co.za/model/Custom%20Bikes/nortorious_by_goldammer_cycle_wo.htm

http://thekneeslider.com/archives/2007/08/08/notorious-by-roger-goldammer/

http://ruoterugginose.blogspot.co.uk/2011/12/goldammer-nortorious.html

 

GOLDMEMBER

Custom Motorcycle Photographs

Goldammer acheived 164 mph at Bonneville salt flats in 2008 (a land speed record) with this single-cylinder, supercharged 965cc single.

http://www.goldammercycle.com/collection/goldmember

http://www.zimbio.com/Motorcycles/articles/-a0WZL-A0Oo/Specifications+GOLDAMMER+CUSTOM+960cc

 

SLOTARD

JesseRooke_1

 

 

Jesse Rooke's ingenious variation on the single-pot Harley, "Slotard" with the gearbox where the rear cylinder normally is, allowing a very short wheelbase.

http://www.rookecustoms.com/designs.html

http://thekneeslider.com/archives/2006/05/05/jesse-rookes-slotard/

 

4. THROW AWAY THE TOP ENDS AND SUBSTITUTE NICE BRITISH TOP ENDS

tumblrwheelsandheels

 

Unknown top ends - look a bit like Ariel....on a Harley 45 bottom end....if you know what they are, please email me: gstray@btopenworld.com

Thanks to Corpses From Hell Blogspot: http://corpsesfromhell.blogspot.co.uk/2011_10_23_archive.html

See PAGE 10 - Anglo-American V-Twins for more of these

 

5. ADD A CYLINDER

W3-Feuling-b-1_zps9e98efc9 anzani

This is a Feuling W3. The W3 (as opposed to V2 ) engine built by Jim Feuling and is similar to a W3 built by Anzani in 1906. It produces 150 horsepower according to the Feuling Motor Company and displaces 150- cubic inches (2458cc).

http://www.prweb.com/releases/Feuling/W3/prweb4931374.htm

 

6. THROW AWAY TOP ENDS AND INSTALL HOMEMADE TOP END WITH CAR PISTONS AND VALVES

"AMERICAN BIG BLOCK" Built in 1984-85, by Larry Sexton and Kenny Lyon in Torrance, California. Using the pistons and valve-train from a big-block Chevrolet V8 engine (that varied from 5.7 to 7 litres capacity), with one-off cylinders and heads

shovelchev2 shovelchev1 shovelchev

http://www.jockeyjournal.com/forum/showthread.php?t=5529&showall=1

 

7. THROW AWAY TOP ENDS AND INSTALL KOSLOW OHV CONVERSION

koslowmotor_zps818f1fac koslow_zps221af2df

"Andrew Koslow was an engineer and a competiton hillclimber for Excelsior Henderson in Chicago.... they were the Schwinn bicycle company as well. The Koslow bicycle shop still exists in Chicago run by Andrew's 3rd and 4 th generation offspring! After Schwinn stopped building motorcycles in 1931, Koslow adapted the top ends from the factory hill climb race bikes to VL Harley and possibly other bottom ends. My conversion is mounted on a UL flathead bottom end.
It displaces 84 cubic inches. It goes. The actual Koslow heads are very similar to the Super X hillclimbers but are bigger. You may be aware of a legend named Pop Dreyer. He was a factory Indian racer. He mastered the Flxi sidecar and was a genius welder and fabricator. He began as a teenager welding headers in Duesenberg's race shop! Anyway, he also built quite a few midget race cars in the thirties and used Koslow top ends."

Source: http://www.britishironworks.com/2010_07_01_archive.html

 

8. THROW AWAY TOP ENDS AND MAKE OVERHEAD CAM TOP ENDS

smallhog1

Stan Dishong converted a panhead to overhead cam in the late fifties...he cast the cylinders and heads himself.

 

9. REPLACE THE ENGINE WITH A HOMEMADE V-TWIN

hummer-1

After WWII, Harley Davidson obtained the plans for the German DKW engine and produced a machine that became known as the Hummer. This is a circa-1947 example ...the engine has been junked and replaced with o homemade v-twin, using Briggs and Stratton cylinders. Practically everything else is homemade. Note you can see the right through the crankcases and gearbox cogs turning....see video

 

10. CHOP THE END CYLINDERS OFF A SMALL-BLOCK CHEVROLET, MAKE SOME CRANKCASES AND STICK CYCLE PARTS ROUND IT.

This is the 96 cubic inch (1573 cc) Supercycle SuperVee made by Nostalgia Cycles of California. There were many problems with these.

 nostalgia-twin supervee003supervee001

 

11. COMPLETELY REDESIGN THE AIR-COOLED 45-DEGREE V-TWIN CONCEPT

CONFEDERATE:

Confererate Hellcat: 2,163 cc; weight: 500 lbs; 132 BHP; $55,000

Confederate Hellcat Combat: 2,163 cc; weight: 490 lbs; 160 BHP; $72,000 2012 holder of Bonneville landspeed record for unfaired, naturally-aspirated pushrod v-twins over 2,000 cc: 172.211 mph.

Website: http://confederate.com/

confederate-x132-hellcat-fighter-extraordinaire-photo-gallery_1

Full size image: http://s1.aecdn.com/images/news/gallery/confederate-x132-hellcat-fighter-extraordinaire-photo-gallery_1.jpg

Bonneville 2012 :

 

 

ECOSSE

Ecosse Heretic: 1966cc; weight: 452 lbs; horsepower: 130 at rear wheel; price $80,000

Ecosse Iconoclast: 2000cc; weight: 460lbs; horsepower: 135 at rear wheel; price: $86.000

Ecosse Titanium series: 2100 cc; weight: 440 lbs; horsepower: 200 at rear wheel; price: £133,000

Article: http://www.motorcyclistonline.com/features/122_0912_the_ecosse_heretic/viewall.html and http://www.topspeed.com/motorcycles/motorcycle-reviews/ecosse/2008-ecosse-heretic-titanium-ar48385.html

Website: http://www.ecossemoto.com/intro.htm

ecosse_heretic

Heretic designer:

 

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