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
2. THROW IT ALL AWAY EXCEPT ONE TOP END AND PUT THE TOP END ON A BSA M20 BOTTOM END AND RETAIN BSA GEARBOX:
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.....
Goldammer Cycle Works' original single-pot Harley with supercharger replacing the rear cylinder. The company is in Canada.
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.
Goldammer acheived 164 mph at Bonneville salt flats in 2008 (a land speed record) with this single-cylinder, supercharged 965cc single.
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.
4. THROW AWAY THE TOP ENDS AND SUBSTITUTE NICE BRITISH TOP ENDS
Unknown top ends - look a bit like Ariel....on a Harley 45 bottom end....if you know what they are, please email me: firstname.lastname@example.org
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
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).
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
7. THROW AWAY TOP ENDS AND INSTALL KOSLOW OHV CONVERSION
"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."
8. THROW AWAY TOP ENDS AND MAKE OVERHEAD CAM TOP ENDS
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
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.
11. COMPLETELY REDESIGN THE AIR-COOLED 45-DEGREE V-TWIN CONCEPT
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.
Full size image: http://s1.aecdn.com/images/news/gallery/confederate-x132-hellcat-fighter-extraordinaire-photo-gallery_1.jpg
Bonneville 2012 :
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
Next page - PAGE 11 - V-Twins in Featherbeds
Return to Index page: V-TWIN OBSESSION