V-Twin- Specials - more engine innovators

 

Tony West's 1000cc supercharged B31 V-twin

westbsa 

Greg Summerton's J.A.P and Tony West's 2 B.S.As....and the other side of the v-twin showing supercharger and sidecar

westjap westbsaa

Tony West, in South Australia, has built a 1,000cc v-twin from 1934 G11 BSA (1000cc sidevalve) crankcases. and post-war B.S.A. B31 top ends and a BSA frame. He also built a 940cc B.S.A. single, based on a B31. Tony races the bikes (sidecar speedway) and is a friend of Greg Summerton (see above). Greg says, "The single is through studded.....they pass right from the top of the heads down through the cases, past teh mains and out the bottom, through a big piece of angle iron and some more nuts....and it stays together quite well, 3 seasons now without a problem.....The twin has steel plates bolted inside the crankcases on each side of the crank that he built himself. Steel plates are screwed to the tops of the case mouths and the whole thing is through studded ... but not right thru the cases like the single." Thanks to Greg Summerton for this.

 

Mystery v-twin speedway engine

oldvtwin 

Shaft-driven overhead cams, leather universal joints and other Heath-Robinson mechnisms. Thanks to Greg Summerton for the picture....

UPDATE: Antero in Finland a.k.a.Chopper Man, has solved this one. the bike is a Packer, and is on display in the Sammy Miller Motorcycle Museum. It is a modern imitation of an early board-track racer - a 1000cc v-twin with 3 desmodromically-operated valves per cylinder.

packer1small2 

Here is the link:

http://members.chello.nl/~wgj.jansen/text/Packer.html

 

Panther v-twin

panther-1_zpsee6a04cepanther2

18_g-1129825827 

 

Thi is being built in the Netherlands - M100 or M120 topends on Harley cases.

http://www.motomania.nl/cgi-bin/db/db.cgi?db=nieuws&taal=en&w=1&gearchiveerd=ja

http://pantherista.blogspot.com/2010/05/v-twin-panther.html

 

Fantasy Goldstar v-twin

http://www.flickriver.com/photos/banditblue1200/2784666239/

 

Big Ned 3,000cc v-twin

ned10 BigNed

 

Built by Mark walker in Australia,a 3000cc v-twin with rotary valves and nitrous injection, it has a fork-lift clutch, front brake drum made from an oxygen cylinder, exhaust pipes made from fire extinguishers

Story:

http://onedaytech.blogspot.com/2008/12/mark-walker-big-ned.html

http://onedaytech.blogspot.com/2009/03/buiilding-of-big-ned.html

http://thenewcaferacersociety.blogspot.com/2010/04/big-ned-was-built-by-mark-walker.html

http://www.avcmc.iinet.net.au/2011_06/3000.html

http://www.perthstreetbikes.com/forum/f14/big-ned-86927/

 

"This is the Albion. The engine is home made. Crankcases are made from plate steel. The crank runs on massive bearings. I recall that it ran for several months without any oil in it. " I think this engine has M20 cylinder heads.

8fb92 DSCN0061

"Engine: by owner... 1027cc 120 degree v-twin, bore & stroke 94x74 mm, compression rate: next to nothing, solid vanadium valves of unknown origin (cut with an angle grinder & drill), Citroen 2CV pistons & split bore barrels (one slotted into a third of another), one BSA M20 head, one BSA M21 head, four BSA cams (M20, M21, B31), two left-hand AMAL monobloc carbs one homemade manifolds, plumber's PVC pipe between carbs and air-filters, Honda CB250 oil pump, Honda C90 points box and CB750/4 points, mild steel welded crank cases, BSA M20 crank with extended undersize homemade crank pin & 48 (!) roller bearings

Gearbox: '54 BSA casings, '48 BSA internals,BSA six-spring clutch

Exhaust: wheelbarrow handles as header pipes, Jawa 2-stroke silencer to collection box, twin Norton drag pipes jammed on

Frame: Jawa/Iron Bar/Kawasaki/BSA, lots of weld by owner with stick welder, braced with iron bar everywhere

Front: Jawa TLS wheel, one-off springers with Jawa springs & garden gate, pre-unit Triumph headlamp with Jawa lens, Jawa speedometer

Rear: BSA A10 QD wheel, 1960s rim

Bodywork: Unknown front fender, old British gas tank, homemade seat, unknown rear fender"

http://lh3.ggpht.com/-12-331FcFm8/TjPVC8oQmhI/AAAAAAABNOM/eY3a-SDokBk/DSCN0060.JPG

http://lh3.ggpht.com/-72J93EZ0tHM/TiMZ7VOGoRI/AAAAAAABMNA/J0he93zMZ_k/DSCN0061.JPG

 

 

1000cc Velocette "Vulcan" v-twin

velovtwin 

P7010141 

Bob Higgs took 9 months to design and 4 years to build build this 60-degree 1,000cc Velocette v-twin

http://www.velocettedorkingcentre.btck.co.uk/VelocetteVulcanVTwin-AReview

 

Chris barber's 1340cc desmo-Hog

desmoharleyenginedesmoharleyengine2

Ducati desmodromic top ends on Harley crankcases...

http://crossbreedcycles.co.uk/default.aspx

http://www.duccutters.com/ChrisBarber-DesmoHarley.tpl

http://www.motorcycledaily.com/2009/03/05march09_desmohog/

http://cgi.ebay.co.uk/Desmo-Harley-bobber-automobilia-collectors-art-Ducati-/200614313288?pt=UK_Motorcycles&hash=item2eb58b7d48

http://duncanmoore.myzen.co.uk/articles/Back%20Street%20Heroes/Desmohog.htm

 

desmohog1 

 

Royal Enfield v-twin.... Here is a 1930 K-model from Finland. It has a homemade 4-valve conversion and 1140ccm. Builders goal is to create "world's fastest Royal"

img0879yf 

kuva475kuva482

http://www.dotheton.com/forum/index.php?topic=8251.0

 

 

Hulster 8 Valve

9672067112_3355cc3e84_b 

seservice_hulster_02seservice_hulster_14

seservice_hulster_15

 

Stellan Egeland of S.E. Service in Sweden, has made this machine, with a Harley Knucklehead bottom end and top end completely designed and built by himself. the cyclinders are bronze and the heads aluminium: "The cylinderheads are of the semiradial type where no less than three exhaust rockers are needed to operate the valves that points 45 degrees away from eachother, the intake valves are inline."

S.E. Service website: http://www.seservice.se/mainpage_en.htm

 

Download video file oH Huster 8 Valve running: http://www.seservice.se/Hulster.wmv

 

Not forgetting...

Burt Munro's Indian Scout

munro1 

Munro2 

 

There are now some replicas that people get confused with the original:

munro3munro4

Burt Munro (who lived in Invercargill, New Zealand) started modifying his 600cc 55mph v-twin Indian Scout in 1926 and made his own flywheels, barrels and pistons, using sand from the beach and old tin cans for casting. He ended up with a 950cc displacement and went to Bonneville 3 times in the nineteen sixties and set 3 world speed records, and once qualified at over 200 mph. Burt's story has been made into a great film starring sir Anthony Hopkins, called The World's Fastest Indian

 

http://stevemginn.home.comcast.net/~stevemginn/munro/

http://www.flickr.com/photos/15119330@N05/favorites/page8/?view=md

http://lookittt.tumblr.com/post/399081805/worlds-fastest-indian

http://g-unitgallery.com/burt-munro-pictures

http://www.solarnavigator.net/films_movies_actors/burt_munro_land_speed_record_legend.htm

http://en.wikipedia.org/wiki/Burt_Munro

 

Britten V1000

In Christchurch, New Zealand in the early nineties, John Britten designed and built a v-twin that won several world speed records including fastest top speed at the Isle of Man (1993) and it also won against the big manufacturers at the Battle of the Twins at Daytona. The Britten V1000 was a Water-cooled 999 cc 60 deg V-Twin quad cam 4-stroke

britten3 britten2a

  britten1

 

The tech specs of the engine can be found here: http://www.britten.co.nz/info/infotechinfo.html

http://www.britten.co.nz/

http://en.wikipedia.org/wiki/Britten_V1000

 

JAP Double Overhead Camshaft v-twin made by Alec and Dave Card

japexpt 

The Card family, who now own the J A Prestwich name and are producing JAP v-twins, made this wicked DOHC 8-valve twin from 2 singles

http://www.japrestwich.com/

 

PAGE 7 - V-Twin Specials - Rotovator and Railway Engines

Return to Index page: V-TWIN OBSESSION