Belgian Classic TT 2013

The Golden age of gas stations

Read & see more: pleasantfamilyshopping - The golden age of gas stations

Classic trial Gressenich 2013

All photo's by Lieve (copyright) 2013

KLG spark plug advertising 1950

Ariel twin motorcycle advertising 1950

Ferodo brakes - advertising 1950

Douglas motorcycle advertising 1950

Royal Enfield - 350 Bullet advertising 1950

Vintage motorcycling magazine 1950 TT IOM edition

GEOFF DUKE winner 1950 TT senior Norton

5 Stroke engine by Belgian inventor Gerhard Schmitz - Ilmor

Info: 5-stroke-engine.com or 5-takt-motor.com
Info: jodocy-schmitz.com

The engine concept, which was invented by Gerhard Schmitz, has been developed by Ilmor into a working engine using a rapid prototype cast cylinder head, a machined from solid cylinder block and separate electrically powered oil and water pumps. Two overhead camshafts operate the conventional coil spring valvegear with the HP camshaft running at 0.5 x crank speed and the LP camshaft running at 1 x crank speed. The engine is also turbocharged to increase the engine rating.

5-stroke performance figures

  • Engine capacity 700cc (turbocharged)
  • Peak power 130 bhp @ 7000 rpm
  • Peak torque 166 Nm @ 5000 rpm
  • Fuel consumption of only 226 g/kWh

Advantages of the 5-stroke concept

  • A secondary cylinder provides an additional expansion process enabling extra work to be extracted, hence increasing thermodynamic efficiency.
  • The engine runs an overall expansion ratio approaching that of a diesel engine – in the region of 14.5:1
  • Minimised pumping work due to the downsizing effect from highly rated firing cylinders.
  • The compression ratio can be reduced to delay knock onset without a reduction in performance.
  • Because the firing cylinders can be very highly rated, the engine is relatively compact.
  • The fuel consumption does not rise as rapidly with increasing BMEP, as retarding rejects more energy into the expansion cylinder.
  • The engine uses 100% conventional technology and so requires no new manufacturing techniques.

Principle of operation

The 5-stroke concept engine utilises two fired cylinders (High Pressure - HP) operating on a conventional 4-stroke cycle which alternately exhaust into a central expansion cylinder (Low Pressure - LP), whereupon the burnt gases perform further work. The LP cylinder decouples the expansion and compression processes and enables the optimum expansion ratio to be selected independently of the compression ratio.
Running of the concept engine has produced impressive fuel consumption readings over a very wide operating range. This is because at the onset of knock a greater percentage of work can be extracted in the LP cylinder, giving a degree of self compensation.

Text via: ilmor.co.uk

Info: ilmor.co.uk

Billy Al Bengston - Art & Motorcycles

Billy Al Bengston on a his BSA Victor motorcycle in the Ballona Wetlands, Marina del Rey, California, 1966. Image courtesy of and © Billy Al Bengston
Via: getty.edu

Via: lonecubcrywolf.blogspot

Via: venice-in-venice.com


Billy Al Bengston, Skinny’s 21, 1961 signed with initials and dated ‘B.A.B. / 1961
Via: jockohomo

Sonny, 1961, Billy Al Bengston. Oil on Masonite. 36 x 36 in. Billy Al Bengston Studio Holdings. © Billy Al Bengston. Photo by Brian Forrest 

Via: getty.edu

Big Jim McLain, 1967, Billy Al Bengston. Polyurethane and laquer on aluminum. 60 x 58 in. Collection of Joan and Jack Quinn. © Billy Al Bengston 

Via: getty.edu

Billy Al Bengston’s studio at Clark Street and Santa Monica Boulevard, Los Angeles, 1957. Image courtesy of and © Billy Al Bengston  
Big Jim McLain, 1967, Billy Al Bengston. Polyurethane and laquer on aluminum. 60 x 58 in. Collection of Joan and Jack Quinn. © Billy Al Bengston - See more at: http://blogs.getty.edu/pacificstandardtime/explore-the-era/worksofart/big-jim-mcclain/#sthash.hC9cGXp9.dpuf

Via: getty.edu

B. A. Bengston official: billyalbengston.com
Info: wikipedia - Billy Al Bengston