The Evolution of the Dellorto VHSB
Originally published Aug 1999.
COVER STORY
Fifty
Years
Inside
The
Rotax
Engine.
BY GEORGE ROBINSON
Karting since 1968
THE RECORD
- trophy 5 podiums at Le Mans 24h kart race (Record)
- build JAG test driver & technical consultant since 1998
- history Established Robinson Sport in 1974
The Workshop.
In the pursuit of tenths of a second, there is no room for approximation. Every Rotax Max engine that crosses our benches undergoes a forensic disassembly. We aren't just rebuilding; we are blueprinting within the strict confines of the official fiche.
The difference between a mid-pack finish and the podium often lies in the tolerances. Checking squish, port timing, and carburetor settings isn't a task—it's a ritual. We utilize decades of data, cross-referencing every measurement to ensure peak performance while maintaining bulletproof reliability for race day.
"We don't build engines to participate. We build engines to dominate the sharp end of the grid."
THE MAX COLUMN
HERITAGE INSIGHTS
Understanding Squish Bands
Originally published Mar 2004.
Le Mans: A Test of Endurance
Originally published Sep 2010.
Spares from Stock.
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Immediate Dispatch.
We maintain a comprehensive inventory of genuine Rotax Max and Dellorto components. From complete cylinder assemblies down to the specific needle valves required for precise jetting, our parts counter supports both the clubman and the professional outfit.
Cylinders & Pistons
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Dellorto Carburetors
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Ignition Systems
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Exhaust Components
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Rotax Classes Supported
Minimax
Cadet & Junior
Junior Max
13-16 Years
Senior Max
15+ Years
DD2
2-Speed Direct Drive