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Hartley Enterprises specializes In custom high performance engines for sport and recreational use.  The engines incorporate advance motorcycle engine technology to give unparalleled high horsepower and low weight ideally suited for competition and other ultimate performance applications.

 

 

BOLT 4

The BOLT 4 is a 16 valve L4 engine.  It utilizes the Suzuki Hayabusa head and incorporates race car  features such as a high capacity alternator, flywheel with an automotive race clutch, adapter for Hewland and other gearboxes, robust crankshaft, advanced dry sump oiling system and low crankshaft center height .  See BOLT 4 Specs. page for details. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

THE H1 MAXI V8

H1 MAXI V8. The MAXI IS the biggest, most powerful V8 based on motorcycle engine technology available anywhere.  

Specs? Dimension? Photos? 

See H1 MAXI V8 PAGE   (CLICK HERE!)

See H1 MAXI V8 MANUFACTURING  (CLICK HERE!)

 

 

 

 

 

  

 

 


 

  Hartley Enterprises working on the following projects:

  • 2000cc V4 engine for race applications
  • 900cc 3 cylinder high efficiency engine The target market is power generation for plug-in automobiles.  Design goal is 80 hp continuous and 50% thermal efficiency using improved adiabatic combustion and unique combustion pressure control.