The Spirit of Semtex

  Ottobre 1994

Spec sheet - Tech Stuff

Owner:...........................................Patrick Hook a.k.a. "Paddy" (heavily modified!)
Fabrication by:.............................................................Owner / Welbro Engineering
Chrome/Paint:....................................................................none - weighs too much


ENGINE
Builder:........................................................................................................Owner
Size/Type:.............................1232cc, short stroke, 4-valve, (was an Evo Big Twin)
Cases:........................................................................................Delkron, modified
Crank:.............................One-off S & S flywheels, modified and balanced by owner
Rods:...................................S & S Supreme Duty, bored out to take Cosworth pins
Pistons:............................Cosworth 90mm Formula One race car, heavily modified
Cylinders:................Stock, shortened, bored out, Beryllium Rings (no head gaskets)
Cam:...............................................................................................Fueling 4-valve
Carbs:....................2 x Weber IDF 40mm twin-throat racing, intakes by owner/Alan
Heads:...............................................................................4-valve Fueling, modified
Ignition:............................Interspan racing system, no external power supply needed
Air Cleaners:......................................................................................Pancake-type
Exhausts: ......................Titanium, computer calculated length, matched front and rear
Silencers: .........................................................................It'll make your ears bleed!


TRANSMISSION
Type:....................................................................................Four speed wide-ratio
Manufacturer:....................................................................................Quaife Racing
Clutch/Primary:.......................Bob Newby Racing belt, alloy clutch and front pulley


CHASSIS
Year/Type:..............1994, Owner/Welbro Engineering, 7020 Aluminium twin beam
Swing Arm:............Suzuki 1100, heavily modified. Will be replaced by Welbro item
Forks:.................................................................Kayaba Upside Down Grand Prix
Rear shock:.......................................................Kayaba Grand Prix, Titanium spring
Fasteners:.......................................................Titanium, through drilled, safety wired
Overall weight.............................................................................................310 lb.!


WHEELS/TIRES
Wheels:...............................................................Marchesini Magnesium Grand Prix
Brakes:.......................AP Racing Grand Prix Calipers/ Carbon Fibre or Steel Rotors
Tyres:.......Michelin Grand Prix, Wets, Intermediates or slicks (not available to public)


http://people.exeter.ac.uk/pbhook/harley.htm