Yamaha R6 Dry Sump System

Yamaha R6 Dry Sump System

1. Pump

   • Chain Driven
     • Handles more torque
     • Parasitic loses
     • Needs lubrication
     • Lots of maintenance
   • Belt Driven
     • Efficient running
     • Low maintenance
     • Needs oil pump adapter
       • Extra manufacture
     • No lubrication required
   • Electronic Pump
     • Parasitic current drawing
       • Alternator upgrade needed
     • Needs wiring
       • Added to ECU

2. Oil Storage

   • Location
     • Low
       • Low CoG
         • Best performance option
         • Difficult Pan manufacture
     • Middle
       • Medium CoG
         • Medium manufacturing difficulty
           • Good compromise
     • High
       • High CoG
         • Easier sump manufacture
   • Capacity
     • Small
       • Lightweight
         • Potential failure
     • Medium
       • Medium performance
         • Good Compromise
     • High
       • Best performance
         • High weight

3. Sump Pan

   • Material
     • Aluminium
       • Lightweight
         • Expensive
       • Corrosion resistant
         • Less strength
     • Steel
       • Heavy
         • More expensive manufacture
       • More strength
         • Poor corrosion
   • Manufacturing
     • Machined
       • Very precise
       • More expensive
     • Cast
       • Cheap for mass production
       • Poor grain orientation

4. Oil Cooling

   • Is it needed?
     • Depends on calculations

5. Scavenge pump

   • 1 stage
     • Poor scavenging
       • Ease of design
       • Cheaper
   • 2 stage
     • Acceptable scavenging
       • Medium build difficulty
         • Medium scavenging
   • 3 stage
     • Best scavenging
       • More expensive
       • More complicated manufacture

6. Vacuum Regulator

   • Does the crankcase need regulating?
     • Yes