Oil System Comparison

Milwaukee Eight Oiling Systems

HP+ AND RS HIGH VOLUME OIL PUMPS

OIL COOLED

•27% MORE PRESSURE GEAR VOLUME
•27% MORE SCAVENGE GEAR VOLUME

WATER COOLED

•30% MORE PRESSURE GEAR VOLUME
•53% MORE SCAVENGE GEAR VOLUME

HP+ AND RS OILING SYSTEMS (PUMP/PLATE) - OIL & WATER COOLED

•42% More scavenging with MATCHED OIL PASSAGES
•68% more oil to the crank and connecting rod
•15 -25 DEGREE COOLER ENGINE TEMPS
•15 -30 DEGREE COOLER OIL TEMPS
•10 -30 MORE OIL PSI
•Sump level reduction

RACE SERIES KITS INCLUDE:

  1. FULL TRAVEL SLOW SLOW BLEED DOWN LIFTERS WHICH ARE QUIETER & INCREASE RPM BEFORE VALVE FLOAT
  2. OIL PUMP IS BILLET 7075 ALUMINUM WHICH 50% HARDER AND STRONGER THAN OEM AND HP+, RED ANODIZED WITH LARGER LARGER SCAVENGE KIDNEY PORTING SCAVENGINGPROMOTING PROMOTING MORE CRANNKCASE SCAVENGING.

  • A = FEULING OIL HOLE MATCHED TO CASE HOLE, OEM has the hole too large creating a step AT ENGINE CASE
  • B = FEULING HAS OIL FEED HOLES FOR CAM THRUSTING SURFACES AND OIL GROOVE IN CAM BORE FOR COLD START UP, OEM ZILTCH
  • C = Feuling has 42% More scavenging with MATCHED OIL PASSAGE volume to engine case
  • D = FEULING CAMPLATES MACHINED FROM BILLET 7075 ALUMINUM WHICH IS 50% HARDER AND STRONGER THAN THE OEM CAST
  • E = Feuling sends 68% more oil to the crank and connecting rod
  • F = Feuling has larger kidneys promoting more oil flow and volume
  • G = FEULING HAS LARGE CHAMFERS ON PASSAGES ENTERING INTO CAMPLATE FOR A SMOOTH TRANSITION, OEM HAS SHARP EDGES

  • A = Feuling pumps HAVE larger deeper kidney ports, ON BOTH PRESSURE AND SCAVENGE WITH LARGER DIAMETER HIGHFLOW GEARS
  • B = FEULING PUMPS ARE MACHINED FROM BILLET ALUMINUM, hp+ FROM 6061 & RACE SERIES FROM 7075, OEM PUMP IS A CASTING. NOTE 7075 ALUMINUM IS 50% Harder & STRONGER THAN 6061 & OEM CAST MATERIAL, 7075 ALSO HOLDS TIGHTER TOLERANCE UNDER TEMPERATURES
  • C = Feuling Increased scavenge port passage by 42%, MATCHING VOLUME/BORES TO ENGINE CASE, OEM SEVERLY RESTRICTED
  • D = FEULING PUMPS SCAVENGE PORT PICK UP BORE AND INTERNAL PASSAGES ARE MATCHED TO ENGINE CASE, OEM HAS STEPS
  • E = Feuling pumps have magnets to help protect gears and relief valve FROM DEBRIS
  • F = FEULING PRESSURE RELIEF VALVE IS SEATED AND SEALED WITH FULL POP OFF AT 60PSI AND SET TO RE SEAT/SEAL AT MIN OF 30PSI The oem pump is assembled without testing and the latest oem design is unable to be tested

Oiling System Comparison

OIL PUMPS
Made in the U.S.A
X
X
X
Hand Measured and Matched Gear Sets
X
X
X
Preciesion Machined 6061 Oil Pump Housing
X
X
 
Preciesion Machined 7075 Oil Pump Housing    
X
2" Chrome Moly Gerotor Gears
X
   
2" High Flow Chrome Moly Gerotor Gears  
X
X
Red Anodized Oil Pump Housing    
X
CAMPLATES
Made in the U.S.A
X
X
X
Preciesion Machined 6061 Camplate
X
   
Preciesion Machined 7075 Camplate  
X
X
Hand Set and Tested Pressure Relief Valve
X
X
X
Red Anodized Camplate  
X
X
Enlarged Oil Passages  
X
X
Camplate Oil Ports Matched to Case Ports  
X
X
LIFTERS
Include Lifters  
X
X
Made in the U.S.A  
X
X
0.200" Travel  
X
X
Slower Bleed Down Rate    
X
Increased Roller Clearance    
X
BENEFITS
Increase Oil Pressure
X
X
X
Increases Horse Power and Torque  
X
X
15-30 Degree Cooler Oil Temperatures  
X
X
25-35 Degreee Cooler Egnine Temperatures  
X
X
ADDITIONAL INFORMATION
Includes Assembly Lube
X
X
X
Includes Quick Change Gasket Kit  
X
X

Twin Cam Oiling Systems