Feuling, HP+ lubrication system. Central/water-cooled engines

Compatible with chain drive and gear drive camshafts. Complete Feuling kit with the HP+ oil pump (588054), the special high-flow cam support plate (588056), an HP+ series hydraulic lifter set (566066) and a camshaft gasket quick set (588035).
• Quieter and smoother engine operation • Increases oil pressure, scavenging volume and engine oil flow • 30% more pressure gear volume than stock • 53% more scavenging gear volume than stock • 42% more scavenging volume with port, passage and orifice sizing matched to the crankcase • 46% more oil volume to the crankshaft bearing and connecting rods • Engine temperatures 15-25 degrees cooler • Oil temperatures 15-30 degrees cooler • 10-30 PSI additional oil pressure • Reduces wet sumping, blow-by and oily air filters • Magnets in the oil pump to help protect the gears and pressure relief valve • Test results show a gain of 2 HP and 2 ft/lbs of torque at the rear wheel on Milwaukee Eight • NOTE: FEULING test results show a 50% reduction in engine crankcase oil level.
Both the HP+ and RACE SERIES kits include the high-flow FEULING forged aluminium cam plate, made from 7075 aluminium, which is 50% harder and stronger than factory or Feuling OE+ cam plates. FEULING increases oil flow and volume by enlarging the oil pump pockets and critical oil passages, including matching the oil port holes throughout the cam plate with the port holes in the engine crankcase, increasing engine oil flow to the lifters, piston cooling jets, crankshaft and connecting rod bearings.
FEULING oil pumps are bench tested; the relief valve is seated and sealed at a minimum of 30 psi with full opening at 55-60 psi. The greater oil volume from the larger gears and correctly sized galleries, together with the pressure relief valve seat and seal of these oil pumps, is essential for correct lubrication system operation. The combination of the FEULING oil pump and cam plate eliminates the common pressure and scavenging issues associated with factory lubrication systems.
Due to the large volume of calls and enquiries requesting the groove for the M8 oil pump rear cover seal/O-ring, we have added the groove. (11/05/21). Although Feuling's in-house testing on healthy engines showed no benefit. The O-ring may have potential benefits in certain circumstances, such as engines with increased cylinder compression loss, poor sub-seal O-ring sealing, elevated crankcase breather hole and/or crankcase plug (see the PRO M8 TIP below) and wider clearances between the lifter and lifter bore.
- The HP+ SERIES kits include a 6061 forged aluminium high-volume oil pump (588054), Feuling high-flow camplate, HP+ hydraulic roller lifters, camshaft installation kit, camshaft bearing, camshaft/crankshaft bolts and washers, and assembly lubricant for the engine and fasteners.
See the optional ARP Feuling bolt kit 707073 available for the 588056 high-flow cam plate and HP+ or RS oil pump combination. ARP bolts for oil pumps 588053, 588054, 707378 and 707379 do not use washers.
OIL LEVEL NOTE - DO NOT OVERFILL THE OIL TANK It is important to obtain the correct hot oil level on your bike. Feuling recommends keeping the oil level at 90%-99% when hot.
Note: The oil filler on the M8 is on the right-hand side of the engine. Letting the bike idle or warm up on its side stand will naturally fill the engine sump and skew the oil level in the tank.
We recommend the following steps to achieve the correct oil level:
1. Check the oil level when cold.
2. Ride the motorcycle until it reaches operating temperature.
3. Switch off the motorbike whilst it is still in an upright position. (This ensures an accurate reading) 4. Once the motorbike is on its side stand, check the oil level.
5. Add or remove oil as necessary.
Note: Product by special order only. To place the order, contact your MCS sales representative.


Specifications


Brand
Feuling


Application
17-25 M8. Centre/water-cooled models


Sales unit
Kit


Packaging weight
0 kg


HS Code
84133080


Motorcycle family
TOURING, TRIKE


Original name
Feuling, HP+ Oiling System. Center/Water cooled engines