ACL Race Oil Pump - OPSB1478HP - Subaru EJ20 Ej22 EJ25

ACL RACE Series performance oil pumps and passenger car oil pumps assure constant and
uninterrupted flow throughout the engine’s circulatory system, ensuring the lubrication
system does not miss a beat. ACL RACE Series oil pumps are designed with high output
and high volume capabilities featuring gerotor sets that are precision machined from steel
copper alloy material. Fine tolerances ensure optimum pressure and flow.
Performance Oil Pump features:
• Increased flow and pressure characteristics
• Individually inspected and tested to assure pressure and flow characteristics

De levertijd staat op 3-7 werkdagen, dit is geldt alleen als de lagers op voorraad zijn in Nederland, wij updaten u direct na order, heeft u haast neem dan contact op met ons per telefoon of email voor de beschikbaarheid van de door uw benodigde applicatie. (levertijd vanaf de fabriek kan oplopen tot 2-3 weken, of langer indien geen voorraad)

• Prefixes explained
• H - ACL Race Series.(oe replacement)
• HX - ACL Race Series with 0.025mm (.001”) extra clearance.
• HD - ACL Race Series with location dowel holes.
• HXD - ACL Race Series with 0.025mm (.001”) extra clearance and location dowel
• HC - ACL Race Series Calico Coated
• HXC - ACL Race Series with 0.025mm (.001”) extra clearance. Calico Coated

Oil clearances are most accurately measured using micrometres and bore gauges.
Bearing wall thickness measurements are taken at 90 degrees to the partingline (i.e. at the crown of the bearing) using a micrometre with a ball anvil, for use on the curved ID of the bearing.
Vertical oil clearance is best measured by assembling the bearing in its housing, with bolts torqued to specification, then using a boregauge measure the assembled ID of the bearings at 90 degrees to the parting faces.
The mating crankshaft journal size is measured, and subtracting this measurement from the bearing ID bore size,gives the assembled oil clearance.

ACL Race Series performance engine bearings can be assembled with .00075-.001” per 1” of journal diameter (0.020-0.025mm per 25mm of journal diameter) plus .0005” (0.013mm).

As an example for a 2.000” (50mm) journal diameter, 2.000 x .001 =
.002 + .0005 = .0025” (50/25 x 0.025 = 0.050 + .013 = 0.063mm).
Bearings should not be polished with abrasive pads or paper, on the bearing surface, to change the oil clearance!