Mercury Racing HP850 SCi User Manual

SPECIFICATIONS
27
Engine Specifications
Model HP850 SCi HP1075 SCi
Displacement 9.1 liter (557 cid)
Crankshaft horsepower 850 1075
Crankshaft Kilowatts 634 802
Maximum RPM @ WOT
1.
5800 RPM 6000 RPM
Idle RPM in gear 800 RPM
Idle RPM out of gear 825RPM
Fuel pump pressure at key up 400 kPa (58 psi)
Fuel pump pressure at WOT 468 kPa (68 psi) 498 kPa (72 psi)
Minimum oil pressure @ stable idle
RPM (HOT)
Minimum ‑ 100 kPa (14.5 psi)
Minimum oil pressure @ WOT RPM
(HOT)
Minimum ‑ 375 kPa (54.5 psi)
Boost pressure (Maximum)
0.7 bar (9.9 psi) @
5800 RPM
0.9 bar (13.05 psi)
@ 6000 RPM
Engine oil temperature (Maximum
allowable)
140 °C (284 °F) @ 6000 RPM
Coolant thermostat 70 °C (158 °F)
Minimum block water pressure @ WOT
RPM
138 kPa (20 psi)
Maximum block water pressure @
WOT RPM
250 kPa (36.5 psi)
Fuel requirements
Refer to fuel or oil requirements in the
Specifications section
Oil requirements
1. The engines are equipped with built‑in rev limiters of 6000 RPM for the 850
SCi and 6250 for the 1075 SCi. The engine is performing normally if it will not
exceed these RPM's.

Mercury Racing HP850 SCi Specifications

General

Brand	Mercury Racing
Model	HP850 SCi
Category	Engine
Language	English