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Operation
The supercharger is designed to increase the air pressure and density in the intake manifold. When this air is mixed with the
correct amount of fuel the result is more power from the engine. The supercharger provides an intake manifold air pressure of up
to 65.8 kPa (13.9 psi). The supercharger is a positive displacement pump and is directly driven from the engine drive belt system,
an increase in intake manifold air pressure is available at all engine speeds.
The charge air bypass valve is an electrically operated valve that is attached to the supercharger housing. The valve is controlled
by the engine control module (ECM). The ECM determines when pressure from the manifold is routed to the bypass actuator.
The charge air bypass valve allows pressure from the manifold to open the bypass valve and lower boost pressure during specific
driving conditions. The open bypass valve reduces the pumping effort of the supercharger, thereby increasing the fuel efficiency in
light load operations.
Powertrain Cooling
Coolant Type
40/60 coolant/water mixture of clean, drinkable water and use only DEX-COOL® Coolant.
Engine Cooling System
A surge tank is recommended for removing air from the engine coolant, but as long as the radiator or surge tank is the highest
point in the system, then air will be evacuated from the coolant. The highest point, meaning that either the radiator or the surge
tank have a portion higher than the top of the cylinder heads. If they are not, then air can be trapped within the cylinder heads and
cause portions of the cylinder heads to overheat, which will be detrimental to engine performance and longevity. Coolant is drawn
from the radiator outlet and into the water pump inlet by the water pump. Some coolant will then be pumped from the water pump,
to the heater core, then back to the water pump. This provides the passenger compartment with heat and defrost. Coolant is also
pumped through the water pump outlet and into the engine block. In the engine block, the coolant circulates through the water
jackets surrounding the cylinders where it absorbs heat.
The cylinder head air bleed needs to be routed to the highest point in the cooling system. This will assist in removing air from the
cylinder heads.
Cylinder Head Air Bleed
Pump Outlet
Hose 84214922 can be purchase to obtain the heater inlet/outlet quick connects, when creating a custom installation.
Heater inlet/outlet
LT5 Dry Sump Engine Installation
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
Pump Inlet
19417106
IR 03OC18
PART NO.
DATE
03OC18
Initial Release - Rocko Parker
7
SHEET
REVISION
36
OF
AUTH
N/A
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