Turbo Intercoolers.
An Intercoolers task is to pass cool Air to the engine for the densest possible
charge
The intake air passes in through the airfilter,
from here it travels into the turbo compressor here the intake
air is compressed (to a "boosted level") and pumped into the intercooler. When
the air is compressed it gets hot, not from the hot turbo but due to the action
of compression. The intercooler (air to air) uses cold
air passing through the fins to cool the hot inlet air
that is passing through the inside of the intercooler. The inlet
air gives off heat to the cooling air. The cold air allows a more dense inlet
charge to pass through the throttle body butterfly, then into the inlet manifold, here fuel is squirted in at
high pressure from the injectors, where it mixes and passes into the combustion
chamber. It goes bang, and heats up, expands gives off energy and
passes out through the exhaust manifold and into the turbo. As the air expands
it drives the turbine wheel connected to the compressor side wheel via a shaft
this creates the boost. This exhaust gas then passes down and out the
exhaust!
The colder the air entering the engine the more HP as its a
denser charge loaded with more oxygen and fuel.
NOTE. Air to water intercoolers are
better than air to air, but more costly to make. Obviously water can soak up
more heat and transfer it than air!
There are two types of cores available for intercoolers:
TUBE AND FIN
Benefits:
Disadvantages:
- "effective" lower efficiency compared to bar and
plate
BAR AND PLATE
Benefits:
- 35% greater heat sink capability (meaning you effectively
COULD have a SMALLER intercooler when compared to the tube and
fin)
Disadvantages:
The tube and fin is a common everyday upgrade due to its low
cost.
The bar and plate is far superior BUT it costs more.
The intake air passes in through the airfilter,
from here it travels into the turbo compressor here the intake
air is compressed (to a "boosted level") and pumped into the intercooler. When
the air is compressed it gets hot, not from the hot turbo but due to the action
of compression. The intercooler (air to air) uses cold
air passing through the fins to cool the hot inlet air
that is passing through the inside of the intercooler. The inlet
air gives off heat to the cooling air. The cold air allows a more dense inlet
charge to pass through the throttle body butterfly, then into the inlet manifold, here fuel is squirted in at
high pressure from the injectors, where it mixes and passes into the combustion
chamber. It goes bang, and heats up, expands gives off energy and
passes out through the exhaust manifold and into the turbo. As the air expands
it drives the turbine wheel connected to the compressor side wheel via a shaft
this creates the boost. This exhaust gas then passes down and out the
exhaust!