Important of Intercooler

Intercooler are installed near the front bumper so that it continously comes in contact with the cold air from outside.The function is to reduce the air temperature that goes into the car engine.
The hot air from turbo engine goes into the intercooler, then flows through the high surface area vanes, causing heat to be lost through dissipation. The air then flows out the other end of the intercooler at a lower temperature and then into the intake of the engine.
By reducing the engine's inlet temperatures, a denser air charge will enter the engine which enhances the combustion of the air/fuel mixtures. This can produce more horsepower at the same boost level and even more power at higher boost levels.


Intercooler performance is measured by the amount of energy (temperature) that can be remove from the inlet charge air as well as the pressure drop across the entire system. It is important to consider the entire intercooler system to determine the intercooler performance:

• How big the intercooler surface area
• The intercooler internal passage volume
• The lowest possible the pressure can drop
• The highest possible the intercooler core efficiency
• It should matched to the turbocharger air delivery

Blow Off Valve

A Blow-Off Valve(BOV) is a component present in turbo engines with function to release a pressure. It is located right before the throttle body.
Actually it is a vacuum operated valve which releases air to the atmosphere or back into the intake.

It helps to protect our turbo system from 'compressor surges'.
These surges occur when throttle pedal is released while under turbo boost, normally when we changing gear.
When the throttle plate is closed, the high pressure air in the intake system is trapped by the throttle and a pressure wave is forced back into the compressor.
With no place to go, the compressed air will pushes back against the turbo, possibly damaging it.
The Blow Off Valve will react quickly to this situation and release the compressed air.

So, the turbocharger will keeps spinning even the throttle plate is fully closed.
Once the driver presses the throttle pedal once again, the turbocharger - which is still spinning - will keep on providing the optimal power .