Description
PM Tuning anodised blue Boost Bottle Chamber.
Function to absorb & release pressure pulses within the intake tract, assisting engine breathing. During the intake cycle, air is sucked through the intake manifold and into the port at high velocity. Because of this velocity, the air is said to have relative inertia. Now, when the intake valve closes, the kinetically charged air suddenly has nowhere to go, creating a high-pressure area. Naturally, the air wants to release its pressure in the easiest way possible, so it tries to shoot back out the way it came, creating a pressure wave in the opposite direction we want it. Then no sooner dose the wave begin to travel, the intake valve suddenly opens again leaving the motor to try and pull the pressure wave back in again. This dramatically effects low RPM, wastes energy and kills low-end performance. Now the same engine, but with a Boost bottle. Air goes down the manifold until the intake valve closes. The air, still all charged up with energy tries to escape back up the manifold but is met with a small port that has a residual vacuum. This vacuum being caused by the previous suction of the intake stroke, sucks most of the pulse inside the Boost Bottle, storing much of the pulseÆs energy. The intake valve then suddenly opens, creating a low-pressure area outside of the Boost Bottle. The gasses then shoot out of the Boost Bottle, directly into the intake system as a pressure pulse, instead of having to be pulled in by the piston. More air is then also pulled in from the manifold to completely fill the cylinderà This gives you an additional boost of power.
Another good use for the boost chamber bottle is as a catch tank for carburettor over flow pipes etc simply drill the indents around the top and direct all overflow hose into the bottle leaving the lower spigot to act as the drain.
