The usual places where gaps or breaks can occur are the vacuum tubes, a loose connection on vacuum tubes or air hoses, an improperly-designed or badly-fitted air hose after the air filter, a loose oil dipstick (as the oil chamber is connected to the air filter hose), or some other air connection such as that to a vacuum or boost gauge with a bad joint that can cause a vacuum leak. Often, a less-than-accurate sports-type replica of the filter element may have a poor seal and air can come in through the sides, instead of coming in by the wire mesh in the centre, leading to a drop in air velocity through the air filter. In order to get sufficient air suction through the air filter, the driver often has to press more on the accelerator.

Our experience at sealing such leaks may benefit drivers like yourself. As installers of the Surbo (air-suction turbo), we are very particular about such air leaks in between the air filter and the engine, as the Surbo requires a perfect seal between itself and the engine, so that all the air will pass through the Surbo for air compression to be possible. Due to the sealing of all gaps, the vacuum of the engine will be deepened automatically. In fact, we make sure that all the engine's air suction is directed at the air filter itself so that minimal throttle openings are required for acceleration, and a relatively closed throttle means that more of the engine's vacuum is preserved for stronger pickup when needed.

A very sensitive throttle results from our sealing along the manifold vacuum region and the air channels right up to the air filter, and since the Surbo is also able to press more air into the engine, there are immediate gains in torque and acceleration. Typically, the engine will be able to rev to red line on the rpm meter with just 1/2 throttle, indicating a real improvement in the passage of air, and proof that the vacuum capability of the engine has improved. We hope that you can read more about the Surbo and our vacuum-improving installation, and see how the Surbo can benefit your vehicle.

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