Achieve red line by 1/2 throttle for manuals, and higher revs than usual for autos!

(To see how Surbo works for diesel vehicles, click here)

How Surbo Works For Petrol Engines

If a Surbo-equipped automatic vehicle is driven your way, the acceleration from rest will be instant, the revs will go a bit higher, and gear kickdown will be quick. The improvement will be as in the Dynamometer Test Results.

For manual vehicles, or if the automatic gear is held constant, it is possible to reach the rpm limit with just 1/2 throttle with the Surbo!

See the extreme revving power of a Surbo-ed engine at 1/2 throttle!

Watch the video above showing how an engine revs with Surbo. To return to this page afterwards, click the "back" button. Note the part-throttle press accelerator/ release accelerator slightly/ press accelerator action to activate the Surbo. A Surboed motorcycle has been chosen so that the throttle action and revving on the tachometer can be shown together.

In simple terms, for maximum power, press the accelerator to 50%, then release to 45% for a split second, then press back to 50% and then to 55% to rev high. You'll never need to floor the accelerator again. If aiming for less than maximum power output, you might try 40-35-40-45, or 30-25-30-35 and so on.

The Surbo is fitted with its output end towards the throttle, so that air flows through the Surbo towards the throttle and then into the engine. During initial acceleration, the air will go straight through the Surbo. Upon slightly closing the throttle, a back pressure occurs in front of the Surbo, so that the straight flows cross and take cover under the Surbo's pointed fins and become jets, matching the back pressure. Upon opening of the throttle during subsequent acceleration, due to the pressure ahead, the air streams going through the Surbo continue to take cover under the fins and jet, so the pressure is sustained, and quick revving results. By 1/2 throttle, the engine will reach the rpm limit! Cruising speed is reached sooner, so fuel is saved, usually about 10%.

How Surbo Works For Petrol Engines

See the extreme revving power of a Surbo-ed engine at 1/2 throttle!

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