10% FUEL SAVING ON AVERAGE

What is Surbo? Achieve red line by 1/2 throttle for manuals, and higher revs than usual for autos! Surbo price in Singapore Surbo in various countries Why choose Surbo? More horsepower with Surbo How Surbo works user-reviews-Surbo cars-fitted-with-Surbo

How To Get Higher Engine Rpm

Below is a testimonial from the owner of a 4AT Nissan Latio with Surbo:"My dad in law says more power. RPM can hit almost 7000 rpm haha."

Photo: Surbo fitted on the Nissan Latio

To get higher rpm, there must be faster air flow, so that the pistons are not held back. The Surbo helps to take in more air, to push the pistons to a higher speed.

1. After initial acceleration, upon slightly closing the throttle, the Surbo spins air within itself into a suction vortex (a pull force) and outputs the air as jets (a press force), and a third (suction) force comes when the accelerator is pressed again. With three forces, air passes through the engine faster. By 1/2 throttle, the engine will reach the rpm limit! This tug-of-war is won easily!

At this rpm limit, the fuel cut-off will occur for most fuel-injection engines. For carbureted cars, there is no such limit so the revs can be extended straightaway. For diesel vehicles fitted with Surbo, the red line on the rpm meter is achieved easily with the accelerator pressed halfway, and many achieve 5000 rpm.

The Surbo also helps automatic cars rev higher. Automatic gearboxes normally change up at 3000 rpm in D mode. However, the Surbo extends the revving in D mode, with half throttle sending the rpm meter to at least 4500 rpm for most makes, and even to the red line in the case of Kias and Hyundais, which have rather sporty gearbox programs.

For continuously variable transmission (CVT) cars, the rpm will go to 3500 rpm instead of 2500 rpm during acceleration, shortening the time to get to speed. At cruising speed, due to increased torque from the Surbo, the rpm may go lower than normal, indicating a higher gear ratio, but as soon as acceleration is needed, a light prod on the accelerator will cause the rpm to rise again (gear kickdown) for faster pickup.

Racing application for manual cars

If the rev limiter is removed, the revs can be extended by stepping further on the accelerator. At the original red line, since only half throttle is used, this means that a large part of the engine vacuum is still unused, and this can be used to pull more air into the engine, thereby extending rpm.

See the needle swing past the red line if you remove the rpm limiter

Examples of rpm-delimited Surbo-equipped manual petrol cars

Related page:

Surbo System's Energy Analysis shows how the Surbo can take your engine to its RPM red line with half throttle, and even past the RPM limit.

List of How To's for engines

  • How to get higher engine compression
  • How to improve engine efficiency
  • How to improve engine vacuum
  • How to improve hill climbing power
  • How to reduce diesel smoke
  • How to calculate tyre size
  • How to get better acceleration
  • How to get higher rpm
  • How to get higher top speed
  • How to improve air intake of engine
  • How to improve throttle response
  • How to improve engine power for automatic vehicles
  • How to improve engine power for diesel vehicles
  • How to extend engine life
  • How to make automatic cars sporty
  • How to reduce CO2 from vehicles
  • How to reduce engine knocking
  • How to reduce turbo lag
  • How to reduce fuel consumption
  • Videos:

    Watch this video showing how engine revs with Surbo

    Watch the video above showing how an engine revs with Surbo. Or watch it with the How it works page.

    Video of Volvo XC90 T8 with Surbo, sprinting to 130 kph

    Above: video of Volvo XC90 T8 with Surbo, sprinting to 130 kph.

    Video of Volvo XC90 T8 with Surbo, sprinting to 211 kph

    Above: video of Volvo XC90 T8 with Surbo, sprinting to 211 kph.

    Video of Volvo XC90 T8 with Surbo, sprinting to 224 kph

    Above: video of Volvo XC90 T8 with Surbo, sprinting to 224 kph.

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