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How Surbo Works For Diesel Vehicles

The sketch below explains how the Surbo works on a diesel vehicle:

Stage 1: `Accelerate: you must be accelerating, and not try to activate the Surbo system from a constant rpm, say 2000 rpm. For higher gears or greater loads, you can try it at a slightly higher rpm. (For heavier vehicles, which may have an rpm range of just 3000 rpm, aim proportionately lower).

Stage 2: ^P3, the back pressure due to the temporarily decelerating cylinders, causes the straight flow through the Surbo to turn into the lower-pressure area under the fins towards their pointed ends, and crossed jets are formed at their sharp tips, resulting in higher air pressure. At the same time when the accelerator is held to generate this P3, the vortex formed within the Surbo due to cross jetting increases air flow to keep vehicle accelerating.

Stage 3: As the accelerator is pressed slightly more again, the air keeps crossing due to the higher pressure P3 ahead, and so the jets stay to maintain the higher air pressure. Compressed air gives more power, so only a smaller accelerator input is required. This increases driving pleasure. It also saves fuel as the fuel injected will be less.

If no rpm meter is fitted, the speedometer can be used as a rough guide. The engine rpm can be calculated by speed divided by mph/1000 rpm or kph/1000 rpm. Check your vehicle handbook for gearbox info.

The diesel engine benefits from the Surbo, which serves to increase air velocity over a wider rpm range

Other advantages

The Surbo ensures that less partially burnt diesel is released from the diesel engine because the accelerator is pressed less for the same power. This will either mean less diesel smoke for older diesel vehicles, or less clogging in thoroughly filtered Euro 4 or 5 vehicles. This will mean less downtime required for programmed self-cleaining of soot within the exhaust system, and less risk of clogged sensors or an expensive replacement of an uncleanable particulate filter. This is especially important for operators who run short trips with the engines not properly heated up and burning diesel incompletely.

Related pages:

  • How to increase engine power for diesel vehicles
  • Surbo System's energy analysis for diesel engines
  • How Surbo transforms your car:

    Benefits using Surbo

    10% fuel saving with mixed driving and more on highways

    Faster acceleration, especially from standstill for automatic cars

    Higher top speed, which means easier cruising

    Higher RPM capability, rev limit possible with just 1/2 throttle!

    Instant automatic gear kickdown

    Safer, more confident overtaking

    Better hill climbing power

    Less diesel smoke, even with more speed

    Reduced CO2 emissions from vehicles

    Money saved, more than from fuel savings

    Transferability. Use your Surbo on your next car

    Lifetime warranty on both the Surbo and installation

    Technical Details

    How Surbo works

    What is Surbo?

    The Twin Surbo, 2 Surbos in series for even more low rpm torque

    Surbo versus other engine accessories and parts

    When the Surbo is most useful

    Dynamometer Test Results

    How Surbo increases engine compression at low rpm and prevents excessive compression at high rpm

    How Surbo increases engine efficiency

    How Surbo prevents harmful engine knocking

    How Surbo may help your engine so it can last longer

    FAQ: Frequently asked questions

    How Surbo works for diesel engines

    How Surbo's increased air density enhances diesel technology, and raises peak RPM

    Diagram: Surbo's effect on the whole vehicle

    Diagram: Surbo on petrol turbocharged engines

    Diagram: Surbo on diesel engines

    Diagram: Surbo on turbo diesel engines

    Vehicles using Surbo

    Some vehicles recommended for Surbo

    Automatic cars fitted with Surbo

    Manual cars fitted with Surbo

    Surbo5 for larger engines

    Petrol turbo cars fitted with Surbo

    Petrol CVT cars fitted with Surbo

    Petrol hybrid cars fitted with Surbo

    Petrol supercharged cars fitted with Surbo

    Natural gas car fitted with Surbo

    Diesel and turbodiesel vehicles fitted with Surbo

    Motorcycles fitted with Surbo

    Photos of Surbos installed in various cars

    Surbo sales

    Why choose Surbo?

    Surbo will pass vehicle inspections due to lower emissions

    30 day money back guarantee

    What happens during the Surbo installation

    List of Surbo dealers by country

    Buy Surbo online with installation guide, if there's no dealer near you

    Join us as dealer for your area

    Surbo racing

    Surbo on racing gokart

    Surbo on Honda Civic (runner up in Singapore race)

    Surbo wins India race

    About Us

    History of the Surbo company

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