Why choose Surbo? With and without Surbo Achieve red line by 1/2 throttle for manuals, and higher revs than usual for autos! What is Surbo? Surbo price in Singapore

FAQ on Surbo

1. What is the Surbo used for?

A: The Surbo is for pulling in air from the atmosphere more quickly through the air filter, to match rapidly increasing fuel pressures during acceleration. The result is that the rpm limit is achieved with just half throttle, fuel consumption is reduced by 10% on average, and exhaust emissions including CO2 and diesel smoke are lowered.

2. Can the Surbo be fixed for diesel engines?

A: Yes, please refer to diesels regarding advantages of Surbo for diesel vehicles.

3. Can the Surbo be installed for fuel injection engines?

A: Yes, it works for most engines, EFI or carbureted.

4. Can the Surbo be installed in a very old car?

A: Yes, as long as it does not have any major problem and the Surbo installation is airtight. Let us check your engine and replace any broken air tubes around the manifold or engine oil compartment before fixing the Surbo.

5. Is it easy for the Surbo to be fixed?

A: Yes, with our experience, the time taken for Surbo installation is around 1 hour per car.

6. Which parts of my engine will be removed before installing Surbo?

A: The air filter and the main air pipe after it will be taken off first. The Surbo will be installed in a suitable cylindrical section in that, and after that as far as possible all parts taken off will be reassembled like the original. We will inform you beforehand of the visible changes if any, before starting the job.

7. Will the Surbo replace my air filter?

A: No, the Surbo normally does not replace any original part. It may be inserted in the main air pipe after the air filter, or in the filter box outlet, or inlet, with suitable rubber adaptors. If the original air filter case has been replaced entirely by a round one on top of the engine so that there is no pipe to put the Surbo in or on, we may request for the original air filter setup.

8. Can the Surbo be installed with an open cone filter?

A: Yes, if there is a pipe section in the air intake.

9. Do I have to modify my engine for Surbo installation?

A: No, normally no cutting or mods are necessary for Surbo installation. In most cases it is better to keep it all original as the materials are of better quality, and it may also be easier to fit the Surbo on original equipment. However, if some parts of your engine has been changed by a third party, and there is any rectification necessary, we will inform you before the job commences.

10. Can I install the Surbo myself?

A: Yes, with a guide from us, if there is no Surbo dealer in your area. After that, if you like, you can apply to become a dealer in your area.

11. Can the Surbo be put on a motorcycle?

One 250 cc Kawasaki with Surbo revved to 16000 rpm

A: Yes, please refer to Surbo for motorcycles.

12. How can I remove the Surbo?

A: The Surbo is easily removed in ten minutes with simple tools like a screwdriver.

13. Before servicing, should I remove the Surbo?

A: Usually the Surbo's installation spot is untouched by the mechanic. However, if it's a major service, you might like to remove it with simple tools such as a screwdriver. After servicing, we recommend that you ask your Surbo dealer to refit the Surbo. Otherwise you can DIY if you had been instructed by the dealer the first time the Surbo was installed.

14. Will I be able to feel the improvement immediately?

A: Sure! No feel, no sale! With the Surbo, your engine will reach the red line on the rpm meter with half throttle if your car is manual. If your car is automatic, you will get a more sensitive throttle, higher rpm than normal if desired. The gearbox changes up or down easily too.

15. Can the Surbo give better performance, and a smooth sail?

A: Yes, click here for examples of better acceleration and higher top speed. Accelerating becomes easier even in the top gear so the trip time can be shortened for comfort.
The Surbo moves the engine smoothly with a moderate air pressure that gives more power to the engine, so that the accelerator is pressed less, bringing less engine noise. Engine vibration is reduced as the cylinders become more balanced as each of them gets this additional air pressure, whereas in a normal engine only the compression and ignition cylinders are under pressure and the intake and exhaust cylinders are not. This also reduces engine-induced vibrations at other parts of the vehicle. The reduction in vibration increases smoothness and efficiency of the engine, which aid fuel economy.

16. Is there anything else that I have to add to enhance the Surbo's performance?

A: There is probably no need, as the Surbo is able to deliver adequate performance on its own.

17. My car is already modified with added power. Can the Surbo increase the power further?

A: Yes, most of the time that is possible. Please refer to "The Real Thing".

18. How much acceleration power can the Surbo add?

A: Around 30%. For example, the owner of a 125 bhp Civic ESi (with Surbo) said it overtook his friend's 160bhp Civic VTi, by half a car up to gear 3. This shows that at low gears, the Surbo effectively raises acceleration power by 30% (=160/125). In terms of torque, the Surbo can raise it by up to 18% as shown by the Dynamometer Test. In terms of 0-100 kph timing, a Proton 1.5 EFI takes 8 seconds to 100 kph, down from 11 originally (this result was achieved two times, once by our dealer Ah Tee in Kuala Lumpur and another time by a customer).

19. Can 2 Surbos be installed in 1 vehicle?

A: Yes, that's called the Twin Surbo, that delivers 10% more torque than the single Surbo in the 2500-3000 rpm band, and thereby an advantage of 5% in fuel saving. This comprises of two aligned Surbos joined together with no more than 1.25 inches of space in between, totalling 11 inches in a straight line only. If you already have one Surbo and are satisfied with it, you can add another to form a Twin if space allows.

20. Does the Surbo require electricity?

A: No, it is worked by engine back pressure from slight closure of the throttle during acceleration.

21. Is there a switch to turn the Surbo on or off?

A: Your right foot is the only control. Please refer to How Surbo Works

22. What principle is the Surbo based on?

A: Please refer to How Surbo Works

23. How does the Surbo force air into the engine, and from where does it get the power?

A: Engine vacuum is initially used to pull air straight through the Surbo during acceleration, until at around 2500 rpm or at half throttle, the accelerator is released slightly to back pressure the Surbo to produce pressurizing jets, and a vortex. Upon subsequent acceleration on half throttle, the jets and vortex are maintained by the resultant pressure ahead, for added air flow.
The two following pages can also help answer this question.
1. Energy Analysis of Surbo System.
2. How Surbo Works

24. Will the Surbo damage the pistons?

A: No, this page shows that the ultimate pressure in the cylinders is actually lower with Surbo, as half throttle (moderate air compression) already brings the engine to the rpm red line.

25. Can the Surbo damage the engine?

A: No. The engine with Surbo does not have to work as hard as before, as it is aided by the air pressure from the Surbo. The increased torque means that the accelerator does not have to be pressed as much as before, so the fuel injected and heat created in the engine is less, and the likelihood of engine knocking is reduced. Therefore, with the Surbo the engine is likely to have a longer life.
Further reading:

  • How Surbo Can Help To Lengthen Engine Life
  • Surbo System's Energy Analysis
  • 26. Do I need to use 98 octane, or 92/95 octane after Surbo installation?

    You won't notice any difference in the octane in view of the Surbo's power!

    A: Normally, petrol with octane number (RON) that is too low can't be used in high compression engines, because the petrol under pressure can ignite itself, which can cause a flame coming down at the piston that is still going up. This is called engine knocking and can damage the engine. However, with Surbo, you can use petrol with a lower octane than recommended by the car manufacturer, because the accelerator is often pressed less, resulting in less fuel injected, so the chance of knocking is reduced.

    27. Can the ECU override the Surbo? What happens when more air than usual goes into the engine, so that the air-fuel ratio goes up? Isn't there supposed to be a constant air-fuel ratio?

    A: The ECU will inject fuel based on the accelerator pressure, as calculations on Wikipedia have shown. The Surbo acts (blows added air in) during acceleration only, when fuel pressure tends to be high, so the air fuel ratio is closer to the ideal situation. This is shown by reduced diesel smoke during acceleration, for example.

    28. Is there a difference if the Surbo is fitted before or after the air filter? If it is fitted before the filter, how is the air going to spin into the engine?

    A: The answer is the Surbo is activated by a backward air pressure from the engine, which is the same whether the position is before or after the air filter. This backward air pressure makes the Surbo jet and pressurize the air at its outlet, and that forms a vortex within the Surbo itself, which increases air suction. The driving feel of a Surbo fitted before or after the air filter cannot be easily differentiated.

    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

    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

    How the Surbo came to be

    Aftersales service and advice, on accessories or compatible vehicles

    User guide for Surbo

    Automotive engineering and other applications of Surbo

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