If the engine output is raised, say by enabling it to rev to a higher rpm, and at the same time the input is reduced in the process of doing that, won't the efficiency be doubly raised? In an automotive world where more power is normally possible only by increasing the fuel input, can this be possible?
The answer is yes! Using a Surbo, you will not need to press more on the accelerator to get more power, but you press less to get more power! The reason is related to how the Surbo is activated (see How It Works), with a relatively-closed throttle generating a back pressure at the Surbo, causing the Surbo to spin the air at high speed and creating a vortex, which raises air compression without altering the compression of the fuel. A relatively closed throttle also happens to give the signal to the car's computer for a lesser fuel input!
The usual way to increase efficiency in an engine is to raise its compression volumetrically inside the cylinder. However, there might be a practical limit to increasing the engine compression in petrol engines, lest it results in knocking (over-compression of petrol results in spontaneous firing before the spark plug is ignited). However, the Surbo can raise the air compression separately from the petrol, so the Surbo can raise the efficiency this way without causing a knocking problem. In fact, some customers with knocking engines, for example one driving a Chevrolet Captiva 2.4 automatic, said that with the Surbo, the knocking noises were gone.
In actual use, the Surbo is normally observed to bring the engine to the rpm red line with just half throttle (smaller input). If the rpm was delimited, the increase in output will be even higher, and the efficiency of the engine raised even more. The top speed for the average 1.6 engined car equipped with Surbo also goes up by up to 30 kph, which is usually possible only via light turbocharging or a variable high lift cam system such as that found in a top-end Honda. What is more surprising is that it was not that the throttle was already floored for these Surbo cars, but that they had reached the rpm limit without full throttle. All these point to more effective, more efficient engines when they are assisted by the Surbo.
For diesels engines, when they are fitted with the Surbo, we always observe that the engine goes to a higher rpm even using just half of the accelerator travel, indicating a higher output. As the amount of diesel injected depends on how much the accelerator is pressed, we can say that the input has been reduced. Therefore the efficiency of the diesel engine, which is output divided by input, has also been raised by the Surbo. So try the Surbo today, and see how efficient and fun your ride can become!
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
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
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
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 on racing gokart
Surbo on Honda Civic (runner up in Singapore race)
Surbo wins India race
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