HOW TO IMPROVE ENGINE VACUUM
As we fit the Surbo to pressurize an engine, we have to ensure that
there are no openings between the Surbo and the engine. The requirement is that all the air must pass through the Surbo. This forces us to tighten all the vacuum connections, and the result is a perfect vacuum in the intake manifold. A perfect vacuum not only enhances air flow, it ensures the fuel pressure regulator, which is connected to a vacuum tube, is properly controlled. If that tube is loosely connected, the regulator gets a higher absolute pressure signal, and allows more fuel pressure to reach the injectors, and this can cause high fuel consumption.
The usual places where gaps or breaks can occur are the vacuum tubes, or some other air connection such as that to a vacuum or boost gauge with a bad joint that can cause a vacuum leak. Loose vacuum tubes can be tightened with a small cable tie and sealant applied where it is tied. Bigger tubes can be tightened with metal clips. The lower engine oil breather that is connected from the manifold to the oil chamber can also be loose for some cars, as the connection to the oil chamber can be a push-in type. The way to tighten this is to pull the connection out, put some tape around it, push it back tightly into its hole and apply sealant.
Enhanced air suction
Not only that, the air suction (at atmospheric pressure) from the throttle towards the air filter also becomes full, because no gaps are allowed. In fact, we make sure that all the engine's air suction is directed at the air filter itself so that minimal throttle openings are required for acceleration, and a relatively closed throttle means that more of the engine's vacuum is preserved for stronger pickup when needed.
Loose connections include the upper engine oil breather hose, an improperly-designed or badly-fitted air pipe after the air filter, absent clips, and a loose oil dipstick. Often, a less-than-accurate sports-type replica of the filter element may have a poor seal and air can come in through the sides, instead of coming in by the wire mesh in the centre, leading to a drop in air velocity through the air filter.
A very sensitive throttle results from our sealing along the manifold vacuum region and the air channels right up to the air filter, and since the Surbo is also able to press more air into the engine, there are immediate gains in torque and acceleration. Typically, the engine will be able to rev to red line on the rpm meter with just 1/2 throttle, indicating a real improvement in the passage of air, and proof that the vacuum capability of the engine has improved. Also, typical 1.6 litre cars have achieved an extra 30 kph in top speed with the Surbo, largely because the throttle never has to be floored due to the enhanced vacuum. We hope that you can read more about the Surbo and our vacuum-improving installation, and see how the Surbo can benefit your vehicle.
Surbo System's Energy Analysis shows how the Surbo improves the overall vacuum of your engine.
A new use for boost gauge: to activate the Surbo
List of How To's for engines
- How to reduce NOx
- 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
How Surbo transforms your car:
Watch the video above showing how an engine revs with Surbo. Or watch it in conjunction with the How it works page.
Above: video of Volvo XC90 T8 with Surbo, sprinting to 130 kph.
Above: video of Volvo XC90 T8 with Surbo, sprinting to 211 kph.
Above: video of Volvo XC90 T8 with Surbo, sprinting to 224 kph.
Higher top speed (easy cruising)
10% fuel saving
Max RPM with 1/2 throttle!
Instant auto kickdown
Reduced turbo lag
More power uphill
Less diesel smoke
Reduced CO2 emissions
Reusability (fits most cars)
Reduced overall expenses
VEHICLES FITTED BY TYPE:
Manual (by brand)
Automatic (by brand)
Big engines (Surbo5)
The newest cars compatible with Surbo
How Surbo feels (by car type)
How it works
Surbo vs other accessories
How Surbo can be used
Increased engine efficiency
Less knock (allows lower octane)
Less carbon deposit
Vehicle inspection compliance
Racing (runner up)
Surbo wins race
On-site service in Singapore
During the installation
Check here for days closed
CALL TO CHAT
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Isle of Man
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