Achieve red line by 1/2 throttle for manuals, and higher revs than usual for autos!

How to reduce fuel consumption

Below is a fuel economy report from the owner of a 2014 Mazda 3 equipped with Surbo. 22 km/l with Surbo in mixed driving (1/3 urban plus 2/3 highway) vs 17.5 km/l as claimed by car manufacturer for highway driving. Even when driving hard with Surbo and revving, the result was 17.5 km/l.

Surbo saves fuel for motorcycles

The Surbo gives more energy, enabling quick acceleration towards the more economical higher gears in a shorter time. Most customers report an overall improvement of 10% in economy. If driving on highways, the vehicle easily exceeds speed limits due to the higher torque, so less of the accelerator needs to be pressed. For automatic cars, rolling distance is longer with foot off accelerator, with engine rpm hardly dropping due to the Surbo system's air accumulation. The following cars have been made more frugal with Surbo:

Car	Fuel Consumption Before Surbo	Fuel Consumption With Surbo	Improvement	Remarks
Audi S5 4.2 2009	11.6-12.1 L/100km	9.9 L/100km	19%	Night driving, neighbourhood plus expressway
Audi S5 4.2 2009	15.7-18 L/100km	12.7-14.2 L/100km	20%	Daytime driving, neighbourhood plus expressway
Audi S5 4.2 2009	18-20.8 L/100km	15.2 L/100km	27%	Aggressive overtaking. All results with Surbo5
BMW '08 320	8-9 km/l	10 km/l		Mr Hakeem
Chery T11 1.6	9.5 km/l	10.5 km/l		Owner: Thomas G
Chevrolet Aveo 1.4	12 km/l	l7 km/l		Twin Surbo+cone
Daewoo Espero 2.0		+3 km/l	25%	Highway
Daihatsu '89 Charade 1.0			10%
Daihatsu '94 Hijet 1.0	7 days	8 days		days that $25 petrol lasts-
Ford '92 Laser 1.3 carb			10%
Honda '89 Civic GL 1.3	$0.15/km	$0.11/km	26%	Mostly highway
Honda '89 Civic 1.5 GL			10%
Honda '89 CRX			10%
Honda '03 Jazz	10-12 km/l	13-15 km/l		In City
Honda '03 Jazz	10-12 km/l	15-19 km/l		Same car, highway
Honda '06 Airwave	12 km/l	15 km/l		Mr Hakeem
Honda '08 Civic Type R			30 km more per tank
Honda Oddysey RB3 2.4	8+ km/l	9.2 km/l		Using Surbo5
Honda '16 Shuttle 1.5	5 days	7 days		Lady driver from Shuttle club: how long per tank of petrol lasted
Honda '08 Stream 1.8			50 km more per tank
Hyundai Accent 1.3A	10 km/l	12 km/l
Hyundai '96 Accent 1.5			15%
Hyundai '93 Sonata			10%
Kia '01 Rio 1.3	14 km/l	16-17.3 km/l	14-23%	Mostly highway
Kia '01 Rio 1.3	13 -14 km/l	14.1-14.2 km/l		Mr Teoh
Kia '01 Rio 1.3	13 -14 km/l	14.4 km/l		Mr Teoh, Twin Surbo
Mazda 3 2016	5.7 L/100km	4.5 L/100km	21%	80 kph expressway
Mazda 3 2016	6.5 L/100km	5.7 L/100km	12%	City driving
Mazda 3 2016	12 km/l	15 km/l	25%	Desmond Chee
Mitsubishi '93 Colt 1.6	12 km/l	15 km/l		T Yeo
Mitsubishi '98 1.6 MR			10%	Mike
Mitsubishi 2006 1.6 CS3 4 speed auto	11-12 km/l	13 km/l max		Customer who reinstalled Surbo in Toyota Wish
Mitsubishi 2019 Eclipse Cross 1.5 turbo	8-9 km/l	14.6 km/l max
Nissan 130Y		15.5 km/l		ES Fong, KL service centre
Nissan Presea 1.6	9 km/l	12 km/l		Twin Surbo+cone
Perodua Kancil 660cc	12.5 km/l	14.5 km/l		Gordon Goh
Peugeot 206 1.4	11.4 km/l	13.0 km/l		K Gn
Peugeot '89 405 1.6 carb	8 km/l	10.7 km/l
Peugeot '95 405 1.6 MPI	11 km/l	12.14 km/l	10%	1 Surbo
Peugeot '95 405 1.6 MPI	11 km/l	12.81 km/l	16%	Twin Surbo
Proton '97 Wira 1.3 carb	10 km/litre	12-13 km/litre		In city
Proton '97 Wira 1.3 carb*	12-13 km/litre	14-15 km/litre		On highway
Proton '98 Wira 1.6A	11 km/litre	13 km/litre		KH Tan
Seat '99 Salsa 1.0			10%
Subaru '00 Impreza 1.6			10-15%	Mr E Wu, 1 Surbo
Subaru '00 Impreza 1.6			25-30%	Mr E Wu, 2 Surbos
Subaru '92 Justy 1.0			15%	Cold tube added-Mr Teoh
Suzuki Baleno 1.3			10% or more	Mr Xie
Suzuki Swift 1.0	380 km/ 38l	420 km/ 38l		Rai, technician
Toyota Camry 2.0	450 km	500-510 km	11-13%	Per tank, Mr Liao
Toyota '02 Corolla 1.5 VVTi			50 more km per tank	Owner, vegetable grocer
Toyota Hiace 3.0 turbodiesel high roof	550 maximum	631		Mr Joe, per tank of diesel
Toyota '92 Starlet 1.0	13 km/l	15 km/l		A Tang
Toyota Tercel 1.5 twincam	17 km/l	19 km/l	+12%	90-100 km/h, Chile customers
Toyota Soluna 1.5	220 km	250-260 km	13-18%	1/4 tank, Mr Liao
Toyota Wish 1.8 2005	550-580 km	650 km max		per tank

*Note: this car belongs to the Kedah dealer Azman. Although it is manual, it's got cruise control too. Running without cruise control, the highway consumption was 14-15 km/litre, but when the cruise control was turned on, Azman could feel the accelerator being automatically depressed further from his foot, and the extra pedal travel brought the highway consumption back to the original 12-13 km/litre. This shows that with a Surbo, the driver will press less on the accelerator and this will contribute to a more relaxing drive, and of course more economy.

Other Reports

*'07 0.8 Chery QQ gained 4 km per litre with Surbo to hit 16 kpl.

*Proton Wira 1.3 manual achieved 20 km/l with Surbo.

Latest testimonials regarding fuel saving with Surbo:

Audi S5 4.2 2009 (Surbo5)

Mitsubishi Attrage/ Spacestar

Mitsubishi Eclipse Cross

Mitsubishi Lancer CS3

Nissan NV200

Subaru Impreza 2008 and newer.

Unspecified car belonging to Zaiizaiizaii

Unspecified car belonging to Yano

Unspecified car belonging to Jomeo

Other fuel economy reports

Mitsubishi Lancer CVT

Nissan Sunny Auto (Twin Surbo)

Subaru Impreza (Twin Surbo)

Suzuki Swift GL 1.3

Toyota Corolla '99

Here's how Surbo users can further reduce fuel consumption for their cars

1. Keep to the factory spec for the overall wheel diameter. This is the size of the rim plus tyres, and if you make the rims bigger, then you can use a lower profile tyre to keep to the original size. You can usually find this size on a sticker on the front door. If unsure, you can check with us. Likewise, you should use the recommended tyre pressure.

2. In between filter element changes, remove the element and shake the dust off to allow more air in.

3. For carburetor vehicles, have the spark ignition timing tuned to factory spec where adjustable. Also important is the CO (carbon monoxide) emission level--tune by computer to as close to 0% as possible.

4. If you are still using a wet battery, top up the battery level, as a lack of electrolyte means a smaller store of available electricity, so the alternator has to load the engine more and make it consume more fuel.

5. Straighten and shorten the air intake layout to minimize friction and bend losses. The Surbo should be fitted nearest to and most directly at the throttle (but before any minor air connection to prevent bypass), to get and deliver the maximum back pressure in the air intake. Note: for before-filter installations, although the filter is in between, these have the advantage of free air before the Surbo.

6. Try to connect to cold air wherever possible as colder air has a higher density. For example, you can connect the air inlet to an opening in the grille.

7. Upgrade to Twin Surbos as these simply have better low end torque and have stretched the mileage on single-Surbo cars. The Twin has been shown by the dynamometer to deliver 10% more torque between 2500-3000 rpm so if you spend more time in that region (eg. during cruising) it will give better economy than the single Surbo.

8. Our general guideline is that maximum torque at the low and mid rpm range go hand in hand with fuel economy, because most of the driving time is spent in these ranges. It may not be advisable to shift gears upwards at too low an rpm, as the starting rpm in the next gear may be too low for power. So, you will have to press more on the accelerator, and end up spending more time in the low gears that are not economical. The rate of fuel injected at any moment is proportional to throttle travel x rpm x no. of cylinders. For a given car it must depend mainly on throttle travel (how much you press on the accelerator) and rpm (which you can control via gear selection). The total consumption is the sum of throttle travel x rpm x time spent in each gear over the journey.

9. If your vehicle is manual, have the clutch adjusted lower so that gearchanging can be faster and more Surbo power preserved during the gearchange. If the gearchange and clutching is in completed in one second, it syncs with the Surbo system which also takes a second to charge.

If you are not already using Surbo in your vehicle, and have a problem with fuel consumption or a lack of power, you can contact us for advice. If you have just purchased a used car, we can help you check if it is the existing modifications that are causing the problems.