The Surbo, which draws in added air to the engine and packs a pressure even from idle, brings the engine to the rpm limit with just 1/2 throttle! This spare power can be useful when driving upslope. Imagine your car on an incline, where its rear is being pulled down by gravity. If your car was unassisted, you will have to press more on the accelerator than you would on a flat road. With a wide-open throttle, you will end up using most of vacuum, which induces air flow into the engine, and even cause over-fueling, so your car would not accelerate much more. With a Surbo, you won't need to press as much, preserving the vacuum for more revs, so that you can change up to the next gear more easily. The Surbo's air pressure supports the engine, preventing it from losing too much rpm when the accelerator is released during a gearchange, for a quick shift. The resultant rpm in the next gear will be higher, so that there is more engine torque to continue revving up the slope. As the gear ratio between 1st gear and 2nd gear is about 9 to 5, it is advisable to let the Surbo push the engine a bit more in the 1st gear, so that the engine has an easier time in 2nd gear, and up the gears.
Daihatsu Terios: Climbing Sheares Bridge is much easier
Mitsubishi Spacestar up Mount Faber
Perodua Kancil with more hill climbing power
Proton Exora 1.6 Auto has no more problem with 1 km long slope
Proton Saga: better hill climbing with Surbos
Renault Clio 1.4 16V: uphill in 5th gear...
Subaru Impreza 2008 and newer.
Toyota Harrier up Bartley flyover
Toyota Wish climbs Genting Highlands easily
Watch the video above showing how an engine revs with Surbo. Or watch it 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.
More torque and BHP (dyno test)
Quick revving (1/2 throttle to RPM limit)
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