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

How the Surbo came to be

Having tried the gamut of car accesories and mods, the Surbo designer decided to create a vortex generator, to mimic the power of storms. Designs had to be original, and one day out of the blue in 1995, the shape of the Surbo came to his head. It was a new shape, though not one that he would think of, as the air would get choked in the middle. Nevertheless, it was put into metal, and opened in the middle to allow straight flow, and hopefully also some kind of vortical, cross flow. For his 1989 Peugeot 405 1.6, which had a 2 inch air pipe, he made a prototype. There was some effect, but not as much as desired. One day, while accelerating towards a traffic junction, where the lights were red, he decelerated momentarily, only to see the lights turn green in a second, and so he accelerated again. The power that resulted was astonishing. The next day, he repeated the sequence, and got the same effect every time. Later on, he also fixed it on a Ford XR3i, and other cars too, and the effect was similar, so he decided to leave his engineer job to venture into Surbo manufacturing. The Surbo was adapted to other cars, most of which had pipes slightly larger, with rubber adaptors. The common factor between all engines was the back air pressure that resulted when pressure on the accelerator was relaxed, and this caused the Surbo to emit crossed jets and then generate a vortex within. The Surbo designer has studied the Surbo for over twenty years on various cars, made a postulation, and explained it as follows:

How Surbo works

Current Surbo development car (Peugeot 508 1.6 154bhp, turbocharged)