On the 25th of January 2008, Shane and Gordon Subloo travelled to Revetec's factory to test run the X4v2 engine in their HS4 trike for the first time. After initial preparation, Shane drove the trike through traffic to feel its responsiveness and acceleration as well as drivability. We then tested the trike at light throttle response where we found the engine to deliver acceleration well above a conventional engines characteristics.

 As the day progressed Shane tested the acceleration at higher throttle openings. At about 25% throttle the GTM trike accelerated incredibly fast, which saw it wheel standing until the rear crash bars were scrapping on the road from about a 1,500rpm take off. Gordon Subloo then drove the trike and performed some incredible take offs and drove the trike also up to 25% throttle and 4,000rpm to check its low down torque characteristics. Shane and Gordon were very impressed with the drivability and acceleration.

Due to the high acceleration of the trike and the wheel standing, it made it impossible to check the full acceleration of the engine in the trike on the day. We have estimated that we used no more than half of the engine's output on the day. Further mods to the trike including repositioning of the radiator and fuel tank will allow harder acceleration in our next tests.

Everyone concerned with the test day were very happy with the results.

Please view  (GTM Director ) Shane Subloo's interview after driving the X4v2 engine in their trike, in our video section.  

Also please visit the links for images and videos of the day.  for images.  for videos.