Technical
TECH TIPS ISSUE 1 – MISFIRE PREVENTION
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ECU’S – RUMOURS, FACTS AND AN INTERESTING DYNO TEST
The 2018 SA Rotax Max Challenge has exceeded anyone’s expectations and fantastic, close racing has got everyone’s attention. So close are the lap times that some competitors and tuners are running around like headless chickens trying to find that tenth of a second that could move them up several places on the grid. Karters all … Read more
CHANGE TO THE EXHAUST SYSTEM ON MICRO AND MINI MAX FOR SOUTH AFRICA IN 2018
BACKGROUND It was brought to our attention that certain Mini and Micro Max exhaust systems performed better than others or that well used exhausts perform better than new or repacked exhausts. INVESTIGATION EMR has tested several new and used exhausts on its dyno simulator and confirmed that the variation is unacceptably wide – old burnt … Read more
ROTAX MINI MAX CONFIGURATION UPGRADED FOR 2018
Innovation is the name of the game – Rotax Mini Max configuration upgraded for 2018 Rotax is always looking at providing customers with the best value while never compromising on durability. Although in the long run a Mini Max is very economical to own, the purchase price is high compared to an air-cooled 60cc engine. … Read more
NEW TECHNOLOGY CYLINDERS FOR DD2 AND SENIOR MAX. MINI MAX STAYS ON 950 WORLDWIDE
Finally the long awaited new technology cylinders have been released and will be legal for racing in 2018! Some very important notes: Junior, Mini and Micro Max: these classes already have the latest technology cylinders since the beginning of 2017 so there is nothing new and no change to the cylinder in these three classes. … Read more
INTRODUCTION OF THE NEW SENIOR MAX CYLINDER
After the extremely successful introduction in early 2017 of one-piece 3D digitally printed cylinder cores for Junior MAX, ROTAX immediately set about developing a new Senior MAX cylinder using the same technology. Further improvements in accuracy and consistency have been made by fully CNC machining the entire exhaust duct and now the port edge chamfers … Read more
WHY NOT USED CASTER BASED OILS ON YOUR ROTAX
Recently a competitor set a lap record and then was excluded because the squish clearance was found to be too small at the post race check. When the head was removed, it became clear that a castor based oil had been used on practice days and so carbon had built up resulting in an illegal … Read more
ROTAX 2017 ENGINE MODEL INFORMATION
In the product development Rotax focus on their key targets. Ease of use High durability Equal opportunity They constantly verify and assess any input of the market to make their products even better. On the other side they also understand that the market is looking for certain product stability. With this market understanding in mind … Read more