SEAMLESS VS. TRADITIONAL SEQUENTIAL: COMPARISON TEST OF THE TWO TRANSMISSIONS FOR SHIFTER KART ENGINES
We compared the performance of an TM KZ-R1 engine equipped with a traditional gearbox and that of the same engine, but equipped with the S1087, the transmission (analysed in the article "Technical Focus - S1087 by D.M.A. Racing Gears, The first seamless gearbox for Shifter karts") without torque variations that allows you to change gear "keeping the acceleration down". According to D.M.A. Racing Gears (the manufacturer that produced and patented the transmission) this solution allows a gain, in terms of lap time, ranging from 2 to 5 tenths. Will our test confirm this?
To verify, with the same preparation of the Shifter engine (a TM KZ-R1) and track grip conditions, what the differences are, in terms of performance and driving sensations, between the use of a traditional sequential gearbox for karts and the seamless transmission by D.M.A. Racing Gears.
We examined the trend of the engine rpm in the sections of the track considered, the speeds reached and the driving sensations.
Comparisons were made regarding:
Steel Ring track - Trīnec (Moravia-Silesia) - Czech Republic. The circuit has a total length of 1,234 m, a width of about 9 m (7 m total elevation gain) and has 8 left-handers and 10 right-handers.
We were able to count on a well-kept and regular asphalt, even if the surface, in general, had little grip, although our tests were carried out only 24 hours after the second round of the OK and OKJ FIA Karting European Championship. The test was carried out from 12 pm to 4.30 pm, with a TM KZ-R1 engine and VEGA XM3 CIK PRIME tyres.