New to here

Tickets purchase
VideoPass purchase

Bartol comments on Kallio tape technique

Bartol comments on Kallio tape technique

Red Bull KTM Managing Director Harald Bartol has given an insider´s description of the engine warming technique used by several 250cc competitors, including his championship leading rider Mika Kallio, whereby the radiator is taped up to increase temperature build-up.

With Red Bull KTM´s Mika Kallio fighting to maintain the lead in the 250cc general standings in a highly competitive category, his team are well aware that the finest margins can make a difference in races and every available step is taken to get that competitive edge.

With changeable weather conditions a key factor throughout the entire weekend at the third round of the season at Estoril, in particular, the wind and rain not only affected rider stability on track, but also caused significant fluctuations in temperature which in turn were critical to engine performance.

Harald Bartol´s KTM outfit are one of several teams who use a specific engine warming technique in such circumstances, which allows the rider to choose when to subsequently cool the engine once the race has begun.

`What we do is tape the radiator,´ explained the team chief of the technique Kallio has been using. `Then we have a tape that he can take off while he is out on track. The reason is, also if the temperature increases mainly during slipstreaming, he has the possibility to cool the engine down himself by five to six degrees, which could make a power difference of about one horsepower.´

`The tape we have on the radiator is better for aerodynamic reasons,´ he continued, `so that is why we use this system instead of a thermostat. That would be easier to regulate on its own, but aerodynamically it is not so good.´

Revealing that title chasing Kallio will have updated machinery for round four, as he goes in search of a fourth consecutive podium after a victory and two third places so far in 2008, Bartol added, `In China we should be able increase our power on the engine a little bit. We have some parts coming for there and for France, so I am looking forward to being a bit closer to the Aprilias at the top end, which is important in China.´

`In France it is not so important as the straight is not so long. Although to an extent it is important everywhere our main target is to make improvements on the setting side with the chassis, but I anticipate that we should be quite good in the next couple of races.´

250cc, 2008, Red Bull KTM 250

Other updates you may be interested in ›