Two new Tillotson carburettors for Rotax engines

Press Release by:
Columns: News and Previews
Tillotson - a benchmark in racing carburettors for decades - announces the launch of two new carburettor models for Rotax racing engines. Designated the HM-2A and HX-10A, the new carburettors are not only easy to use but also offer substantially increased performance versus the standard Rotax carburettor. The HM-2A and HX-10A carburettors are the same in overall design except that the HM-2A a fully CNC’d aluminum body while the HX-10A will have a die cast body. Both carburettors can be used on the full range of Rotax MAX engines, from Micro to DD2.

Tillotson has been working on the new carburettors for over three years and the result is sure to excite the Rotax racing world. «Our first goal was to increase overall performance of the Rotax engine, but we also wanted to create a carburettor that is much easier to configure and adjust, compared to the existing carburettor,» noted Andrew Fallon, the Tillotson engineer and a former Irish champion in KF and Rotax, personally supervised the testing and product development.

All that effort shows ... Vroom magazine in their independent tests of the HM-2A recorded lap times of more than 3/10ths of a second per lap faster and hailed the Tillotson carburettor as the first “proper racing carburettor” for Rotax engines.

A real novelty

Here’s what makes the Tillotson carburettor so unique: First, there is a patented fuel system to improve fuel flow to the carburettor. This allows the carburettor to have a smaller venturi and yet dramatically increase lap times. Second, Tillotson has added an easychoke starting system, which allows the engines to start and idle on the first try and that automatically disengages when the pilot steps on the accelerator. Third, the high and low ends of the carburettor are fully adjustable from the outside of the carburettor. There is no longer any need to remove the carburettor and guess at which jets to use. And the carburettor can be quickly adjusted anytime the track conditions change — even during racing. Finally, the Tillotson carburettor eliminates the need for the Mikuni fuel pump, giving racers and mechanics one less thing to worry about. The combination of all these improvements makes racing Rotax more fun for the driver on and off the track.

But Tillotson didn’t stop at just making performance better, it also thought about the way the carburettor looks. Both the HM-2A and the HX-10A have a highly polished body that makes the carburettor look great. And for the racer

who really wants something special, the HM-2A can be custom anodized in a variety of colour options. The HM-2A is already available (see for details), while the HX-10A will be released in spring 2014.

«These two new products will add a new dimension to Rotax racing and are sure to attract pilots, distributors and national federations. This is the perfect carburettor for clubs and national series looking for a faster carburettor with great ease of use,» commented Charles Demirjian, President of Tillotson.

Press Release by: Tillotson Racing - 05/12/13

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