Gazelle Changes 21

Following the final approval from Motorsport UK, we are able to confirm the changes to the IAME Cadet class.

For 2021 the IAME Cadet class will see two major changes, the first since the class was introduced in 2013. Both measures have been introduced to improve the usability of the engine package.

The updates are as follows:-

Carburettor

This will be a new design coming from the HW series carburettor. It has been designed and developed in conjunction with our technical partners Tillotson. The HW is an evolution of the HL that has seen great success after being introduced for the X30 class back in 2015. A variation of the design has also helped to win World karting titles. 

The carburettor designated for the IAME class is the HW-47. Manufactured using an improved casting and machining process to give greater accuracy and features like the adjustable high and low speed jets, allowing the optimum setting to be identified with ease, are both benefits of this new carburettor and inherent in the HW series.  Specifically designed for this model, it features a 15mm Venturi and external pulse connection while the diaphragm kit is the same used in the X30 classes.

Exhaust Restrictor 

Following a design concept first made for the KF engines, this has passed down to the 60cc Gazelle engine. It features a one piece CNC machined exhaust manifold, the manufacturing process allows for more efficient gas flow which not only help in performance but also has been seen to equalise engines.   A 16mm restrictor will be used in 2021 which gives a decrease in the lap time of approx 0.6 seconds with an increase of 1 hp.

The introduction of both new parts will help equal out current equipment, seeing the replacement of the current HL 394 which has become arduous for many in the class, especially novices, over the past few years. 

Introduction 

The new parts will be mandatory at all Motorsport UK race meetings from1st March 2021.  The parts will be available for sale from 5th February 2021.  Please send you order request to  

Cost 

Thanks to the support given from Tillotson, IAME S.P.A and John Mills Engineering, there will be a heavily subsidised introductory price for all components using a phased approach. 

  • HW-47 carburettor and exhaust restrictor kit, including the new thermal spacer and mounting studs and necessary gaskets:

  *Subsidised cost £99 + vat  (this will be limited to 2 kits per competitor, valid until 30th April 2021)

  • Exhaust restrictor only:
    *Subsidised cost £39 + vat (valid until 30th April 2021)
  • Please note these prices apply only to Motorsport UK licence holders and a copy of a 2021 licence will be required to be presented prior to purchasing..

The costs after this date will be:

  • HW 47 Carburettor £99 + vat  [RRP £189 + vat]
  • Exhaust restrictor £55 + vat  [RRP £80 + vat]

These prices will be fixed until the end of 2021