RMCIT: Superb conclusion at Le Mans
RMCIT: Superb conclusion at Le Mans

RMCIT: Superb conclusion at Le Mans

RMCIT: Superb conclusion at Le Mans

RMCIT: Superb conclusion at Le Mans

The 7th edition of the Rotax MAX Challenge International Trophy came to a spectacular conclusion on Saturday, 19th July at Le Mans. Maximum intensity and elevated spectacle accompanied the Final...
Livestream Super Heats Rotax MAX Challenge International Trophy 2025 at Le Mans
Livestream Super Heats Rotax MAX Challenge International Trophy 2025 at Le Mans

Livestream Super Heats Rotax MAX...

Livestream Super Heats Rotax MAX Challenge International Trophy 2025 at Le Mans

Livestream Super Heats Rotax MAX Challenge International Trophy 2025 at Le Mans

No fewer than 354 drivers are expected at the Le Mans International Circuit this year, confirming the immense appeal of the Rotax Max Challenge International Trophy. 3MK Events, in collaboration with...
The heat is on during the RMCIT Qualifying Heats
The heat is on during the RMCIT Qualifying Heats

The heat is on during the RMCIT...

The heat is on during the RMCIT Qualifying Heats

The heat is on during the RMCIT Qualifying Heats

In increasingly hot weather, the 343 drivers competing in the 2025 Rotax MAX Challenge International Trophy contested 36 Qualifying Heats before tackling the Super Heats on Saturday morning to select...
Livestream Friday Heats: Rotax MAX Challenge International Trophy 2025 at Le Mans
Livestream Friday Heats: Rotax MAX Challenge International Trophy 2025 at Le Mans

Livestream Friday Heats: Rotax MAX...

Livestream Friday Heats: Rotax MAX Challenge International Trophy 2025 at Le Mans

Livestream Friday Heats: Rotax MAX Challenge International Trophy 2025 at Le Mans

No fewer than 354 drivers are expected at the Le Mans International Circuit this year, confirming the immense appeal of the Rotax Max Challenge International Trophy. 3MK Events, in collaboration with...
Close qualifying at the 2025 RMCIT in Le Mans
Close qualifying at the 2025 RMCIT in Le Mans

Close qualifying at the 2025 RMCIT in Le...

Close qualifying at the 2025 RMCIT in Le Mans

Close qualifying at the 2025 RMCIT in Le Mans

After familiarising themselves with the Le Mans International Circuit during Free Practice, the 343 participants in the 2025 Rotax Max Challenge International Trophy competed with great energy during...
The Rotax Electric Kart Cup Italy 2025 doubles the race action in Sarno
The Rotax Electric Kart Cup Italy 2025 doubles the race action in Sarno

The Rotax Electric Kart Cup Italy 2025...

The Rotax Electric Kart Cup Italy 2025 doubles the race action in Sarno

The Rotax Electric Kart Cup Italy 2025 doubles the race action in Sarno

BRP-Rotax, in cooperation with Authorised Rotax Distributor Kart-Shop Italia, announces the first Rotax Electric Kart Cup Italy 2025 as a feature category on the weekend of August 30th - 31st at the...
Results: Rotax MAX Challenge International Trophy 2025 at Le Mans
Results: Rotax MAX Challenge International Trophy 2025 at Le Mans

Results: Rotax MAX Challenge...

Results: Rotax MAX Challenge International Trophy 2025 at Le Mans

Results: Rotax MAX Challenge International Trophy 2025 at Le Mans

No fewer than 354 drivers are expected at the Le Mans International Circuit this year, confirming the immense appeal of the Rotax Max Challenge International Trophy. 3MK Events, in collaboration with...
Live timing: Rotax MAX Challenge International Trophy 2024 at Le Mans
Live timing: Rotax MAX Challenge International Trophy 2024 at Le Mans

Live timing: Rotax MAX Challenge...

Live timing: Rotax MAX Challenge International Trophy 2024 at Le Mans

Live timing: Rotax MAX Challenge International Trophy 2024 at Le Mans

No fewer than 354 drivers are expected at the Le Mans International Circuit this year, confirming the immense appeal of the Rotax Max Challenge International Trophy. 3MK Events, in collaboration with...
Rotax MAX Challenge Euro Trophy entries open for Sarno
Rotax MAX Challenge Euro Trophy entries open for Sarno

Rotax MAX Challenge Euro Trophy entries...

Rotax MAX Challenge Euro Trophy entries open for Sarno

Rotax MAX Challenge Euro Trophy entries open for Sarno

Entries are now open for the final round of the 2025 Rotax MAX Challenge Euro Trophy.
New records for Rotax Max Challenge International Trophy Season Seven
New records for Rotax Max Challenge International Trophy Season Seven

New records for Rotax Max Challenge...

New records for Rotax Max Challenge International Trophy Season Seven

New records for Rotax Max Challenge International Trophy Season Seven

No fewer than 354 drivers are expected at the Le Mans International Circuit this year, confirming the immense appeal of the Rotax Max Challenge International Trophy.
Intense heat and high stakes in Genk:  Round 3 of the RMCET delivers
Intense heat and high stakes in Genk:  Round 3 of the RMCET delivers

Intense heat and high stakes in Genk: ...

Intense heat and high stakes in Genk: Round 3 of the RMCET delivers

Intense heat and high stakes in Genk: Round 3 of the RMCET delivers

The 2025 Rotax MAX Challenge Euro Trophy arrived at Karting Genk ‘Home of Champions’ for its third and penultimate round of the season. Set in one of the most iconic karting venues in the...
Title pressure builds in Genk as the 2025 RMCET nears its finale
Title pressure builds in Genk as the 2025 RMCET nears its finale

Title pressure builds in Genk as the...

Title pressure builds in Genk as the 2025 RMCET nears its finale

Title pressure builds in Genk as the 2025 RMCET nears its finale

As the 2025 Rotax MAX Challenge Euro Trophy entered its third and penultimate round, the championship landed at the iconic Karting Genk: The Home of Champions.
Memorable Sunday at Genk as Round 3 delivers high drama and new winners
Memorable Sunday at Genk as Round 3 delivers high drama and new winners

Memorable Sunday at Genk as Round 3...

Memorable Sunday at Genk as Round 3 delivers high drama and new winners

Memorable Sunday at Genk as Round 3 delivers high drama and new winners

An unforgettable showdown at Karting Genk – The Home of Champions saw Round 3 of the Rotax MAX Challenge Euro Trophy come to a close with dramatic finales, fierce competition, and a...
Livestream: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk
Livestream: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

Livestream: 2025 RMC Euro Trophy Round 3...

Livestream: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

Livestream: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

The 2025 Rotax MAX Challenge Euro Trophy moves into its third and penultimate round with a stop at one of its most iconic venues: Karting Genk – The Home of Champions. A staple in the RMCET...
Spencer, Ashcroft, Butcher, Bol and Picot lead the way after Heats in Genk
Spencer, Ashcroft, Butcher, Bol and Picot lead the way after Heats in Genk

Spencer, Ashcroft, Butcher, Bol and...

Spencer, Ashcroft, Butcher, Bol and Picot lead the way after Heats in Genk

Spencer, Ashcroft, Butcher, Bol and Picot lead the way after Heats in Genk

A full day of racing unfolded at Karting Genk – The Home of Champions, host of the third round of the 2025 Rotax MAX Challenge Euro Trophy.
Results: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk
Results: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

Results: 2025 RMC Euro Trophy Round 3 at...

Results: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

Results: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

The 2025 Rotax MAX Challenge Euro Trophy moves into its third and penultimate round with a stop at one of its most iconic venues: Karting Genk – The Home of Champions. A staple in the RMCET...
Qualifying and first heats complete as Round 3 begins under clear skies at Genk
Qualifying and first heats complete as Round 3 begins under clear skies at Genk

Qualifying and first heats complete as...

Qualifying and first heats complete as Round 3 begins under clear skies at Genk

Qualifying and first heats complete as Round 3 begins under clear skies at Genk

The third round of the 2025 Rotax MAX Challenge Euro Trophy is underway at the legendary Karting Genk – The Home of Champions, where the action resumed today under mild conditions after a rainy...
Live timing: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk
Live timing: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

Live timing: 2025 RMC Euro Trophy Round...

Live timing: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

Live timing: 2025 RMC Euro Trophy Round 3 at the Home of Champions – Karting Genk

The 2025 Rotax MAX Challenge Euro Trophy moves into its third and penultimate round with a stop at one of its most iconic venues: Karting Genk – The Home of Champions. A staple in the RMCET...
202 Drivers set for round 3 of the RMCET at Genk
202 Drivers set for round 3 of the RMCET at Genk

202 Drivers set for round 3 of the RMCET...

202 Drivers set for round 3 of the RMCET at Genk

202 Drivers set for round 3 of the RMCET at Genk

The 2025 Rotax MAX Challenge Euro Trophy enters its penultimate chapter this week at one of the most iconic tracks on the calendar: Karting Genk – The Home of Champions. This legendary Belgian...
Genk prepares to host Round 3 of the 2025 Rotax Max Challenge Euro Trophy
Genk prepares to host Round 3 of the 2025 Rotax Max Challenge Euro Trophy

Genk prepares to host Round 3 of the...

Genk prepares to host Round 3 of the 2025 Rotax Max Challenge Euro Trophy

Genk prepares to host Round 3 of the 2025 Rotax Max Challenge Euro Trophy

The 2025 Rotax MAX Challenge Euro Trophy moves into its third and penultimate round with a stop at one of its most iconic venues: Karting Genk – The Home of Champions.

JAG Engineering wins BRP-Rotax Kart Distributor of the Year Award

JAG Engineering wins BRP-Rotax Kart Distributor of the Year Award Read more

BRP-Rotax yearly recognizes the efforts of its karting distributors to demonstrate sales achievements linked with operational excellence that lead to strengthen BRP-Rotax’s sales and marketing efforts in respective areas around the world. In times like this when our world changes in increasing pace it is even more important to acknowledge the outstanding work of its partners. BRP-Rotax therefore proudly announced the top three members of the BRP-Rotax 2019 Karting Distributor of the Year Award:

1st place: JAG Engineering, UK

2nd place: SODIKART S.A., France

3rd place: International Karting Distributors (IKD), Australia

BNL Karting Series 2020 - Kick Off Aftermovie

BNL Karting Series 2020 - Kick Off Aftermovie Read more

Around 150 drivers headed to the "Home Of Champions" in the first weekend of March, representing 16 different nations, to battle against the very best in Rotax racing circles, with six different classes in action.

Statement: British Kart Championships

Statement: British Kart Championships Read more

Motorsport UK, the British Kart Championships and all associated stakeholders have collectively agreed to postpone the start of the 2020 season until 1 May at the earliest.

Postponement Rotax Max South Africa round 1 nationals

Postponement Rotax Max South Africa round 1 nationals Read more

It is with great regret that Rotax Max South Africa have been forced to postpone the first national of 2020 due to the Corona Virus restrictions.

Karting Australia; ROTAX Pro Tour opener postponed

Karting Australia; ROTAX Pro Tour opener postponed Read more

Karting Australia, International Karting Distributors and the Go-Kart Club of Victoria advises that the opening round of the 2020 Rotax Pro Tour, scheduled for this weekend (March 21/22), has been postponed.

ROTAX Karting: sign up for the DEKM championship

ROTAX Karting: sign up for the DEKM championship Read more

Now it´s even easier to sign up for the DEKM championship - just contact your local distributor and they will be happy to assist!

ROTAX MAX Euro Trophy: Calendar Update - Important Update

ROTAX MAX Euro Trophy: Calendar Update - Important Update Read more

With the growing coronavirus pandemic causing relevant governments to put precautions into place, promoters Camp Company GmbH and MW Race Consulting have opted to amend their calendar as follows for the 2020 season.

BNL Karting: Racing results of the BNL Kick-OFF

BNL Karting: Racing results of the BNL Kick-OFF Read more

The 1st real test after the short winter period took place at the Karting Genk circuit: Home of Champions.  Who already qualifies for Le Mans now? In each class they give away a participation ticket (worth the registration fee). That is the rule rather than the exception for the BNL Karting Series.

BNL Karting starts traditionally the Rotax season with the BNL Kick-OFF.

BNL Karting starts traditionally the Rotax season with the BNL Kick-OFF. Read more

The 1st real test after the short winter period takes place at the Karting Genk circuit: Home of Champions. New participants, new teams, new equipment. Who already qualifies for Le Mans now? In each class they give away a participation ticket (worth the registration fee). The European top will be present. That is the rule rather than the exception for the BNL Karting Series.

RMC Euro Trophy Winter Cup: full house and full of action

RMC Euro Trophy Winter Cup: full house and full of action Read more

Best prepared, the modern karting complex of Campillos near Malaga was a perfect venue for the season kick-off – a challenging 1,588 metres long track with professional facilities for all involved. And even the weather was perfect. A sunny but windy weekend with temperatures of about 18° C guaranteed best race conditions for the drivers who were heading for victory in the categories of Micro MAX, Junior MAX, Senior MAX, MAX DD2 and MAX DD2 Masters.

Sunday Livestream of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos

Sunday Livestream of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos Read more

Circuito Karting Campillos is located just a few kilometers from the Costa del Sol and close to cities like Malaga, Seville, Jerez etc. With a total length of 1580 meters, Campillos is the biggest and longest of all the circuits located in southern Spain. With its long straight and some spectacular up- and downhill sections, it is a challenging track with a very professional infrastructure. The kart track is internationally certified by the CIK-FIA and has a leisure and enjoyment area of about 120,000 square meters.

Livestream of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos

Livestream of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos Read more

Circuito Karting Campillos is located just a few kilometers from the Costa del Sol and close to cities like Malaga, Seville, Jerez etc. With a total length of 1580 meters, Campillos is the biggest and longest of all the circuits located in southern Spain. With its long straight and some spectacular up- and downhill sections, it is a challenging track with a very professional infrastructure. The kart track is internationally certified by the CIK-FIA and has a leisure and enjoyment area of about 120,000 square meters.

Results of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos

Results of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos Read more

Circuito Karting Campillos is located just a few kilometers from the Costa del Sol and close to cities like Malaga, Seville, Jerez etc. With a total length of 1580 meters, Campillos is the biggest and longest of all the circuits located in southern Spain. With its long straight and some spectacular up- and downhill sections, it is a challenging track with a very professional infrastructure. The kart track is internationally certified by the CIK-FIA and has a leisure and enjoyment area of about 120,000 square meters.

We are live! The registration is open for Micro Max and Mini Max Grand Festival 2020

We are live! The registration is open for Micro Max and Mini Max Grand Festival 2020 Read more

The new website is online, the registration is open for the Micro Max (Age of 7 to 11 Years / 8th birthday in 2020) and Mini Max (Age of 9 to 13 Years / 10th birthday in 2020) Grand Festival 2020. The Parolin Rocky class (Age of 7 to 10 Years) has been added to this amazing event.

Live timing of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos

Live timing of the Rotax Max Challenge Trophy Winter Cup at Circuito Karting Campillos Read more

Circuito Karting Campillos is located just a few kilometers from the Costa del Sol and close to cities like Malaga, Seville, Jerez etc. With a total length of 1580 meters, Campillos is the biggest and longest of all the circuits located in southern Spain. With its long straight and some spectacular up- and downhill sections, it is a challenging track with a very professional infrastructure. The kart track is internationally certified by the CIK-FIA and has a leisure and enjoyment area of about 120,000 square meters.

The Rotax MAX Challenge International Trophy prepares for the next exciting event at Le Mans

The Rotax MAX Challenge International Trophy prepares for the next exciting event at Le Mans Read more

Building on the undeniable success of the first edition, BRP-Rotax and 3MK Events continue their collaboration, in partnership with the ACO, to organise the 2020 Rotax MAX Challenge International Trophy from Tuesday, July 28 to Saturday, August 1 at the Le Mans International Karting circuit in France. This impressive event offers a unique karting experience as well as attractive side events throughout the weekend.

“great progress in the technical field” – DEKM Promoter Oliver Schielein talks about the upcoming 3rd season

“great progress in the technical field” – DEKM Promoter Oliver Schielein talks about the upcoming 3rd season Read more

The trade visitors showed great interest in the German Electric Kart Championship [DEKM]. Registrations for the new season are in full swing at www.dekm.de and we hope that our great progress – in particular in the technical field – will convince many young drivers to join our series.

RMC Grand Finals goes to the desert: RMCGF 2020 takes place in Bahrain

RMC Grand Finals goes to the desert: RMCGF 2020 takes place in Bahrain Read more

We are proud to announce the location of the Rotax MAX Challenge Grand Finals 2020: it is BAHRAIN! The best RMC drivers worldwide will take to the desert from November 07th -14th, 2020 for the annual highlight of the karting season.  

Birel ART Racing Team 2020: the drivers to keep winning!

Birel ART Racing Team 2020: the drivers to keep winning! Read more

After its world crown in 2019 to celebrate the brand's 60 years of existence, the Birel ART Racing Team is getting ready for more success in 2020. International high-level competition remains the scene of the most spectacular sporting and technical confrontations between the main chassis manufacturers, and Birel ART intends to showcase its skill by aiming for the top places in the four categories in which it is involved.

Work in progress for the CRG Racing Team

Work in progress for the CRG Racing Team Read more

The 2020 drivers line-up will be presented in January together with the racing programmes, that will include the participation to all the FIA events and the main international meetings.

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Vortex: New Homologated Engines
Bas Kaligis
/ Categories: Technical

Vortex: New Homologated Engines

OK and OKJ Class: DST and DJT

Several technical innovations mark out the new engines. Three important main targets were followed with the DST and DJT projects: weight reduction, overall dimensions reduction, lowering of the center of gravity. The achieved outcome: two engines even lighter than the predecessors, allowing better weight distribution and improved vehicle dynamics resulting in an increased vehicle's performance.

The engine block was designed with new crankcases, new crankshaft, new balancing shaft, etc. While remaining similar to the previous layout the engine block was designed to be stiffer and provided with fully machined intake section and transfers. This manufacturing option allowed to improve the overall engine performance repeatability.

The new balancing shaft, diving deeper in detail about one of the most important design changes, no longer works in a chamber filled with oil which means lower friction losses and improved performance. The new design briefly introduced above allowed a consistent performance improvement, a consistent weight reduction and a better weight distribution.

 

KZ Class: RSZ and RTZ

The new RSZ and RTZ engines are strictly resulting from the reigning world champion engine RKZ and retain the concerning best qualities. The underlying premise of the new project was a functional development to increase performance and improve torque delivery. To achieve this outcome the work of the technicians was focused mainly on the crankcases, redesigned and fully machined. This manufacturing option moreover allowed to improve the overall engine performance repeatability.

Together with it a new head with insert was included, provided as standard, featuring a modified combustion chamber profile. The RSZ engine setup differs with respect to both the RTZ and RKZ. In particular, the RTZ shares with the RKZ the connecting rod, while the RSZ is equipped with a shorter conrod, with center-to-center distance equal to 110 mm. The RSZ features a torque curve able to ease the driver to race on short to mean length tracks. Both engines are supplied with a specific exhaust silencer, muffler.

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