Rotax 593 HO E-TEC
The Rotax® 593 HO E-TEC engine was introduced in 2009 and has already become legendary. Reliable direct fuel injection system based on E-TEC BRP ® technology, and has achieved great recognition with Evinrude outboard motors. The original design of the E-TEC system does not add weight to the snowmobile. The engine design is the same as that used by Rotax on carbureted and SDI models, but E-TEC technology provides the same maximum power, but without the use of a battery. The engine produces power and torque throughout its entire operating range and has lightning-fast throttle response.
Thanks to the 3D RAVE valve system, fuel consumption and emissions are significantly reduced. This engine is truly the greenest two-stroke engine - its fuel and oil consumption are the lowest on the market, which is even more environmentally friendly than most four-stroke engines. In practice, the E-TEC engine is smoke-free and odorless and starts easily in the most severe frost. The ease of use of the E-TEC engine is increased due to additional service functions - such as automatic preservation for the summer season, in just a couple of minutes.
Ergonomics
As always, the GT's ergonomics are among the best. I was pleased with the Forward Adjustable Riser steering wheel adjustment system; with its help, you can change the height of the steering wheel so that it suits any driving style. As for carrying luggage, the snowmobile is equipped with 62 liter waterproof boxes that are installed in the rear. The GT doesn't mind cold winds because it has a 711mm high windshield. Both driver and passenger will enjoy heated seats, while the passenger also has heated grips and a soft backrest.
On snow, the Grand Touring rides on the second generation of the Silent Track, measuring 381mm wide and 3480mm long. Thanks to its internal structure, it does not produce much noise. It is also part of the Silentdrive system, which includes a driveshaft and special geometry drives. The system reduces not only noise, but also vibration in the driver’s feet.
During our week-long test drive, we spent the most time behind the wheel of the Grand Touring of all three sleds. We tried to understand as best as possible how ACE Turbo works and how to get the most out of it. Of the three ACE-powered Ski-Doo sleds, the Turbo GT was the most enjoyable. But there is a thought that he would still be more suited to the new two-cylinder E-TEC with a volume of 600 cm3, even despite the loss of 25 hp.
We couldn't even choose the best turbine operating mode, although there are three of them: Normal, Sport and ECO. Standard, Normal, mode turned out to be the most pleasant option. It works in conjunction with the Intelligent Throttle Control system. You can flip the lever and operate this system with your fingers or use the usual thumb adjustment. This adjustment method has long proven itself in the line of BRP Sea-Doo personal watercraft with ACE engines.
It is also worth saying that prototype models are allowed for a test drive. So there is still hope that the ACE Turbo engines are simply not fully calibrated. And one more note: all three cars had mechanical problems with reverse: slipping, not engaging the gear, difficulties with grip. When this happened the first time, we simply turned to the mechanics for help. It turns out they didn't check the clutch before driving. Once everything was debugged, the problem went away. But still not the most pleasant situation for a test drive.
The GT continues in the tradition of Sci-Doo's long-distance two-seat Nordic 371, which was introduced back in 1969. The Grand Touring Limited deserves respect for its new wide GEN4 platform, but the ACE Turbo engine is a mixed bag.
Rotax 1200 4-TEC
130 hp Rotax® 1200 4-TEC engine specifically designed for snowmobiles. Its main features are low weight, good cold starting, low exhaust emissions, wide torque range and smooth engine operation. It uses the most modern technologies that Rotax implements on motorcycles under the BMW, Aprilia and Buell brands.
The engine is equipped with an electronic fuel injection system and its torque curve is wider than that of competing engine models. A significant amount of thrust is already present at low speeds - 3000 rpm. A huge amount of torque is available to the driver throughout the entire rev range (119 Nm/7500 rpm), which guarantees confident acceleration.
The Rotax 1200 4-TEC is ideal for both touring and sport touring snowmobiles. This is one of the most economical engines on the snowmobile market - its fuel consumption is from 13 l/100 km. Characteristic features of the Rotax 1200 4-TEC engine are also environmentally friendly and a pleasant, bass sound, which shows the high power of the engine.
A.S.E and other delights. Four-stroke ROTAX in BRP snowmobiles
In the previous review, we looked at all ROTAX two-stroke engines that serve in BRP under the Ski-Doo and LYNX brands.
Now let's move on to their 4-stroke brothers.
So, in the lineup of snowmobiles we will find three engine models: 600 ACE, 900 ACE and 1200 EFI.
The first two motors are created using A.S.E. technology. , which reduces and minimizes all kinds of losses in the efficiency of the motor during its operation, including friction of parts.
Let's look at the smallest engine, the 600ACE. This is a two-cylinder engine with a power of 60 hp, not only impressive with its compact size and weight, but also with a number of characteristics.
Among all snowmobile engines, the ROTAX 600 ACE is recognized as the quietest and most economical engine. This is precisely why it is loved by hunters, users of work-utilitarian snowmobiles, and lovers of touring models for family recreation, who do not prioritize dynamics and maximum speeds.
Buy the ROTAX 600 ACE in our online store
Developing a maximum snowmobile speed of 110 km/h, this engine simply caresses the ears and eyes with its deep whisper and fuel level scale that almost does not change during riding.
Even on utilitarian BRP SWT series with a 60cm wide track, this motor easily copes with the task of driving through deep snow and allowing maximum autonomy of the snowmobile in remote areas. When driving a snowmobile with a 600ACE , you will be pleasantly surprised by its ability to ride tight, without excessive slipping, but at the same time confidently and with excellent traction on virgin snow. And when installed on tourist snowmobiles, for example on the Lynx Ranger 600ACE , this motor will allow all family members to learn how to operate a snowmobile as safely as possible. It is smooth, has smooth acceleration and predictable dynamics, even with a sharp press on the gas.
New exclusive ITC found on most 2015 snowmobiles with A.C.E. , allowed us to take the level of comfort and safety of these models to a new level. Now there are three engine operating modes that will not only make riding easier for a beginner, but also radically simplify the movement of an experienced snowmobiler under various trail conditions. ECO mode for a smooth ride and long hauls, STANDARD mode for most cases when a reserve of speed is needed, and SPORT mode for frisky rides and storming hills. And the throttle trigger, which can be turned under the thumb or index finger, is not only softer and lighter than its counterparts with throttle cable control, but allows you to rest your hand during long journeys.
Next comes the ROTAX 900ACE . This is the newest high-tech engine model developed by ROTAX and BRP a couple of years ago. Last season, this engine appeared on the Ski-Doo Expedition SPORT 900ACE and attracted the attention of all experts. And in the summer season we met a new series of SPARK jet skis with this engine. Therefore, the motor’s baptism of fire was successful, and its presence on a whole line of jet skis that were used for a whole season finally emphasizes its reliability. This motor has many parts in common with the 600ACE .
Only the new 900ACE is already three-cylinder and has 90 hp.
And with 50% more displacement than its twin-cylinder little brother, it produces 78% more torque! This is a very impressive and indicative figure. After all, in a snowmobile, it is the torque that is very important in the engine and that its peak is achieved at speeds that do not greatly exceed the cruising speed of the snowmobile. All BRP achieve maximum power within 7-8 thousand rpm. Snowmobiles with the 900ACE include tourist-utilitarian models with a wide track, the well-proven Ski-Doo Expedition Sport , and a whole series of work snowmobiles Skandic and Lynx Yeti WT and SWT . Such a motor gives all of them impressive capabilities both in terms of traction and dynamics.
At the same time, the engine is so compact that it easily fits under the hood of snowmobiles, which are also equipped with 2-stroke ROTAX E-Tes engines.
Another feature of BRP with a 900ACE is the presence of a programmable “Training Key”, which has the ability to limit the maximum speed of the snowmobile and its acceleration dynamics.
the ROTAX 4-stroke series is a three-cylinder 130-horsepower 1200 EFI. This is the engine that is equipped with the top version of the luxury wide-track tourist Ski-Doo EXPEDITION SE 1200 . You will also find this engine on the dynamic touring snowmobile Ski-Doo Grand Touring 1200SE , which combines maximum comfort and options, and on the Ski-Doo Renegade 1200 X .
Snowmobiles with a 1200 motor are ideal for wide and open trails and open spaces. In the forest and on very rough terrain it will not be easy for them to reach their full potential, but on a reservoir or in the fields - it’s easy!
Contact our BRP Formula7 dealership and we will help you choose the snowmobile that will ideally meet your needs with its engine and characteristics!
