This Arctic Cat also features the Slide-Action rear suspension and the famous seventh-generation AWS front suspension. According to the brand's engineers, the Slide-Action system maintains full front-arm travel even under full acceleration. The skis always remain in contact with the ground during the acceleration, providing better control in all conditions. My only complaint about this sophisticated system comes from the fact that you got to lay in the snow in order to properly adjust the complex suspension settings.

Geared for the great outdoors
As for functionality, the RS Venture could use a more extensive list of features. Storage is limited and the cargo rack is minuscule. On the other hand, it boasts a comprehensive and user-friendly instrument panel. The TZ1 LXR, meanwhile, features three decently-sized luggage compartments, giving it a well-executed touring look. Believe it or not, this luxurious sled comes standard with a heated seat and a remote starter -- an industry's first. We should also mention that the TZ1 LXR can accommodate a third person thanks to its next-generation "2+1" seat design.

The RS Venture boasts a comprehensive and user-friendly instrument panel.

Admittedly, the Arctic Cat TZ1 is the most equipped snowmobile ever. That said, some of its features are so complex that they somewhat spoil the whole riding experience. It's in your best interest to carefully read the owner's manual and learn how to operate every system before venturing out on a long trip.

Different engines
The TZ1 is motivated by the same 1,056-cc, 4-stroke engine than the sporty Arctic Cat Z1. Developed with the help of motorcycle manufacturer Suzuki, this 4-valves-per-cylinder unit is fed by an electronic fuel injection system with a 48-mm dual throttle body. The pistons copy each other's moves, but the combustion alternates with each 360-degree rotation. Engineers even managed to mitigate engine brake control with a special device called ISC which increases the air intake when you release the throttle. The TZ1 engine proves very docile while delivering gobs of low- and mid-range torque. However, it seemed to run out of breath pretty quickly and I found it a tad harsh at higher revs.

Meanwhile, Japanese manufacturer Yamaha has once again proven its ability to create powerful, efficient and clean 4-stroke engines that are specifically designed for snowmobiles. The 3-cylinder Genesis 120 powerplant of the RS Venture GT is remarkably smooth and quiet. The powerband is steady all the way to the redline, while mid-range torque is massive. This is one of the best high-mileage engines in the industry.

Verdict
With a host of exclusive features, quality equipment designed for long rides and exemplary ergonomics, the new 2008 Arctic Cat TZ1 won us over at the end of our comparative test.

Despite a proven engine, highly advanced suspension and ultra-smooth ride, the RS Venture's styling and ergonomics are clearly outdated. But the 4-stroke engine specialist won't let competitors have the last word. We strongly believe that Yamaha will soon unveil an all-new RS Venture for 2009. Let's wait and see.


Photo Credit : Philippe Champoux