Here, in Part III of the Sno Pro 500 Series, I want explain my own time aboard the Sno Pro 500, put it in a historical perspective, then perhaps challenge some of the assumptions we tend to make.

Happy Halloween from Eric Bergstrom and everyone else on the ArcticInsider forum.

Three 2009 Model Arctic Cat snowmobiles were issued for safety recall: the Z1 Turbo, Z1 Turbo Sno Pro and TZ1 Turbo. Read more...

Arctic Cat released their 2010 Second Quarter financial results, posting $14.8 million in earnings on lower sales.

There's been some confusion and misinformation regarding which track comes stock on certain 2010 model year Arctic Cats. THIS Excel file is the official chart with the correct information.

Friday, Oct. 23, 2010. Inside of the Hibbert race shop. Two 600 stock engines pulled from their respective chassis, to be shipped to Speedwerx for the full-on horsepower squeeze.

In another crushing blow to ArcticInsider, Team Arctic's resident mountain bike racer is clearly confused about this Website.

Team Arctic grass drag racers once again tore into the big classes a week ago in Fremont, N.H. Here's the press release from Arctic Cat.

Gerard Karpik - cross-country snowmobile race legend, inventor of the M-10 rear suspension, BLADE snowmobile and M-20 Air Ride suspension - talks about ArcticInsider.com.

Arctic Cat just released the update changes they've made to the 2010 Sno Pro 600, Sno Pro 500 and M8 HCR race sleds.

Brian Sturgeon, Team Arctic racing legend and Eagle River World Champion, is normally outspoken when it comes to the sport he loves.

So when I was at the Team Arctic Race shop recently, I asked... uh, "him" his opinion about ArcticInsider.com

I think his response speaks volumes for how we're doing with this site.

You gotta love the brutal honesty and Plan B priority of this guy. I'm hoping that he'll find a trader for the sleds and trailer, and that he'll meet the snowmobiling woman of his dreams.

A quick trip to Thief River Falls over the past couple days provided some cool sights and interesting developments.

When Arctic Cat coaxed 160-plus hp out of its 800 laydown twin via new exhaust, pistons, cylinder porting, EFI calibration, ignition timing, APV valves and the good ol’ Greg Spaulding voodoo, it prompted the strong recommendation that owners use 91-octane fuel.

For the past several years, Kirk Hibbert has made a point of selecting the Sno Pro 600 race sled whose serial number ends with 68 for his son Tucker.

How does 142 mph on asphalt sound? It sounds like another speed record for the Z1 Turbo.

See what Haydays looks like in 124 seconds, courtesty of Arctic Cat World's Fastest Snowmobiles.

This is Pat Mach, fearless leader of the United States Cross-Country (USCC) and in many ways the savior of snowmobiling’s purest form of racing.

In Part I of this series we established that the 800 H.O. and 600 consumer twins don’t fit into the Sno Pro race chassis. The question I had is, “Why wasn’t the chassis designed to accept these consumer-friendly engines?”

American Snowmobiler magazine reserved its highest praise for select 2010 Arctic Cat models, including Best Sled, Best Mountain and Best Touring.