2004 arctic cat firecat f6 efi
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Ski-Doo's 600cc twin should be close as we found just over 117 hp in last year's Shoot-Out sled. A dyno run on an earlier high output 2003 Ski-Doo MXZ 600 HO spiked at 119.8 hp at 7800 rpm. But the overall output dropped two horsepower, just a thousand revs on either side of the 119 reading- 117.8 at 7700 rpm and 117.6 at 7900 rpm. The Cat displayed a gentler drop on either side of its top power mark. Polaris' Liberty 600 engine will be down a few ponies to the Cat 600 and Ski-Doo 600.
The Cat's new F7-based 600cc twin delivers 70 lbs.-ft. of torque at 6400 rpm where it also makes more than 86 hp.
"This engine makes nice torque," dyno tester Rich Daly stated, "and should be relatively easy to clutch thanks to its wide power band."
This story ran in the November 2003 issue of American Snowmobiler magazine