This in no way is very scientific but just want to see if any other 2007 f owner noticed the amount of driveline friction these sleds seem to have?.. one day we took 5 sleds to a large smooth sledding hill that was well packed and icy. the sleds there for this informal test. 07 f6sp, 2006 f5 sno pro, 06 sd mxzx 600sdi, 07 polaris 600 ho, 07 f8 lxr. to start we all removed the drive belts and with a picked driver to keep the load the same. we picked a starting point and allowed each sled to just coast using gravity only. the results were as follows, the firecat out distanced all sleds by 12 feet 3 for 3 times, next closest was the polaris 600 ho, then the ski doo and some 25 feet to the rear was the 2 new f sleds at within a foot of each other all three times. both 07 f sleds had no track rubbing issues and had 15 inch wide stock tracks without studs,same as all sleds there that day. next all sleds were placed in a common spot and without a driver allowed to be let go and roll to a natural stop,again the same finishing order but all traveled a few feet shorter overall. My seat time while on the f6 gave a feel like a internal driveline friction was there robbing this sled of top speed and fuel mpg. others in this group took turns driving the 07 f sleds and described a similar feeling or sensation. all tracks seem to roll well and have no tight spots. the tracks are to spec as for alignment and deflection values. track drivers are centered and clutches are in proper alignment.ski alignment was spot on.
this stupid friction roll resistance test seemed to show up with the distance that the two f sleds produced. Has anybody else taken notice to this feel or sensation with this chassis? --- Yes I know there will be flack over the difference in miles on the sleds,ski runners ect.. but the results did not vary in all runs. Has anybody taken the time to blue print the chassis and see any significant gain in et/speed or mph after this was done?