here is what took place, race one on back lake, robbie on f7 and me on f8, f7 grabs a sled length and holds it to around 80 mph and then starts to pull away very slightly, but is definitly faster. next race against rev 800, sleds run even to 80 and both f7 and rev pull away with f7 ahead of rev, not by much though. over to little diamond on ice strip. no traction on mine so i grab wifes sled. dennis on johns mxz 800x, dead nuts even in two attempts, f8 with studs (light trail pattern) f7 sp (no studs) f7 wins again by two sled lengths and if there was more room it would of been even worse. conclusion, i was spanked ! disappointing for a new 800 for sure. there is plenty of power left on the table with these new sleds. trial ride is off the chart so that makes up for the speed issues. i'll start to tweak this thing this week. it does concern me that arctic cat would allow the new sleds to be spanked by their old sleds. before the next round of racing i'll most likely have this thing where it should be (oil pump adjustment, belt deflection, alignment,weights, springs, air box, y-pipe, track tension, shift assist, simmons skis and apv adjustment). too bad someone has to go through this just to be competitive with there old f7. bottom line is the shoe is on the other foot now, we all had fun on the f7's beating higher displacement sleds from other mfg.s and now it's beating are own.
There is definately some top end speed difference among these F8's. I have a F8 SP, my buddy has the F8 SP TS and another buddy has the F8 LXR. The TS beats the LXR and my SP beats both of them consistently. BTW, I am the heaviest so weight is not the advantage here. These have approx 600-700 miles on. Mine also beat the 3 REV 800 Renegades in our group last weekend. Not sure of all the MODS they have but they each have cans for sure. So far I am very impressed with the overall performance. My side panel is melted slightly though and I did have an issue with it shifting into reverse on its own.
Good luck with your tuning and please let us know what works.
Well I was planning on buying a f 8 or f 1000 but not so sure. My '01 ZL 800 esr, that means high windshield, elec start, reverse, mirrors etc will pull 110+ plus on the speedo with me sitting straight up on any lake. No mods just 192 studs, and I have 3300 miles on it. Plus it has big low end nuts. Wish it rode as nice as the Jaguar I test rode though. Maybe Cat will have it sorted out for '08.
That's no speedo - that's a "dream-o-meter". 110mph on a speedo on a Zr chassis sled is really more like 85-90mph. As the speed increases on the "dreamy meter" the error increases proportionally. So at about 100mph (indicated) you are doing about 80. At 110 you aren't over the century mark yet. Now, on the F-cats it's a different story. They are much more accurate right to the top in my experience.
<div class='quotetop'>QUOTE (LabonteF8 @ Feb 7 2007, 09:02 PM) <{POST_SNAPBACK}></div>
With the y-pipe and air mod ... are you running any sort of fuel mod? If not, have you been checking your plugs to see if it's leaning out? I just don't have the guts to add my y and bullseyes right now.[/b]
I saw that you're looking for the fuel mod for the D&D Y Pipe. You've probably already done this but, my dealer said to give D&D a call at 315.376.8013. He said they can help you.
Got out on the river today pulled 104 it pulled pretty hard up to about 97 98 than it took a little to hit 104 but with some clutching I think this sled will be right there I did not race any newer sleds but we will see what happens tomorrow. As a trail sled this is the best sled I ever rode Rockerdude Rockerdude
<div class='quotetop'>QUOTE (jjb @ Feb 10 2007, 06:04 PM) <{POST_SNAPBACK}></div>
Got out on the river today pulled 104 it pulled pretty hard up to about 97 98 than it took a little to hit 104 but with some clutching I think this sled will be right there I did not race any newer sleds but we will see what happens tomorrow. As a trail sled this is the best sled I ever rode Rockerdude Rockerdude[/b]