2005 Arctic Cat F7: Performance upgrades - Snowmobile Forum: Your #1 Snowmobile Forum
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post #1 of 7 (permalink) Old 09-29-2008, 10:21 PM Thread Starter
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2005 Arctic Cat F7: Performance upgrades

hello
I have a 2005 AC Fire cat (Sno Pro) F7... and i want to get some more performance out of the machine.
I have a MBRP muffler for the most (and only) performance part for the sled.
Its actually pretty nice, takes like 10lbs of weight off the side of the sled, and it sounds awesome.

anyways, Is there anything else I could do to the sled to get more HP and top speed out of it? Bore kits, NOS...

How about a hayabusa engine? AC and Hayabusa are both suzuki products.
so, the engine wouldn't be too far from the family tree.
But, could such a swap really be done?
the part that worries me most is the clutching.
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post #2 of 7 (permalink) Old 09-30-2008, 07:20 AM
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Yes the Busa has been done, even a turbo! $30,000! The F7 is one of the most Modded sled out there! You need a game plan, first how much can you afford? How muck power do you want? I've heard that someone in the NE has a F7 triple with the 1010 kit (1515) with NOS at 500hp! Porting and reeds could get you to 150hp a big bore 800 to 1010 could get you closeer to 200? But likly $2000!
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post #3 of 7 (permalink) Old 09-30-2008, 07:43 AM
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The MBRP can was a step in the wrong direction!!

********************
2003 AC F5 (Jr's Dec 07 SOTM & 2008 SOTY)
2003 AC F7 EFI SP (April 06 SOTM)
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post #4 of 7 (permalink) Old 09-30-2008, 10:18 PM
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A good clutch kit ODS, DnD y-pipe & Bikeman pipe mod are your most popular and easest to get done. Clutching is the key on the 2005 F7.
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post #5 of 7 (permalink) Old 10-01-2008, 09:32 PM Thread Starter
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azracing: Do you know of any good clutching kits.

I sled mostly in the "Rolling Hills" of the mountains... right before it gets too steep for a short-track. Once in a blue moon, you come across a lake, and do 110mph, but i need more acceleration and speed for the powder and the ditches.

I would really like to do a big-bore kit or something less distructive to the sled. Or even an upgraded engine from a newer firecat like an F8 or F1000.

IF anyone knows of any company that sells sled "crate" engines, please do tell.

I want to make a killer hotrod sled for a summer project ( i work on cars all winter)... or even a nice mod between now an first snow sometime in mid november.
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post #6 of 7 (permalink) Old 10-01-2008, 09:45 PM
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my friend bought a 03 f7 snopro with a bikeman 800 big bore kit. it wasnt that fast. he could barely pull on a stock 500ss from a dig. they only went to about 60 but still, i wasnt impressed. then a few weeks later it blew up.

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post #7 of 7 (permalink) Old 10-07-2008, 07:46 PM Thread Starter
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I need to get my clutch re-balanced for higher altitude bashing. going from a lowland lake to mountains is a big step.

while I am working on my clutch, is there anything constructive i could do do increase my speed? Last winter the most i could do was about 103 mph, with a full bottle of Octane booster. I would like to get into the 115's-120's. different clutch weights??

I might also move onto a twin pipe setup as well.
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