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2003 arctic cat sno pro 440

This is a discussion on 2003 arctic cat sno pro 440 within the Arctic Cat forums, part of the Brand Specific Snowmobile Discussion category; pissed off cannot find ratings or anything to know the horse of my sled the manual dont even have it[ !]...

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Thread: 2003 arctic cat sno pro 440

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    pissed off cannot find ratings or anything to know the horse of my sled the manual dont even have it[!]

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    powderforlife's Avatar
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    Quote Originally Posted by snowman440L
    pissed off cannot find ratings or anything to know the horse of my sled the manual dont even have it[!]
    Ruining race gas or pump?

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    Quinlan's Avatar
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    You're looking at approximately 100hp in race trim...closer to 90hp when detuned for 91+ octane..

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    Mad-Boondocker's Avatar
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    99HP was the factory rating, Then about 90HP in trail form. With a 720/730 kit u are at 138-145 and in race form 160HP. I'm at 145 with my engine (yes it was dynoed with twins and a stock F7 pipe)

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    what about the z 440 fan snopro have for hp im thinking it has allot less

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    Quinlan's Avatar
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    Z440 SnoPro...about 68HP...

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    ArcticCatZR800's Avatar
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    Quote Originally Posted by debo
    what about the z 440 fan snopro have for hp im thinking it has allot less
    They have 50HP...the z370 has 36HP....personally I cannot notice a real difference between the two so realistically I think the HP of the z440 is a bit lower than 50.


    EDIT: The z440 snopro makes 66.5HP...(it has duel carbs) the regular z440 makes 50.

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    debo's Avatar
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    thanks for the info

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    rich1374670x's Avatar
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    66.5? i don't think so. their 570 is rated st 62-64.

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    rich1374670x's Avatar
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    stand corrected. still seems high for a 440 fan, race or not. the poo 550 and cat 570 are strong fans and mid 60 h.p.

    all 440 lc race engines are between 90-105. doesn't make much difference if clutching is off.

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