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Discussion Starter · #1 ·
Sportsman 1000 has 90 HP
The Polaris 1000cc pro star engine in a RZR is rated at 110 HP

Honda CBR1000 is listed at 183
Yamaha R1 is listed at 197
Kawasaki ZX10R is listed at 197
Suzuki GSXR 1000 is 199

Why is polaris slacking so much? 馃榾
 

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So the twin cylinder Polaris 952 cc engine has the same or more HP than a 2400 cc Ford in-line 6 cylinder?

The 144 cu in (2.4 L) inline-six engine was first introduced in the 1960 Ford Falcon. The 144 was made from 1960 through 1964 and averaged 90 hp (67 kW) during the production run. While not known for being powerful or a stout engine, it proved to be economical and could get fairly good gas mileage for the time, up to 30 mpg鈥慤S (8 l/100 km). This small six was the basis for all the Ford "Falcon" straight-six engines.

That's an impressive engineering feat. And without a Turbo or Supercharger? I'm going to have to go back to school to find out how it's done.

None of my manuals publish the HP rating - where did you find it?
 

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Discussion Starter · #3 ·
None of my manuals publish the HP rating - where did you find it?
Polaris website has the HP published in the spec section.

RZR xp

Sportsman 1000

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Those are street bikes, aka 鈥渃rotch-rockets. Completely different applications.
 

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Sportsman 1000 has 90 HP
The Polaris 1000cc pro star engine in a RZR is rated at 110 HP

Honda CBR1000 is listed at 183
Yamaha R1 is listed at 197
Kawasaki ZX10R is listed at 197
Suzuki GSXR 1000 is 199

Why is polaris slacking so much? 馃榾
Maybe because Polaris Sportsman isn't built for speed.

Sportsmans are not really built for the black top.

Do you really want to go in excess of 150mph+ on your quad?
 

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I'd much rather see what the torque output is and the rpm curve that it has. Horsepower is not an actual measurement of engine output, it's nothing more than a calculation of ability to do work over time. Engines only produce torque, horsepower has to be calculated.
 

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Horsepower is a measurement - it directly convertible into watts, BTU, calories, candle power and some other measurements that don't immediately come to mind.

100 HP = 64118648.5 calories per hour - which would you buy?
 

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Horsepower is a measurement - it directly convertible into watts, BTU, calories, candle power and some other measurements that don't immediately come to mind.

100 HP = 64118648.5 calories per hour - which would you buy?
Horsepower is how fast you hit the wall, torque is how far you can push the wall.

You got modern zero turns turning 60in decks with 25hp motors that get bogged down in grass that an old single slinger K series making 14hp turning a 60 woulda chewed right thru.

Torque is whats important.
 
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