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Post by Oatking on Sept 5, 2023 12:01:25 GMT -6
Is there a factor to convert cc’s to hp?
While loading grain I noticed my vanguard engine says 37 hp in big letters but in fine print it says 983 cc!
My Polaris Ranger is 60 hp but is an around 1000 cc. My Indian bike says 1890 cc but hp doesn’t reflect that !
Maybe a silly question but how do generalize the two measurements in power?
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Post by garyfunk on Sept 5, 2023 12:39:38 GMT -6
Is there a factor to convert cc’s to hp? While loading grain I noticed my vanguard engine says 37 hp in big letters but in fine print it says 983 cc! My Polaris Ranger is 60 hp but is an around 1000 cc. My Indian bike says 1890 cc but hp doesn’t reflect that ! Maybe a silly question but how do generalize the two measurements in power? cc doesn't mean a damn thing when it comes to hp. Did someone hack your account? 😆 |
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bigal
New Member
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Post by bigal on Sept 5, 2023 17:39:22 GMT -6
Is there a factor to convert cc’s to hp? While loading grain I noticed my vanguard engine says 37 hp in big letters but in fine print it says 983 cc! My Polaris Ranger is 60 hp but is an around 1000 cc. My Indian bike says 1890 cc but hp doesn’t reflect that ! Maybe a silly question but how do generalize the two measurements in power? CC stands for cubic centimeter, it's a measurement of displacement. |
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Post by northernfarmer on Sept 5, 2023 19:39:09 GMT -6
Following up with what bigal mentioned, 1000cc = 1 litre
Also 1000cc = 61.024 cubic inches
Interestingly take the GM 350 engine that was around for decades, its 5735.5cc although to call it something metric they call it 5.7 litres but that isn't exactly accurate.
Horsepower for a given engine size, that's all over the place due to how highly tuned it is and the higher the rpm it can reach with efficiency the, higher the hp tends to be but then what torque can it produce, or how long does a high strung engine last vs a slower running bigger displacement engine producing the similar hp. It used to be said that producing 1 hp per cubic inch on a naturally aspirated gas engine was quite a milestone. Look at todays gas vehicle engines for example as numerous ones go over that 1 hp per cubic inch with more precise fueling, variable valve timing and yes the dreaded "interference" engine design that can breathe better yet.
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Post by hardrockacres on Sept 6, 2023 7:57:58 GMT -6
As northern farmer mentioned Hp per CC or litre is all based on tune of the engine or how it was built. My ThunderCat sled was factory rated at ~165hp, this is a 999cc 2 stroke engine. But I have modified it with internal work, etc and it is now dyno'd at 212 hp - still a 999cc engine. Same with my sidewinder factory it is a 998cc 4 stroke rated at 180ish hp. I have added a multi tune flash to it and it now has a max of 300hp -still at 998cc.
At the very high end you have top fuel cars set at a max displacement of 500cc with around 11,000 HP.
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