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HP vs CC's

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RalphWD45
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PostPosted: Thu Jan 03, 2013 10:53 am    Post subject: HP vs CC's Reply to specific post Reply with quote

I need a horiz shaft gas motor , to run a 6"x 20' auger. there is a gear reducer and motor mounting plate on it, that is aparently for a small gas ne. I opened up the new sale catalog, from Northern Tool, and they have acceptable prices on the few engines that are on sale, but only list them in CC's. How many CC's in a horse power?
 
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MisterT
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PostPosted: Thu Jan 03, 2013 10:59 am    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

Ralphwd45 wrote:
(quoted from post at 19:53:36 01/03/13) I need a horiz shaft gas motor , to run a 6"x 20' auger. there is a gear reducer and motor mounting plate on it, that is aparently for a small gas ne. I opened up the new sale catalog, from Northern Tool, and they have acceptable prices on the few engines that are on sale, but only list them in CC's. How many CC's in a horse power?


Don't quote me on this, but it seems that the older 8 horsepower Briggs engines were 315cc?
 
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Dean
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PostPosted: Thu Jan 03, 2013 12:07 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

Though there is a direct correlation between displacement and power in small engines, there is no absolute conversion table.

That said, 200 CC should be somewhere around 5 - 6 HP at rated RPM.

Dean
 
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Mike M
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PostPosted: Thu Jan 03, 2013 1:07 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

Harbor Freight has some REALLY cheap priced gas engines. Many seem to like them.

I think a lawsuit made them put a stop to advertising HP on small engines. They were way over rating them.
 
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Butch(OH)
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PostPosted: Thu Jan 03, 2013 2:05 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

I didn't go look so my CC may be off a few but from memory the current HF horizontal shaft engines are
79CC 3HP
212CC 6.5
390CC 11
420CC 13

The 6.5 are on sale right now for $99 with a coupon you can get man different places.
 
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Hal/Eastern WA
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PostPosted: Thu Jan 03, 2013 2:41 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

I have a couple of those HF engines. Hard to beat at about $100 on sale most of the time. No problems yet, and they fit fine where I installed them. I think they were around 5 or 6 horsepower, whatever that means.

I needed metric fasteners to attach the engines to the drive frame.

So far, so good--LOTS less expensive than a B&S engine. Good luck!
 
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RN
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PostPosted: Thu Jan 03, 2013 4:18 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

CC refers to cubic Centimeter-100cc is 6 cubic inchs and a hair-1000 cc is 61 cubic inchs. Old Briggs sidevalves were about 1 hp to 3/4 cubic inchs or 50/65cc. a 12 cubic inch or 200cc was 3.5 to 4 hp, the basic 14 cubic inch was the basic 5 hp at about 3200 rpm- or the 3 hp at 2400 rpm. Old 6 inch=100cc was 1hp 1600 rpm. The newer Harbor Frieght,etc are overhead valve and a little more power at somewhat higher rpm -6.5 for 212 cc means about 1hp for 2 cubic inchs but rating is 3600 or maybe 4000 rpm peak( handy for wood splitters) Figure 1hp per 50cc at 3000 rpm and adjust from there as a VERY rough guide for small engines. RN
 
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Bud in WV
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PostPosted: Thu Jan 03, 2013 6:34 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

OK - lets confuse it some more - I have a B&S 15.50 engine on a log splitter - anyone have a clue what that translates to?

I still haven't made the transition from cid to liters! I KNOW what a 327 or a 350 or a 396 or a 409 or a 427 was capable of - 5.1L or 5.6L just doesn't translate well for me - must be 'cause I'm in my 60's!
 
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RalphWD45
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PostPosted: Thu Jan 03, 2013 9:26 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

Thanks Guys! I think I'll order the 6.5 engine, being as I belive a 5 hp will be all I need. It never hurts to have overkill.
 
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CRUSADER
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PostPosted: Fri Jan 04, 2013 12:53 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

Sorry to add to the confusion. But, if I recall they are selling the small engines listed in "torque" now rather than Horse Power, Cubic Centimeter, or Cubic Inch. Last mower we bought was listed as "6.5 Torque." Asked the salesman @ Sear's and that was what he told me. When I asked about the Cubic Cent. or Cubic Inch in reference...he didn't know. The lawnmower was what she wanted so we bought it.
 
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jon f mn
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PostPosted: Fri Jan 04, 2013 1:03 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

My brother has a similar auger. His has an OLD B&S 10 hp, the thing is 3' tall and all cast iron so it probly has better power than a new one. That auger is a full load for it. I would say you will need 12 to 18 hp in the new engines to run it. I'm sure his is 6" x bout 25' long.
 
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jon f mn
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PostPosted: Fri Jan 04, 2013 1:06 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

My brother also used to use a 6.5 hp motor to run a fertilizer auger on a gravity box and that was to much for it, you had to be careful not to stick it. No way 6.5 hp will be enough for you.
 
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mkirsch
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PostPosted: Fri Jan 04, 2013 1:19 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

Bud in WV wrote:
(quoted from post at 19:34:17 01/03/13) OK - lets confuse it some more - I have a B&S 15.50 engine on a log splitter - anyone have a clue what that translates to?

I still haven't made the transition from cid to liters! I KNOW what a 327 or a 350 or a 396 or a 409 or a 427 was capable of - 5.1L or 5.6L just doesn't translate well for me - must be 'cause I'm in my 60's!


15.50 is the peak torque of the engine in ft-lbs.

At least Liters to CID is the same unit. It's displacement.

cc's are displacement. HP's are horsepower. Two completely different things with no direct correlation. IT depends on the design of the engine.
 
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wisbaker
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PostPosted: Fri Jan 04, 2013 9:11 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

in an unrelated note on the Old Kohler K series engines the model number was the # of Cylinders and displacement a 4HP K91 was 9 cubic inches 1 cylinder. IIRC a 141, 14 cubic inch, one cylinder was around 5HP, the 161- 16 cubic inch 1 cylinder was around 7 HP. The 181- 18 cubic inches, 1 cylinder 8 HP. The 10 HP was a K241, 24 CID 1 cylinder, the 12 HP was a 301, 30 CID 1 cylinder. The K 341 was a 34 cubic inch one cylinder. The biggest we had at the course was a K582, 58 cubic inches, two cylinders if I remember it was around 25 HP, it was in a Toro Turf-pro 84.
 
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RalphWD45
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PostPosted: Fri Jan 04, 2013 10:16 pm    Post subject: Re: HP vs CC's Reply to specific post Reply with quote

Thanks a lot JON F mn. I belive you have saved me a $100.00 mistake! I might as well apply that to a larger engine, and be comfortable knowing that it will do what I want!
 
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