Sparky-(Admin) 19,660 #1 Posted October 21, 2015 Picked a new (used 2009) Ariens snow-blower this past weekend with a Briggs motor. Can anyone tell me what the HP is? Or what the formula is to calculate it? Says 205CC and 9.00Ft pounds of gross torque.Thanks!Mike........... Share this post Link to post Share on other sites
Ed Kennell 35,966 #2 Posted October 21, 2015 Looks like a shade under 9HP to me Mike. Share this post Link to post Share on other sites
Sparky-(Admin) 19,660 #3 Posted October 21, 2015 How did ya calculate it?Mike......... Share this post Link to post Share on other sites
WNYPCRepair 1,875 #4 Posted October 21, 2015 According to this site, 6.3 http://www3.telus.net/shebang/engine_cc_to_hp_calculator.html 1 HP = 32.5 CCs Tork x 70% gives the same, 6.3.9 * .7 = 6.3 Share this post Link to post Share on other sites
Sparky-(Admin) 19,660 #5 Posted October 21, 2015 Oh brother....I'm not to happy to hear its that low.I'm hoping it moves snow and doesn't quit when the going gets tough!Mike....... Share this post Link to post Share on other sites
WNYPCRepair 1,875 #6 Posted October 21, 2015 http://www.abbysguide.com/ope/discussions/59569-0-1.html A better explanation, maybe: http://www.abbysguide.com/ope/discussions/33671-0-1.html Share this post Link to post Share on other sites
Ed Kennell 35,966 #7 Posted October 21, 2015 Sorry Mike, I was not converting cc to cu in correctly. I was using the Kohler engine spec displacement info which averages out to 2.3 cu in /1 HP. in the 4-7 HP range.Using this method, your 205 cc /2.54^3/ cu in =12.51 cu in 12.51cu I n /2.3 cu in/ 1HP = 5.44 HP This of course is assuming the Kohler HP ratings are accurate.Not sure which method is more accurate, but using Brians 32.5cc =1HP, a 10 HP K241 with 23.85 cu in or 390.8 cc displacement equates to 12 HP not 10.Bottom line....5.5 to 6.5 HP would be close. Share this post Link to post Share on other sites
WNYPCRepair 1,875 #8 Posted October 21, 2015 Sorry Mike, I was not converting cc to cu in correctly. I was using the Kohler engine spec displacement info which averages out to 2.3 cu in /1 HP. in the 4-7 HP range.Using this method, your 205 cc /2.54^3/ cu in =12.51 cu in 12.51cu I n /2.3 cu in/ 1HP = 5.44 HP This of course is assuming the Kohler HP ratings are accurate.Not sure which method is more accurate, but using Brians 32.5cc =1HP, a 10 HP K241 with 23.85 cu in or 390.8 cc displacement equates to 12 HP not 10.Bottom line....5.5 to 6.5 HP would be close. The formulas I posted work on the engines at Harbor freight and some Kohlers, but not on my Onan. I found this, which may help explain it: http://www.justanswer.com/small-engine/2thx1-considering-ariens-snowblower-205-cc-biggs.html#re.v/149/ Even better: http://movingsnow.com/2008/cc-to-torque-to-hp-conversion-update/ Share this post Link to post Share on other sites
Sparky-(Admin) 19,660 #9 Posted October 21, 2015 Well I'm very disappointed to find out that its that low in HP. I had just assumed that it was around 8hp since its a 24" wide blower.Thanks for all the info guys.Mike............ Share this post Link to post Share on other sites
Ken B 3,116 #10 Posted October 21, 2015 Well I'm very disappointed to find out that its that low in HP. I had just assumed that it was around 8hp since its a 24" wide blower.Thanks for all the info guys.Mike............ Better bring that trinket back Mike! It probably won't be too bad..... I really wish they would stop beating around the bush on hp ratings and just list it on the engine in big old numbers like they used to! Make sure that you check the oil fill caps each time that you use the machine, they have been known to loosen up, fall out and puke all of the oil out. This happened to a guy at work while he was using his newish Cub Cadet blower at night. He didn't know the cap fell out puking every ounce of oil until the engine seized! He said the oil was real clean which is why he didn't notice, and he said he checked the caps and dipstick for tightness before each use. You didn't get rid of your old school walk behind did you? Share this post Link to post Share on other sites
Sparky-(Admin) 19,660 #11 Posted October 21, 2015 Nope...I still have my 38 year old Gilson ready to go! I only bought this one because I'm always wondering when the Gilson may crap out or some NLA part will break and then I'm without a blower (don't have a WH blower attachment either).Mike.......... Share this post Link to post Share on other sites
Ken B 3,116 #12 Posted October 21, 2015 I wouldn't worry too much, at the end of the day I think you will be pretty happy with it, I'd be willing to bet it will throw the snow farther than the Gibson... Share this post Link to post Share on other sites
953 nut 52,046 #13 Posted October 21, 2015 A few years ago there was a class action lay suit brought against Briggs and a few others regarding misrepresentation of horse power; since then they have only been referring to displacement. Share this post Link to post Share on other sites
fast88pu 3,313 #14 Posted October 22, 2015 Its a 6.5 hp and you won't have any problem throwing the snow with that Share this post Link to post Share on other sites
SylvanLakeWH 24,250 #15 Posted November 4, 2015 According to this site, 6.3 http://www3.telus.net/shebang/engine_cc_to_hp_calculator.html 1 HP = 32.5 CCs Tork x 70% gives the same, 6.3.9 * .7 = 6.3 Math!!! Moderators - can we please ban math from the forum...my head hurts. 1 Share this post Link to post Share on other sites
953 nut 52,046 #16 Posted November 4, 2015 Here is some information on the HP issue. http://www.washingtonpost.com/wp-dyn/content/article/2008/02/15/AR2008021501732.html 1 Share this post Link to post Share on other sites
Ken B 3,116 #17 Posted November 4, 2015 Just another fine example of how greed has a way of changing everything, lawyers and law suits. Anyway, horse power is the only rating I'm interested in. Its just sounds so damn silly to tell someone hey I got a new 12.5 torque snow blower. The question will always be. oh golly gee that is just swell but how many horse power is it? I just bought a new Ariens snow blower that I will use at work. It has the 12 5 torque rating. This is a fairly large 28 inch snow blower and that engine looks dinky on there. It doesn't feel like it has much balls either.. The recoil on the engine says Ariens on it, most consumers will probably think that is just dandy but what they don't know is that it is a Lifan made in China engine. The next round of lawsuits will be that these units say Made in the U.S.A. all over them, what a crock... The GOOD news is that I was able to take the old Ariens ST 10/28 snow blower home. Now, this bad boy rocks with that old flat head 10 hp Made in the USA Techy on there she throws the snow an EASY 50 feet. I actually prefer to use a snow blower at my house, a tractor just digs my yard up and makes a mess. WET HEAVY snow is no problem for this blower. I have used it on the wettest snow you can imagine here at work, using ice melt on the sidewalks and then getting a surprise snow storm over night will do that... I've never had an issue where it wouldn't throw the snow.... It this blower can't throw it then a tractor ain't gonna push it. 1 Share this post Link to post Share on other sites
953 nut 52,046 #18 Posted November 4, 2015 Acording to this on-line calculator @ 3600 RPMs a 12.5 Torque equils 8.57 HP, sounds like Ken got the stronger of the two, and the price was right too. http://www.1728.org/mtrtrq.htm Share this post Link to post Share on other sites
