Engines: Difference between revisions
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*20 hp - Kohler $700 - $35/hp + muffler - [https://www.amazon.com/Kohler-KT715-3047-7000-Vertical-Engine/dp/B07VMBP6TY/ref=sr_1_6?dchild=1&keywords=19+hp+poulan+engine&qid=1602900506&s=lawn-garden&sr=1-6] | *20 hp - Kohler $700 - $35/hp + muffler - [https://www.amazon.com/Kohler-KT715-3047-7000-Vertical-Engine/dp/B07VMBP6TY/ref=sr_1_6?dchild=1&keywords=19+hp+poulan+engine&qid=1602900506&s=lawn-garden&sr=1-6] | ||
*'''19 hp Poulan''' - - $20.5/hp - $390 - [https://www.ebay.com/i/254194614988?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=254194614988&targetid=935431404933&device=c&mktype=pla&googleloc=9023315&poi=&campaignid=10454521601&mkgroupid=104612011660&rlsatarget=pla-935431404933&abcId=2146002&merchantid=101723803&gclid=CjwKCAjwiaX8BRBZEiwAQQxGx--SgNgCEmMPgC4Ek30zXf6Lo18eX2SlvgzHy47POZRs2Sc3yRgR4hoCUU4QAvD_BwE] | *'''19 hp Poulan''' - - $20.5/hp - $390 - [https://www.ebay.com/i/254194614988?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=254194614988&targetid=935431404933&device=c&mktype=pla&googleloc=9023315&poi=&campaignid=10454521601&mkgroupid=104612011660&rlsatarget=pla-935431404933&abcId=2146002&merchantid=101723803&gclid=CjwKCAjwiaX8BRBZEiwAQQxGx--SgNgCEmMPgC4Ek30zXf6Lo18eX2SlvgzHy47POZRs2Sc3yRgR4hoCUU4QAvD_BwE] | ||
*16 hp - $350 - Poulan - [https://www.ebay.com/i/264276331029?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=264276331029&targetid=935431406293&device=c&mktype=pla&googleloc=9023315&poi=&campaignid=10454521601&mkgroupid=104612011660&rlsatarget=pla-935431406293&abcId=2146002&merchantid=101723803&gclid=CjwKCAjwiaX8BRBZEiwAQQxGx9r4Y-vyQnNyLjRltvMhrrzHpTKhKKBBNDEfRq-c8V7h6kQwfRsCShoCjSwQAvD_BwE]. No gas pump, gravity feed gas. But, doesn't come with muffler. | *'''16 hp - $350 - Poulan''' - [https://www.ebay.com/i/264276331029?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=264276331029&targetid=935431406293&device=c&mktype=pla&googleloc=9023315&poi=&campaignid=10454521601&mkgroupid=104612011660&rlsatarget=pla-935431406293&abcId=2146002&merchantid=101723803&gclid=CjwKCAjwiaX8BRBZEiwAQQxGx9r4Y-vyQnNyLjRltvMhrrzHpTKhKKBBNDEfRq-c8V7h6kQwfRsCShoCjSwQAvD_BwE]. No gas pump, gravity feed gas. But, doesn't come with muffler. | ||
*16hp - $330 - Duromax, $20.6/hp - [https://www.amazon.com/DuroMax-XP16HPE-Electric-Recoil-Engine/dp/B0040ZWU18?ref_=ast_sto_dp] | *16hp - $330 - Duromax, $20.6/hp - [https://www.amazon.com/DuroMax-XP16HPE-Electric-Recoil-Engine/dp/B0040ZWU18?ref_=ast_sto_dp] | ||
*7 hp - $99 - $14/hp - but no electric start - [https://www.harborfreight.com/65-HP-212cc-OHV-Horizontal-Shaft-Gas-Engine-EPACARB-69727.html?ccdenc=eyJjb2RlIjoiMjYwMDEyOTMiLCJza3UiOiI2OTcyNyIsImlzIjoiOTkuOTkiLCJwcm9kdWN0X2lk%0D%0AIjoiODgxNSJ9%0D%0A&cid=paid_google|*PLA+-+Top+SKUs+-+All+%28Branded%29|Shop+Press|69727&utm_source=google&utm_medium=cpc&utm_campaign=*PLA+-+Top+SKUs+-+All+%28Branded%29&utm_content=Shop+Press&gclid=CjwKCAjw_Y_8BRBiEiwA5MCBJmekp_1bVencitpDjdNbKuXfFBgJjMpvpitWg3gWQVOLRJN7aFkYfxoC450QAvD_BwE] | *7 hp - $99 - $14/hp - but no electric start - [https://www.harborfreight.com/65-HP-212cc-OHV-Horizontal-Shaft-Gas-Engine-EPACARB-69727.html?ccdenc=eyJjb2RlIjoiMjYwMDEyOTMiLCJza3UiOiI2OTcyNyIsImlzIjoiOTkuOTkiLCJwcm9kdWN0X2lk%0D%0AIjoiODgxNSJ9%0D%0A&cid=paid_google|*PLA+-+Top+SKUs+-+All+%28Branded%29|Shop+Press|69727&utm_source=google&utm_medium=cpc&utm_campaign=*PLA+-+Top+SKUs+-+All+%28Branded%29&utm_content=Shop+Press&gclid=CjwKCAjw_Y_8BRBiEiwA5MCBJmekp_1bVencitpDjdNbKuXfFBgJjMpvpitWg3gWQVOLRJN7aFkYfxoC450QAvD_BwE] | ||
Revision as of 20:11, 30 July 2022
Selection
OSE's 2020 choice for an engine is the Poulan 19 hp x4 for 74 hp - [1]
Gas
The threshold for relatively inexpensive engines is 19 hp.
- 27 hp - $980 - $36/hp - [2]. And needs muffler.
- 24 hp - $870 - $36/hp [3]
- 22 hp - Briggs - $29/hp - [4]
- 20 hp - Kohler $700 - $35/hp + muffler - [5]
- 19 hp Poulan - - $20.5/hp - $390 - [6]
- 16 hp - $350 - Poulan - [7]. No gas pump, gravity feed gas. But, doesn't come with muffler.
- 16hp - $330 - Duromax, $20.6/hp - [8]
- 7 hp - $99 - $14/hp - but no electric start - [9]
- 18hp Duromax $18/hp - has muffler, but not charging - such as for a fan - [10]
Diesel
- 30 hp Kubota $5000 - $166/hp [11]
- 33 hp Kubota - $6500 [12]
- 65 HP - $6300 - $100/hp [13]
- 200 hp - $55/HP - $11k - Cummins - [14]
- 360 HP Mack used - $10/HP - $3600
Considerations
- Until an open source engine becomes a reality, engine repair is expensive. $50/hr, easily comes to the new engine price for the $300 gas engine. This indicates that small engines are essentially disposable goods.
- For the large diesel engine, parts are expensive.
- Until the advent of the open source diesel engine, engine costs remain 10x as high as they should be.
- Until the OS engine, disposable engines are a suboptimal but acceptable strategy to keep costs of engine systems low.
- It is an immediate priority of OSE to develop open source small engines, $11B market (see Market Size) and larger ones are more like 200 billion
Engine Links
- 500 &U 1000 hour lifetime for small engines - [15]
- 2000-4000 year life of car engines [16] - 150k miles
- Tractor engines - 5-10k hours [17]
- Pellet-fired stirling engine buggy - see PDF file
- Several links to various engine types including Sterling, Wankel, Steam, etc. [18].