Engines: Difference between revisions
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*$239 [https://www.amazon.com/Engine-Stroke-Gasoline-Recoil-Splitter/dp/B07SS34FL6?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=A1K701V6WP5WUK] | |||
*$260 [https://www.walmart.com/ip/Gas-Engine-420CC-15-HP-4-Stroke-Gasoline-Motor-Engine-Recoil-Start-Go-Kart-Log-Splitter-Lifan-Type-Engine-OHV-Pull-Start-Garden-Tool-Gas-Motor/2472065482?wmlspartner=wlpa&selectedSellerId=101089463&adid=222222222282472065482_101089463_14069003552_202077872&wl0=&wl1=g&wl2=m&wl3=42423897272&wl4=pla-295289030566&wl5=9023282&wl6=&wl7=&wl8=&wl9=pla&wl10=484571015&wl11=online&wl12=2472065482_101089463&veh=sem&gad_source=1&gclid=CjwKCAiAqNSsBhAvEiwAn_tmxYkq9CuVjXhmOfrCIh62z250nQr79lEgVZD-W7WoiqUnZX-tt7Cr_hoC3FUQAvD_BwE] | *$260 [https://www.walmart.com/ip/Gas-Engine-420CC-15-HP-4-Stroke-Gasoline-Motor-Engine-Recoil-Start-Go-Kart-Log-Splitter-Lifan-Type-Engine-OHV-Pull-Start-Garden-Tool-Gas-Motor/2472065482?wmlspartner=wlpa&selectedSellerId=101089463&adid=222222222282472065482_101089463_14069003552_202077872&wl0=&wl1=g&wl2=m&wl3=42423897272&wl4=pla-295289030566&wl5=9023282&wl6=&wl7=&wl8=&wl9=pla&wl10=484571015&wl11=online&wl12=2472065482_101089463&veh=sem&gad_source=1&gclid=CjwKCAiAqNSsBhAvEiwAn_tmxYkq9CuVjXhmOfrCIh62z250nQr79lEgVZD-W7WoiqUnZX-tt7Cr_hoC3FUQAvD_BwE] | ||
*$240 [https://www.amazon.com/DONSU-4-Stroke-Cylinder-Keyed-Straight-Gasoline/dp/B07ZF55ZXY/ref=asc_df_B07ZF55ZXY/?tag=hyprod-20&linkCode=df0&hvadid=385169503131&hvpos=&hvnetw=g&hvrand=11692132176509796224&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023345&hvtargid=pla-837532324975&psc=1&mcid=eade5014d1d1381eb9fc9d25c3d1869b&tag=&ref=&adgrpid=78287725613&hvpone=&hvptwo=&hvadid=385169503131&hvpos=&hvnetw=g&hvrand=11692132176509796224&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023345&hvtargid=pla-837532324975&gclid=Cj0KCQiAhomtBhDgARIsABcaYym1hCjCxZJJ6gxQLB7Ey8y4rnRwqnHiL7XOmyv8ZXzDBvPt02ZEUN0aAkeiEALw_wcB#customerReviews] | *$240 [https://www.amazon.com/DONSU-4-Stroke-Cylinder-Keyed-Straight-Gasoline/dp/B07ZF55ZXY/ref=asc_df_B07ZF55ZXY/?tag=hyprod-20&linkCode=df0&hvadid=385169503131&hvpos=&hvnetw=g&hvrand=11692132176509796224&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023345&hvtargid=pla-837532324975&psc=1&mcid=eade5014d1d1381eb9fc9d25c3d1869b&tag=&ref=&adgrpid=78287725613&hvpone=&hvptwo=&hvadid=385169503131&hvpos=&hvnetw=g&hvrand=11692132176509796224&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023345&hvtargid=pla-837532324975&gclid=Cj0KCQiAhomtBhDgARIsABcaYym1hCjCxZJJ6gxQLB7Ey8y4rnRwqnHiL7XOmyv8ZXzDBvPt02ZEUN0aAkeiEALw_wcB#customerReviews] | ||
Revision as of 00:33, 25 February 2024
About
- 2-strokes have 3-9 hp at 50 cc. See cc to hp - [1]
- Ex - Stihl MS 660 is 7 hp and 91 cc
- 1 hp for $25 for simple small engines.
- 1000 hp are $25k for the largest tractor in the world.
50 cc 2 stroke
- Only 1.3 hp? $50 about. [2]
Large
- JD 9 series engine, 14.l, 450 hp - around $30k [3]
50 cc with Electric Start
- $209 -[4]
3hp
- $40 - [5]
6.5 hp
- For the $/hp ratio, the 212 cc range appears slightly better than the 16 hp range. 420 cc for 2 - cheaper than any 440 cc.
Predator HF $150 212 cc - [6]. Performance review is solid [7]- GX160 clone Walmart $134 [8]. Elect. start $70 more [9]
- Walmart $144 7.5 hp 212 cc Electric Start [10]
- With electric start - 212 cc - $170 [11]
- Honda GX160 clone - $160 - 6.5 hp [12]
20 hp Range
Selection
OSE's 2020 choice for an engine is the Poulan 19 hp x4 for 74 hp - [13]
Gas
The threshold for relatively inexpensive engines is 19 hp.
- 27 hp - $980 - $36/hp - [14]. And needs muffler.
- 24 hp - $870 - $36/hp [15]
- 22 hp - Briggs - $29/hp - [16]
- 20 hp - Kohler $700 - $35/hp + muffler - [17]
- 19 hp Poulan - - $20.5/hp - $390 - [18]
- 16 hp - $350 - Poulan - [19]. No gas pump, gravity feed gas. But, doesn't come with muffler. Has 15A charging. Muffler - [20]
- 16hp - $370 - Duromax, $23/hp - [21]
- 7 hp - $159 - $22/hp - but no electric start - [22]
- 18hp Duromax $18/hp - has muffler, but not charging
- such as for a fan - [23]
420 cc
Diesel
- 30 hp Kubota $5000 - $166/hp [27]
- 33 hp Kubota - $6500 [28]
- 65 HP - $6300 - $100/hp [29]
- 200 hp - $55/HP - $11k - Cummins - [30]
- 360 HP Mack used - $10/HP - $3600
- 300 hp [31] $7500 [32]
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 - [33]
- 2000-4000 year life of car engines [34] - 150k miles
- Tractor engines - 5-10k hours [35]
- Pellet-fired stirling engine buggy - see PDF file
- Several links to various engine types including Sterling, Wankel, Steam, etc. [36].
Types
Rotary