2si 808
title: "2si 808" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["two-stroke-aircraft-piston-engines", "straight-three-engines"] topic_path: "general/two-stroke-aircraft-piston-engines" source: "https://en.wikipedia.org/wiki/2si_808" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::data[format=table title="infobox aero engine"]
| Field | Value |
|---|---|
| name | 2si 808 |
| engine_type | Two-stroke aircraft engine |
| manufacturer | 2si |
| national_origin | United States |
| :: |
| name=2si 808 | image= | caption= |engine_type= Two-stroke aircraft engine |manufacturer=2si |national_origin=United States |first_run= |major applications= |produced= |number_built= |developed_from= |variants_with_their_own_articles=
The 2si 808 is a family of in-line three cylinder, liquid-cooled, two-stroke, dual ignition, aircraft engines that were designed for ultralight aircraft.
The basic engine was originally designed and produced by JLO-Motorenwerke of Germany and was later acquired by the AMW Cuyuna Engine Company of Beaufort, South Carolina and marketed under the Cuyuna brand name. Later the engine was marketed by Cuyuna under the Two Stroke International (2si) brand. Cuyuna no longer markets engines for aircraft use and the 808 is out of production.
Development
The 808 is a conventional three-cylinder engine that weighs 130 lb in its L95 and L100 aircraft versions. The engine features dual capacitor discharge ignition, liquid cooling, fuel pump, a cast iron cylinder liner, ball, needle and roller bearings throughout. The aircraft version was offered with an optional gearbox reduction system. Starting is electric starter only.
Variants
;808 L95 :Gasoline aircraft engine with three carburetors, 95 hp at 7000 rpm, weight 130 lb, out of production. ;808 L100 :Gasoline aircraft engine with three carburetors, 100 hp at 7000 rpm, weight 130 lb, out of production.
Applications
Specifications (808 L100 aircraft engine)
and start a new, fully-formatted line with -- |ref=Aerocrafter |type=Three cylinder, two-stroke aircraft engine |bore= |stroke= |displacement= |length= |diameter= |width= |height= |weight=130 lb |valvetrain= |supercharger= |turbocharger= |fuelsystem= |fueltype=Minimum 92 octane |oilsystem=premixed oil and fuel |coolingsystem=liquid cooled |power=100 hp at 7000 rpm |specpower= |compression= |fuelcon= |specfuelcon= |oilcon= |power/weight=
|designer= |reduction_gear=gearbox
|general_other= |components_other= |performance_other=
References
References
- Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook'', page 69. BAI Communications. {{ISBN. 0-9636409-4-1
- Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-2 Cybair Limited Publishing, 2001. {{ISBN. 0-9680628-1-4
- (n.d.). "2si Company Profile".
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