The Verner Scarlett 7U is the newest version of 7-cylinder model of the Scarlett series. A great balance of power, weight, and size. Whether a Great War replica fighter, a classic 2-seat biplane, the 7 cylinders and direct drive combine to deliver the right look, sound and power. The 7U uses the same cylinders and heads as the 5SI and the 9S. The crankcase is cast magnesium for strength and low weight.
The Scarlett 7U uses a throttle-body fuel system with 2 main injectors and 1 manual, evenly distributing fuel-air mix to all 7 cylinders. The engine will happily take both auto & aviation fuels. The electric starter is mounted direct to the back of the case. As with all Scarlett engines, the oil is a dry-sump gravity system with return from the lower cylinders and the bottom of the case, and ignition is controlled by computer and fired by individual coils for each cylinder. The direct drive engine has robust bearings and can effectively swing a large prop at a nice low RPM range.
|WEIGHT||183 lbs (82kg)|
|OVERALL DIAMETER||31.89 in (810mm)|
|DISPLACEMENT||290 cu-in / 4740 cc|
|BORE||3.62 in / 92 mm|
|STROKE||4.02 in / 102 mm|
|CARBURETOR||2+1 Jet Injection w. ECU/ W Carburetor|
|FUEL||MOGAS 93 / AVGAS 100 LL|
|OIL SYSTEM||Dry Sump Tank|
|OIL TYPE||AeroShell 15W50|
|ALTERNATOR||12V 200 W|
|STARTER||12V 1000 W|
|MAXIMUM POWER||124 BHP @ 2300 RPM|
|CONTINUOUS POWER||103 BHP @ 2000 RPM|
|TORQUE||287 ft / lb @ 2200 RPM|