Using the same cylinders and heads as it’s bigger brother the Scarlett 7U, the Verner Scarlett 5Si is a modern radial that brings all the romance, sound and power in a minimal package at a great price. With specs and performance that put it right next to other 80HP engines, the Scarlett 5Si is still lighter than the other direct drive options and without the cost and complexity of the higher revving redrive engines of similar output. This motor would be a great fit for many aircraft that use an 80HP geared engine, but the sound and look of that engine just doesn’t cut the mustard. The Verner 5SI gives your classic looking aircraft the look and sound that you are looking for.
The Scarlett 5Si uses a throttle-body fuel injector with 2 main ports and 1 backup, distributing fuel-air to all 5 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 system with return from the lower cylinders and the bottom of the case, and ignition is controlled by computer and fired by individual ignition coils. The crankcase is cast magnesium for strength and low weight.