Ram air for your model!

Model Airplane News, Apr 2001 by Chianelli, Chris

Horsepower is like money: you can never have too much of it.

And when you get an engine that runs more smoothly and produces less mess in the bargain, you know you have a winner. In this case, I'm referring to the Power Ram velocity stack from B&B Specialties. Hot-rodders have used velocity stacks for 50 years to hop up car engines, and the principle -works just as well for model airplanes. The key is to create a positive airflow through the carburetor. As a result, fuel mixes better, so there isn't any siphoning of raw gas; that means no residue around your carb to mop up. It also smoothes the airflow and allows your engine to turn more rpm, and that means more power! More consistent airflow also ensures a more positive engine response through all flight maneuvers. The Power Ram is precision-machined from aluminum stock and comes in two pieces: the velocity stack and the retaining -ring.

B&B Specialties, 14234 Cleveland Rd., Granger, IN 46530; (219) 277-0499; www.bennetbuilt.com.