Here's some differences between four strokes and two strokes


Four stroke
Cons
-More expensive
-More maintenance
-Less powerful per capacity
-Much poorer power to weight ratio
-Can be harder to operate than two strokes

Pros
-Lower fuel consumption
-Quieter
-Can run a much bigger prop
-Fit better and look better in most scale planes
-Sounds cool, very scale like
-More low end torque than two strokes



Two stroke
Cons
-Higher fuel consumption
-Noisier when propped for very high rpm or inadequately silenced
-Peakier power curve

Pros
-Inexpensive
-Wider selection
-Robust
-Powerful for capacity
-Excellent power to weight ratio
-Can run high rpms



Austin