Originally Posted by
Storydude1
You'll need some sort of baffle. straight pipe won't let it breathe.
Advantage to a 4stroke nitro is TORQUE. They don't spin as fast, but they pull stumps.
There is a reason the air guys use the smaller 4 strokes to pull big props.
.. wrong..........four strokes need nothing but a straight pipe.......no expansion chamber needed...so there is a 100.00 item off your car/truck......