Originally Posted by JOE SI

I'm now going on my 3rd season racing nitro sedan and have ran mainly Novarossi engines. Right now I'm running a keep on and I am very happy with it. Last season I ran the mUrnan rbm3 and loved that motor also.
Now, the keep on is a long stroke motor and the rb is not, can someone explain the difference?
I like the feel of the short stroke better, but used a friends reds motor and really like how smooth the powerband was and that the power was there when it was needed.
Im kind of torn between the Reds and the newest OS motor.
If you were to buy a motor today what would you buy? Why?
Thank you