Hey, im new to R/C and have done all my research ect..
I am planning on purchasing the HPI nitro mt racer truck..
I have been to a couple of shops around my state and have checked all the info ect.
I am interested in a top quality engine but engines are quite expensive here.

So i plan to buy second hand, the workers at the hobby shops says this is fine as long as the engine works, and they show it running for a full tank, so i can see that it is working fine and fluent.

What motors would you recomend look for, i have been looking at the OS .12, but at the moment i am open to all ideas.
thanks