Ok I had just recently bought a LST monster truck. It came in the mail and I noticed it had a HPI .25 motor. I mean the thing had barely been run, but I just finished breaking in the motor and started fine tuning and this little bugger flies to no end. What my question is should I worry about getting the original Mach .26 engine or Keep this HPI .25 in it? Would I notice much of a difference even if there was a difference between the two?

Thanx

DJ

I have a Savage 25SS,,, the HPI motor is good,,, But I did notice an increase in performance with the Mach 26.

I think the HPI is a better engine physically. I am one of many people whos engine has had some sort of failure early on. Mine chose to sheer the push rod and exit the side wall.