AndrewG- trust Mike, and us, in trucks this size you need more motor than you do in something 50% lighter. Big truck = big motor, hence why a little S can motor being used in a maxx sized truck would fry & not be able to achieve a speed in excess of about 20mph. Since full throttle is only used sparingly usually ( due to lack of space ), the motor wont destroy the truck's driveline very easily and overpower the truck- yu just gotta learn how to tame the beast & handle the power
And Mike did state that he logged his runs with an Eagletree too.