Ran my Rc Renew modded Argus this past weekend and got to check my run time, 12 minutes on Byron's 30% with 11% oil. This engine keeps up with the v-specs and speeds plus gets awesome mileage! I usually run with the 2081 pipe but got to borrow a F0801 from a fellow racer. Boy! the engine came to life!

Very pleased with this engine. Just ordered my F0801 today!
Thanks Lance.
Alan.