I have a question for other Ofna MBX Pro owners with the Ofna Force .26 engine, About how long of runtime can you obtain from full tank to empty? I've noticed it goes by very fast on mine maybe because the engine is so big? I have to refill about after 8 minutes or so.

All 1/8 scale buggies can do 40'ishMPh. Some close and some over.

A lot of people here post just the opposite of what I am about to say here:
Bigger engines does NOT mean you go faster. You can get more power low and top end out of a good 21 than you can any of the 25's and 26's on the market. The bigger engines do tend to have a lot of torque and not as much top end.

But if you spend the bucks on a good RB Convept or better engine, you can get mre power out of it than the bigger engines. I have a Force 25 and it does not have the top end that i expected. It does have loads of low end. I get 10 - 12 min run time out of it. Depends on if you WOT or just putting around.

study is right, manufacturers can make the bigger engines cheaper becuase they dont need to be as powerful because the toruque makes up for the low rpms.