Originally Posted by Arboleda

In XRC's latest issue, the offroad LRP ZR .21X is reviewed. The engine has some potency to be sure (it broke the record for peak horsepower and has decent power even after the peak) but there's one sentence that didn't quite sound right to me. I've still got a lot to learn in this hobby and wanted to hear thoughts on this quote:

"The downside to all that power is that fuel consumption is going to be near Hummer-like proportions..."

If you take an engine and run it rich, it'll produce less power and consume more fuel. If you lean it to where it should be, it'll produce more power and consume less fuel right? But if you are comparing engine X to engine Y, is the one that produces more power likely to consume more fuel?