A 500 2stroke would smoke it. It is right there with a 440 I bet though....fanner that is....That DBW is lousy on the ACE....even in sport mode.
Just curious, what is the percentage of Doos Sleds does the Ace make up?
Had heard years ago that the only reason they were being built was to offset emissions percentage of there line.
I can't give you a answer, but just a guess. Doo offers the ace engines in many different sled models, and chassis. Utility, sport, 2ups, etc. This tells me they sell very well in the market. Left overs are by far fewer, and not near as friendly of "deals" on them. There are few to find in the used market, and they sell very quickly. I am sure the "ACE" engine line was developed, and bought about for not only emissions, but for versatility of different applications it would work in. Modular Design Manufacturing. Such as being modular, part of the final vehicle in design from the get go. Being designed in as fit, weight, balance, CG's, handling as to the final product what ever it is. BRP uses variants of this "ACE" engine in watercraft, sleds, UTV, and now on road Rykers. It was a absolute surprise to myself how this engine performs! It's just a convenience of fuel economy, and fuel type makes no difference in it's performance. I, and many others have put on many, many miles with E gas, no concerns. On our Canada trips, it's a relief knowing we have a very safe fuel range of 240+ miles, no matter riding conditions. Gets the same mpg however you ride it. Fueling places up there aren't on a regular basis where we like to go. Western Ontario is worse so yet! My sled has no lag, or soft spot in "sport" mode. Light weight, and handles like no other 4 stroke. Very good tight trail sled! Love it.