I always knew that oil was making its way into the intake track due to the crank case being vented into the intake elbow. What I didn't consider was just how much. I am in the process of plumbing a Mishimoto oil catch can, and while I'm at it, I'm installing an Evo intake tube, and AA aluminum boost tube. When I pulled the stock intake tube today, the amount of oil was way, way more than I could have imgined. The factory "accordion" section of the intake was filled to the top of each valley with oil. The entire intake was completely coated all the way up to the filter box. The MAP sensor was coated in an oil bath, and same on the IAT sensor in the boost tube. I have no proof that these sensors are affected by the coat of oil, but considering they are for measuring air, I'm sure they won't mind the absence of oil moving forward.
My plugs are a little dirtier than I think they should be, and I'm sure this is a big reason why. I've read that this also dillutes the octane rating of the fuel. I'm not a chemist, but I do know oil in the combustion chamber isn't a good thing. Maybe it isn't that big deal since thousands of RZR XPT's are running around competely stock with most owners none the wiser. But having seen first hand the amount of oil getting sucked through the turbo and into the engine, I'm doing something about it.
Just thught I'd share with those that might be thinking about adding a catch can.
My plugs are a little dirtier than I think they should be, and I'm sure this is a big reason why. I've read that this also dillutes the octane rating of the fuel. I'm not a chemist, but I do know oil in the combustion chamber isn't a good thing. Maybe it isn't that big deal since thousands of RZR XPT's are running around competely stock with most owners none the wiser. But having seen first hand the amount of oil getting sucked through the turbo and into the engine, I'm doing something about it.
Just thught I'd share with those that might be thinking about adding a catch can.
