Did some mods to my crank case evacuation setup today. I removed the inline catch can, and ran the from crank > check valve > exhaust. Warmed the bike and went to check vacuum at the oil filler cap, it was notably harder to pull with the bike idling than ever before. Pulled it off and blocked with my hand, reved the bike to 2k and held it.
There is a very significant level of vacuum generated and it ramps as RPM rises. As vacuum seriously minimized oil misting/frothing, I'm not at all concerned about the volume of oil/stuff it will pull out of the crank case, the position of the breather tube on our motors is perfect for this.
at the very top, and not directly accessing the crank case, but instead an area connected by air passages.
If the **** weather would go up just 10f, I'd take it and have it dynoed to validate any power gain from this...
I originally intended to run it like the OP to the air filter, however, I realized that I really DO NOT want any of the vapors coming out going back in while at Boneville, when it's hot, at altitude, and will be more detonation prone than ever.
