I'm in the middle of a decision making process. I thought I was going to pull the trigger on ITB's for my LS1. Previously I had a double catch can planned for my standard intake/throttle body setup....which won't work well for the ITB's without a vacuum source. I'm not that familiar with crankcase ventilation issues with LS motors, however I have become a little more concerned because my particular motor has some mileage on it and has high compression heads and a low quench. Blowby could be exasperated by lack of vacuum from the crankcase.
Wondering what others with ITB's might have done or if it became an issue? I realize most don't have a measure of crankcase pressure but could see the symptoms of problems. I've thought about adding a vacuum pump. Nothing too crazy like a Moroso (can't afford it), something like an electric pump.
Wondering what others with ITB's might have done or if it became an issue? I realize most don't have a measure of crankcase pressure but could see the symptoms of problems. I've thought about adding a vacuum pump. Nothing too crazy like a Moroso (can't afford it), something like an electric pump.