Local tuner

[Mike Norris]

I do not have a diagram but there is a picture on my website of an actual LS3. I can do a quick description for you about what ports you may have and what they go to as far as a proper LS3 PCV and breather goes.

The actual PCV, or dirty side of the system, on an LS3 and most non-DoD engines is a hose that goes from the nipple on the valley cover under the intake on the passenger side to the port on the intake just behind the TB on the passenger side. The fresh air, or clean side, goes from the nipple at the front of the passenger valve cover to a fitting on the intake tract in front of the TB blade but after the MAF sensor.

There is also a nipple on the intake just behind the TB on the drivers side that is for an EVAP system connect and most hybrids do not use this and are capped off. There can also be a nipple on the back of the drivers valve cover and it is usually capped off. This nipple is thew PCV hose (dirty side) access on a DoD or AFM equipped vehicle.

My catch can goes in line on the PCV or dirty side hose of the system.



Hope this helps. If you do want to get some tuning done when I am in CA, let me know soon so I can be sure to ake time for you.

Mike Norris