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Where to install oil catch can honda2/13/2022 And the other valve cover vent that originally went to the intake is now ran to the other catch can. (so there is no more PCV on the motor) its just a line to a catch can with a breather. As you can see the original PCV was removed and replaced with a -10 bung threaded in, then we just ran a fitting off that threaded bung to one catch can. Here is the bracket and catch cans all bolted in. As you can see our once thread-less hole now has threads. Here is what the hole looks like with the Nutsert installed. This tool works like a rivet tool, you thread a nutsert on to it, insert it into the hole, and then squeeze like you would with a rivet tool. Next we used a Nutsert tool to add threads so we just use a bolt to tighten the bracket down, no need for a nut. Here is what it looks like with both holes drilled. We marked where we wanted the holes to be drilled to mount the bracket. Here is Patrick measuring out the hose length before cutting. As you can see in the picture above everything is just getting test fitted, nothing is bolted down. Next you are going to want to test fit all the lines and make sure you have proper clearance for the intake once its reinstalled. The quality and craftsmanship is amazing! This is what the Radium 2 can set up looks like, Its such an amazing piece. Rigby loves being right in the center of the action. Yes, there are companies that have very high quality filters, and baffle systems in their catch cans, that will cut down on the amount of “contaminated” air that is recirculated back into the intake system, but I feel that the best thing is to just let it vent to the atmosphere. This will ensure you are not getting any “contaminated” air sucked into your engine, and all your getting is fresh air. To properly set up a vented system you must cut all connections of PCV, or valve cover venting to the intake tube, or intake manifold, and remove the PCV completely. But I think there are a few to many variables with the theory, and thus you should just do what works best for you. There are some people that believe that you must have the can mounted above the engine to stop it from filling the catch can to quickly. So even if it was recirculated there would be no vacuuming sucking out the vapors anyway, and you would be just relying on the pressure building up to expel the gasses/vapors. This method seems to be best because you are not recirculating any of that contaminated air back into the engine which could potentially lower engine performance, and the fact that engines at WOT (wide open throttle) create little to know vacuum. I would say that the majority of people will use the vented one. This is a save the planet way of getting rid of blow by, however this will have some negative effects on the engine. The problem with a factory PCV set up is that it is designed to take those gasses/vapors caused by blow by and feed them back into the engines intake manifold/intake tube which then gets burned up during the combustion cycle, and is turned to exhaust and blown out the car. This is why you will want to upgrade to a catch can style setup that will be more suited to the needs of a more powerful engine, or an engine that lives high in the RPM’s. However, the more performance you squeeze out of your car, the more likely this OEM system will no longer be adequate. This is why all cars come equipped with a PCV (positive crankcase ventilation) system installed form the factory. Blow by is the small amount of air that will sneak past your piston rings during the compression stroke of the engine. This excess pressure is caused by blow by. A catch can, put simply will help relieve excess crank case pressure that has built up in your engine. Lets talk catch cans, and why you need one.
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