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What are PCV Oil Catch Cans and Why Do Direct Injection Engines Need One

Posted by on 4/17/2017 to News

Purpose of your Stock PCV System:

The PCV (Positive Crankcase Ventilation) system is designed to regulate and remove fumes from the engine crankcase, and to alleviate crankcase pressure which could cause oil leaks or seal damage. It’s a way for gases to escape in a controlled manner from the crankcase of an internal combustion engine.

During normal operation of an internal combustion engine, there’s a compressed air and fuel mixture inside the combustion chamber that is ignited and as a result, forces the piston down. A small amount of that ignited mixture leaks past the piston rings and ends up in the crankcase. This leakage is often referred to as “blow-by” (leakage past the piston rings), as well as oil mist.

Purpose of the Clean Side Separators

Posted by on 12/9/2016 to News

Here at McNally we offer two types of Clean Side Separators. Our regular CSS is made of heat resistant plastic and our Premium CSS is made of billet 6061 T6 aircraft grade aluminum.

The Clean Side Separators are specially designed for use with Catch Cans to trap and remove oil vapors from the clean side of the oil separating system while retaining 100% MAF metered air.

  • Improves Engine Performance
  • Engine Runs Cooler
  • Increases Fuel Efficiency

What Oil Catch Can Should I Purchase?

Posted by on 8/8/2016 to News
We hear this question all the time. What type of Oil Catch Can goes with my vehicle? You can image with all the different types of engines and performance components that can be installed, how confusing it can seem to be. It really isn’t.
Each vehicle varies with the amount of contaminates that is filtered out. Our Regular Oil Catch Can is a total height of 10 inches with a 3 inch diameter and our Monster Oil Catch Can is 10 inches with a 4 inch diameter (with stems attached). While choosing what Rx Oil Catch Can by McNally to install in your vehicle there are some things that should be aware of. How many engine cylinders do I have and does your engine have a turbo system installed?

Catch Can VS Catch Can – In the Wild, Wild, West!

Posted by on 8/8/2016 to News
There are many choices out there in the market place for Catch Cans. You seem to see them everywhere now. Just a simple search on Ebay could only confuse you more if you were already wondering what type of Oil Catch Can to get for you vehicle.
Oil Catch Cans have been around for a while now. With the event of Direct Injection Engines or Port Injection Engines that promise higher fuel efficiency consumers of these vehicles are finding out that that promise will soon go away. It doesn’t take long for the blow-by produced from these type of engines to hinder performance and horsepower. To combat this car owners should have an Oil Catch Can installed in their vehicle. Now comes the problem… Which One? There are many to choose from.

Intake Valve Deposits in Gasoline Direct Injection Engines

Posted by on 3/15/2016 to News
Gasoline Direct Injection (GDI) is used on a variety of late model engines: Audi, BMW, GM, Ford, Hyundai, Lexus, Mazda, MINI, Nissan, Porsche, VW and others. A GDI sprays fuel directly into the combustion chamber under high pressure, rather than spraying fuel under low pressure into the intake ports in the cylinder head. GDI increases fuel economy and power 15 to 25 percent, but there is a downside that is now becoming apparent as these engines with accumulate miles. The problem is carbon deposits are building up on the inlet side (top) of the intake valves. The deposits can create turbulence and can restrict airflow into the cylinders causing performance and drivability problems (hesitation, stumbling, misfiring, and even hard starting). The thicker the carbon deposit buildup on the valves, the worse the drivability problems.

Welcome to our NEW online store

Posted by on 1/1/2016 to News
Welcome to our online store! Our team is proud to announce our website has a NEW LOOK and we look forward to serving you all in the future. If you have any questions about this store or the products found within, please don't hesitate to contact us any time. Our website has been carefully designed to provide you with an amazingly flexible online shopping experience, and its ease of navigation is something we think you'll grow to depend on and appreciate. Feel free to browse our entire product catalog, and let us know if you have any questions, comments or concerns about the items housed within. Our team is always ready and willing to assist our customers, and we are happy for your visit.