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Re: Twin carbs crank case ventilation for emmisions

Subject: Re: Twin carbs crank case ventilation for emmisions
by ddgonzal on 2016/1/24 8:22:34

PCV is not just for emissions, it keeps your oil more clean than a catch can -- and people have had 52 years to solve the problem of how to use it (PCV came out in 1964)


* PCV connects to the inlet manifold
* crankcase top vent connects to inside of the air filter

Use the -3 AN connection, Tee it, with an adapter hose going up in size to fit the PCV valve. Yes, -3 is small, technically too small for a brake booster, but it works. If your rings are in good shape (not producing excess blowby) there should be no problems sharing it with the Brake Booster port. If you have forged pistons you may have too much blowby when the engine is cold

Drill a hole in the air filter and use a plastic breather hose adapter
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