[DeTomaso] Crankcase Evacuation System

[Nolan Scheid]

Good morning Jim,
We used to do this on Datsuns years ago. The idea was to angle the tube running into the exhaust so 
that the exhaust passing by would make a vacuum. Then the vacuum in the crankcase could help the 
rings seal a little better on a loose motor. I don't remember the dyno numbers any more but there 
was a slight readable improvement in power. I assume that is still good practice in a motor set up 
for the best power.

Take care,
Nolan



----- Original Message ----- 
From: "Jim Hendrickson" <chendric at bellsouth.net>
To: "'Julian Kift'" <julian_kift at hotmail.com>; <detomasoregistry at gmail.com>; <wdemelo at cogeco.ca>; 
"'De Tomaso List'" <detomaso at realbig.com>
Sent: Wednesday, September 23, 2009 11:19 PM
Subject: Re: [DeTomaso] Crankcase Evacuation System


>
>
>
> How does this system get fresh air into the crankcase? I see two outs with
> no in.
>
> A normal system pulls fumes out through the PCV valve and has fresh air
> coming in through the other valve cover - either through a hose to the air
> filter or a cap with some type of filter media. One valve cover has fresh
> air in and the other valve cover has crankcase fumes going out through the
> PCV valve to the base of the carb or a port on the intake manifold.
>
/detomaso