Racingjunk Forums

Racingjunk Forums (https://www.racingjunk.com/forums/index.php)
-   Engine Tech (https://www.racingjunk.com/forums/forumdisplay.php?f=9)
-   -   Crankcase evac (https://www.racingjunk.com/forums/showthread.php?t=29947)

jreiley 02-27-2011 07:42 AM
Crankcase evac
 
Do I need a evac system on a bb chevy normally aspirated?

TS1955 02-27-2011 08:13 AM
You need some type of evac on any engine. Wether you use a vacuum pump or header evac system or even a pcv valve the crank case has to be ventilated.

TS1955

zipper06 02-27-2011 07:47 PM
Kinda the rule of thumb, if you have mufflers you will need a PVC system, if you run open headers you will need a header evac or vacuum pump.

JMO

Zip.

billyd21970 02-28-2011 08:34 PM
you cant run a header evac set up if your running mufflers?

zipper06 03-01-2011 06:45 PM
Originally Posted by billyd21970
you cant run a header evac set up if your running mufflers?
Nope, you'll get the biggest oildown on the engine that you have ever seen. If you are running all out/high RPM.
Been there and done that.

Zip.


All times are GMT -8. The time now is 08:07 AM.