Crankcase Evacuation System
 

I bought a Crankcase Evac. System from the last swap meet. I have a couple of question on installing it. First what hose should I use?? Is the clear tubing the sell at Lowe's good enough or will it just melt. Also have far into the exhaust should the fitting stick out?? any trick on where and how for the header/exhaust I should install it? This is being install on a 72 chevelle.

Thanks,

Travis

http://static.summitracing.com/globa.../mor-25900.pdf

Add a cut like this for a better result
http://www.streetperformance.com/ART...0700/97810.jpg

Ive used that clear hose before, did have any trouble at all!

I use -10 braided with an AN fitting on the valve cover and a hoise clamp on the header end.

Hell Ive used heater hose , worked fine ,even had the GM logo on it . I used the rest of it on a GM resto !!!! David.

I too think heater hose is the common practice, unless you're in close qtrs, with the header tubes, then it's steel braided line but at 2 times the cost.

JMO

Zip.

I use the clear with mesh dishwasher hose that you can get at any hardware store works great . :D

Along with this topic, do you guys use breathers in the valve covers with the evacs?

evacs
 

NO. :)

Thanks, I thought I would ask.

If you installed the draft tubes the way Moroso shows on the link, how will the extra notch help?

Wouldn't the notch be seeing impact pressure?

Have you used a vacuum gage on the cranckcase to verifiy it worked better?

For best vacuum, I don't think the way Moroso shows is best. I've seen 3"hg negitive pressure in the crankcase from draft tubes, but they weren't installed like Moroso shows (and everyone does)

The exaust pulse blasts through the notch and out the angled end creating further venturi vacuum.

I have a few pics of one I installed on my old 66. send email address and I will send pics
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