I am running a D-1SC and have opened the valve cover rubber hoses to atmosphere as per the ATI instructions. I rerouted the hoses below the car to locations around the wheel wells.

I am getting oil deposited to the underside of the car now. This is great for rust proofing, but sucks when you like to keep it clean!

I am also noticing that I can hear the tap tap tap of the valves being amplified under the car. At first I thought I had an exhaust leak, but then I noticed it was only occuring as vacuum decreased. Thus opening the PCV valve and allowing the rubber tube to be opened to the valve cover.

Has anyone else noticed this?

Can the rubber hoses be run to the rear of the car or will this cause too much of a restriction?

Thanks.

 

Using a long hose could create too much back pressure on the vent. I tried a long hose before, but it caused my valve covers to leak. Maybe it wasn't draining properly or something, but now I'm using a simple catch can with a breather. It works well.

 

Can you send some photos?

Did you have the noise too?

Thanks.