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I'll add my 0.2 cents (euro, that is) here to this already lenghty thread.
Running a pipe or hose from the heads to the sump will fill the head on the outside with oil when making a long sweeping turn. This already happens without the hose, through the pushrodtubes! To cover this problem you can lengthen the pushrodtubes on one side, where they'll enter the block. This way you'll create a barrier so the oil can't flow as easily into the pushrodtubes as with standard tubes. Don't block the openings between the lifters and the pushrodtubes completely, duh!
You can use hoses or tubes but then you'll have to fit one-way valves in them, and it would have to be rather large diameter hoses or tubes. At least #10.
I prefer venting the crankcase-fumes into the exhaust as these fumes tend to lower the octane rating when you feed them to the intake (just a little, but it does). This way you could get a problem when running very high compression or boost.
Hope to have added some usefull info.
Cheers
Richard
Last edited by Richie; January 23rd 2003 at 07:03.
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