Re: Crankcase Ventilation
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Re: Crankcase Ventilation
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I doubt you would still pull any vacuum at the end of a run though.That's why you need the header hoses and valves. Of course,..not legal in Stock |
Re: Crankcase Ventilation
Thanks Mark.
I found this image; http://www.aa1car.com/library/pcv.gif My primary interest in this subject it to maximize ring seal and of course not waste any of those valuable shop rags! |
Re: Crankcase Ventilation
I wanted to try an old style road draft tube. Never got a chance. Of course it wouldn't do anything until you're moving, but I thought it might be worth experimenting a bit.
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Re: Crankcase Ventilation
how about a brake booster check valve for vacuum and ventilation???
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Re: Crankcase Ventilation
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other openings closed up and on the other side I used an anti backfire flapper valve that I got from SRD, there were no openings in the system and the crankcase would hold a good vacuum at idle . I did not and could not run hoses to the headers. This may not have been an optimum system,but I did experiment with it a couple of times. From what I remember I didnt see any improvement ,that didnt mean it didnt have potential though. ed |
Re: Crankcase Ventilation
I tried the hoses to the collectors at the track (not this car) when that stuff first came out. Never found a thing. I tried a slick little check valve with two PVC valves and a closed crank case on the dyno. Pulled good vacuum to about 5000, then it went away. No pressure as high as we were pulling it then (7700) but no power gain. Finally went to one PVC on one side, and a breather on the other. It's a legal vacuum leak, so you may as well use the highest flowing PVC valve you can find. LOL No more condensation in the valve covers that time of the year either. Didn't back-to-back-to-back it, but appeared to be a couple above 8000. Guess it depends on how well yours would like a larger TB.
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Re: Crankcase Ventilation
Late 60's-early 70's GM Power brake check valve on the valve cover & then hose to the intake manifold and DO NOT forget to turn the main seals around!!!-- FED 387
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Re: Crankcase Ventilation
I tried a road draft tube on my 340 about Fifteen years ago and first race they
made me pull it right off!! |
Re: Crankcase Ventilation
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ed |
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