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wayne1234 |
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#1
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Member ![]() ![]() Group: Members Posts: 260 Joined: 6-April 09 From: indianapolis in Member No.: 10,238 Region Association: None ![]() |
Ok dual webber carbed 2.0, I think the PO had the head vents running to a T then to the oil breather near the oil cap... Is this right?? I did a search and now I'm really confused,,,,
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Jake Raby |
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#2
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Engine Surgeon ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States ![]() |
I was expecting a much more dramatic reply from Murray. He ruined my day. Trust me, I was prepared for engagement and still am. (I spent some time on Google last night and had a lot of really good laughs!)
QUOTE 2. going down the road of ...the oil drains back faster with unvented heads....I have to wonder EXACTLY AND PRECISLY...how this observation was accomplished. How about two race seasons.. The same engine was used for both seasons. In the first season we had issues with oil control toward the end of each session. I could duplicate this situation on the chassis dyno if I simulated race conditions with throttle and RPM, sometimes seeing 8,000 RPM for 5 minute stints without mercy. The issue would occur at any oil temperature or oil pressure. In the second season we tried a wild and crazy idea and blocked off the head vents in the heads and the problem could not be replicated on the chassis dyno. We then took the car to the track and didn't have an issue all year long. We had no more than a shot glass full of oil in the catch can all season! Since this experience I have continued to experiment with this on my personal cars and gather data to support it from other competition and full street engines. Murray, have you ever purposely blocked off a vented head on a 914 engine to see what occurred? |
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