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kadub
Samba Member
Joined: November 04, 2004
Posts: 444
Location: Auburn, Wa
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 Posted: Thu Feb 21, 2013 4:25 pm Post subject: |
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| Drysump or not, the cam lives below the crank, and is not submerged in oil, so the filling of the 3/4 head is still an issue even with "low" oil levels with deep sumped engines, as well as drysump engines. It's not like the crank is whipping through a pool of oil in the sump slinging it over to the 3/4 side. |
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yamaducci
Samba Member
Joined: March 30, 2010
Posts: 2373
Location: Mount Airy, Maryland
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| Posted: Fri Feb 22, 2013 12:47 pm Post subject: |
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| 58Dub wrote: |
| yamaducci wrote: |
| tarsomadeinbrazil wrote: |
What level of oil inside of cover valve in high RPM? Times ago I see one video with RPM x level of oil inside cover valve, but I dont remember where I see now...someone see this video? Have one window (acrilic or glass) in the cover valve and can see the level of oil.... I don't know if this topic is correct here  |
If/When I run these spray bars I will also run a drysump line to the bottom of the valve cover to suck the oil out of the cover and send it to the cooler. The right cover would otherwise be nearly empty and the left cover would be full due to crank rotation.
The video you are talking about is from Jake Raby. do a search on him or his site. |
if you run a drysump, would the crank still throw that much oil into the head? I thought with the sump being all but empty, it would greatly reduce that. |
I built the engine with a dry sump that is why I say "Otherwise" it would fill the 3/4 side with oil.
With the dry sump the only way the oil level would rise is with a high flowing spray bar at high RPM. My intent on getting the oil sucked back to the sump and back to the cooler is for the purposes of cooling the head and springs a few degrees. A normal engine does not this sort of additional cooling but my engine is on the extreme end of the scale to be honest.
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My 2498 Turbo Re-Build Thread: http://www.thesamba.com/vw/forum/viewtopic.php?p=5578697#5578697
3rd Brake Light Safety Stars- I still have a couple with blue light left. Email me if interested. |
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yamaducci
Samba Member
Joined: March 30, 2010
Posts: 2373
Location: Mount Airy, Maryland
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| Posted: Fri Feb 22, 2013 12:50 pm Post subject: |
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| kadub wrote: |
| Drysump or not, the cam lives below the crank, and is not submerged in oil, so the filling of the 3/4 head is still an issue even with "low" oil levels with deep sumped engines, as well as drysump engines. It's not like the crank is whipping through a pool of oil in the sump slinging it over to the 3/4 side. |
Run a 90 mm full circle crank with a wet sump and you will see that the crank does fling oil into the 3/4 side and all the way up the breather tube; over the engine and down to the other side 
_________________
-John Cox
My 2498 Turbo Re-Build Thread: http://www.thesamba.com/vw/forum/viewtopic.php?p=5578697#5578697
3rd Brake Light Safety Stars- I still have a couple with blue light left. Email me if interested. |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23945
Location: SHALIMAR ,FLORIDA
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| Posted: Fri Feb 22, 2013 1:23 pm Post subject: |
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| I think there were other issues at play,was the oil pressure regulator open causing the oil to releave to the #3 pushrod tube??? spray bars can also be in the valve covers.I like the idea of having them pressure regulated also. |
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kadub
Samba Member
Joined: November 04, 2004
Posts: 444
Location: Auburn, Wa
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| Posted: Fri Feb 22, 2013 7:40 pm Post subject: |
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| yamaducci wrote: |
| kadub wrote: |
| Drysump or not, the cam lives below the crank, and is not submerged in oil, so the filling of the 3/4 head is still an issue even with "low" oil levels with deep sumped engines, as well as drysump engines. It's not like the crank is whipping through a pool of oil in the sump slinging it over to the 3/4 side. |
Run a 90 mm full circle crank with a wet sump and you will see that the crank does fling oil into the 3/4 side and all the way up the breather tube; over the engine and down to the other side |
I don't doubt it 
My post was in response to 58Dub's post on the previous page. |
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