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My turbos are above the engine. Can I tap the valve covers for an oil drain?

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Old 04-20-2008 | 09:18 PM
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Default My turbos are above the engine. Can I tap the valve covers for an oil drain?

Was just looking at another option than tapping the oil pan. Can I just tap the valve covers and return the oil there? If so is there any area I should aim for.
Old 04-20-2008 | 09:54 PM
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I'm no expert, but I don't think you'd want that very hot thinned oil right there on the rocker arms and circulating down. I've personally never seen it done thru the valvecovers, but have seen it through the top of the front cover or into the side of the pan above the fill line (where I ran mine).
Old 04-20-2008 | 11:34 PM
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I was wondering about the thin oil as well.

I'd rather not tap the pan only because this will be in an off road application and the oil level will be all over the place often submerging the outlet fitting.
Old 04-20-2008 | 11:36 PM
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timing chain cover?
Old 04-20-2008 | 11:41 PM
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the sts kit drains into the oil cap on the valve cover.
Old 04-21-2008 | 12:02 AM
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I would say no problem at all. The oil is more likely to be frothy than super-thin, but it won't hurt anything. Maybe try to plumb it in near the draindown holes.

Jim
Old 04-21-2008 | 02:18 AM
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Alot of guys run restricted pushrods to keep more oil in the pan as LS1's already over-oil the top end. With that being said I wouldnt add anymore oil in the valvecovers...I would do them in the front timing cover or oilpan.

Also it will not matter if the oil return fitting in the pan is submerged. If the turbos are high enough that they can gravity drain into the valve covers, then it will not matter whats happening in the pan.
Old 04-21-2008 | 06:28 AM
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I would do it in the timing cover.Maybe weld some fittings near the top of the cover.
Old 04-21-2008 | 07:34 AM
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EPP did it to the front of the oil pan
Old 04-21-2008 | 09:53 AM
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Originally Posted by black98ws6ta
Alot of guys run restricted pushrods to keep more oil in the pan as LS1's already over-oil the top end. With that being said I wouldnt add anymore oil in the valvecovers...I would do them in the front timing cover or oilpan.

Also it will not matter if the oil return fitting in the pan is submerged. If the turbos are high enough that they can gravity drain into the valve covers, then it will not matter whats happening in the pan.
the amount of oil going to the turbo is so small compared to anything else in the motor it won't matter. And more often than not, the restricted pushrods are there to make up for a straight through solid lifter.

And a submerged drain is a BAD idea. Any crankcase pressure at all and the oil will push right up the drain and out the seals in the turbo. Seen it first hand, makes a HUGE mess.
Old 04-21-2008 | 10:01 AM
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I would put the drain either in the timing chain cover or the oil pan. I would think you would want to get the oil back to the pan as quickly as possible.
Old 04-21-2008 | 11:03 AM
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We have drained into the valve covers with no issues, but you would need to be quite far above the valve covers to run it as a drain. Do you have any pics of the setup, it sounds cool!
Old 04-21-2008 | 12:44 PM
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mine is in the front of my pan



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