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Oil restriction question
#1499558
09/10/13 12:05 PM
09/10/13 12:05 PM
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Joined: Feb 2009
Posts: 1,532
off the grid
340B5
OP
pro stock
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OP
pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
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How much in terms of HP and quicker rpm does restricting oil drainback in the lifter galley gain?
Yeah, it's got a smallblock.
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Re: Oil restriction question
[Re: AndyF]
#1499561
09/11/13 08:39 PM
09/11/13 08:39 PM
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Joined: Jul 2008
Posts: 30,431
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,431
Florida STAYcation
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Quote:
There is some power to be gained there but it isn't a ton. Probably single digits.
....and with the thought of FRYING the valve springs ?... no thanks .. 
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Re: Oil restriction question
[Re: Sixpak]
#1499563
09/11/13 11:09 PM
09/11/13 11:09 PM
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Joined: Mar 2006
Posts: 9,843
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,843
MI, usa
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Quote:
Trying to figure out why you'd do this - to reduce windage? Would be neat if there's a way to direct the oil from the drain back holes and shield it from being affected by the crank vortex, but in general I'd think you would not want to restrict oil in the lifter galley. Whatever you can do to get it back downstairs to the bottom of the pan the quickest way possible would be what you want.  What's the theory on restricting it?
Look at the BES engine masters late Hemi. It has tubes running down from the valley area into the pan. Very ingenius.
Doug
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Re: Oil restriction question
[Re: dvw]
#1499564
09/12/13 09:09 AM
09/12/13 09:09 AM
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Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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My W2 engine had this. The head work was already done. They were done by Wayne County and were full of epoxy around the pushrods and all with external drainbacks. The lifter galley was blocked with only the drainbacks at the front and rear.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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