down in the valley..

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Ironmike

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Hey guys! Wanted to do something like 'ya see in the pic. When running a roller in these LA blocks there's a huge amount of windage flying off the cam lobes.

I want to "curtail" this if possible.

The pic is a picture of a picture and crappy quality, but I think you can see what's been done. I would love to know if it's epoxy, metal mender putty, etc. Love to do the same but it's a but scary thinking one of those little plates breaks loose and falls down into the rotating assembly.

Any thoughts, ideas?
 

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Ironmike said:
Hey guys! Wanted to do something like 'ya see in the pic. When running a roller in these LA blocks there's a huge amount of windage flying off the cam lobes.

I want to "curtail" this if possible.

The pic is a picture of a picture and crappy quality, but I think you can see what's been done. I would love to know if it's epoxy, metal mender putty, etc. Love to do the same but it's a but scary thinking one of those little plates breaks loose and falls down into the rotating assembly.

Any thoughts, ideas?
Click to expand...

They make a windage tray that sits over this area if you are worried about hot oil spraying on the underside of the intake.

Why do you want to keep the oil from flying all over? Are you trying to get it to return to the pan faster?

Mike
 
I have seen builders epoxy in screens in those openings or bolt in a small metal pan over all of the openings. The intent was to prevent any metal parts from falling into the rotating parts in case of breakage of a pushrod or lifter and saving the bottom end and block. I do not believe what you see there is for windage. A crank scraped would be more effective for lowering the windage and keeping the oil in the pan.
 
If you put plates on like that, won't the oil just fall back down onto the crank,or cam, and go round and round and round and round and.......?
Seems to me if it flies up through those slots, it might chose a different path back down into the pan?And now it will be in liquid form.
 
Raceheads Engines, out of Ontario built it. They are always in the Amsoil Engine Challenge. They specifically state it's there to control windage from the cam lobes. The article is in the fall issue of Engine Masters Magazine.

These guys apparently know their stuff. They saw the point in it. So do I. If you've ever primed a roller cammed LA with the intake off you'd know what I mean.

I don't see the point in a lot of things people do, but I try to understand.
 
The purpose of that is not to curtail windage. It is to keep broken valve train parts from falling down onto the spinning camshaft and into the connecting rods.
 
Ironmike said:
Raceheads Engines, out of Ontario built it. They are always in the Amsoil Engine Challenge. They specifically state it's there to control windage from the cam lobes. The article is in the fall issue of Engine Masters Magazine.

These guys apparently know their stuff. They saw the point in it. So do I. If you've ever primed a roller cammed LA with the intake off you'd know what I mean.

I don't see the point in a lot of things people do, but I try to understand.
Click to expand...

http://www.mopartsracing.com/parts/Milodon.html
Prevents hot oil from splashing on intake manifold, thereby eliminating power loss. Keeps surplus oil out of valve covers by eliminating oil splash from lifter bores. Maintains oil pressure (during pushrod or rocker arm failure) by keeping lifters in their bores, except with roller cams.
M32620 Small Block LIFTER VALLEY BAFFLE $36.95
 
Just saw that one Mancini's website. It looks like it might be for a Magnum block.........not sure. Hate to call those guys. Not very good with customer service.

So I'm running a Super Victor. No worries about hot oil. It's the AMOUNT of oil flung up there that bothers me. Windage.

Thanks for the link!
 
That modification is from the late 60s Trans Am engine development. It's to address an oil starvation issue to the #4 main. It's a combination of leakage around the lifters, wider lower end clearances, and too much velocity of the oil in the galley that causes the lower end to starve. #4 is the furthest from the pump and the 5/6 rods' crank throw can starve if oil's leaking out everywhere else.
If they said it's for windage, they're either totally off base, or trying to get you off base.

If you want to control windage off the cam, you need to cover the openings in the valley, enlarge the drainbacks, fabricate covers for the lower side of the cam, and use a scraper and oil pan with oil control measures (not for a street car).
 
I thought he was talking about the blocked off lifter valley holes. I figured everybody familiar with Mopars knew what the oil pipe was for.
 
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