Sump baffles?

[k@rlos]

While cruising down the motorway at 65-70mph in my baywindow bus a car pulled across lanes in front of me and I had to hit the brakes, HARD! Wheels locked and the camping gear in the back came forward, also during that moment of terror the oil pressure gauge momentarily dropped to 0 and the oil light came on. Obviously under such hard braking all the oil rapidly runaway from the oil pick up, was only got a split second but it’s not something I like the idea of.

It’s a 2110 type 1 with a CB performance 2 quart deep sump and extended pick-up, is there a method to baffle a deep sump?

Thanks

[Shane Tuttle]

Was the proper length oil pickup tube installed?

[k@rlos]

Yes

[runamoc]

maybe the brakes 'stopped' the engine briefly
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[Dale M.]

Have really hard time believe you lost oil pressure with deep sump .... Pretty hard for maybe 6+ quarts of oil to hide from deep pickup tube...

In several years of Auto cross racing never lost oil pressure with the violent sloshing of oil in deep sump...
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...

[74 Thing]

What's your oil level at? Is the pickup tube loose or sucking air?

[airschooled]

[mikedjames]

Braking hard at speed you probably also got a lot of air in the oil for a moment as it piled up at the front of the crank, and was thrown around by the crank.

Not a lot you can do, and for a short time the bearings will still be working on oil not molten metal.

I once did similar, cornered hard on a roundabout and then braked hard for the traffic queue at the exit, with fairly low oil level and the pressure dipped to zero and then picked up to normal again. I pulled over, noticed everything back to normal, carried on.
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[k@rlos]

[k@rlos]

[jimmyhoffa]

With any sort of bolt on sump that does surprise me too, that said, sump baffles turned my car from undrivable off-road to a really fun worry free car.

I use mine in the "other way" (side to side slosh conrol) because my issue was hard corners and sliding in the dirt, but it was absolutely night and day for me. The windage tray really didn't do anything. I swapped it out for these plates I made and it just totally solved the problem.

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[Alstrup]

I have never done baffles in an external oil sump. But some 10 years ago i was involved in an outlaw Formula Vee engine. These cars are so low that a sump is kinda dangerous to drive with. Next they are also illegal. Only a very small "cup" is allowed, like about 1,8" below the sump. On this particular engine we made a X baffle in the sump in order to get the oil back to the pick up fast and in just about all thinkable situations. We did everything we could to control the amount of oil needed. We used a 26 mm pump and thinner oil over the "normal" choice (21 mm pump with 20W/50 oil) This way we could control the oil pressure and relief better. The engine was overfilled with 0,25-0,3 l oil and it seemed to do the job alltogether. The oil light did flicker once in a while, but only for a split second.
I have only done it this one time. So not much experience with it though.
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https://www.thesamba.com/vw/forum/viewtopic.php?t=435993

[evanfrucht]

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[Wreck]

have you any external filters and coolers ? I always check my oil level with the engine hot and straight after I've turned off the engine ,before the oil has a chance to drain back to the sump .
I friend that builds and races FVEE's checks his oil when the engine is hot idling . They only use a Tuna can sump extension , you will not out brake or out corner one of those and he doesn't get oil surge .

[k@rlos]

[Wreck]

[frenchroast]

[volksworld]

unless you were stepping on the clutch when you locked up the brakes i'm also voting that you basically stalled the engine

[sjbartnik]

[FreeBug]

Maybe it was the time. Braking from high speeds can take a while, and all that time generating Gs (well, not quite, but you get the idea) , and if the braking lasts long enough, the oil is using the front of the case as the sump, and there's no pick-up there.

I imagine if you simply ran the oil level at stock height, the issue would,d be resolved