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-   -   Oil Pressure (http://www.clubcobra.com/forums/bay-area-cobra-club/104776-oil-pressure.html)

menace1 05-30-2010 10:44 PM
Oil Pressure
 
I have a stroked 351 W and need to know what the oil pressure should be at normal operating temps. With the oil temp @ 80 c and rpm at 2,000 the pressure is 26 psig. same at 3k and 4k.
Have 12 a/n lines running to cooler and using Brad Penn 20-50 oil.
Cold start up pressure @ 1,000rpm is 35 psig. Engine runs great but the pressure seems low ??

Glenn

blykins 05-31-2010 06:02 AM
That would require an answer that's based on a lot of different variables.

It would be easier if you told me what pressures you were seeing...

DrAwender 05-31-2010 10:24 PM
If its zero and your temp is over 210 then I have bad news for you.
J

PANAVIA 06-01-2010 12:49 AM
There are variable points, but my rule is ; at 180F , - No lower than 35 at 2000 rpm.

Steve

coosawjack 06-01-2010 03:15 AM
I use Mobil I 15W-50 and hot on my 408W I have 25-30 PSI at 900 RPM idle and 55-60 PSI at 2000 RPM.....stock oil pump!!:D

Bob In Ct 06-01-2010 10:16 AM
I've got a 351 Ford Motorsports engine, nothing special. I'm running Redline 5W-30 with a Moroso Racing filter (27 microns). 55 PSI at 2,000 RPM hot.

Bob

FUNFER2 06-01-2010 01:59 PM
Quote:
Originally Posted by drawender (Post 1054917)
if its zero and your temp is over 210 then i have bad news for you.
J
:lol::lol::lol::lol::lol::lol: ;)

DAVID GAGNARD 06-01-2010 05:59 PM
Quote:
Originally Posted by menace1 (Post 1054662)
I have a stroked 351 W and need to know what the oil pressure should be at normal operating temps. Thanks,

Glenn

Anything bewteen 25 psi and 60 psi.........depending on engine rpms!!!!!!!!!!!!!!!!!!!!!!!

David

csx wnab 06-01-2010 09:24 PM
i go with what a guy named smokey yunick used to say about oil pressure. all that is needed is10 pounds for every 1000 rpm the engine is turning. so there.

Got the Bug 06-01-2010 09:42 PM
Quote:
Originally Posted by menace1 (Post 1054662)
I have a stroked 351 W and need to know what the oil pressure should be at normal operating temps. Thanks,

Glenn
Glenn,

Congrats on the SPF! Great to have another titanium with black stripes in the South Bay.

Look forward to meeting you at an upcoming breakfast.

http://www.bayareacobraclub.com/localpage.html

menace1 06-01-2010 11:54 PM
Hi Doug

So your the reason all the old ladies and cops are snarling at me lol...
Looking forward to meeting you and others at a breakfast soon.

Glenn

menace1 06-02-2010 12:04 AM
Thanks for all your input guys, I bought a test oil pressure gauge and found that the pressure was normal. I'm calling Nisonger Monday and ordering a new oil gauge. Bigtime relief...

Glenn

DAVID GAGNARD 06-02-2010 05:38 AM
Quote:
Originally Posted by csx wnab (Post 1055172)
i go with what a guy named smokey yunick used to say about oil pressure. all that is needed is10 pounds for every 1000 rpm the engine is turning. so there.

Yes, but can you really trust a guy named Smokey????? You do know all racers lie, don't you!!!!!!!!!:D:LOL:;);)

Quote:
At 80 c and running @ 2,000 rpm the pressure is 26 psig. same at 3k and 4k . Have remote oil filter and using 12 a/n lines to the cooler. Engine runs great but the pressure seems a little low to me ??
Yes, that does seem real low to me, 26 psi at idle would be my minimum, at 2000 rpms or better your oil pressure should be double that, regardless of oil lines/cooler...first thing you should do is check your gauge,then, I'd check with the engine builder and see what he says, ask about your bearing clearances also....



David


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