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05-30-2010, 10:44 PM
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CC Member
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Join Date: Jul 2009
Posts: 110
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Not Ranked
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
Last edited by menace1; 06-02-2010 at 12:14 AM..
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05-31-2010, 06:02 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,415
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Not Ranked
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...
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05-31-2010, 10:24 PM
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CC Member
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Join Date: Jan 2009
Location: Redwood City,
CA
Cobra Make, Engine: Factory five
Posts: 88
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Not Ranked
If its zero and your temp is over 210 then I have bad news for you.
J
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06-01-2010, 12:49 AM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
There are variable points, but my rule is ; at 180F , - No lower than 35 at 2000 rpm.
Steve
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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06-01-2010, 03:15 AM
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CC Member
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Join Date: May 2002
Location: Beaufort,
SC
Cobra Make, Engine: Classic Roadsters '66 427 Replica-SOLD
Posts: 299
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Not Ranked
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!!  |
06-01-2010, 10:16 AM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Southern Connecticut,
CT
Cobra Make, Engine: SPF - 351W, 944 non-turbo
Posts: 2,105
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Neutral
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
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06-01-2010, 01:59 PM
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CC Member
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Join Date: Oct 2002
Location: Eagle,
Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,307
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Not Ranked
Quote:
Originally Posted by drawender
if its zero and your temp is over 210 then i have bad news for you.
J
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:lol::lol::lol::lol::lol::lol: 
__________________
Regards,
Kevin
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06-01-2010, 05:59 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
Originally Posted by menace1
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
__________________
DAVID GAGNARD
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06-01-2010, 09:24 PM
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CC Member
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Join Date: Mar 2008
Location: fremont,
ca
Cobra Make, Engine: superformance/427 fe ford
Posts: 436
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Not Ranked
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.
__________________
1952 MG TD - 53 HP 1970 SS454 Chevelle - 900hp 2007 spo2669 - 485hp 2001 Spclconst. softtail - 114HP 2006 Roadglide - 88HP
sold Roadglide.....bought 09 XR 1200 - 90 hp stock
i would rather live one day as a lion, than one thousand days as a lamb.
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06-01-2010, 09:42 PM
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Senior Club Cobra Member
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Join Date: Oct 2006
Location: Santa Cruz,
CA
Cobra Make, Engine: SPF 2613 Titanium w/Black, Roush 402SR
Posts: 4,097
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Not Ranked
Quote:
Originally Posted by menace1
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
__________________
Doug
No stop signs, speed limit - Nobody's gonna slow me down - Like a wheel, gonna spin it
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06-01-2010, 11:54 PM
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CC Member
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Join Date: Jul 2009
Posts: 110
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Not Ranked
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
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06-02-2010, 12:04 AM
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CC Member
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Join Date: Jul 2009
Posts: 110
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Not Ranked
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
Last edited by menace1; 09-17-2010 at 05:17 PM..
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06-02-2010, 05:38 AM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
Originally Posted by csx wnab
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.
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Yes, but can you really trust a guy named Smokey????? You do know all racers lie, don't you!!!!!!!!! 
Quote:
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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 ??
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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
__________________
DAVID GAGNARD
Last edited by DAVID GAGNARD; 06-02-2010 at 05:40 AM..
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