Oil Pressure ?'s

WhiteDevil

New Member

Feb 4, 2003

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San Diego

Dec 1, 2006

#1

• Dec 1, 2006

• #1

Well the 347 has 2,000 miles on it now and i just had a quick question about oil pressures. On cold start up i get about 52-53psi and it stays there at idle or driving. Once the car has been warmed up for a while it will be at 50psi steady while cruising. Once hot at idle it drops to around 27psi. Right when i hit the gas it goes back to 50psi. I just wanted to make sure this is normal

 

WhiteDevil

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Feb 4, 2003

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Dec 1, 2006

#2

• Dec 1, 2006

• #2

anyone?

 

urban96

bubb rubb says:"woo woooooo"

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Sep 24, 2002

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Syracuse, NY

Dec 2, 2006

#3

• Dec 2, 2006

• #3

seems normal IMO

 

Killercanary

The car that set the bar.

Founding Member

Nov 29, 1999

5,676

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76

Altoona, PA

Dec 2, 2006

#4

• Dec 2, 2006

• #4

Seems OK to me. Its just your oil thinning out when warm, and the pressure comes back with RPm as the pump spins faster.

My old stock 302 would drop to 10psi or lower at idle right before I hurt it. It was nice and loose!

 

SeventyMach1

Keep it lubed .... keep it straight .... and keep

Mar 30, 2005

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North Carolina

Dec 2, 2006

#5

• Dec 2, 2006

• #5

Killercanary said:

My old stock 302 would drop to 10psi or lower at idle right before I hurt it. It was nice and loose!

Click to expand...

I would crap myself if that happened to me.





JP, my pressure is about the same as yours. They're supposed to fluctuate like that. But mine only drops about 5 psi at idle. I'm not saying you have bad pressure, though .... I have no idea. What pump did you put in there?

 

final5-0

Mustang Master

Apr 6, 2003

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DFW Texas

Dec 2, 2006

#6

• Dec 2, 2006

• #6

Sounds OK to me John

Grady

 

4Jenna

Founding Member

Sep 12, 2001

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AZ

Dec 3, 2006

#7

• Dec 3, 2006

• #7

HV pump?
If so thats much lower than mine (HV Melling)

 

blksn955.o

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Mar 15, 2002

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st.louis mo 314

Dec 3, 2006

#8

• Dec 3, 2006

• #8

Mine is EXACTLY like that with the std. volume pump on my DSS pro bullit 306. I have somewere around 3-5k miles on it (speedo/odo way off)

 

WhiteDevil

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Feb 4, 2003

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Dec 3, 2006

#9

• Dec 3, 2006

• #9

Mine is a blueprinted melling stock volume pump. About 2,000 miles on the stroker now. Dyno next saturday! Thanks guys

 

BlownFiveLiter

have car, will race....wait, it doesn't run

15 Year Member

Nov 29, 1999

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Chicagoland

Dec 3, 2006

#10

• Dec 3, 2006

• #10

That doesn't sound bad to me personally. What weight of oil are you running through it?

 

WhiteDevil

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Dec 3, 2006

#11

• Dec 3, 2006

• #11

10W40 Castrol right now for another 1,000 miles. Then it will be 15W50 Mobil 1 Full Synthetic.

 

OrangeMustangGt

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Mar 7, 2002

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Cape Cod, MA

Dec 3, 2006

#12

• Dec 3, 2006

• #12

yup, i just put a cheepo mechanical oil pressure gauge on my bronco. It does the same thing. 50 cold, 25 warm cruising, and 10 at idle warm

 

Grn92LX

Fidanza Man!

Founding Member

Jan 14, 2001

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New York

Dec 3, 2006

#13

• Dec 3, 2006

• #13

WhiteDevil said:

10W40 Castrol right now for another 1,000 miles. Then it will be 15W50 Mobil 1 Full Synthetic.

Click to expand...

Why are you waiting so long for synthetic?

Post up the dyno #'s after you go. Good luck.

 

DDSTANG94

New Member

Dec 9, 2006

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FRASER, MICHIGAN

Dec 9, 2006

#14

• Dec 9, 2006

• #14

THIS IS NOT NORMAL. IT SOUNDS LIKE YOUR BEARINGS ARE ALREADY WORN OUT.

 

SQUEEZE&STROKE

New Member

Jun 24, 2005

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SOUTHERN CA

Dec 11, 2006

#15

• Dec 11, 2006

• #15

DDSTANG94 said:

THIS IS NOT NORMAL. IT SOUNDS LIKE YOUR BEARINGS ARE ALREADY WORN OUT.

Click to expand...

That is PLENTY of oil pressure...right around what my 331 runs at. Dont be scared, the std volume pumps have been recommended by everyone I have talked to...you dont need the HV pump it robs power.