91 notch, what oil are you running??

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doorvip

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Sep 11, 2009

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Sep 21, 2009

#1

• Sep 21, 2009

• #1

I have a 91 notch with a reman 306, 302 with a .30 over bore, gt-40 P heads and a b 303 cam. I have 50psi of oil pressure on a cold start then about 25 after it warms up. I'm running 10-40 engine oil, but was thinking about 20-50 engine oil to get some better pressure , what do you think??? 400 miles on engine.

 

Grn92LX

Fidanza Man!

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Sep 21, 2009

#2

• Sep 21, 2009

• #2

your oil pressure is well with in spec. I would do 10w30 for winter and 10w40 for spring/summer.

 

D

doorvip

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Sep 21, 2009

#3

• Sep 21, 2009

• #3

Im really not happy with that oil pressure tho. I would like 50 all the time.

 

poulrais

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Mar 25, 2009

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Sep 22, 2009

#4

• Sep 22, 2009

• #4

Do you have 25 PSI while driving say, at 2500 RPM? If it is the case then yes I woulod think your oil pressure is kind of low for a rebuilt...

 

87GT40

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Sep 22, 2009

#5

• Sep 22, 2009

• #5

poularis is right. if its that low when driving then double check some things but if its at 25 at idle then 50 while driving then its perfect. also the initial pressure will be higher than when it warms up because the oil is still cold.

 

bentley429isBAC

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Jul 23, 2009

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Sep 22, 2009

#6

• Sep 22, 2009

• #6

Just run the 10-40 its fine, your oil pressure is normal. I am 50-60 psi cold 25-30 psi warm idle 50+ cruisin. Been like that for awhile in a bomb, you'll be alright

 

liljoe07

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Feb 18, 2009

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Sep 22, 2009

#7

• Sep 22, 2009

• #7

doorvip said:

Im really not happy with that oil pressure tho. I would like 50 all the time.

Click to expand...

You dont need 50psi all the time.

 

Mustang5L5

That is…until I whipped out my Bissell

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Feb 18, 2001

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Sep 22, 2009

#8

• Sep 22, 2009

• #8

Is it 25psi at idle, or 25PSI when you are on the highway doing 60MPH??

25 PSI at idle is fine. Rule is 10psi per 1000RPM.

Mine runs the same as yours, 50-60PSI at startup, but dips to 25psi once warmed up. As soon as I stab the throttle, it blips up to 55psi or so

 

D

diggy pits

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Sep 4, 2009

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ARNOLD MO.

Sep 23, 2009

#9

• Sep 23, 2009

• #9

IM RUNNING 20-50 BRAD PENN IT SEEMS TO BE WORKING OUT

 

D

diggy pits

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ARNOLD MO.

Sep 23, 2009

#10

• Sep 23, 2009

• #10

doorvip said:

I have a 91 notch with a reman 306, 302 with a .30 over bore, gt-40 P heads and a b 303 cam. I have 50psi of oil pressure on a cold start then about 25 after it warms up. I'm running 10-40 engine oil, but was thinking about 20-50 engine oil to get some better pressure , what do you think??? 400 miles on engine.

Click to expand...

IM RUNNING 20-50 BRAD PENN IT SEEMS TO BE WORKING OUT

 

7upstang91

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May 30, 2008

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Sep 23, 2009

#11

• Sep 23, 2009

• #11

Anything but Royal Purple.