1993 Ford Mustang How much oil pressure is too much?

BANSHEEMAN730

MEMBER
1993 FORD MUSTANG
V8
2WD
AUTOMATIC
20 MILES

I have a 93 mustang with a wound up 306 that I just rebuilt. During the rebuild I Upgraded to a high volume oil pump with a 7 quart deep pan as well. When the car is at idle im right at 60 pounds of pressure but when you tach it up it jumps all the way to 80 pounds. Is this too much or is this normal?

Saturday, March 14th, 2009 AT 3:00 PM

3 Replies

MERLIN2021

MECHANIC
17,250 POSTS

80 psi isnt bad. If it gets too high the relief valve opens, or you blow the oil filter apart.

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Saturday, March 14th, 2009 AT 3:03 PM

BANSHEEMAN730

MEMBER
3 POSTS

How much would you think is too much?

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Saturday, March 14th, 2009 AT 3:09 PM

MERLIN2021

MECHANIC
17,250 POSTS

Well if it goes much above 80 without the relief valve opening, its gonna blow! But it seems at 60 psi at idle with a warm engine, you have a real tight engine there! As it wear or should I say breaks in, it should drop a few pounds too. The spec on a 302 5.0 is 40-60 at 2000 rpm at normal temp, so you are in the park!

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Saturday, March 14th, 2009 AT 3:53 PM