How Much Oil Pressure?? - Ford Mustang Forum
 
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post #1 of 4 (permalink) Old 04-07-2016 Thread Starter
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How Much Oil Pressure??

How much does the Coyote engine produce??
I read that the variable cam timing gismo uses engine oil pressure to work and just wondered if it was in line with other "Mod Motors"??

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post #2 of 4 (permalink) Old 04-07-2016
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~40-80 psi. Some have reported at high as 100.

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post #3 of 4 (permalink) Old 04-07-2016
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Pressure readings are from an Autometer electric gauge. At the time I installed the gauge I also tried an old mechanical gauge I had lying around and the readings were the same. This is with 5w30 Mobil 1 full syn. cold idle=100 psi. Hot idle = 26 psi. Hot 2,000-2,200 rpm [typical interstate rpm ] = 80 psi. hot 4,000 rpm and up = 100 psi. These engines have a pretty wide range of pressures which I think is due to the combination of the relatively thin oils used in modern engines and the fact that the oil pump is driven directly off the crank so oil pump rpm is equal to engine rpm. Older engine designs drove the oil pump off the cam drive which was 1/2 engine speed.
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post #4 of 4 (permalink) Old 04-08-2016 Thread Starter
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Quote:
Originally Posted by XRacer View Post
Pressure readings are from an Autometer electric gauge. At the time I installed the gauge I also tried an old mechanical gauge I had lying around and the readings were the same. This is with 5w30 Mobil 1 full syn. cold idle=100 psi. Hot idle = 26 psi. Hot 2,000-2,200 rpm [typical interstate rpm ] = 80 psi. hot 4,000 rpm and up = 100 psi. These engines have a pretty wide range of pressures which I think is due to the combination of the relatively thin oils used in modern engines and the fact that the oil pump is driven directly off the crank so oil pump rpm is equal to engine rpm. Older engine designs drove the oil pump off the cam drive which was 1/2 engine speed.
That is similar to my 4.6 DOHC motor in my '04 Marauder!!

Thanks guys!!
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