 Oil PSI?
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Joined: Apr 2008
Posts: 3,937
Loquacious
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OP
Loquacious
Joined: Apr 2008
Posts: 3,937 |
How much oil pressure (PSI) are you guys with guages finding on the 790 motor?
I'm trying to decide if I want a guage that reads 0-15 PSI, or 0-90 PSI.
And you may see me tonight
With an illegal smile
J. Prine
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Re: Oil PSI?
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
I don't have a 790 or for that matter an OPG, however get one that reads at least 80 PSI. Most of the time when underway it should be above 40 PSI.
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Re: Oil PSI?
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Joined: Feb 2007
Posts: 23,186 Likes: 55
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,186 Likes: 55 |
I run 40psi at idle when cold and about 25 or so hot and about 80psi at full pressure.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Oil PSI?
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Joined: Mar 2005
Posts: 2,419
Oil Expert
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Oil Expert
Joined: Mar 2005
Posts: 2,419 |
Quote:
I run 40psi at idle when cold and about 25 or so hot and about 80psi at full pressure.
Same figures and mine is 865 EFI.
Cheers, Richard
~~~~~~~~~~~~
09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
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Re: Oil PSI?
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Joined: Apr 2008
Posts: 3,937
Loquacious
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OP
Loquacious
Joined: Apr 2008
Posts: 3,937 |
Thanks.
As with most things, it's usually best if standard operations are generally in the middle of the reading range.
As with torque ratchets.
Thanks again.
And you may see me tonight
With an illegal smile
J. Prine
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 Re: Oil PSI?
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Joined: Jan 2005
Posts: 2,240
Oil Expert
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Oil Expert
Joined: Jan 2005
Posts: 2,240 |
On my '04, with nearly 106K hard miles on her (nearly all at 80 mph, with a 16t front counter sprocket), I'm not getting any oil pressure reading on the gauge at idle, and the Oil Pressure light may flicker brightly unless I keep idle above 1500 rpm (however accurate that stock tach is). Running hard down the freeway at speed, closer to 40 psi. I think it's getting time for a new oil pump. 
Keith
Houston
Ridin'Texas
'04 Speedmaster
AI removed, Pingle, UNI Filter, 1 shim, straight-through slash-cut TORs, Stage 1 DynaJet, 140 mains, 3 turns, 16/42 final drive, 115K
2020 T120 Black
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Re: Oil PSI?
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Joined: Feb 2007
Posts: 23,186 Likes: 55
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,186 Likes: 55 |
I run 80PSI when running down the road and 40 at idle cold, that drops to about 25psi at idle once warm.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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