Okay I've got an oil pressure test kit hooked up and I'm trying to find out what the oil pressure should be once warmed up at idle. I have the SVT Cobra engine in my car all forged internals. Right now it's showing 14-15 psi warmed up.
Senior Member
Okay I've got an oil pressure test kit hooked up and I'm trying to find out what the oil pressure should be once warmed up at idle. I have the SVT Cobra engine in my car all forged internals. Right now it's showing 14-15 psi warmed up.
#2,187 out of 3,214
Around 25PSI is where mine sits.
'04 Silver Marauder w/ sunroof - HID lighting, JL Audio / Eclipse DVD/NAV/iPod/camera, 4.10's, 2" drop, Progard Bumper Baffle, Delete tips, Billet Pedals, BC4E dead pedal, Lidio Tune, Mach1 chin spoiler, K&N CAI, TCE lines, Super40's, tinted tails, SS Inserts, Heinous Control Arms, Real oil gauge, lighted door handles. Currently installing Eaton M112.
2004 Mercury Marauder
Born March 2004, adopted October 2005. Sold January 2012, adopted AGAIN January 2016
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So 13 to 14 PSI is on the low side then right? The reason I got it low pressure test kit is because the aftermarket auto oil gauge when the car is warmed up always reads 0 and I asked the guy i bought the car from. Anout it he said it's done that since the engine was installed. He said that was around 70,000 miles ago, or so. Now once you start driving and getting to RPM little raised up to round 20 and 30. Now with the oil test kit it showed 14 to 15 warmed up at idle and at 2000 RPM around 40 PSI
Senior Member
Anyone else with built engine have any info give?
STILL N/A
My engine when started up cold would read close to 75 psi at high idle. Once it was warmed up at normal idle it would read 10 - 15 psi. I thought that was kind of low, but as soon as you revved it up above idle...it would show plenty of pressure.
There is almost no load on the engine at idle. You want plenty of oil pressure as the revs build.
2020 Ford Ranger STX DFI Turbo 2.3L 10 speed Auto
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1985 Mustang GT 5.0 Hatchback 4bbl 5 speed manual (525 HP 363 Dart block/AFR heads with Magnum 6 speed in the works)
1984 Mustang GT 2.3 Turbo Convertible FI. 5 speed manual
1966 427 Cobra (ERA) 468 all Aluminum FE 2x4bbl 5 speed manual
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Extrude honed intake w/PHP spacer.
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SVO Rearend Girdle, Redline Gear lube; OEM 3.55s
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Senior Member
It seems low under all circumstances. There are factors though, which oil pump, high volume or not, viscosity, how fresh and grade, thermostat 170 or 180 when up to temp. But 60/80 when driving 30/40 at idle.
Senior Member
My oil pressure stays right around 14 15 PSI totally warmed up at idle and give it throttle it stays steady and climbs so it looks like it's doing its job. At 3000 RPMs it says 65 PSI warmed up.Originally Posted by Joe Walsh
Last edited by Themarauderguy; 04-19-2018 at 07:13 PM. Reason: Spell check
Turbo Marauder
Anything above 7psi is fine
Senior Member
Mine is around 12 -15 at idle almost 80 when cold 40 - 60 at revs when warm
Steven
2004 Marauder Black, loaded
Vortec S/C
4.10s
3500 PI Stall
Kook's headers
476.9 rwhp 385 lbs/tq
KVR's, QA1's, M&Z control arms, rear sway bar
Lidio tune
2004 Suburban Dark Charcoal
1970 W-30 442 convertible twilight Blue
Senior Member
A good rule of thumb is 10 psi per 1000 rpm. Idle oil pressure sounds okay to me.
2004 SB #2150 of 3214 Moonroof, Heated Seats and 6 CD Changer. Non OEM Mufflers and 32,XXX miles and counting.
Senior Member
Is you oil filter in the normal place or is it remote??
I had a remote setup and lost about 10 PSI due to the length of lines!!
No Marauder
Everything Marauder, LEDs & HI
Stock engined MM w/ 90+k miles.
Cold over 100PSI
Warm at idle 20PSI
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Okay thanks very much for the info Zack I feel safe now appreciate all the info. Thanks the rest you guys for the info as well
Delaware Marauderer
What he said......
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formerly owned by "Impala Slayer!! 2004 SB MM
Kenne Belle 2.8 (Liquid Cooled), MMR "Boss 302" Block, L&M Engines rebuild Kooks Headers and cats, Accusump Pre-Oiler Dynamax VT mufflers, MBS 2 1/2" exhaust, 4.10's, 2800 stall, Argento 312 "Color" Powder coated wheels, Rears widened 1 1/2 "703
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I recommend you check your gauge against a known source like a tire pressure gauge or the gauge on your air compressor. I've seen more than a few oil pressure gauges that weren't even close; especially service gauges.
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