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do mopars just get low oil psi or is it just mine? #671459 04/16/10 12:51 PM 04/16/10 12:51 PM
Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan coronet1966d OP master
coronet1966d OP master Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan	the 360 i pulled out would idle at about 12psi hot with 20w50 now my fresh 440 with a high volume pump gets about 8psi hot idle with brad penn 10w30 the engine is all new and assembled by a machine shop, clevite bearings melling high volume pump ect. on cold startup its at about 75psi. then it gradually drops as it warms up. the oil pressure is responsive as it should be to engine RPM. when hot it goes up to 50psi at most any ideas?

Re: do mopars just get low oil psi or is it just mine? [Re: coronet1966d] #671460 04/16/10 01:04 PM 04/16/10 01:04 PM
Joined: Jan 2003 Posts: 33,181 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 33,181 Grand Prairie,Texas	What oil gauge, what temp and what idle speed?

Re: do mopars just get low oil psi or is it just mine? [Re: coronet1966d] #671461 04/16/10 01:07 PM 04/16/10 01:07 PM
Joined: Jul 2007 Posts: 1,688 Philadelphia R radar top fuel
radar top fuel R Joined: Jul 2007 Posts: 1,688 Philadelphia	My fresh build (small block) had a high volume pump. I seized it with a small piece of trash that got sucked in. I replaced it with a melling standard flow. My gauge still reads 10-15 at idle (900 rpm) and stays at or above 10psi per 1000rpm. Gotta be loose bearing clearances? I also run the purple 10w30 synthetic.

Re: do mopars just get low oil psi or is it just mine? [Re: radar] #671462 04/16/10 01:17 PM 04/16/10 01:17 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	I have nothing that has that low of pressure even with many thousands of miles on them.

Re: do mopars just get low oil psi or is it just mine? [Re: MoparforLife] #671463 04/16/10 01:21 PM 04/16/10 01:21 PM
Joined: Jan 2003 Posts: 21,129 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,129 Niles , Ohio	My old 318 had 280K and at idle hot had like 10 psi.Ran for 4 years till I sold it and was running good after at least 3 more years that I know of.My 440 hi press hi vol pump has 80 cold and never drops below 65.My kis 62 413 carries 60 cold and minimum 45 hot.Rocky Chrysler Firepower

Re: do mopars just get low oil psi or is it just mine? [Re: stumpy] #671464 04/16/10 02:32 PM 04/16/10 02:32 PM
Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan coronet1966d OP master
coronet1966d OP master Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan	Quote: What oil gauge, what temp and what idle speed? its an autometer short sweep electric 0-100psi temp at idle is about 150 but it gets as high as 180 idle speed is about 1000

Re: do mopars just get low oil psi or is it just mine? [Re: radar] #671465 04/16/10 02:36 PM 04/16/10 02:36 PM
Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan coronet1966d OP master
coronet1966d OP master Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan	Quote: My fresh build (small block) had a high volume pump. I seized it with a small piece of trash that got sucked in. I replaced it with a melling standard flow. My gauge still reads 10-15 at idle (900 rpm) and stays at or above 10psi per 1000rpm. Gotta be loose bearing clearances? I also run the purple 10w30 synthetic. yours sounds exactly like mine. (minus the seized oil pump part) this is a tight fresh engine with no more than 40 miles on it. a machineist did the lower end i assembled the rest

Re: do mopars just get low oil psi or is it just mine? [Re: coronet1966d] #671466 04/16/10 02:40 PM 04/16/10 02:40 PM
Joined: Jul 2008 Posts: 30,632 Florida STAYcation IcorkSOAK Financed his waterbed
IcorkSOAK Financed his waterbed Joined: Jul 2008 Posts: 30,632 Florida STAYcation	Corny ... it sound like you have a L O S S E L Y clearanced motor.

Re: do mopars just get low oil psi or is it just mine? [Re: coronet1966d] #671467 04/16/10 03:09 PM 04/16/10 03:09 PM
Joined: Nov 2004 Posts: 1,708 S. Il. U.S.A. 5spdcuda top fuel
5spdcuda top fuel Joined: Nov 2004 Posts: 1,708 S. Il. U.S.A.	Clearances are probably on the loose side. Also high volume isn't the same as high pressure. I use a high pressure spring in any modified engine. With 20-50 weight oil my cold pressure is 75-80 psi. Hot idle is 40 psi, 30 psi if it's been run hard. Hot pressure at 2000 rpm is 60-65 psi. Pressure is 5 psi lower when using thinner oils. Most stock Mopars run 45-50 psi at 2000 rpm hot and anything from 15-30 psi at hot idle.

Re: do mopars just get low oil psi or is it just mine? [Re: 5spdcuda] #671468 04/16/10 03:17 PM 04/16/10 03:17 PM
Joined: Mar 2004 Posts: 3,287 Dalton, MA Slipknot440 master
Slipknot440 master Joined: Mar 2004 Posts: 3,287 Dalton, MA	my hemi idles at 900 rmps and 60psi in park, 15-20 psi in drive on the brake and drives around 50 at 1500-3000 rpms

Re: do mopars just get low oil psi or is it just mine? [Re: Slipknot440] #671469 04/16/10 03:55 PM 04/16/10 03:55 PM
Joined: Jan 2003 Posts: 33,181 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 33,181 Grand Prairie,Texas	You need to get that engine temp up to a least 190* for the engine to be at it's best.

Re: do mopars just get low oil psi or is it just mine? [Re: coronet1966d] #671470 04/16/10 04:05 PM 04/16/10 04:05 PM
Joined: Dec 2008 Posts: 2,782 USA J JoesMopar master
JoesMopar master J Joined: Dec 2008 Posts: 2,782 USA	My: 440 in '69 Charger - 70psi @ cold idle, 50psi warm idle and cruising... GTX 20W-50 318 in '89 Diplomat - 55psi @ cold idle, 50psi crusing warmed up, 25 psi warm idle... Napa 10W-30 318 in '68 Satellite - 70psi @ cold idle, 60 psi crusing and warm idle... Napa 10W-30

Re: do mopars just get low oil psi or is it just mine? [Re: coronet1966d] #671471 04/16/10 04:05 PM 04/16/10 04:05 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: now my fresh 440 with a high volume pump gets about 8psi hot idle with brad penn 10w30. the oil pressure is responsive as it should be to engine RPM. any ideas? go w the next thicker grade. Actually if it jumps up immediately when you gun it you are Ok though 8 is getting close to the ragged edge. I'd think loose clearances also, somewhere live every 24 hour block of time like it's your last day on earth

Re: do mopars just get low oil psi or is it just mine? [Re: RapidRobert] #671472 04/16/10 04:12 PM 04/16/10 04:12 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: Quote: now my fresh 440 with a high volume pump gets about 8psi hot idle with brad penn 10w30. the oil pressure is responsive as it should be to engine RPM. any ideas? go w the next thicker grade. Actually if it jumps up immediately when you gun it you are Ok though 8 is getting close to the ragged edge. I'd think loose clearances also, somewhere I have a 1981 International truck with a 345 ci gas engine in it. When it idles it has 1-2 lbs oil pressure when hot. when you gas it it jumps up. Been that way since I bought the truck 15 years ago. It's a old utility truck with a crane mounted on it. I suspect it idled all day long when it was in service for the utility company. Anyway it won't die, it just keeps on running sometimes for hours at a time for us with the dash gauge showing 0. Anyway to the OP, That sounds too low for a new engine. I'm thinking some bearings got wiped during start up? Sorry not good. Might want to cut a oil filter apart to rule out what I'm saying. Last edited by Challenger 1; 04/16/10 04:20 PM.

Re: do mopars just get low oil psi or is it just mine? [Re: IcorkSOAK] #671473 04/16/10 04:42 PM 04/16/10 04:42 PM
Joined: Jan 2005 Posts: 2,179 S.E. Conn Hoof Hearted top fuel
Hoof Hearted top fuel Joined: Jan 2005 Posts: 2,179 S.E. Conn	Quote: Corny ... it sound like you have a L O S S E L Y clearanced motor. I'm guessing he meant L O O S E L Y but I agree. 2005 300C Hemi 2014 Ram ProMaster 2500 I Rekey, Repin old Chrysler locks and cut keys by code

Re: do mopars just get low oil psi or is it just mine? [Re: 5spdcuda] #671474 04/16/10 04:46 PM 04/16/10 04:46 PM
Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan coronet1966d OP master
coronet1966d OP master Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan	Quote: Clearances are probably on the loose side. Also high volume isn't the same as high pressure. I use a high pressure spring in any modified engine. With 20-50 weight oil my cold pressure is 75-80 psi. Hot idle is 40 psi, 30 psi if it's been run hard. Hot pressure at 2000 rpm is 60-65 psi. Pressure is 5 psi lower when using thinner oils. Most stock Mopars run 45-50 psi at 2000 rpm hot and anything from 15-30 psi at hot idle. where can i get a high pressure spring?

Re: do mopars just get low oil psi or is it just mine? [Re: coronet1966d] #671475 04/16/10 04:53 PM 04/16/10 04:53 PM
Joined: Nov 2004 Posts: 1,708 S. Il. U.S.A. 5spdcuda top fuel
5spdcuda top fuel Joined: Nov 2004 Posts: 1,708 S. Il. U.S.A.	M P has them so any Chrysler dealer or M P dealer such as Mancini, Hensley, Muscle Motors etc. Costs about $5.00.

Re: do mopars just get low oil psi or is it just mine? [Re: 5spdcuda] #671476 04/16/10 04:58 PM 04/16/10 04:58 PM
Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan coronet1966d OP master
coronet1966d OP master Joined: Aug 2003 Posts: 2,682 Clinton Twp. Michigan	i guess ill try that before heading over to the machineists house with torches

Re: do mopars just get low oil psi or is it just mine? [Re: Hoof Hearted] #671477 04/16/10 08:03 PM 04/16/10 08:03 PM
Joined: Jul 2008 Posts: 30,632 Florida STAYcation IcorkSOAK Financed his waterbed
IcorkSOAK Financed his waterbed Joined: Jul 2008 Posts: 30,632 Florida STAYcation	Quote: Quote: Corny ... it sound like you have a L O S S E L Y clearanced motor. I'm guessing he meant L O O S E L Y but I agree. Oooooops ! ...and me thimks your machinist needs to go back to FIRST GRADE !

Re: do mopars just get low oil psi or is it just mine? [Re: IcorkSOAK] #671478 04/16/10 08:19 PM 04/16/10 08:19 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	I beg to differ here electric guages just show its working some and IMO are not a reliable as a mech guage I had the same thing till I went back to the mech autometer gauge i say put a mech on and check it first before working on something thats not broke my sb 318 holds 25 hot idle in gear at 850rpms 75 at 2500rpms almost 250,000 miles on it my BB used engine 75,000 miles was low pessure on elect gauge and flickerd the stock oil light in the dash swaped to the mech gauge now its up around 70 hot and 30 at hot idle sender was going bad maybe,it would be at 30lbs on mech gauge and flicking the oil light on the elect gauge compairing the 2 at the same time cant believe all you have in that 440 and its on the loose side did you do any oil mods? full groove bearings? did you get your seal fixed? how was the lifter bores?? in spec on the bore size? IMO,I would double check with mech gauge first move to see if the gauge is correct result will vary by gauge,IMHO Last edited by scratchnfotraction; 04/16/10 08:21 PM.

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