BOSTONSTANGS.COM

Members Login
Username 
 
Password 
    Remember Me  
http://bostonstangs.com/ -> BOSTONSTANGS.COM -> 5.0/5.8 Engine Tech -> oil PSI
Post Info TOPIC: oil PSI
flamingpony83


Status: Offline
Posts: 2671
Date:
oil PSI
Permalink  

i put in over the summer a freshly rebuilt motor, brand new everything but crank and block. car runs great then my stock guage kept dropping at idle sumtimes so i thought i was the guage, then i installed a bunch of autometer guages and it drops to 10ish psi sometimes at idle....this cant be good right??? when im driving the psi is at 50ish. any ideas???

__________________
LX546


Status: Offline
Posts: 608
Date:
Permalink  

sounds like you have too much bearing clearance. Also what oil are you using?

__________________
1986 LX
1995 GT
1984 LX
1998 GT
KarlsECS@cox.net
flamingpony83


Status: Offline
Posts: 2671
Date:
Permalink  

quakerstate highhorsepower full syn 10-30

__________________
LX546


Status: Offline
Posts: 608
Date:
Permalink  

In a high performance engine you should run Valvoline VR1 Racing Motor Oil. I run straight 40W. Also you should use Fram HP1.

http://www.valvoline.com/pages/products/product_detail.asp?product=50

http://www.fram.com/products/oilFilters.php

__________________
1986 LX
1995 GT
1984 LX
1998 GT
KarlsECS@cox.net
LX546


Status: Offline
Posts: 608
Date:
Permalink  

Valvoline as anti-foam system helps protect the engine even during extreme stress. Quaker State doesn't have that.

__________________
1986 LX
1995 GT
1984 LX
1998 GT
KarlsECS@cox.net
flamingpony83


Status: Offline
Posts: 2671
Date:
Permalink  

i will have to try that...thanx

__________________
mikefheath87


Status: Offline
Posts: 2695
Date:
Permalink  

20-50 until it comes apart

__________________
snakebite


Status: Offline
Posts: 2503
Date:
Permalink  

general rule of thumb 10 psi oil pressure per rpm 1,000=10 5,000 =50
i am not saying that's factory specs just an general estimate for a v8

__________________
1993 cobra #2354 ( 1 of 362) ...04 lariat f350 crew cab diesal dually full 09 conversion...79 bronco 6.0 diesel conversion..more to come
flamingpony83


Status: Offline
Posts: 2671
Date:
Permalink  

snakebite wrote:

general rule of thumb 10 psi oil pressure per rpm 1,000=10 5,000 =50
i am not saying that's factory specs just an general estimate for a v8



???? really??? 10psi seems scary low.

__________________
LX546


Status: Offline
Posts: 608
Date:
Permalink  

At idle you should have between 25 -30

__________________
1986 LX
1995 GT
1984 LX
1998 GT
KarlsECS@cox.net
93 LX FiveO


Status: Offline
Posts: 874
Date:
Permalink  

replace 2 qt's with oil lucas stabilizer next oil change

stuff is thicker than glue, will help fill in clearances in the bottom end

__________________
qwik88


Status: Offline
Posts: 1854
Date:
Permalink  

snakebite wrote:

general rule of thumb 10 psi oil pressure per rpm 1,000=10 5,000 =50
i am not saying that's factory specs just an general estimate for a v8




10 psi per 1000 rpm is perfect thats all you need
your motor was proble built a little loose but a loose motor makes power
i run my chevy with 10 psi at idle every day no worries things the best motor ive ever had
and you have a ford it doesnt need much oil pressure

__________________
bonzcnc


Status: Offline
Posts: 1700
Date:
Permalink  

Straight 40 weight or even 50. 10psi at IDLE is acceptable. Oh, and by the way-FUCK SYNTHETIC!!

__________________
93fox


Status: Offline
Posts: 517
Date:
Permalink  

when my car is warmed up it idles at 20psi then around 40-50 when driving

__________________
93' lx 331 t70 11.71@122 Got Booooosst? 98' volvo turbo 18psi 225hp
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
http://bostonstangs.com/ -> BOSTONSTANGS.COM -> 5.0/5.8 Engine Tech -> oil PSI
Tweet this page Post to Digg Post to Del.icio.us


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard