 
Main Menu
|
|
Nevada Classics
|
|
Advertise at CC
|
| S |
M |
T |
W |
T |
F |
S |
| |
|
|
|
1 |
2 |
3 |
| 4 |
5 |
6 |
7 |
8 |
9 |
10 |
| 11 |
12 |
13 |
14 |
15 |
16 |
17 |
| 18 |
19 |
20 |
21 |
22 |
23 |
24 |
| 25 |
26 |
27 |
28 |
29 |
30 |
31 |
|
|
CC Advertisers
|
|
 15Likes
11-19-2019, 07:51 AM
|
|
CC Member
|
|
|
Join Date: Nov 2012
Location: Rome,
ME
Cobra Make, Engine: ERA 744/428/TKO 600
Posts: 291
|
|
Not Ranked
10 psi at idle seems very low.
Quote:
Originally Posted by cycleguy55
The weight / viscosity of your oil s/b based upon the clearances in the engine, as indicated by pressures you're seeing. Standard guidance for many has been 10 PSI per 1,000 RPM at operating temperature, so 60 PSI @ 6,000 RPM. Running heavier / thicker oil than that not only requires more power to pump, but may also result in insufficient lubrication to tight clearances - particularly when cold (yes, even with multi-viscosity oils). |
|
11-19-2019, 08:47 AM
|
 |
Half-Ass Member
|
|
|
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
|
|
Not Ranked
Quote:
Originally Posted by sea2jet
10 psi at idle seems very low.
|
Actually, it's not -- depending on what your idle is, of course. Let's say you're idling down at 700 RPM with a hot idle at 10 psi in a brand spankin' new stroker FE, say a SCAT with the Chevy journals, and clearances approaching .003", and a nice HV oil pump. 10psi is nothing to even blink at, provided the pressure comes up right off idle. The original 427FE didn't even flicker the light until 6psi - and the service bulletin's recommendation for when that happened was to just raise the customer's idle a bit. The need for a higher psi at hot idle is all in your head.  |
11-19-2019, 05:19 PM
|
 |
CC Member
|
|
|
Join Date: Sep 2001
Location: Danville,
CA
Cobra Make, Engine: CSX 6079 482CI CSX cross ram
Posts: 1,354
|
|
Not Ranked
Quote:
Originally Posted by patrickt
Actually, it's not -- depending on what your idle is, of course. Let's say you're idling down at 700 RPM with a hot idle at 10 psi in a brand spankin' new stroker FE, say a SCAT with the Chevy journals, and clearances approaching .003", and a nice HV oil pump. 10psi is nothing to even blink at, provided the pressure comes up right off idle. The original 427FE didn't even flicker the light until 6psi - and the service bulletin's recommendation for when that happened was to just raise the customer's idle a bit. The need for a higher psi at hot idle is all in your head. |
I have to agree with Patric here, My FE in my ERA car (454) ran at 10psi all day long at hot idle, as soon as I touched the peddle it jumped up...it has been this way for may years, no issues |
11-19-2019, 09:13 AM
|
|
Half-Ass Member
|
|
|
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
|
|
Not Ranked
And speaking of Chevrolet, what do you think the installation guide from Chevrolet lists as the minimum oil pressure at idle (1000 RPM) for a nice, new 454 HO crate engine? Answer: 6 psi. 
https://www.chevrolet.com/content/da...e-12568774.pdf |
11-19-2019, 04:01 PM
|
 |
CC Member
|
|
|
Join Date: Feb 2014
Location: White City,
SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,916
|
|
Not Ranked
Quote:
Originally Posted by patrickt
|
I also note the recommendation for 5W30 non- synthetic. No mention of ZDDP as that's a roller cam engine.
__________________
Brian
|
| Thread Tools |
|
|
| Display Modes |
Rate This Thread |
 Hybrid Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 07:58 AM.
Links monetized by VigLink
|
