Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
New showcase items
New showcase comments
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Showcase
New items
New comments
Latest content
Latest reviews
Latest updates
Search showcase
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Power Strokes
7.3 Aftermarket
Big(ish) Hybrids and dropping oil pressure
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
[QUOTE="DZL JIM, post: 1487987, member: 153"] I'd like to hear from anyone running 300, 350, 400 cc size hybrids, turning over 4k rpms, and what your low pressure oil pressure is. I have an issue that I am trying to figure out and I think it's the HPOP. At the end of a 1/4 mile run the low pressure oil drops below 10 psi for several seconds and the engine runs real rough, and often dies and is hard to figure back up. Some info: I have 300/200% Hybrids and I am turning 4400 rpm though the lights. I have a large single HPOP (nameless right now as I am not 100% sure what's going on.) The datalog shows 3800 psi of HPOil pressure during the whole run. Low pressure oil shows starting at 65 psi or so when I leave the line and drops a few seconds after launch to about 35 psi, and stays steady unit it then drops suddenly after I let of the throttle at the end of the run. It recovers by the time I am at the end of the shut down and enter the return road, where the engine runs very rough, if at all. I was thinking I had a low pressure issue, but believe I am now experiencing other High Pressure Pump issues that I am suspecting have been my problem all along. I am thinking the HPOP is drawing the low pressure system down, somehow. The pump is still turning 4400 rpm (or whatever the ratio is) when I let off so it's still moving a LOT of oil that has to go somewhere. Anybody else experience anything like this? [/QUOTE]
Insert quotes…
Verification
Post reply
Random media
Latest posts
If you've had a 6.4 crack pistons please read
Latest: ncollins64
Monday at 7:08 PM
6.4 Tech
20% TO 40% OFF ON FORD OEM PARTS
Latest: HeavyAssault
Sunday at 3:43 PM
Sunrise Ford Parts
B
No Start help
Latest: bismic
Sunday at 9:58 AM
6.0 Tech
New torque converter locking up in Reverse and 1st gear
Latest: 6.0 Tech
Saturday at 11:12 PM
6.4 Tech
0
Dana 80 cab and chassis rear end
Latest: 03f3507.3
Friday at 2:11 PM
Engine and Drivetrain
Members online
No members online now.
Forums
Power Strokes
7.3 Aftermarket
Big(ish) Hybrids and dropping oil pressure
Top