Go Back  Offshoreonly.com > Technical > General Q & A
Oil pressure/Oil restrictors >

Oil pressure/Oil restrictors

Notices

Oil pressure/Oil restrictors

Thread Tools
 
Old 03-12-2017 | 01:49 PM
  #31  
Thread Starter
Registered
 
Joined: Oct 2007
Posts: 80
Likes: 0
From: woodstock NY
Default

Originally Posted by Baja Rooster
The stock filter head has a tiny passage inside of it. But it's super easy to just dremel it out to double its size.
Great thanks !! ill do that
89 warlock is offline  
Reply
Old 03-12-2017 | 01:53 PM
  #32  
Thread Starter
Registered
 
Joined: Oct 2007
Posts: 80
Likes: 0
From: woodstock NY
Default

Originally Posted by AllDodge
Just info not trying to change the way you maintain your motor.

Wix 51060 flow rate 0f 9 to 11 GPM and filters at 21 microns
Wix 51060R flow rate of 28 GPM and filters at 61 microns

So the standard flow filter will filter a particle smaller then a human hair, the racing filter will let something that size pass.

I don't have high flow oil pumps in my car/trucks, but sounds like you do and may need the flow rate

[ATTACH=CONFIG]565511[/ATTACH]
Yes I do have high volume pumps in them , thanks for your input very interesting
89 warlock is offline  
Reply
Old 03-12-2017 | 06:36 PM
  #33  
Registered
 
Joined: Oct 2013
Posts: 487
Likes: 23
From: Salisbury N.C.
Default

If your fitting ID is 7/16 , your restricting the oil flow basically down to a - 7 . AN is sized by 16ths , 5/8 is 10/16 or AN -10. So your down between -6 & -8 through your
7/16 Fittings.
dunnitagain is offline  
Reply
Old 03-13-2017 | 06:16 AM
  #34  
articfriends's Avatar
Platinum Member
20 Year Member
Platinum Member
 
Joined: Jun 2004
Posts: 7,317
Likes: 1,037
From: frankenmuth michigan
Default

Originally Posted by SB
Or regulator stuck open on the pump...wouldn't be a first time.
I seen a bypass in pump stick open before, under 900 rpms pressure dropped to zero.
articfriends is offline  
Reply
Old 03-13-2017 | 06:20 AM
  #35  
articfriends's Avatar
Platinum Member
20 Year Member
Platinum Member
 
Joined: Jun 2004
Posts: 7,317
Likes: 1,037
From: frankenmuth michigan
Default

Originally Posted by AllDodge
Just info not trying to change the way you maintain your motor.

Wix 51060 flow rate 0f 9 to 11 GPM and filters at 21 microns
Wix 51060R flow rate of 28 GPM and filters at 61 microns

So the standard flow filter will filter a particle smaller then a human hair, the racing filter will let something that size pass.

I don't have high flow oil pumps in my car/trucks, but sounds like you do and may need the flow rate

[ATTACH=CONFIG]565511[/ATTACH]
Good info
articfriends is offline  
Reply
Old 03-13-2017 | 06:30 AM
  #36  
articfriends's Avatar
Platinum Member
20 Year Member
Platinum Member
 
Joined: Jun 2004
Posts: 7,317
Likes: 1,037
From: frankenmuth michigan
Default

Originally Posted by dunnitagain
If your fitting ID is 7/16 , your restricting the oil flow basically down to a - 7 . AN is sized by 16ths , 5/8 is 10/16 or AN -10. So your down between -6 & -8 through your
7/16 Fittings.
Definately less than ideal at 7/16 id but if he really has .002 rods and mains the flow requirements to maintain static pressure wont be as high, i could also see it possibly being a restriction cold but hot I'd be looking harder.
Stock filter head with restrictive passages, they suck. Dont be afraid to take any steel adapters in your oil system that look restrictive and carefully port them if hard to find larger replacements. Ive seen hyd hose fittings on oil systems, terribly restrictive, not running 5000 psi so doesn't need as much beef! I also think if your engine builder didn't put in 30lb bypass and it was opening oil temp would be sky high
articfriends is offline  
Reply
Old 03-13-2017 | 09:34 AM
  #37  
Registered
 
Joined: Nov 2005
Posts: 4,554
Likes: 3
From: Fredericksburg, Va
Default

bottom line is the merc filter mount belongs in the round file for anything other than a stock setup..
ezstriper is offline  
Reply
Old 03-13-2017 | 12:05 PM
  #38  
Registered
15 Year Member
 
Joined: Oct 2007
Posts: 8,439
Likes: 94
From: yorkville,il
Default

Originally Posted by AllDodge
Just info not trying to change the way you maintain your motor.

Wix 51060 flow rate 0f 9 to 11 GPM and filters at 21 microns
Wix 51060R flow rate of 28 GPM and filters at 61 microns

So the standard flow filter will filter a particle smaller then a human hair, the racing filter will let something that size pass.

I don't have high flow oil pumps in my car/trucks, but sounds like you do and may need the flow rate

[ATTACH=CONFIG]565511[/ATTACH]
their is no getting around the fact that the smaller micron filter restricts flow,do i need a filter that restricts to 21 micron in my boat engine that get,s a new filter& oil change at 10 to 12 hours?NO.not with 20w50 motor oil.do i want 21 micron filtration in my daily driver that uses 5w30 and get,s changed every 5000 miles,YES.jmo.
mike tkach is offline  
Reply
Old 03-25-2017 | 12:06 PM
  #39  
Thread Starter
Registered
 
Joined: Oct 2007
Posts: 80
Likes: 0
From: woodstock NY
Default

Originally Posted by articfriends
Definately less than ideal at 7/16 id but if he really has .002 rods and mains the flow requirements to maintain static pressure wont be as high, i could also see it possibly being a restriction cold but hot I'd be looking harder.
Stock filter head with restrictive passages, they suck. Dont be afraid to take any steel adapters in your oil system that look restrictive and carefully port them if hard to find larger replacements. Ive seen hyd hose fittings on oil systems, terribly restrictive, not running 5000 psi so doesn't need as much beef! I also think if your engine builder didn't put in 30lb bypass and it was opening oil temp would be sky high
Hi I really appreciate your input you seam to be the guy with a lot of knowledge with oil pressure issues, I've read your articles and they are very informative. Is it possible for me to call you and bother you for a 5-10 minutes of your time I would really appreciate it thanks
Ritchie
89 warlock is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.