Oil pressure/Oil restrictors
03-11-2017 | 09:47 PM
#21
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From: woodstock NY
03-11-2017 | 09:58 PM
#22
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From: yorkville,il
Re did the motor about five years ago it was a ZZ502 block and we stroked it and made it a 540 even with a ZZ502 block the oil pressure was kind of the same situation I have now.the pick tube cracked last year and we put a new oil pump in it milodon 18760 and pick up tube and canton oil pan and block adapter. It had a meling hv pump in it before. Changed the oil lines to 5/8 id and the connectors are 7/16 id . The housing where the filter mounts is a stock merc unit. The clearances on the mains and rods are .002 . When we made it a 540 I also put a 30lb bypass valve in it
03-12-2017 | 08:55 AM
#24
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From: Fredericksburg, Va
change the oil filter adapter to a moroso or canton and try a wix(napa gold) filter, I lost 15psi by switching filters once, scared the hell out of me...but the stock merc adapters I've seen are very restrictive..
03-12-2017 | 11:03 AM
#25
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From: woodstock NY
Lucas racing 20/50, I run it in all my old muscle cars also because it has a high zinc content, when I pulled it apart when the pickup tube cracked the mains looked great and the rods had a little wear on them so I replaced them but they really weren't bad at all
03-12-2017 | 11:08 AM
#26
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From: woodstock NY
I changed the adapter on the block to a canton , but not the one the filter screws onto , only filter I use is wix racing, been using them for years on the boat and my old muscle cars
03-12-2017 | 12:06 PM
#28
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From: woodstock NY
Two of my cars I raced at the dragstrip and drive on the street I've always used those filters and never had an issue I got 500 passes on my GTX and I still haven't pulled it apart maybe this summer just to replace the bearings and hone and re ring it. Oil pressure is as good as when I first put it together 17 years ago
03-12-2017 | 12:26 PM
#29
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From: SF Bay Area
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.
03-12-2017 | 12:48 PM
#30
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From: KY
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]
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]
