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03-26-2023
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#11 | |
  
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: Royal Purple oil filters
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I guess it depends .......I am not so sure Marc made a filter recommendation on that bases of retained oil weight compared to dry filter weight + retained oil weight other than stating the facts of that one type of test  In 2005 Marc suggests "The Mobil 1, M1-207 is also a good choice. The anti drain back valve seals normally." Marc Haibeck suggests in 2005 But hold on a bit......The LT5 is one of the few engines that has an upside down oil filter and on a "normal" engine the filter will not drain back at all Letting the LT5 sit over night and then removing the oil filter with no spilled oil is a very, very nice feature on the LT5. Thinking about it.....how much oil is drained back in other parts of the engine after sitting?? ......and further thinking about it......I often leave the LT5 sit for a few days between drives or even months (The retained oil weight as a percentage of the dry filter weight + retained oil weight were based on an 8 hour drain period)  Thinking a bit more about it......when you put on a new oil filter it is usually empty....now what do you do You fire it right up or after sitting for a few days (or months) what do you do.......You fire it right up  A question for M1-207?? (Data 2005) The dry filter weight new is 17 0z Weight filter and oil after 8 hours sitting is 21 oz Retained oil is 4 oz I have to ask how many oz of oil does the M1-207 hold?? If you divide the retained oil weight by the total weight of the oil the filter holds.....then you have percent of retained oil.....I am thinking
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Left Clickable links  -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 03-27-2023 at 02:09 AM. |
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03-27-2023
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#12 | |
 
Join Date: Mar 2018
Location: Norway
Posts: 345
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Re: Royal Purple oil filters
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Agree on the fact these cars sits for periods between starts and all the oil sinks to the bottom of the engine anyhow. But, what would then be the reasoning behind the importance of good anti drainback as we all read everywhere? If the cars are only driven every now and then the filter will be empty every time. Using quality filtration makes sense anyhow but anti drainback gets all the attention. Oil wise most agree on the zinc content it seems. Maybe using one of those lifetime oil filters (System1 etc) with cartridges where one can see if particles occur would be just as good if not better..? Brainstorming sure is interesting [emoji4] Sent from my SM-G955F using ZR-1 Net Registry mobile app
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Roy Martin 1994 ZR-1 #112 Admiral Blue/Black Dana 4:10 Aluminum flywheel Corsa exhaust Watson headers Haibeck chip 470 HP/399 RWHP 1991 ZR-1 #400 White/Red (SOLD) Dana 4:10 Powder coated engine Haibeck performance chip Borla exhaust |
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04-01-2023
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#13 | |
 
Join Date: May 2010
Location: Japan
Posts: 3,582
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Re: Royal Purple oil filters
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048 
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04-01-2023
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#14 | |
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: Royal Purple oil filters
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Post 230 - 1995 (#0186) LT5 SPECIFIC TOP END REBUILD TRICKS |
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04-02-2023
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#15 | |
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Join Date: May 2010
Location: Japan
Posts: 3,582
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Re: Royal Purple oil filters
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048
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