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12-09-2017
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#51 |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: May be of interest to Mobil 1 users.
Funny.. here’s a link to a thread I posted on the subject back in 09’. It contains Hibs excellent article on the subject. It concludes that 800 ppm zddp is the minimum requirement for our engine. It also appears I was advocating Amsoil at the time...lol. (or any oil with 800ppm or more).
http://www.zr1.net/forum/showthread....mshaft+failure To me, at least, the bottom line is we should all use what we are comfortable with. To some that’s the extra protection of Amsoil, others Mobile 1 with or without an addative, I’m sure there are many other options. Ultimately there is no one answer. Good discussion though... H 
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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12-09-2017
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#52 |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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May be of interest to Mobil 1 users.
So if amsoil amo is 1400 zddp. I wonder if you could blend it with another oil to bring it down to 1000. This would help those with converters still on their car
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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12-09-2017
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#53 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: May be of interest to Mobil 1 users.
Quote:
I didn’t get the impression that Cliff’s link did much to indicate that lack of ZDDP was the cause of lobe wear. And didn’t Marc write that he went ahead and continued to use that cam w/o further issue? 
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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12-09-2017
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#54 | |
  
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: May be of interest to Mobil 1 users.
Quote:
 Camshaft and lifter failures are like Timing Chain failures......those failures are very very rare and the reasons for the failures are difficult to diagnose. The LT5 is very very reliable engine and easy to get 100,000 miles or even 200,000 miles on an engine. The Chain guides some times DO wear out and break but even that is rare. Often these failures may be lubrication related.
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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; 12-09-2017 at 01:48 PM. |
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12-09-2017
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#55 | |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: May be of interest to Mobil 1 users.
Quote:
Happy Holidays H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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12-09-2017
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#56 | |
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: May be of interest to Mobil 1 users.
Quote:
 Merry Christmas
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