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#21 |
![]() Join Date: Apr 2007
Location: Northern VA
Posts: 2,655
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
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#22 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Fortunately, the ring pieces all stayed within the ring groove. No damage was done to the cylinder bore. U can still see the xhatch pattern on the Nikasil.
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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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#23 |
![]() ![]() Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,794
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I was skeered to ask how the Sleeve looked and if all the pieces stayed on the piston
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#24 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Latest Update. Cylinder heads are on w cam covers now bolted in and cams timed. So motor is about ready to get dropped back into engine bay. Attached are pics of busted motor mount on drivers side. I suspect its been either like this or in some degree of damage for sometime. My driver's side exhaust would twist and I have had now 2 mufflers w metal fatigue in the area of the hanger.
Hopefully, this will remedy the situation. Briefly what appears to have happened is that metal retainer which limits the amount of movement of the mount, basically spread out and so no longer limited the travel of thentop of the mount. And due to that, the mount essentially was ripped in half and failed along a horizontal line around the circumference of the mount. BTW, the replacement is the same part# as the LT1/LT4 mount.
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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 Last edited by XfireZ51; 03-08-2024 at 02:10 PM. |
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#25 |
Join Date: Jan 2017
Location: US
Posts: 233
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#26 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Dr. Greekenstein sent a pic of his latest implant. He also sent me comparison that shows the quality of his work. We have PRE and POST valve job leakdown numbers. This is part of Pete's "quality control". Significant improvement in 4 of the 8 cylinders.
B/A 1. 6-5% 3. 10-4 5. 8-4 7. 5-5* This is the cylinder w broken compression ring 2. 8-4% 4. 20-3 6. 12-4 8. 2-2
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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 Last edited by XfireZ51; 03-08-2024 at 02:10 PM. |
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#27 |
Join Date: Aug 2005
Location: Fishers, IN
Posts: 811
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Wth was wrong with cyl #4? That's a terrible before number?
Sent from my iPhone using ZR-1 Net Registry
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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#28 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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w the worse #s. Interestingly, the same can be said for the driver's side bank as well, albeit not to the extent of the passenger side. I would also say that these were heads I had purchased from a previous LT5 enthusiast. These heads were ported and massaged by GVD sometime in the late 90's or early 2000. So the porting job had been done on the basis that they knew about then rather than the current state of porting.
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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 Last edited by XfireZ51; 09-14-2017 at 10:29 PM. |
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#29 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Went to Dr. Greekenstein's lab this afternoon, and the motor etc was all buttoned up. Some minor details to attend to but powertrain and drivetrain is ready to go. So we started it up. I'll be checking the tune right away to see if any of the mods have shifted the fueling requirements.
Pretty certain there will be some changes but it should be a matter of tweaking to optimize. It sounds healthy. https://youtu.be/3HZhzi-uoSw
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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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#30 |
![]() Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Nice.. I'm jealous you have both Pete and Al so near by. It will have to be on the job training for me at some point.
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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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