08-14-2022, 03:43 PM | #15 |
Drives: Canadian 2019 BLACK ZL1 Join Date: Feb 2020
Location: Bourges (France)
Posts: 412
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08-14-2022, 04:25 PM | #16 |
Drives: 2018 Camaro ZL1 Join Date: Aug 2018
Location: Georgia
Posts: 1,370
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Katech, the ones who make a way better oil pump than GM ever will, has said that they have tested every updated oil pump for the LT4 and they all fail. In some sort of way.
So that means GM knows that their oil pumps for the LT4 are garbage but instead of fixing the issue once they put a bandaid on it. |
08-14-2022, 04:47 PM | #17 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
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08-14-2022, 08:07 PM | #18 |
Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
Location: Walton Woods
Posts: 1,061
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I believe the same oil pump has been/is used in other GM cars and trucks, so the overall failure rate is likely much smaller than the context presented in this forum. If that is the case, I wonder if it is the use of this pump on the ZL1s and how they are driven which contributes to the failures we see here. Just pure speculation on my part.
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
Four that wanna own me Two that wanna stone me One says she's a friend of mine... |
08-15-2022, 03:08 PM | #19 | |
Drives: Canadian 2019 BLACK ZL1 Join Date: Feb 2020
Location: Bourges (France)
Posts: 412
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Quote:
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08-15-2022, 03:12 PM | #20 |
Drives: Canadian 2019 BLACK ZL1 Join Date: Feb 2020
Location: Bourges (France)
Posts: 412
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08-15-2022, 05:30 PM | #21 | |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,090
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Quote:
What was said above is irrelevant because those are different engines if they're using the same pump. Part.of the pump failure issue is the guide tensioner. That would be different on a non-LT4 engine. |
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08-16-2022, 12:07 AM | #22 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
It’s going in my new engine as well. The truck pumps have been used for quite awhile as replacements and I’m not aware of any failure on those.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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08-16-2022, 07:52 AM | #23 | |
Drives: Canadian 2019 BLACK ZL1 Join Date: Feb 2020
Location: Bourges (France)
Posts: 412
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Quote:
You know what the ignorant says to you ? So start to respect others with humility…you know where the issue is … |
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08-16-2022, 08:16 AM | #24 | |
Petro-sexual
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Quote:
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'20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
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08-16-2022, 01:12 PM | #25 | |
Drives: 2018 ZL-1 Join Date: Jan 2018
Location: Albuquerque
Posts: 948
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Quote:
I have been on this forum for 4 years, and I have never heard of this problem from people who have had actual oil pump failures. I'm pretty sure I have read the entire oil pump thread. Can you point to a post on the forum about such a failure? The oil pump failures on the thread all seem to be cracking failures of the outer ring inside the oil pump. The vanes from the pump rotor eventually snag on the crack, and the inside of the oil pump gets torn up. I looked at the LME video about their tensioner replacement, and it seems like a normal upgrade for a racing engine, but absent even one post about this on this forum, I'm a little perplexed about this aspect of oil pump failures. |
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08-16-2022, 01:48 PM | #26 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
Timing chain tensioner. https://latemodelengines.com/lt-timing-chain-guide.html
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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08-16-2022, 01:51 PM | #27 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
Its a well known issue. https://www.autoserviceprofessional....r-chevy-camaro
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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08-16-2022, 02:10 PM | #28 | |
Drives: 2018 ZL-1 Join Date: Jan 2018
Location: Albuquerque
Posts: 948
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Quote:
You state that it is a well-known issue. I just don't see these cam chain types of failures on this forum. |
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