Thicking noise on restored engine and low oil pressure - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

morepowerjoe · 07-31-2021, 04:18 AM

Which oil pump did you install?

JBZL1 · 07-31-2021, 10:39 PM

Have you check the pressure with a gage in the block other than the dash oil pressure?
Just curious because today I noticed my aeroforce and dash gage had different readings?
Not crazy different but 5 to 10 lbs at times ...

morepowerjoe · 08-01-2021, 06:25 AM

Yeah my gauge reads about 8 psi less than my ecm.

pierre · 08-01-2021, 07:51 AM

did you replace the valley cover plate under the intake , when i did my cam swap , i had the same issue . once i install the new valley plate without the selenoid for the AFM/DOD my oil pressure came back to normal.

aaberg · 08-01-2021, 02:04 PM

1. Installed Melling high volume oil pump 10355 https://www.summitracing.com/int/par...2/model/camaro

2. No not yet. I will check fuel pressure with a gauge but need to find and buy one first.

3. Yes, did install Trick Flow Specialties TFS-30678503 - Trick Flow® Active Fuel Management Standard Delete Kits. https://www.summitracing.com/parts/t...make/chevrolet

At about 700 rpm oil pressure is 30 psi but drops to about 15 psi at 500 rpm. Will rise idle to 700 rpm to get better pressure but also since I have installed a COMP Cams MK189-301-13 - COMP Cams Stage 1 LST Master Camshaft Package that gives a instable idle below 700 rpm. https://www.summitracing.com/parts/cca-mk189-301-13

aaberg · 08-01-2021, 02:18 PM

BTW:
Any recommendations for a FUEL PRESSURE GAUGE KIT for a Camaro 2012 SS to order? Please add link. Thank you!

sdynak · 08-01-2021, 02:21 PM

Maybe just me but I would be uncomfortable unless I could verify the oil pressure is really that low at idle especially with the HV pump. I would have an uneasy feeling always and stare at it. Doesn't seem normal to me but I don't have the L99 and idling that low. It seems to recover at the higher RPM's so maybe it is ok but would be looking to verify one way or another especially if it were not like this before.

morepowerjoe · 08-01-2021, 07:13 PM

Yeah I would definitely raise the idle on it.

Car Nation Videos · 08-01-2021, 08:21 PM

I think it’s fine.

morepowerjoe · 08-02-2021, 02:08 AM

It's almost definitely not fine. What you should do is hook up a vacuum gauge to your intake manifold and have someone idle the engine up a little and watch the vacuum gauge and see if the vacuum goes up or not. Or if you have a scanner that will show manifold reading you can watch that as you idle the engine up. What you want is the highest manifold vacuum at idle and that's where you set your idle at. Mine was at 500 rpm when I was stock but after the cam swap the tuner set my rpm to 7-800 rpm.

George-CZ · 08-02-2021, 06:16 AM

Quote:

Originally Posted by sdynak

Maybe just me but I would be uncomfortable unless I could verify the oil pressure is really that low at idle especially with the HV pump. I would have an uneasy feeling always and stare at it. Doesn't seem normal to me but I don't have the L99 and idling that low. It seems to recover at the higher RPM's so maybe it is ok but would be looking to verify one way or another especially if it were not like this before.

I see it in exactly the same way.
I have a stock LS3 pump and when idling on a hot engine I have a much higher pressure.

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07-31-2021, 04:18 AM	#15
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,105	Which oil pump did you install? __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

07-31-2021, 10:39 PM	#16
JBZL1 Drives: 2012 ZL1 Join Date: Apr 2015 Location: Kitchener ON, Canada Posts: 176	Have you check the pressure with a gage in the block other than the dash oil pressure? Just curious because today I noticed my aeroforce and dash gage had different readings? Not crazy different but 5 to 10 lbs at times ... __________________ 2012 ZL1 preproduction car #13 ROTO-FAB intake / IC reservoir , 2.85" upper , ported inlet

08-01-2021, 06:25 AM	#17
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,105	Yeah my gauge reads about 8 psi less than my ecm. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

08-01-2021, 02:21 PM	#21
sdynak Drives: 2010 1SS Join Date: Aug 2015 Location: Bayville, NJ Posts: 936	Maybe just me but I would be uncomfortable unless I could verify the oil pressure is really that low at idle especially with the HV pump. I would have an uneasy feeling always and stare at it. Doesn't seem normal to me but I don't have the L99 and idling that low. It seems to recover at the higher RPM's so maybe it is ok but would be looking to verify one way or another especially if it were not like this before. __________________ 2010 1SS LS3, Black, 235/250, .621/.615, 114 + 4, Kooks Stepped Headers, 3.91's, Bo White PTB, Flowmaster Mufflers, Cold Air Industries CAI, Apex Scoop & Windshield Washer Relocate, SLP Wheels, Skip Shift Eliminate, Barton Flat Stick, OEM HID/Halos, Dyno Tuned by ECS

08-01-2021, 07:13 PM	#22
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,105	Yeah I would definitely raise the idle on it. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

08-01-2021, 07:51 AM	#18
pierre Drives: 2010 camaro ss/rs imperial blue met Join Date: Jul 2013 Location: Gatineau,canada Posts: 8	did you replace the valley cover plate under the intake , when i did my cam swap , i had the same issue . once i install the new valley plate without the selenoid for the AFM/DOD my oil pressure came back to normal.

08-01-2021, 02:04 PM	#19
aaberg Drives: 1997 30th conv & 2012 45th conv Join Date: Jul 2017 Location: Sweden Posts: 122 View My Garage	1. Installed Melling high volume oil pump 10355 https://www.summitracing.com/int/par...2/model/camaro 2. No not yet. I will check fuel pressure with a gauge but need to find and buy one first. 3. Yes, did install Trick Flow Specialties TFS-30678503 - Trick Flow® Active Fuel Management Standard Delete Kits. https://www.summitracing.com/parts/t...make/chevrolet At about 700 rpm oil pressure is 30 psi but drops to about 15 psi at 500 rpm. Will rise idle to 700 rpm to get better pressure but also since I have installed a COMP Cams MK189-301-13 - COMP Cams Stage 1 LST Master Camshaft Package that gives a instable idle below 700 rpm. https://www.summitracing.com/parts/cca-mk189-301-13

08-01-2021, 02:18 PM	#20
aaberg Drives: 1997 30th conv & 2012 45th conv Join Date: Jul 2017 Location: Sweden Posts: 122 View My Garage	BTW: Any recommendations for a FUEL PRESSURE GAUGE KIT for a Camaro 2012 SS to order? Please add link. Thank you!

08-01-2021, 08:21 PM	#23
Car Nation Videos YouTube-Car Nation Videos Drives: 2010 Chevrolet Camaro Join Date: Nov 2019 Location: Florida Posts: 246	I think it’s fine.

08-02-2021, 02:08 AM	#24
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,105	It's almost definitely not fine. What you should do is hook up a vacuum gauge to your intake manifold and have someone idle the engine up a little and watch the vacuum gauge and see if the vacuum goes up or not. Or if you have a scanner that will show manifold reading you can watch that as you idle the engine up. What you want is the highest manifold vacuum at idle and that's where you set your idle at. Mine was at 500 rpm when I was stock but after the cam swap the tuner set my rpm to 7-800 rpm. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817