I have about same; 55 psi cold engine and 25 psi hot at idle 800 rpm. Restored, tuned up and Stage 1 kit on my L99-engine Camaro 2012 SS.

@@johnnyaberg9617 is yours at 50 something while driving as well even when worm at 2 to 3k rpm I see 52 psi under load at normal. I got a pretty big cam in mine I don’t think that makes a difference tho for oil pressure

@@dobetter4271 I got about 30 - 40 psi during drive with hot engine.

@@johnnyaberg9617hey man I know it’s been a while since you posted this but i just wanted to get your thoughts on my situation, my car is stock, aside from exhaust and cold air filter, I live in California. My car hot at idle sits between 15-20 psi is that about normal? I did have the sensor replaced not too long ago, l99 motor btw

@@Kevin__.5 Hi Kevin! I got about 30 psi hot at idle. I guess that's quite normal and also why GM have put 30 in top of the console. Generally, an acceptable oil pressure for many V8 engines with a warm engine can be in the range of 20 to 60 psi at idle. According to GM's service manual, the minimum acceptable oil pressure for a warm engine is that low as 6 psi at 1000 rpm, 18 psi at 2000 rpm, and 24 psi at 4000 rpm. Perhaps a oil change/filter and change of oil brand can get the pressure up a bit.

Not sure about your question. I bought the car with low oil pressure and the milage was 140 000 km. Restored engine and have now driven the car about 10 000 km. Is 30 psi on idle with hot engine and 70 psi with cold engine.

Yes, after restoration about 550 rpm idle mine was 20 after now idle is set på 900 rpm and is 30.

At 550 on idle 20 psi will de Ok. I have tuned my modified engine to 900 psi and have 30 psi and 50'-70 with cold engine.

It has been reported that there are several issues with the L99, including cam bearings that slip out of place, leading to reduced oil pressure. Additionally, the seal on the oil pump neck can crack, causing low oil pressure. Specific AFM (Active Fuel Management) problems have been noted, where the special lifters sometimes stick and lose their functionality. Low oil pressure due to leakage at the numerous seals, including the AFM system, is also common. Generally, an acceptable oil pressure for many V8 engines at warm idle can range from 20 to 60 psi. According to GM's service manual, the minimum acceptable oil pressure at a warm engine is 6 psi at 1000 rpm, 18 psi at 2000 rpm, and 24 psi at 4000 rpm.

I deleted dod and put tsp 2.2 cam and didn't change oil pump or pick up tube o-ring and I'm not sure if that's what's making me have low oil pressure but it stays around 20psi at all times. It's high miles but the heads and everything we're done to match the cam. It runs great and I am not even sure it's actually low pressure

Not quite easy to tell since I live in Sweden and had to import all parts from US (= extra tax and toll and payment in poor rate for our Swedish pesetas made cost much higher than if you buy in US). I also have a friend at a mechanic shop that made all mechanic work for free. I bought my parts from Autoshop in Florida autoshopracingengines.com/ that worked with Summit racing. At the rebult I choosed Stage 1 for L99 to get some extra horses (+500 hp and 900 in torque), I also removed AFM and some extra stuff. If you only want to repair lifters all work can be done with out removing engine. I suggest to remove AFM.

Please find a a list what I have changed. Can perhaps give you an idea what you want to to. Base problem is the AFM-system leaking oil in all it's bussings so remove AFM with Trick Flow Active Fuel Management Standard Delete Kits TFS-30678503. Seceond is to replace with a Melling High-Volume Oil Pumps 10355HV. Good luck!: Part name USD Weblink Trick Flow Active Fuel Management Standard Delete Kits TFS-30678503 380 USD www.summitracing.com/parts/tfs-30678503/make/chevrolet COMP Cams Stage 1 LST Master Camshaft Packages MK189-301-13 1 350 USD www.summitracing.com/parts/cca-mk189-301-13 012 CHEVROLET CAMARO Melling High-Volume Oil Pumps 10355HV 198 USD www.summitracing.com/int/parts/mel-10355hv/make/chevrolet/year/2012/model/camaro COMPLETE ENGINE GASET KIT (CAN'T FIND ANY) 175 USD www.summitracing.com/int/parts/fel-hs26192-pt-9/applications/make/chevrolet/year/2012/model/camaro/engine-vin-code/j WATERPUMP 187 USD www.summitracing.com/int/parts/ado-251-734?retaillocation=int 2012 CHEVROLET CAMARO Torque Converter Fasteners 9 USD www.summitracing.com/parts/rnb-14099/year/2012/make/chevrolet/model/camaro ARP Pro Series Flexplate Bolt Kits 244-2902 25 USD www.summitracing.com/parts/arp-244-2902/make/chevrolet ACDelco 12639280 34 USD www.summitracing.com/parts/ado-12639280 Continental OE Technology Series Multi-V Stretch Belts 4040382S 15 USD www.summitracing.com/int/parts/cel-4040382s/applications/make/chevrolet?prefilter=1 2012 CHEVROLET CAMARO Fel-Pro Headbolt Kits ES72390 48 USD www.summitracing.com/parts/fel-es72390/make/chevrolet/year/2012/model/camaro Speed-Pro Hypereutectic Pistons H1516CP .50MM 419 USD www.summitracing.com/parts/slp-h1516cp50mm Range Technology AFM Disabler Devices RA003B 195 USD www.summitracing.com/parts/ret-ra003?retaillocation=int&filters=year%2F2012%2Fmake%2Fchevrolet%2Fmodel%2Fcamaro%2F Summit Racing VVT Delete Combos 09-0028 138 USD www.summitracing.com/parts/cmb-09-0028 2012 CHEVROLET CAMARO ACDelco Professional Platinum Spark Plugs 19299585 80 USD www.summitracing.com/int/parts/ado-41-962/year/2012/make/chevrolet/model/camaro 2012 CHEVROLET CAMARO ACDelco Spark Plug Wire Sets 19297035 44 USD www.summitracing.com/int/parts/ado-9748uu/year/2012/make/chevrolet/model/camaro/submodel/ss Clevite P-Series Main Bearings MS-2199P 123 USD www.summitracing.com/int/parts/cle-ms2199p/make/chevrolet Clevite P-Series Main Bearings MS-2199P-10 95 USD www.summitracing.com/int/parts/cle-ms2199p10/make/chevrolet Clevite P-Series Rod Bearings CB-663P(8) 41 USD www.summitracing.com/int/parts/cle-cb663p8/make/chevrolet Clevite P-Series Rod Bearings CB-663P-10(8) 37 USD www.summitracing.com/int/parts/cle-cb663p108?retaillocation=int ACDelco GM OE TPMS Sensors 19383804 172 USD www.summitracing.com/int/parts/ado-tpms175k?retaillocation=int Fel-Pro Oil Pump Gaskets 72401 4 USD www.summitracing.com/parts/fel-72401 TOTAL COST 3 769 USD

Thanks for all the info ! Really appreciate you .

I had to restore my engine. Problem was leakings in the AFM-system, two bad AFM-lifters, poor oil presure pump. I removed AFM-system, added Mellings high oil presure etc. Also replaced all other worn parts (bearings, camshaft etc).there is kits on market tha replace AFM-system. Also added Comp cams stage 1.

I had to restore my engine. Problem was leakings in the AFM-system, two bad AFM-lifters, poor oil presure pump. I removed AFM-system, added Mellings high oil presure etc. Also replaced all other worn parts (bearings, camshaft etc).there is kits on market tha replace AFM-system. Also added Comp cams stage 1.

Before engine rebuilt oil pressure droped down to close to no pressure at all with hot engine. Removed ATF to get better pressure.

After rebuild pressure is 20-30 psi at idle 900 rpm with hot engine and 50-70 psi with cold enigine..

@@johnnyaberg9617QUE ES EL ATF?

The rpm at idle was a bit low then I made this video. I did change the idle låter to about 800-900 rpm and on cold engine it's now a bit well over 30 and at hot engine around 30.