Everything LS3/L99 Oil Pumps - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Motion427 · 02-10-2012, 08:13 PM

As far as I know,plenty of L99's converted to LS3 are still running the factory L99 oil pumps with no issues.Correct me if I'm wrong.

HaubSS · 02-10-2012, 09:09 PM

Very informative write up, thanks for the effort. Answered all my upgrade questions for my new cam.

v8 · 04-04-2012, 08:53 PM

Thanks for the write up

SixGracing · 04-04-2012, 09:07 PM

Quote:

Originally Posted by Motion427

As far as I know,plenty of L99's converted to LS3 are still running the factory L99 oil pumps with no issues.Correct me if I'm wrong.

I have an L99 to LS3 converted motor and as far as I know am running the factory oil pump. No issues that I'm aware of..

camaro1 · 04-05-2012, 01:04 AM

also just so you know all ls3 and l99 engines come with an active fuel managment(dod) oil pressure relief valve built into the oil pan ( yes even the ls3 engines have this, probly cheaper for gm just to build all the oil pans with this valve) , and if you leave it in you will always be limited to 50psi max, as the valve opens at 50 psi and blows the oil right back into the oil pan.

a 1/4" pipe plug fits perfect if you remove the valve, i have had mine out since i built my engine 12,000 miles ago and it works perfect with the l99 pump,, the factory oil filters have their own oil pressure relief built into them.

SUX2BU · 04-05-2012, 01:26 AM

I have never been a fan of aftermarket pumps. I've installed dozens because that is what people wanted, but I only recommend replacing them with stock if they are starting to go bad.

mike.nite · 04-05-2012, 03:27 PM

Quote:

Originally Posted by Motion427

As far as I know,plenty of L99's converted to LS3 are still running the factory L99 oil pumps with no issues.Correct me if I'm wrong.

+1

Probably that's just marketing

Luckymex_dallas · 11-26-2012, 11:22 PM

HMMM...IM NOT BUYING THE "ANY OIL PUMP WITH A RELIEF VALVE STICKS PART"

GM NEEDS TO OWN THEY HAVE A SHITTY PART...MANY OWNERS PUMPS ARE STICKING AT LESS THEN 5000 MILES...MINE MADE IT TO 50,000.....NUFF SAID

Secret Squirrel · 07-01-2013, 07:35 PM

Interesting that GM is now trying to charge me $1700 for a new oil pump, stating that it failed because my car is cammed. My car has 20k miles on it.

kevint · 07-02-2013, 10:30 AM

Quote:

Originally Posted by ztsmith86

If it adds any "good" to my original post I hold 2 engineering degrees from MIT and design water/wastewater systems all over the country. I have very practical and design knowledge of almost ever valve you could ever imagine ..... i.e. pressure relief valves. I'm not a engine expert by any means ... I really only state this info about me to give credit to my ability to assemble details

Things like Q and Re mean the same thing regardless of fluid type and application. Source: I have two engineering degrees from NJIT.

Thank you anyway for the information. There seems to be a lot of nitpicking on details like this here. Hopefully this will put some of it to rest.

PS-Fluid Mechanics was one of my favorite classes.

Ivan @ Southwest Speed · 07-02-2013, 10:41 AM

Quote:

Originally Posted by Motion427

As far as I know,plenty of L99's converted to LS3 are still running the factory L99 oil pumps with no issues.Correct me if I'm wrong.

This is truth.

Great info on what part numbers do what for folks though. Thanks for helpin it out!

Ivan @ Southwest Speed

thahemp · 07-02-2013, 12:19 PM

I don't have a degree in fluid dynamics or statistics, but I'm not sure it's needed. Maybe in theory you should be correct, but in reality... the stock LS3 pumps stick open frequently. I have seen next to nothing as far as problems with the 10296. I'll let someone else more knowledgeable than I explain why.

kevint · 07-02-2013, 01:09 PM

Quote:

Originally Posted by thahemp

I don't have a degree in fluid dynamics or statistics, but I'm not sure it's needed. Maybe in theory you should be correct, but in reality... the stock LS3 pumps stick open frequently. I have seen next to nothing as far as problems with the 10296. I'll let someone else more knowledgeable than I explain why.

Manufacturing tolerances

thahemp · 07-02-2013, 01:16 PM

Yeah. So the takeaway here is..

Use the Melling 10296 pump in place of the LS3. It doesn't fail like the stock one's aren't supposed to. And don't worry about a double roller chain. You don't need it. Use a good IWIS or C5R single chain and be done with it.

02-10-2012, 09:09 PM	#16
HaubSS Drives: '11 IBM 2SS/RS LS3/M6 Join Date: Feb 2011 Location: Lemoore, CA Posts: 469 View My Garage	Very informative write up, thanks for the effort. Answered all my upgrade questions for my new cam. __________________ 2011 IBM 2SS/RS - LS3/M6 - Grey Interior Full bolt-ons + TSP 229/236, 112 LSA Tuned by STARKWEATHER PERFORMANCE BMR Stage 3 suspension MRR 288 - 20x10(+35), 20x11(+43)

04-04-2012, 08:53 PM	#17
v8 Drives: 19 Z06 Join Date: Nov 2011 Location: Oakville Ont. Posts: 1,427	Thanks for the write up __________________ Gone but not forgotten: 1974 Corvette Stingray 454 1986 Z28 2009 Mustang GT convertible 2012 45th 2SS Vert 2013 ZL1 M6 2014 Zl1 M6 2014 GT500 2016 Challenger Hellcat M6 www.youtube.com/c/garageking

04-05-2012, 01:04 AM	#19
camaro1 Drives: 550+RWHP 2010 camaro Join Date: Sep 2007 Location: wisconsin Posts: 1,588	also just so you know all ls3 and l99 engines come with an active fuel managment(dod) oil pressure relief valve built into the oil pan ( yes even the ls3 engines have this, probly cheaper for gm just to build all the oil pans with this valve) , and if you leave it in you will always be limited to 50psi max, as the valve opens at 50 psi and blows the oil right back into the oil pan. a 1/4" pipe plug fits perfect if you remove the valve, i have had mine out since i built my engine 12,000 miles ago and it works perfect with the l99 pump,, the factory oil filters have their own oil pressure relief built into them. __________________ 415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller

04-05-2012, 01:26 AM	#20
SUX2BU Quit being a pu$$y Drives: FAST Join Date: Jan 2011 Location: Sachse TX (DFW) Posts: 5,825 View My Garage	I have never been a fan of aftermarket pumps. I've installed dozens because that is what people wanted, but I only recommend replacing them with stock if they are starting to go bad. __________________ <----- Click HERE to see ALL of my mods/write ups

07-01-2013, 07:35 PM	#23
Secret Squirrel Drives: 1965 Chevelle Malibu Join Date: Jan 2012 Location: San Antonio, Tx Posts: 472 View My Garage	Interesting that GM is now trying to charge me $1700 for a new oil pump, stating that it failed because my car is cammed. My car has 20k miles on it. __________________

02-10-2012, 08:13 PM	#15
Motion427 Account Suspended Drives: 2010 2SS/RS Red Jewel L99 Join Date: Jun 2011 Location: NB,Canada Posts: 834	As far as I know,plenty of L99's converted to LS3 are still running the factory L99 oil pumps with no issues.Correct me if I'm wrong.

11-26-2012, 11:22 PM	#22
Luckymex_dallas Drag Racer Drives: 2010 2SS/Rs Join Date: Dec 2010 Location: Dallas Posts: 167	HMMM...IM NOT BUYING THE "ANY OIL PUMP WITH A RELIEF VALVE STICKS PART" GM NEEDS TO OWN THEY HAVE A SHITTY PART...MANY OWNERS PUMPS ARE STICKING AT LESS THEN 5000 MILES...MINE MADE IT TO 50,000.....NUFF SAID

07-02-2013, 12:19 PM	#26
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	I don't have a degree in fluid dynamics or statistics, but I'm not sure it's needed. Maybe in theory you should be correct, but in reality... the stock LS3 pumps stick open frequently. I have seen next to nothing as far as problems with the 10296. I'll let someone else more knowledgeable than I explain why. __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

07-02-2013, 01:16 PM	#28
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	Yeah. So the takeaway here is.. Use the Melling 10296 pump in place of the LS3. It doesn't fail like the stock one's aren't supposed to. And don't worry about a double roller chain. You don't need it. Use a good IWIS or C5R single chain and be done with it. __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Can we use the catchcan made for the G8?	HaZe_X	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	16	05-05-2010 10:35 AM
Great Read and Info on Oil Weight	Banshee	Mechanical Maintenance: Break-in / Oil & Fluids / Servicing	1	11-23-2009 09:03 PM
synthetic motor oil?	bigd1276	Mechanical Maintenance: Break-in / Oil & Fluids / Servicing	71	01-29-2009 12:28 PM
Major U.S. oil source is tapped	KILLER74Z28	Off-topic Discussions	32	10-30-2007 09:47 AM