Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

oil pressure

Thread Tools
 
Search this Thread
 
Old Apr 26, 2005 | 02:13 PM
  #1  
BigSteele's Avatar
Thread Starter
12 Second Club
iTrader: (17)
 
Joined: Oct 2004
Posts: 1,404
Likes: 0
From: Houston, TX
Default oil pressure

I have a 99, my oil pressure is usually around 50 according to the gauge.
Is this normal, I know most people recomend swapping the oil pump on the pre 01? cars dues to a weak pump, but mine seems like its doing the job good.

Whats the psi for a good pump? does the psi give indication of the pump condition or can an oil pump work good then suddenly "break" and loose pressure?
Reply
Old Apr 26, 2005 | 02:16 PM
  #2  
Race Car Driver's Avatar
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

60 Lbs would be closer to average.
Originally Posted by BigSteele
I have a 99, my oil pressure is usually around 50 according to the gauge.
Is this normal, I know most people recomend swapping the oil pump on the pre 01? cars dues to a weak pump, but mine seems like its doing the job good.

Whats the psi for a good pump? does the psi give indication of the pump condition or can an oil pump work good then suddenly "break" and loose pressure?
Reply
Old Apr 26, 2005 | 05:38 PM
  #3  
ta981's Avatar
Staging Lane
iTrader: (10)
 
Joined: Mar 2005
Posts: 97
Likes: 0
From: Chicago
Default

My TA is at 40 psi @ Idle. Your PSI is pretty much normal. I wouldnt worry about it.
Originally Posted by bickelfirebird
60 Lbs would be closer to average.
Reply
Old Apr 27, 2005 | 10:14 AM
  #4  
Race Car Driver's Avatar
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

And my bbc idles at 70 to 75 lbs.
Originally Posted by BigSteele
I have a 99, my oil pressure is usually around 50 according to the gauge.
Is this normal, I know most people recomend swapping the oil pump on the pre 01? cars dues to a weak pump, but mine seems like its doing the job good.

Whats the psi for a good pump? does the psi give indication of the pump condition or can an oil pump work good then suddenly "break" and loose pressure?
Reply
Old Apr 27, 2005 | 06:21 PM
  #5  
Bill Bowling's Avatar
TECH Addict
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Apr 2003
Posts: 2,597
Likes: 4
From: Lawrenceville, GA
Talking

Mine runs about 50-60 idle and 70 at WOT. I do have a ported LS6 pump.

Bill
Reply
Old Apr 28, 2005 | 09:54 AM
  #6  
Race Car Driver's Avatar
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

I find it curious that there is such a wide range of oil pressures amongst the site users, anywhere from 20 to 60 lbs at idle. Wow, that shouldn't be.
Originally Posted by Bill Bowling
Mine runs about 50-60 idle and 70 at WOT. I do have a ported LS6 pump.

Bill
Reply
Old May 1, 2005 | 12:16 AM
  #7  
soslo's Avatar
TECH Apprentice
iTrader: (12)
 
Joined: May 2002
Posts: 386
Likes: 0
From: Austin, TX
Default

with my ported ls6 pump, and stock block, I see about 60 psi at idle, and 70+ at WOT. Somewhere just under 80 (maybe 78) is the highest I've seen
Reply
Old May 1, 2005 | 04:14 PM
  #8  
windshear's Avatar
Staging Lane
 
Joined: Oct 2004
Posts: 64
Likes: 0
From: Dallas, TX
Default

My stock 02 T/A oil preasure at idle is 45PSI after warm-up. It starts as high as 60PSI when cold.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old May 1, 2005 | 06:48 PM
  #9  
Camaro99SS's Avatar
TECH Resident
20 Year Member
iTrader: (4)
 
Joined: Nov 2004
Posts: 879
Likes: 0
From: Nashville, TN
Default

My car idles at 45 when warm, runs about 60 cruising and 70 WOT. That's with the stock pump and German Syntec 0W30.

Jason
Reply
Old May 1, 2005 | 09:01 PM
  #10  
BigSteele's Avatar
Thread Starter
12 Second Club
iTrader: (17)
 
Joined: Oct 2004
Posts: 1,404
Likes: 0
From: Houston, TX
Default

so whats the problem with the 98-99(?) pumps?
what happens to make them lose pressure, is there a way to monitor/predict such an event?
Reply




All times are GMT -5. The time now is 10:48 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE