LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Oil Pressure dropping??

Thread Tools
 
Search this Thread
 
Old Jan 5, 2008 | 02:05 PM
  #21  
the_merv's Avatar
11 Second Club
Veteran: Air Force
20 Year Member
Loved
Community Favorite
iTrader: (88)
 
Joined: Mar 2006
Posts: 21,019
Likes: 893
From: The Beach...
Default

Originally Posted by spookyz28
who told you that?
Melling HV's suck the Pan dry..it's happened..

As far as some of these Pressure readings with some of you guys..your Sending Unit may be bad or going bad..expecially if it says around 3..

If you had around 3psi at Idle your Lifters would sound like a Sewing Machine and you would have shot a Rod by now..
Reply
Old Jan 17, 2021 | 10:23 PM
  #22  
Kat Daddy's Avatar
Teching In
 
Joined: Jan 2021
Posts: 3
Likes: 0
Default

Originally Posted by the_merv
Melling HV's suck the Pan dry..it's happened..

As far as some of these Pressure readings with some of you guys..your Sending Unit may be bad or going bad..expecially if it says around 3..

If you had around 3psi at Idle your Lifters would sound like a Sewing Machine and you would have shot a Rod by now..


i have an lq4
with low oil pressure reading about 20-25 and drops lower when hot
lifters were replaced and pressure dropped even more to 10-15
running 10-30 sae oil
should I go thicker
Reply
Old Jan 26, 2021 | 07:37 AM
  #23  
SAPPER's Avatar
TECH Fanatic
20 Year Member
Liked
Loved
Community Favorite
iTrader: (10)
 
Joined: May 2004
Posts: 1,593
Likes: 267
From: Halfway back on the Highway to Hell...again!
Default

On an LT1 having oil pressure issues, you really need to check the oil pump drive gear. Granted it's a lot of work having to pull the intake. But the stock gears suck.

As for using Royal Purple....might wanna rethink that.
Reply
Old Jan 26, 2021 | 11:10 AM
  #24  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

Originally Posted by SAPPER
But the stock gears suck.
For the stock oil pump drive? No they don't. If they do suck it's because a cam was selected with mismatched material causing premature wear. The oil pump drive gear/cam gear are one of the most lubricated components in a SBC. They don't just up and wear out just because.
Reply
Old Jan 26, 2021 | 08:58 PM
  #25  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Default

Kat Daddy revived this old thread and he has an LQ4. No need to start rehashing LT1 stuff.
Reply
Old Jan 27, 2021 | 09:20 AM
  #26  
SS RRR's Avatar
Village Troll
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Oct 2002
Posts: 11,111
Likes: 598
From: Jackstandican
Default

Originally Posted by shbox
Kat Daddy revived this old thread and he has an LQ4. No need to start rehashing LT1 stuff.

We shouldn't rehash LT1 stuff in the LT1 section?
c'mon, maaaaaaaaaaaaaaaaan
c'mooooooooooooon
Reply
Old Jan 27, 2021 | 09:30 AM
  #27  
calgary_z28's Avatar
Launching!
 
Joined: Feb 2012
Posts: 272
Likes: 2
From: Calgary, AB (Canada)
Default

My stock 97 LT1 running cheapo 5w30 synthetic sits a hair above 20 psi at idle for oil pressure with a warmed up engine.

As long as it's close to that, I really wouldn't lose sleep over it.
Reply
Old Jan 27, 2021 | 02:31 PM
  #28  
Shownomercy's Avatar
Man-Crush Warning
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Jun 2009
Posts: 3,197
Likes: 130
Default

Oil pressure is way overrated
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Jan 27, 2021 | 07:09 PM
  #29  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Default

Originally Posted by SS RRR

We shouldn't rehash LT1 stuff in the LT1 section?
c'mon, maaaaaaaaaaaaaaaaan
c'mooooooooooooon
LOL, I just meant this thing was brought back up in error. Go ahead and hash all you want.
Reply




All times are GMT -5. The time now is 02:50 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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