C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oil Pressure Question

Thread Tools
 
Search this Thread
 
Old Dec 30, 2006 | 01:53 PM
  #1  
CAJUN C4's Avatar
CAJUN C4
Thread Starter
Safety Car
10 Year Member
 
Joined: Feb 2000
Posts: 3,771
Likes: 0
From: MANDEVILLE, LA La
Default Oil Pressure Question

The shop manual says oil pressure should be 50 to 65 Psi at 2,000 RPM>

What's yours?

Mine is about 35 Psi when full operating Temp.
Reply
Old Dec 30, 2006 | 03:57 PM
  #2  
BADDUCK's Avatar
BADDUCK
Le Mans Master
 
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Default

about 45 warmed up and about 50 at highway speeds.
Reply
Old Dec 30, 2006 | 05:33 PM
  #3  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,183
Likes: 1,740
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default

It should be 45-60 at cruise, and about half of that at idle....getting lower as the engine gets hot.

Mine runs about 60psi at hwy cruise.
Reply
Old Dec 30, 2006 | 07:54 PM
  #4  
86GoldProject's Avatar
86GoldProject
Pro
 
Joined: Feb 2005
Posts: 560
Likes: 0
From: Hamilton New Jersey
Default

factory sending units are known to go bad and be inaccurate even when new, before worrying about oil pressure hook up a mechanical gauge and see what it says.
Reply
Old Dec 30, 2006 | 08:39 PM
  #5  
C4Techie's Avatar
C4Techie
Racer
 
Joined: May 2006
Posts: 293
Likes: 0
Default

Originally Posted by CAJUN C4
The shop manual says oil pressure should be 50 to 65 Psi at 2,000 RPM>
I have never seen anything like that in mine. In what section, chapter, etc, are you finding that?
Reply
Old Jan 2, 2007 | 09:08 AM
  #6  
CAJUN C4's Avatar
CAJUN C4
Thread Starter
Safety Car
10 Year Member
 
Joined: Feb 2000
Posts: 3,771
Likes: 0
From: MANDEVILLE, LA La
Default

Originally Posted by C4Techie
I have never seen anything like that in mine. In what section, chapter, etc, are you finding that?
I think it's in the front of the Engine section under "specifications" in my Haines Manual. I didn't look in my Helms Manual.

Mine is over 60 when cold but about 35 Psi @ 2,000 RPM when warmed. At idles goes to 10-20 sometimes.I ws wondering if I had a bad Oil Pump? The engine has 25K miles on it.
Reply
Old Jan 2, 2007 | 09:16 AM
  #7  
rick lambert's Avatar
rick lambert
Le Mans Master
10 Year Member
 
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Default

My 87 with 103,000 runs in the same range as Vaders, With only 25K on an engine I would expect higher at idel than what your seeing, but before I dropped the pan I'd hook up a manual guage, quite possibly your sending unit is in need of replacement...btw was your engine build clearanced?
Reply
Old Jan 2, 2007 | 09:21 AM
  #8  
CAJUN C4's Avatar
CAJUN C4
Thread Starter
Safety Car
10 Year Member
 
Joined: Feb 2000
Posts: 3,771
Likes: 0
From: MANDEVILLE, LA La
Default

Originally Posted by rick lambert
My 87 with 103,000 runs in the same range as Vaders, With only 25K on an engine I would expect higher at idel than what your seeing, but before I dropped the pan I'd hook up a manual guage, quite possibly your sending unit is in need of replacement...btw was your engine build clearanced?
It was perfect for 3 years..might be the sending unit....
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old Jan 2, 2007 | 09:55 PM
  #9  
LannyL81's Avatar
LannyL81
Melting Slicks
20 Year Member
Conversation Starter
 
Joined: Nov 2005
Posts: 3,323
Likes: 142
From: Green Valley Arizona
Default About those oil pressure sending units....

First question: why are there two sending units? And which is which?

Anyone know the parts numbers for them?
Reply

Get notified of new replies

To Oil Pressure Question





All times are GMT -4. The time now is 08:08 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE