C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Is this Normal?

Thread Tools
 
Search this Thread
 
Old May 21, 2003 | 08:58 PM
  #1  
vettatude's Avatar
vettatude
Thread Starter
Racer
 
Joined: May 2003
Posts: 294
Likes: 0
From: Albany OR
Default Is this Normal?

Ok, I'm still getting used to my new C5. Today has been the warmest day yet, 80-83 degrees outside. I'm sitting in traffic and watching the temp gauge. It climbs to 227 at it's highest, and never below 220 until I get moving steadily. Should I get a 180 degree stat? Is this the normal range for hot weather driving? Also, I was watching the volt meter and it's charging anywhere from 12.9-13.2 volts. Most cars that I have owned are usually up around 13.8-13.9. I suppose as long as its above 12.0 it should be charging. Also, oil pressure drops to ~22psi on these hot days while idling hot, goes up to ~40 when under accel or cruising. Sorry so long, just trying to get to know my new baby.

Thanks :steering:
Reply
Old May 21, 2003 | 10:27 PM
  #2  
alc2001's Avatar
alc2001
Racer
 
Joined: Feb 2002
Posts: 479
Likes: 1
From: Portland OR
Default Re: Is this Normal? (vettatude)

Bill - These all sound "normal" to me. I have the same experience while sitting in traffic. Changing to a 180 degree thermostat will not help. The most common remedy is lowering the PCM programmed set point for fan turn on. I have seen no explanation why the factory setting for the fans is so high.
Alan
Reply
Old May 21, 2003 | 11:04 PM
  #3  
CAPN17's Avatar
CAPN17
Safety Car
10 Year Member
 
Joined: Mar 2001
Posts: 3,567
Likes: 0
From: Aurora IL
Default Re: Is this Normal? (vettatude)

Try adding some redline water wetter, you should see a 15 to 20 degree drop in temps, I did.
Reply
Old May 21, 2003 | 11:33 PM
  #4  
clancy's Avatar
clancy
Instructor
 
Joined: Jan 2003
Posts: 204
Likes: 0
From: clarkston mich
Default Re: Is this Normal? (vettatude)

Yes this is normal for temps, your stage one cooling fan comes on somewhere around 229 & off at 220, Your 2nd stage fans come on & off about 10* higher then the 1st stage. If you want your car to run cooler then you will need to change these on off fan settings, there's several ways you can do that. :) :cheers:
Reply
Old May 22, 2003 | 01:19 AM
  #5  
C5FAST's Avatar
C5FAST
Pro
 
Joined: Oct 2002
Posts: 590
Likes: 0
From: Saratoga CA
Default Re: Is this Normal? (alc2001)

Bill - These all sound "normal" to me. I have the same experience while sitting in traffic. Changing to a 180 degree thermostat will not help. The most common remedy is lowering the PCM programmed set point for fan turn on. I have seen no explanation why the factory setting for the fans is so high.
Alan
The engine runs hotter to help reduce emissions when the car is at idle. :seeya
Reply
Old May 22, 2003 | 02:40 AM
  #6  
vettatude's Avatar
vettatude
Thread Starter
Racer
 
Joined: May 2003
Posts: 294
Likes: 0
From: Albany OR
Default Re: Is this Normal? (C5FAST HAND)

Thanks for all the replys. I don't know why I didn't think of water wetter, I run it in the Mustang and 4-runner. What ways are there to change the fan on temp? A custom chip or other device?
Reply
Old May 22, 2003 | 02:53 AM
  #7  
CAPN17's Avatar
CAPN17
Safety Car
10 Year Member
 
Joined: Mar 2001
Posts: 3,567
Likes: 0
From: Aurora IL
Default Re: Is this Normal? (vettatude)

I bought the Diablo Predator to change the fan temps and a bunch of other tuning stuff. It is a good investment. JMHO
Reply
Old May 22, 2003 | 08:37 AM
  #8  
mr_dakota's Avatar
mr_dakota
Advanced
 
Joined: Apr 2003
Posts: 99
Likes: 0
From: MN
Default Re: Is this Normal? (clancy)

"need to change these on off fan settings, there's several ways you can do that."

What are some of the ways to do that?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old May 22, 2003 | 09:22 AM
  #9  
Michael Joslyn's Avatar
Michael Joslyn
Instructor
15 Year Member
 
Joined: Nov 2002
Posts: 106
Likes: 0
From: Edwardsville IL
Default Re: Is this Normal? (vettatude)

Your oil pressure is fine. Actually I believe the book thinks 6pds is ok at idle (gasp) I think they wanted 40psi at 4K. The old 10 psi for every 1000rpm is ok for older conventional oil engines but the newer stuff is fine at 40psi. Anything more is just wasted HP.
Reply
Old May 22, 2003 | 03:13 PM
  #10  
Jeff Jeff's Avatar
Jeff Jeff
Burning Brakes
10 Year Member
 
Joined: Aug 2000
Posts: 889
Likes: 0
From: DFW tx
Default Re: Is this Normal? (Michael Joslyn)

Your temps sound normal and so does your oil pressure. When my oil is hot (220+), my pressure drops to around 20psi at idle.

Your voltage seems low though, mine runs from 13.4 up to 13.9.
Reply
Old May 23, 2003 | 08:42 PM
  #11  
vettatude's Avatar
vettatude
Thread Starter
Racer
 
Joined: May 2003
Posts: 294
Likes: 0
From: Albany OR
Default Re: Is this Normal? (Jeff Jeff)

I couldn't get my hands on water wetter, but got some hyper lube super coolant. It dropped my temps by about 15-20 degrees on average.

Bill
Reply
Old May 23, 2003 | 08:49 PM
  #12  
AC54ME's Avatar
AC54ME
Team Owner
Supporting Lifetime Gold
10 Year Member
 
Joined: Feb 2003
Posts: 37,329
Likes: 12
From: Plano Texas
CI 6-7-8-9 Veteran
CI-VI Car Show Winner
St. Jude Donor '07-'08-'09-'10-'11-'12-'13
Default Re: Is this Normal? (CAPN17)

Try adding some redline water wetter, you should see a 15 to 20 degree drop in temps, I did.
:iagree:
Reply
Old May 24, 2003 | 12:20 AM
  #13  
clancy's Avatar
clancy
Instructor
 
Joined: Jan 2003
Posts: 204
Likes: 0
From: clarkston mich
Default Re: Is this Normal? (mr_dakota)

"need to change these on off fan settings, there's several ways you can do that."

What are some of the ways to do that?
I did it with the LS1 Edit, I've read other posts that use other means to change the fan settings thru the pcm. Do a search on fan settings :cheers:

I just checked & if you do a search do it on fans, not fan settings :smash:


[Modified by clancy, 12:25 AM 5/24/2003]
Reply
Old May 24, 2003 | 02:47 AM
  #14  
MagRed01Atty's Avatar
MagRed01Atty
Instructor
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2003
Posts: 167
Likes: 0
From: Irvine CA
Default Re: Is this Normal? (CAPN17)

Hey CAPN17, I am trying to choose between purchasing the LS1 edit and Diablo Predator. Do you have any thoughts? Have you ever used Ls1 edit? :confused:
Reply
Old May 24, 2003 | 05:41 AM
  #15  
CAPN17's Avatar
CAPN17
Safety Car
10 Year Member
 
Joined: Mar 2001
Posts: 3,567
Likes: 0
From: Aurora IL
Default Re: Is this Normal? (MagRed01Atty)

No I have not used the LS1 edit, from the research I did and from what I read on the forum the following was evident. The LS1 runs on a computer, for ease of use a laptop. The laptop I have is my kids old one and the processor is antiquated. I do not need a new laptop and do not want to invest in one. The LS1 edit is very powerful and capable of doing some really advanced work that I do not want to get into at this stage of my Z06 experience, I will leave that work to the pros. I wanted someting quick and easy to use, someting that let me do the basics, something that would not confuse this poor old man. After doing a bit of research on the Available products, I found the Diablo Predator to fill the bill and that James, RWTD, the local predator sales and service, who hangs around on the board fit my requirements. James is quick to respond to phone or email requests for help, he called me while he was on vacation to answer my questions. James does the custom edits as necessary and the predator does what I need and more. Hope that answers your question I chose predator.
Reply
Old May 24, 2003 | 05:59 AM
  #16  
jojog's Avatar
jojog
Drifting
15 Year Member
 
Joined: Jul 2002
Posts: 1,262
Likes: 7
From: Kissimmee, FL
Default Re: Is this Normal? (vettatude)

Hard to believe but if you run the a/c the engine runs cooler - because the fan is on. I have turned mine on in traffic, then off on the open road - top or no top. I think the battery condition determines the charging voltage - your battery must be in good shape. Enjoy your car! :thumbs:
Reply

Get notified of new replies

To Is this Normal?





All times are GMT -4. The time now is 04:17 AM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE