For the record this is wrong!
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 1,239
Likes: 1
From: Las Vegas NV
For the record this is wrong!
http://www.theherd.com/articles/lt4_temp.html
The information in the above article was posted on this forum recently. I did this modification on my Corvette and used Delco parts. The coolant temperature sensor recommended in the article reads 15 degrees higher in temperature than the OE. I then put my vehicle back the way it was. Just wanted to pass that information along. :cheers:
The information in the above article was posted on this forum recently. I did this modification on my Corvette and used Delco parts. The coolant temperature sensor recommended in the article reads 15 degrees higher in temperature than the OE. I then put my vehicle back the way it was. Just wanted to pass that information along. :cheers:
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Re: For the record this is wrong! (crheinish)
The sending unit in the article is the same one the ZR1 uses. I used this set up on my 84 when I installed the LT1 with no problems. I wounder if you got a bad sending unit? FWIW I would recomend staying with the stock set up the only reason I went with that set up on my 84 was because it was just a simpler way for that aplication. Good info though.
Drifting
Joined: Dec 2000
Posts: 1,851
Likes: 5
From: Liberal Kansas
Re: For the record this is wrong! (crheinish)
How did you verify that 15 degree error was in the conversion and not in your oem system? If the oem was working correctly why would you want to do the conversion? :confused:
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 1,239
Likes: 1
From: Las Vegas NV
Re: For the record this is wrong! (Lionsden)
How did you verify that 15 degree error was in the conversion and not in your oem system? If the oem was working correctly why would you want to do the conversion? :confused:
Drifting
Joined: Dec 2000
Posts: 1,851
Likes: 5
From: Liberal Kansas
Re: For the record this is wrong! (crheinish)
Re-read the article and you will answer your second question. :cheers:
Melting Slicks
Joined: Apr 2000
Posts: 3,198
Likes: 2
From: Northern CA
Re: For the record this is wrong! (crheinish)
Interesting info. Well I guess I have 3 comments/questions/whatevers :D
1. Where did you place the thermometer? If there is a discrepancy between the thermometer and digital dash reading, that's a problem. If there is a discrepancy between the digital and analog guages (after the mod) then I would somewhat expect that since the analog guage probably isn't calibrated perfectly anyways (e.g. rounded to the nearest five, made to look pretty, etc)
2. This mod probably isn't necessary on the C4 since we have a digital guage which reads off the PCM sending unit.
3. Few years ago a member reported overheating his LT1. He said the guage sending unit showed the temp increase much earlier than the PCM unit. So I'd be inclined to keep the cylinder head sensor as an earlier signal of impending doom. :)
1. Where did you place the thermometer? If there is a discrepancy between the thermometer and digital dash reading, that's a problem. If there is a discrepancy between the digital and analog guages (after the mod) then I would somewhat expect that since the analog guage probably isn't calibrated perfectly anyways (e.g. rounded to the nearest five, made to look pretty, etc)
2. This mod probably isn't necessary on the C4 since we have a digital guage which reads off the PCM sending unit.
3. Few years ago a member reported overheating his LT1. He said the guage sending unit showed the temp increase much earlier than the PCM unit. So I'd be inclined to keep the cylinder head sensor as an earlier signal of impending doom. :)
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 1,239
Likes: 1
From: Las Vegas NV
Re: For the record this is wrong! (Lionsden)
Re-read the article and you will answer your second question. :cheers:
Well, Duh! If I had read to complete article I would have know why. :bb It does make one wonder why yours wasn't accurate and others seem to not have a problem.
Well, Duh! If I had read to complete article I would have know why. :bb It does make one wonder why yours wasn't accurate and others seem to not have a problem.
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 1,239
Likes: 1
From: Las Vegas NV
Re: For the record this is wrong! (84LT1)
The sending unit in the article is the same one the ZR1 uses. I used this set up on my 84 when I installed the LT1 with no problems. I wounder if you got a bad sending unit? FWIW I would recomend staying with the stock set up the only reason I went with that set up on my 84 was because it was just a simpler way for that aplication. Good info though.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Re: For the record this is wrong! (crheinish)
Not from my research. The ZR1 did not use the sensor in the article.
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 1,239
Likes: 1
From: Las Vegas NV
Re: For the record this is wrong! (84LT1)
Not from my research. The ZR1 did not use the sensor in the article.
I stand corrected :bb I thought the article used the same sensor I did but the P/N I used was 10096181 (Sensor) 02748 (Three wire pig tail) and they where used on the 94-95 ZR1 mabey thats why I had no problems?
I stand corrected :bb I thought the article used the same sensor I did but the P/N I used was 10096181 (Sensor) 02748 (Three wire pig tail) and they where used on the 94-95 ZR1 mabey thats why I had no problems?
[Modified by crheinish, 10:18 AM 5/3/2004]
