Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

modifying stock thermostat....

Thread Tools
 
Search this Thread
 
Old Oct 22, 2002 | 09:56 PM
  #1  
BlakCamZ28's Avatar
Thread Starter
Teching In
 
Joined: Jul 2002
Posts: 45
Likes: 0
From: Southwick,MA
Default modifying stock thermostat....

I came across this on ls1info.com, who on here has done this and did it work well? Also what did you use for shims?
Reply
Old Oct 22, 2002 | 11:27 PM
  #2  
felton316's Avatar
TECH Addict
 
Joined: Nov 2001
Posts: 2,593
Likes: 0
From: TEXAS
Default Re: modifying stock thermostat....

I did it and it worked just as well as a $50 thermostat. I used a small piece of a stainless steel machine screw (#10 I think, roughly 3/16 diameter). I used stainless so it wouldn't rust. After I cut a small piece off, I ground it down and used a set of digital calipers to measure it.
Reply
Old Oct 23, 2002 | 04:24 AM
  #3  
Patman's Avatar
TECH Senior Member
 
Joined: Nov 2001
Posts: 7,234
Likes: 1
From: Mississauga, Ontario
Default Re: modifying stock thermostat....

I ran one of these for about two years on my 98 and it worked perfectly. I too used a 3/16" spacer and it made the thermostat behave like a 160 unit.
Reply
Old Oct 23, 2002 | 08:20 PM
  #4  
NC Guy's Avatar
Launching!
 
Joined: Dec 2001
Posts: 206
Likes: 0
From: N. Carolina
Default Re: modifying stock thermostat....

Can someone please post the details of this T-stat mod? As has been said, the tech-ls1.com link is dead.

Thanks for knowledgable replys.

Enjoy your cars.
Reply
Old Oct 24, 2002 | 12:16 AM
  #5  
SJH's Avatar
SJH
TECH Regular
 
Joined: Feb 2002
Posts: 414
Likes: 0
From: the moon
Default Re: modifying stock thermostat....

I originated this mod back when I was known as Just Me.
The mod was originally posted on the now gone www.tech-ls1.com

Glad it's still being done <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Steve
Reply
Old Oct 24, 2002 | 08:57 AM
  #6  
02 SOM WS6's Avatar
TECH Enthusiast
 
Joined: Nov 2001
Posts: 678
Likes: 0
From: Kemah, TX
Default Re: modifying stock thermostat....

Try this link to get to LS1-tech:

Web.archive.org for LS1-tech.com

Whenever a site goes away and you still want to try to access it, try http://web.archive.org/ and then the old url. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Les
Reply
Old Oct 24, 2002 | 09:50 AM
  #7  
mattbta's Avatar
Teching In
 
Joined: Aug 2002
Posts: 20
Likes: 0
From: DFW, TX
Default Re: modifying stock thermostat....

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by SJH:
<strong>I originated this mod back when I was known as Just Me.
The mod was originally posted on the now gone www.tech-ls1.com

Glad it's still being done <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Steve</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">rip www.tech-ls1.com
long live just me1,2,3,4
Reply
Old Oct 24, 2002 | 09:26 PM
  #8  
felton316's Avatar
TECH Addict
 
Joined: Nov 2001
Posts: 2,593
Likes: 0
From: TEXAS
Default Re: modifying stock thermostat....

http://ls1info.com/article.php?sid=180

that should explain it.
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 Oct 25, 2002 | 08:11 AM
  #9  
robertbartsch's Avatar
TECH Veteran
 
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
Default Re: modifying stock thermostat....

I used this mod several weeks ago. I used tin foil as a spacer/simm. ...works really great! ...the best part is it is free!!!!
Reply
Old Oct 26, 2002 | 10:00 PM
  #10  
CAT3's Avatar
Restricted User
iTrader: (9)
 
Joined: Sep 2002
Posts: 7,603
Likes: 0
From: Sierra Vista, AZ
Default Re: modifying stock thermostat....

Reading the Info article, I understand the principle and al that, but the unclear thing to me is the whole shim thing. Team ZR-1 what did you make your shim out of? And does the shim just sit in the little dimple at the top of the shaft? If so, then I assume the shaft it-self does not move and the pressure of the return spring holds the shim in place right. TIA.

Charlie.
Reply
Old Oct 27, 2002 | 09:56 AM
  #11  
Joe Kizzire's Avatar
Resident Grump
 
Joined: Nov 2001
Posts: 1,050
Likes: 0
From: Walker County Alabama
Default Re: modifying stock thermostat....

I've modded a couple t-stats and the best shim is a daisy bb.... .177 opens the t-stat about 165 degrees and the engine will run around 172 in 72 degree air.
Reply
Old Oct 27, 2002 | 06:15 PM
  #12  
CAT3's Avatar
Restricted User
iTrader: (9)
 
Joined: Sep 2002
Posts: 7,603
Likes: 0
From: Sierra Vista, AZ
Default Re: modifying stock thermostat....

Let's try this again. The shim is held in place by shaft which is exerting spring pressure right? So the shaft itself does not move, and the shim has no real way to become dislodged? Thanks for the BB tip, what ingenuity.

Charlie.
Reply




All times are GMT -5. The time now is 10:11 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