Another T-stat Question - Drilled 195*??? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-07-2007, 02:23 PM   #1
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Feb 2004
Location: Fargo, ND
Posts: 685
Thanks: 0
Thanked 0 Times in 0 Posts
lglarum is on a distinguished road
Default Another T-stat Question - Drilled 195*???

Would drilling a 195* thermostat have any benefit the same as a drilled 180* would? I dont want to put one in that will have me sittin in an icebox in the winter. I have a drilled 180* from ZZP that I havent installed due to this same reason. So the choices are a drilled 195* or a non-drilled 180*??? Which one???
lglarum is offline   Reply With Quote
Old 03-07-2007, 04:45 PM   #2
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

I have a drilled (one 1/16th hole) 180* thermostat in my car without having any temperature issues, even in sub-zero weather. The main reason for drilling is to help alleviate problems with air pockets.

The are proponents for each side. My preference would be for the slightly drilled 180.
Archon is offline   Reply With Quote
Old 03-13-2007, 01:06 PM   #3
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Feb 2004
Location: Fargo, ND
Posts: 685
Thanks: 0
Thanked 0 Times in 0 Posts
lglarum is on a distinguished road
Default

I'm just wondering because I have a drilled 180* from ZZP with two holes in it and I was thinking that the two holes may be overkill for up here. Maybe not so much now with spring/summer coming up though. I also have a 195* from AutoZone that I could drill if that would be the better option.
lglarum is offline   Reply With Quote
Old 03-13-2007, 02:15 PM   #4
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Your autozone stat won't flow as much as a ZZP or INTENSE Tstat when open.
These thermostats flow about 10% more than the STANT'* and almost all others on the market.

The opening is bigger.

http://www.bonnevilleclub.com/forum/...xtreme+changes
willwren is offline   Reply With Quote
Old 03-13-2007, 05:58 PM   #5
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Feb 2004
Location: Fargo, ND
Posts: 685
Thanks: 0
Thanked 0 Times in 0 Posts
lglarum is on a distinguished road
Default

I put the drilled 180* in. I can always change it later.
lglarum is offline   Reply With Quote
Old 03-13-2007, 10:30 PM   #6
Senior Member
Posts like a Corvette
 
Ol' Timer's Avatar
 
Join Date: Oct 2002
Location: New Jersey - Most of Our Elected Officials Have Not Been Indicted
Posts: 1,483
Thanks: 0
Thanked 0 Times in 0 Posts
Ol' Timer is on a distinguished road
Default

Quote:
Originally Posted by Archon
The main reason for drilling is to help alleviate problems with air pockets.
The last time I installed a 195* thermo in my old Olds it had this thinga-ma-bobbee on it (shown below on the top front of the thermostat)

Now this isn't the thermo I installed, but the top part is similar. Would this be considered a "Slightly Drilled" thermostat? I like the design because it does help with getting rid of the air pocket(*) after you change the coolant.
Ol' Timer is offline   Reply With Quote
Old 03-13-2007, 11:45 PM   #7
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Feb 2004
Location: Fargo, ND
Posts: 685
Thanks: 0
Thanked 0 Times in 0 Posts
lglarum is on a distinguished road
Default

Here'* the two t-stats that I have. The one on the left is the 195* and the other the drilled 180* from ZZP. Ol' Timer, you can see the holes that are drilled in the flange of the t-stat on the right.

lglarum is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
T-stat maintaining 201 not 195 kanecats Buick 5 05-16-2012 03:03 PM
drilled 195 tstat trigga_b General GM Chat 7 09-25-2007 01:07 PM
180 t-stat/180 Fan Turn On - Running 195-205*? TommyGloves 2000-2005 9 05-08-2006 06:37 PM
Anyone still running a 195 T-stat? anthonyv62 General GM Chat 20 07-31-2003 04:09 PM
180* T-stat running 195* Pimpwagon Performance, Brainstorming & Tuning 10 06-04-2003 07:57 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:49 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.