drilled 195 tstat - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 09-23-2007, 05:43 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2006
Location: Chicago, IL
Posts: 496
Thanks: 0
Thanked 0 Times in 0 Posts
trigga_b is on a distinguished road
Default drilled 195 tstat

Has anyone ever tried running a drilled 195 t-stat? I have a 180 in my car already and when the switch for the fan override performance seems to drop. When I let my car heat up 200 or a notch over it runs better than having the fans on . I personally wouldn't think that running a drill 195 would hurt in the winter time neither.
trigga_b is offline   Reply With Quote
Old 09-24-2007, 03:03 AM   #2
Senior Member
True Car Nut
 
Join Date: Jun 2003
Location: Climax Springs, Missouri
Posts: 2,493
Thanks: 0
Thanked 0 Times in 0 Posts
LittleHoov is on a distinguished road
Default

Thats.....odd, your car should perform better the cooler the engine is, to a point anyway.

Perhaps theres another issue?
LittleHoov is offline   Reply With Quote
Old 09-24-2007, 05:45 AM   #3
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2006
Location: Chicago, IL
Posts: 496
Thanks: 0
Thanked 0 Times in 0 Posts
trigga_b is on a distinguished road
Default

I'm not trying to make this a maintenance post but yea I just found out the day before yesterday when I click it off. My gas mileage improved also.
trigga_b is offline   Reply With Quote
Old 09-24-2007, 08:32 AM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Right, our engines were designed to run hotter and be more efficient at higher temps. Why drill? Put in a 185 or 195 and go with it.
BillBoost37 is offline   Reply With Quote
Old 09-24-2007, 04:06 PM   #5
Senior Member
Posts like a Northstar
 
Join Date: Mar 2007
Location: Minneapolis, MN
Posts: 509
Thanks: 0
Thanked 0 Times in 0 Posts
Barry is on a distinguished road
Default

What'* the advantage/purpose of drilling the t-stat anyway?
Barry is offline   Reply With Quote
Old 09-24-2007, 06:06 PM   #6
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: May 2006
Location: Chicago, IL
Posts: 496
Thanks: 0
Thanked 0 Times in 0 Posts
trigga_b is on a distinguished road
Default

If I remember correctly, to keep the car cooler by letting a little coolant drip pass the thermostat. The 2 holes are suppose to be 5/16 until you get into heavy modding.
trigga_b is offline   Reply With Quote
Old 09-24-2007, 06:12 PM   #7
Senior Member
True Car Nut
 
Join Date: Jun 2004
Location: Rochester, NY (college)
Posts: 6,182
Thanks: 0
Thanked 0 Times in 0 Posts
corvettecrazy is on a distinguished road
Default

I had a drilled 195 when I had my bonneville.

My buick currently has a drilled 195.

I believe it not only helps the temps a bit but also makes bleeding/burping the engine of air easier.
corvettecrazy is offline   Reply With Quote
Old 09-25-2007, 01:07 PM   #8
Senior Member
True Car Nut
 
Join Date: Mar 2004
Location: Ames, Iowa
Posts: 3,066
Thanks: 0
Thanked 1 Time in 1 Post
bill buttermore is on a distinguished road
Default

My primary reason for recommending that thermostats be drilled (I drill my winter 195 and my summer 180) is to provide a pathway for air to bleed out of the engine. I set the drilled hole at the highest (12:00 O'Clock) position in the housing to facilitate the egress of air to the upper radiator hose. These engines trap a lot of air when filled in a "conventional manner." That'* why we documented this procedure for filling. http://www.bonnevilleclub.com/forum/...=article&k=100
bill buttermore is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Another T-stat Question - Drilled 195*??? lglarum 1992-1999 6 03-13-2007 11:45 PM
Thermostat change 180* or 195* Andy King 1992-1999 10 12-21-2003 06:13 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
195 to 180 thermostat anthonyv62 General GM Chat 2 04-18-2003 07:15 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 01:40 PM.


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.