64 389 normal operating temperature range - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 10-10-2013, 04:19 PM Thread Starter
 
Join Date: Oct 2013
Location: Ocala, Florida
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
64 389 normal operating temperature range

Have a 64 GTO (since 1968) that was mostly rebuilt in the early 1990's and has been in storage for the last 6 years.

It has been started on a regular basis and has about 3000 miles on the engine.

It's been so long since I've been on the road, I'm not sure what to expect for a engine normal operating range. Any thoughts? Just a 389 AFB.

Also, you were to add another gage to a tach, temp, and oil pressure what would it be? And why. Voltage?

Thanks
gtosixfour is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 10-10-2013, 05:11 PM
Former Moderator
 
ALKYGTO's Avatar
 
Join Date: Mar 2010
Location: Wentzville, Mo.
Posts: 2,893
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 15 Post(s)
Garage
I would say anywhere in the 180 to 220 range for normal operating temps. Everyone is scared when the gauge hits 200 but that is fine. Anything over 220 is getting hot and you should probably run a 193 or 200 F thermostat. I always drill a couple of 1/8" holes in mine to let the air bleed out.

As far as the other gauge to add.....how about a boost gauge?

Vacuum, trans temp (automatic),Amps.....One of my favorite cars I had was my Buick Riviera....two gauges; speedometer and fuel level; that was it.

Too many gauges can ruin the driving experience IMO. My car has a 5" Tach with shift light, Amps, Fuel pressure, Fuel level, Oil Pressure, Coolant Temp, Boost....It's like driving the Space Shuttle. I hate having to monitor all that and would rather just drive it.
ALKYGTO is offline  
post #3 of 7 (permalink) Old 10-10-2013, 05:36 PM Thread Starter
 
Join Date: Oct 2013
Location: Ocala, Florida
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for the info.

Not familiar with a boost gage but I'll look it up.

Basically running with a 4 speed. Also got rid of the clutch fan years ago and using a 6 blade racing fan and a shroud. This car has Standard steering and brakes w/ no AC.

Is there any advantage to using a 180-degree thermostat versus the 190+ standard thermostat? I know it would open earlier but does it run the engine cooler?
gtosixfour is offline  
 
post #4 of 7 (permalink) Old 10-11-2013, 02:14 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,491
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
What Alky said. 180-220 is normal. I run 160 'stats in my GTO's and they run 180-200. If the cooling system is 100%, it can run at T-stat temps, but usually due to load and thermal build-up, they run a tad hotter. Factory type clutch fans are superior to aftermarket fans for a street driven car. They're less noisy and they cool much better.
geeteeohguy is online now  
post #5 of 7 (permalink) Old 10-11-2013, 03:34 PM
Super Moderator
 
BearGFR's Avatar
 
Join Date: Aug 2008
Location: Springtown, TX
Posts: 5,737
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 122 Post(s)
Garage
Quote:
Originally Posted by gtosixfour View Post
Also got rid of the clutch fan years ago and using a 6 blade racing fan ....
Which was probably a mistake on your part. The purpose of the fan clutch is to keep the fan spinning at the rpm where it is most efficient at moving air. If you spin a fan faster than that, it will move less air and do little more than just rob power and make noise.

Bear

BearGFR
Springtown, TEXAS
BearGFR is offline  
post #6 of 7 (permalink) Old 10-11-2013, 05:03 PM
 
rickm's Avatar
 
Join Date: Feb 2012
Location: new york state
Posts: 633
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
flexalite makes a rigid fan that with correct spacer and a shroud, does its job well at keeping my engine cool. better than any fan clutch set-up. stop n go, or highway.
rickm is offline  
post #7 of 7 (permalink) Old 10-11-2013, 06:24 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,491
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
I had one of those on my '65 for a few years. Worked just fine, but my car sounded like a Mercedes Diesel going down the road. My factory clutch set-up cools the same or better and makes no noise. Whatever works for you.
geeteeohguy is online now  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
High temperature mdilello Engine Discussions 2 04-05-2016 04:56 PM
Is a warm light switch knob normal operating?? Andy65GTO 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 5 01-31-2012 12:02 AM
Date Range? MichaelG 1964-1974 Tempest, Lemans & GTO General Discussion 2 10-21-2010 05:49 AM
Rear axle operating temp? Rukee 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions. 7 08-15-2008 09:56 PM

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome