FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

FYI Ford, Classic Mustang Tech Discussion » 65 fastback runs hot » 11/24/2015 10:26 PM

65fastback
Replies: 25

Go to post

All.
After reading all the replies I'm really leaning towards the fan itself. Now that I think of it, I've never used another fan other than the electric. I didn't do this because I brought the fan into my local mustang shop and they told me that it was the "most aggressive" fan for my car. I've been researching today and have come across 3 fans that were listed as being used on a '66 with AC. C60E-C was for non smog, C6ZE-A was for smog and C60E-G was the replacement for the two and used from '66-'69. They are 7 blade, 17 1/2" and clutch style. Any thoughts? Are these available?

Thanks.

John

FYI Ford, Classic Mustang Tech Discussion » 65 fastback runs hot » 11/24/2015 9:58 AM

65fastback
Replies: 25

Go to post

Ok.. There must be a post min for me to be able to post pictures. I can get my picture loaded, but it won't post. Hopefully a few more posts by me will do the trick.

John

FYI Ford, Classic Mustang Tech Discussion » 65 fastback runs hot » 11/23/2015 9:41 PM

65fastback
Replies: 25

Go to post

I'm still not able to post pictures. Any suggestions?

Thanks.

John

FYI Ford, Classic Mustang Tech Discussion » 65 fastback runs hot » 11/23/2015 9:15 PM

65fastback
Replies: 25

Go to post

Hello again and thanks again for all the replies. MS and someone else made the point that maybe I don't have the right pitch on my fan. What would the correct fan pitch be? I haven't seen pitch listed on any of the fans that I've been looking at.

Thanks.

John

FYI Ford, Classic Mustang Tech Discussion » 65 fastback runs hot » 11/23/2015 2:10 AM

65fastback
Replies: 25

Go to post

All.
First, thank you to all that have replied, this is an amazing site with an amazing knowledge base. Ok, let me answer some questions asked. This motor is a ford racing crate 306. 340 hp and it's standard rotation water pump and fan. I'm not sure what the pitch of the fan blades are but it is the 17" steel 6 blade fan that is sold at all mustang stores and summit. Very popular. I've been told that it is the most aggressive fan out there for this application. The radiator is a northern aluminum 2 core (1" core's). It is stock size with inlet and discharge both on the passenger side. The head gaskets are on correctly.  The current water pump is a standard flow aluminum. I tried a high flow aluminum before and that didn't help. 180 stat. My temp readings are from a analog temp gauge. I've had two different types and both have read the same. I've also used a IR gun all over the motor as well as a cooking thermometer in the neck of the radiatior and all are within 1-2 degrees of the temp gauge in the car. The cap is a brand new 13 lbs. I've tried several different caps with no change. I've contemplated the 24" radiator swap, but have decided against it because I don't believe more coolant volume is the issue. i've also thought about the Shelby front valance, but just haven't pulled the trigger. I'd like to post a pic of my motor, but can't figure out how to do it. Any advice on that would be great too.

Hope I've added some helpful info and thanks again for all your help.

John

FYI Ford, Classic Mustang Tech Discussion » 65 fastback runs hot » 11/22/2015 7:18 PM

65fastback
Replies: 25

Go to post

My temps during the hotter months will go past 230 if I don't keep moving, 180-190 with ac on while driving.. I've used 2 different temp gauges to rule out a bad gauge. I've had the fan all the way in the shroud, 50/50, 60/40 and on and on with no success. The radiator is sealed between the support and core and when the shroud was installed, it was sealed pretty well as well.
Thanks for your help.

John

FYI Ford, Classic Mustang Tech Discussion » 65 fastback runs hot » 11/22/2015 6:06 PM

65fastback
Replies: 25

Go to post

I've had two motors ( currently a ford racing crate 306 ), 3 radiators and a dozen different thermostats/water pumps. I've had different carbs, plugs, distributors, etc, etc.. Basically have changed everything from when I purchased the car 9 years ago. Two different radiator shops told me that I'm just not getting enough "airflow" through the radiator at idle and slow speeds. This would make sense since it runs normal when driving over 35 mph. Summer months are the toughest. If I put a piece of paper on the radiator it just barely sticks. Other cars I've tried this on, the paper gets "sucked" to the radiator and has some good resistance when removing. These cars seem to run normal temps. I'm convinced I'm just not getting the airflow needed. The after market shrouds I've used and fan positioning don't seem to help either. My fan currently is mechanical, steel 6 blade, 17". It's 1 1/4" from the blade tip to radiator core. I don't think moving it closer will do much. I had a derale electric fan on there, but had the opposite problem. Ran hotter while driving and a bit cooler at idle. It seems like the electric was acting like a dam while at driving speeds, plus I don't believe that fan had the CFM needed. I currently have no fan shroud installed. My crank pulley is a 3 groove with the water pump/fan running off the middle groove and that being roughly 6 1/2" dia., the fan/pump pulley is roughly 5 3/4". Timing is 15btc and total is 33. I have a pertronix flamethrower distributor with vacuum advance that is currently connected to manifold vacuum. No difference between manifold or ported, however, motor seems to run better on manifold.  Do you have any suggestions?

Thanks.

John

Board footera


REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.