Holley Coolant Temp Sensor Fitment - Team Camaro Tech
EFI in your modern Classic EFI conversions in early Camaros

 2Likes
  • 2 Post By pittpens24
 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old Mar 10th, 20, 09:23 PM Thread Starter
Team Member
Steve
 
Join Date: Nov 2005
Location: East SF Bay Area
Posts: 1,777
Garage
Holley Coolant Temp Sensor Fitment

Installed my CTS tonight and am not happy with the clearance between the harness and the header. As I see it I have a couple of options:

1) Insulate the wiring with a wrap, etc
2) find a shorter adapter fitting
3) find a CTS that is 1/2" NPT instead of 3/8 NPT.

Anyone have a good solution or recommendation on a sensor or "shorter fitting"

Steve
1968 that started life and a 6 banger with a PG. Now it's a 350 with a TKO600, Moser 12 bolt, Speedtech LCA/UCA, ATS Tall Spindles, Hotchkis Springs, Forgeline ZX3P, C5 (Kore3) brakes with other cool stuff from Ron Davis, Vintage Air and soon to be Terminator EFI.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
eville is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old Mar 11th, 20, 03:10 AM
Senior Tech
Bryan
 
Join Date: Aug 2002
Location: Albuquerque, NM
Posts: 419
Re: Holley Coolant Temp Sensor Fitment

Do you have a spot available up on top by your thermostat? I didnít so I used a 3/8Ē brass tee to put two sensors in the one spot by my thermostat.

1968 Camaro, 383 with Dart Pro 1 aluminum heads and roller cam, Holley Sniper EFI with Dual Sync distributor, Muncie M21 4-speed transmission, 3.73 12-bolt Eaton posi differential.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Bry68 is online now  
post #3 of 10 (permalink) Old Mar 11th, 20, 03:19 AM
Gold Lifetime Member
Greg
 
pittpens24's Avatar
 
Join Date: Jul 2015
Location: New Jersey
Posts: 1,956
Garage
Re: Holley Coolant Temp Sensor Fitment

Here ya go!
https://www.jegs.com/i/Meziere/680/W...SABEgIkhvD_BwE
dhutton and LeeC like this.

'68 Camaro with RS conversion
Moser 9" with 4:11
Martz Chassis 4-link and Front Sub-frame
Tremec T-56 Magnum 6 speed
572 BB - CM Engines
Wilwood 6 piston front and 4 piston rear disc
pittpens24 is offline  
 
post #4 of 10 (permalink) Old Mar 11th, 20, 07:08 PM
Senior Tech
Simon
 
Join Date: Jul 2009
Location: Toronto, Canada
Posts: 505
Garage
Re: Holley Coolant Temp Sensor Fitment

What about using a boot protector like this one, I use a few to protect my spark plug wire boots from getting scorched from my headers and the wires down to the solenoid.
https://www.summitracing.com/int/parts/dei-010711
slazisme is offline  
post #5 of 10 (permalink) Old Mar 11th, 20, 11:21 PM Thread Starter
Team Member
Steve
 
Join Date: Nov 2005
Location: East SF Bay Area
Posts: 1,777
Garage
Re: Holley Coolant Temp Sensor Fitment

I'm going to try a "close" bushing. I ordered this from Amazon today.
Looks like it might give me 1/4 inch or extra.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Steve
1968 that started life and a 6 banger with a PG. Now it's a 350 with a TKO600, Moser 12 bolt, Speedtech LCA/UCA, ATS Tall Spindles, Hotchkis Springs, Forgeline ZX3P, C5 (Kore3) brakes with other cool stuff from Ron Davis, Vintage Air and soon to be Terminator EFI.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
eville is offline  
post #6 of 10 (permalink) Old Mar 12th, 20, 05:55 AM
Tech Team
Corky
 
Join Date: May 2006
Location: Ringgold, GA
Posts: 35
Re: Holley Coolant Temp Sensor Fitment

Hopefully that will get you the needed clearance. What intake manifold do you have? Most aftermarkets will be tapped with a 3/8" fitting on top of the water cross over. When I installed my EFI, I used the top fitting for the CTS and the one you are using for the stock sensor.

Corky
CorkyE is offline  
post #7 of 10 (permalink) Old Mar 12th, 20, 10:32 AM Thread Starter
Team Member
Steve
 
Join Date: Nov 2005
Location: East SF Bay Area
Posts: 1,777
Garage
Re: Holley Coolant Temp Sensor Fitment

It's an RPM air-gap. I had heard people saying the intake ports might not be good enough for the CTS. I guess I can try it in the rear port of the intake.

Steve
1968 that started life and a 6 banger with a PG. Now it's a 350 with a TKO600, Moser 12 bolt, Speedtech LCA/UCA, ATS Tall Spindles, Hotchkis Springs, Forgeline ZX3P, C5 (Kore3) brakes with other cool stuff from Ron Davis, Vintage Air and soon to be Terminator EFI.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
eville is offline  
post #8 of 10 (permalink) Old Mar 12th, 20, 04:04 PM
Senior Tech
Bryan
 
Join Date: Aug 2002
Location: Albuquerque, NM
Posts: 419
Re: Holley Coolant Temp Sensor Fitment

I also have an RPM Air Gap. My temps in the back of the manifold were 15-20 degrees cooler because the coolant was just coming from the radiator. Like I said before, I used a 3/8Ē NPT street tee to put two sensors in the front, right before the coolant goes back into the radiator. Something like this, but you can probably find something cheaper: https://www.oreillyauto.com/detail/b...reet+tee&pos=1

1968 Camaro, 383 with Dart Pro 1 aluminum heads and roller cam, Holley Sniper EFI with Dual Sync distributor, Muncie M21 4-speed transmission, 3.73 12-bolt Eaton posi differential.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Bry68 is online now  
post #9 of 10 (permalink) Old Mar 16th, 20, 09:37 PM Thread Starter
Team Member
Steve
 
Join Date: Nov 2005
Location: East SF Bay Area
Posts: 1,777
Garage
Re: Holley Coolant Temp Sensor Fitment

Well, for now I decided to run it in the front of the manifold. Once I get things dialed in I'll try moving it to the rear and see what happens.


Steve
1968 that started life and a 6 banger with a PG. Now it's a 350 with a TKO600, Moser 12 bolt, Speedtech LCA/UCA, ATS Tall Spindles, Hotchkis Springs, Forgeline ZX3P, C5 (Kore3) brakes with other cool stuff from Ron Davis, Vintage Air and soon to be Terminator EFI.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
eville is offline  
post #10 of 10 (permalink) Old Mar 16th, 20, 11:18 PM
Gold Lifetime Member
Milt
 
Milt's 68 SS/RS 396's Avatar
 
Join Date: Aug 2006
Location: Las Vegas, NV
Posts: 825
Garage
Re: Holley Coolant Temp Sensor Fitment

Doesn't your intake have a sensor location by the water neck? That's where I put mine.
Attached Thumbnails
Click image for larger version

Name:	IMG_7172.jpg
Views:	18
Size:	422.0 KB
ID:	233477  

Go big, or stay Home!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Milt's 68 SS/RS 396 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech 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.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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