Holley EFI Coolant temp location - Team Camaro Tech
EFI in your modern Classic EFI conversions in early Camaros

 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old Oct 18th, 12, 06:17 PM Thread Starter
Senior Tech
Timothy
 
Join Date: Sep 2007
Location: San Antonio TX
Posts: 1,804
Holley EFI Coolant temp location

Im a newb to EFI, among other things
Will the passanger / rear coolant passage on a Edelbrock RPM air gap manifold yield correct temperatures for the computer?



My 69 RS/SS 396 Project -
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


"I may be dumb but I aint stupid"
Microgiant is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old Oct 18th, 12, 06:41 PM
Senior Tech
Steiner
 
Join Date: Mar 2009
Location: Lyman, SC
Posts: 8,348
Re: Holley EFI Coolant temp location

It's not advised. That port is a deadhead so there is not constant coolant flow. It think it is designed so that you could install a crossover pipe between the two rear ports. I would put it in the head if the harness will reach. I run mine in the front intake with a bushing (1/2 to 3/8 NPT). The only thing I don't like about it is that the intake warms a lot slower than the head/combustion chamber so setting up my cold fuel enrichment was a pain. My cold fuel settings affect the entire fuel map so when they were right to get it warming up at idle they were way too rich if trying to drive off so it would rich misfire like a beeyotch. But, on my unit you can change all that stuff it just took time and I had to figure in some offset and have all extra fuel kick out by the time the intake came up to 100 degrees instead of 140 degrees which was stock setup. Sorry, just rambling.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'69 Camaro Beater-SFT 327-M20-Moser 4.10-sold
'02 Z/28 vert-stock-sold and totaled
Steiner is offline  
post #3 of 9 (permalink) Old Oct 19th, 12, 04:38 PM Thread Starter
Senior Tech
Timothy
 
Join Date: Sep 2007
Location: San Antonio TX
Posts: 1,804
Re: Holley EFI Coolant temp location

I may also have to customize my fuel map beacuse I dont beleive my Dart Pro 1 BBC heads have a provision for a temperature sensor.

Any other ideas?

Last edited by Microgiant; Oct 19th, 12 at 04:59 PM.
Microgiant is offline  
 
post #4 of 9 (permalink) Old Oct 19th, 12, 05:44 PM
Senior Tech
Steiner
 
Join Date: Mar 2009
Location: Lyman, SC
Posts: 8,348
Re: Holley EFI Coolant temp location

That's all I got. You can try the rear port if you want or use a bushing for one of the front ports on the intake. Your EFI system may not have the issues that mine does. It's a combination of the intake warming up slower than the head and their programming for cold enrichment.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'69 Camaro Beater-SFT 327-M20-Moser 4.10-sold
'02 Z/28 vert-stock-sold and totaled
Steiner is offline  
post #5 of 9 (permalink) Old Nov 14th, 12, 06:41 PM Thread Starter
Senior Tech
Timothy
 
Join Date: Sep 2007
Location: San Antonio TX
Posts: 1,804
Re: Holley EFI Coolant temp location

I am using the front port for now. Ive seen a few other cludgey solutions. I have to have my laptop connected to see the temp but so far I have not exceeded 185. I really hate loosing the stock sensor even though its not digital. I will update if i figure something better out.
Microgiant is offline  
post #6 of 9 (permalink) Old Nov 14th, 12, 07:22 PM
Senior Tech
Steiner
 
Join Date: Mar 2009
Location: Lyman, SC
Posts: 8,348
Re: Holley EFI Coolant temp location

You can try one of those water necks with the NPT port in it to get your gauge back. Also Jags That Run can make a hose connector with NPT port that you could insert in one of your heater hoses if you still have a heater core. You'd have to ground it though. Details are here:
http://www.jagsthatrun.com/Pages/Par...sHoseTees.html

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'69 Camaro Beater-SFT 327-M20-Moser 4.10-sold
'02 Z/28 vert-stock-sold and totaled
Steiner is offline  
post #7 of 9 (permalink) Old Nov 15th, 12, 12:09 PM
Senior Tech
Tim
 
Join Date: Mar 2001
Location: Florida
Posts: 182
Re: Holley EFI Coolant temp location

If the rear port sits in coolant...I think it would have sufficent flow past whether it was a deadhead or not (ie the fluid doesn't sit in any one spot).

Actual engine temp isn't really critical...but tuning it to the appropriate warming curve is. The cylinder head would be ideal, but I use the intake port as well (front though).

Between the two-EFI and interior gauge, I would run the EFI to the front and the guage to the rear.

Good luck!

1969 Nova SS 350
EFI 407/TKO600/4.11
11.43 at 121 MPH

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
L48M20 is offline  
post #8 of 9 (permalink) Old Nov 21st, 12, 05:26 PM Thread Starter
Senior Tech
Timothy
 
Join Date: Sep 2007
Location: San Antonio TX
Posts: 1,804
Re: Holley EFI Coolant temp location

That sounds like a plan, Does anyone have a part number for a 1/4 NPT temperature guage?
Microgiant is offline  
post #9 of 9 (permalink) Old Nov 22nd, 12, 06:49 AM Thread Starter
Senior Tech
Timothy
 
Join Date: Sep 2007
Location: San Antonio TX
Posts: 1,804
Re: Holley EFI Coolant temp location

Actually I mean a 1/2"

My 69 RS/SS 396 Project -
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


"I may be dumb but I aint stupid"
Microgiant 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