O.K., What should I do with the modulator line?? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 06-25-2003, 02:31 PM
Stinky's Avatar
Suspended
 
Join Date: Jun 2003
Location: St. Louis, MO
Age: 36
Posts: 128
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
O.K., What should I do with the modulator line??

The modulator valve line is sitting with nowhere to go. I put a 750 Holley carb on my car. Did i miss something or am I missing something on the car??

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 06-25-2003, 06:03 PM
aka Duke of URL
 
Last wiki edit: Finding vacuum leaks Last photo:
Join Date: Oct 2001
Location: Rockville, MD
Posts: 4,821
Wiki Edits: 1

Thanks: 0
Thanked 0 Times in 0 Posts
Question

I assume you are working on a PONTIAC and went from a ROCHESTER to a HOLLEY? And there is no manifold port on the HOLLEY?

You will need to source manifold vacuum at the carb, spacer or intake manifold to have the modulator valve work correctly.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-26-2003, 07:46 AM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 76
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
your post wasn`t very clear on details,where was it connected
before?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 06-26-2003, 08:25 AM
Stinky's Avatar
Suspended
 
Join Date: Jun 2003
Location: St. Louis, MO
Age: 36
Posts: 128
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Doh,
On the carb somewhere
I have several unused holes that I plugged on the Edebrock Performer intake. I dont know, but I would assume this pulls the same vac pressure. Would it be wise to throw a "nipple" type air fitting on and put the vac line from the modulator valve on that??

Last edited by Stinky; 06-26-2003 at 01:10 PM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 06-26-2003, 01:22 PM
Rubberman2003's Avatar
Member
 
Last photo:
Join Date: Sep 2002
Location: Ohio
Age: 29
Posts: 806
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
On my car there is a T shaped plastic piece to the left of the engine near the fire wall, mine goes into there and plugs into the tranny. 84 Z28...350 motor
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 06-27-2003, 04:33 AM
Honorary Redneck
 
Last photo:
Join Date: Nov 2002
Location: England
Posts: 194
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally posted by Stinky
Doh,
On the carb somewhere
I have several unused holes that I plugged on the Edebrock Performer intake. I dont know, but I would assume this pulls the same vac pressure. Would it be wise to throw a "nipple" type air fitting on and put the vac line from the modulator valve on that??
I recently put a performer intake and edelbrock 600cfm on my chevy, same problem (used to be a rochester), I did exactly what you describe, I used the hole at the back left of the intake
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 06-27-2003, 11:23 AM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 76
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
It should go to one of the holes on the intake.On chevys it`s right in front of the dist. With power brakes there is a t fitting there; hth;

Troy
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last 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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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



All times are GMT -6. The time now is 12:00 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.