Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
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> TH-400 auto trans. "Vacum needs?"
User Name
Password
lost password?   |   register now

Thread: TH-400 auto trans. "Vacum needs?" Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
04-19-2006 09:00 PM
Crosley needs direct manifold vacuum. High at idle , low at WOT.
04-19-2006 08:45 PM
NASCAR314
TH-400 auto trans. "Vacum needs?"

With a Turbo 400 trans., running a vacum modulater, what type of vacum source is needed for proper operation?
I wish to increase line pressure under hard acceleration, as compared to low rpm's and idle situations.

Do you want 15 inches of vacum at idle, then drop to near zero at wide open throttle? or do you want the vacum to increase with wide open throttle?

I'm not real sure on what a vacum modulater does with these older automatic transmissions, or how it operates. I know on my late model cars, the computer does it all, TPS sensors, MAF's, ect...,

How do you know if a vacum modulator is working correctly?

Thanks,
Tom

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


All times are GMT -6. The time now is 07:40 PM.


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.