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> How fast can you run up 2nd gear on a Th350??
User Name
Password
lost password?   |   register now

Thread: How fast can you run up 2nd gear on a Th350?? 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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)
07-22-2003 07:23 AM
indy_85stariones 73 Chevelle SS...stock...stock...stock...
Shifts took place around 4100 rpm...
1st gear at full throttle.....shifts @40-45mph
2nd gear at full throttle..shifts @70-75mph
350/350/?:?? gear/G70-14 Firestone Wide-Oval Tires

69 Ford LTD...stock...stock...stock...
Did not have tach...
1st gear at full throttle.....shifts@50mph
2nd gear at full throttle.....shifts@90mph
429CID4V/???/?:??/???? tires
07-20-2003 10:33 PM
Sandflea427SS 72 Monte Carlo...stock...stock...stock...
1st gear at full throttle.....shifts @50...
2nd gear at full throttle..shifts @80
350/350/3:08 gear/275/60/15
07-20-2003 12:29 PM
Rubberman2003 Well that would help if i need to tune here thats for sure, thanks for the info What i was wondering was...if you have or have ever been in a car with a Th350..what MPH it shifted at, and what the set up was. Also like if you were going XXXX MPH and mash it would it kick down to second? Ex: you can go around 80 and still get the tranny to kick down to second..ectect
07-20-2003 11:57 AM
Jason I've tuned several th350's. I didn't plan on writing a book but I guess if I took notes it would be of some use to you.

What needs to be done is a test drive to see what the trans does. If it shifts too early at wot lighter governor weights need to be installed, then test drive again. If it shifts too late at wot the weights need to be made heavier. With each weight change a spring change might be necessary and the downshift rpm may change.
Changing spring tensions effect part throttle shifts and can seperate shifts or bring them closer together.

You might need to adjust the vacuum modulator because different governor weights and springs may have some effect on part throttle shifts even though the wot shifts are where you want them.

No one can give you specific information on exactly what to install and have you go out and see your trans shift exactly as promised, there are way too many variables.

I'm sure it could be done if someone tested everything with every possible rear gear and tire size combination And recorded the spring tensions of each shift valve spring, governor spring and weight for each combination.

It's far easier to just dial it in yourself. It can be done in a few hours as long as you have a good stretch or road to test it on, and a good selection of parts.Not sure if i understand the question now that I think about it, but here's how i answered it.
07-20-2003 10:46 AM
Rubberman2003
How fast can you run up 2nd gear on a Th350??

Im just wonder (anyone that has a TH350) wht there set up was, and how fast they would be going at WOT and the car would shift into 3rd, and how fast you could floor it and get it to kick down.. I need to know your set up to please.

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 05:59 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.