Need advice on 200 4r mods - 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 02-01-2006, 05:42 PM
bnewsom's Avatar
Registered User
 

Last journal entry: more finished pics
Last photo:
Join Date: Apr 2004
Location: Alabama
Age: 54
Posts: 73
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Need advice on 200 4r mods

I picked up one from a friend in the salvage business. Fluid smells good but have not pulled the pan. Looking around it seems the popular mods for this trans are to put in a 13 vane pump, an "o" ring .500 valve and an "o" ring low reverse boost valve as well as the spring to firm up 1-2 shift. I'm assuming I won't have to build it but want to add some durability and firm up the shifts a bit. Any advice from the experts is more than welcome. This will be going behind a slightly warmed up Cadillac 425 in a 52 Chevy.
Thanks,
Bob

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-02-2006, 02:59 PM
thewrongshop@yahoo.com
 
Last photo:
Join Date: Oct 2004
Location: New Jersey
Age: 63
Posts: 206
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
I'm no expert but the man you might want to get the info from is Crolsey .
I have a 200R4 in my 84 van behind a 6.5 diesel after 200,000 miles it was in need of a REBUILD. Adding nothing but some slight upgraded hard parts and a few other odd's and end's it's working fine. But ask the man who knows.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-02-2006, 03:19 PM
bnewsom's Avatar
Registered User
 

Last journal entry: more finished pics
Last photo:
Join Date: Apr 2004
Location: Alabama
Age: 54
Posts: 73
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the info. Does anybody know if I will be screwing up putting these parts in?
Bob
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-02-2006, 03:49 PM
jakeshoe's Avatar
Member
 
Last photo:
Join Date: Dec 2004
Location: Texas
Age: 38
Posts: 613
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
200-4Rs have a few known weak points.

On even a stock rebuild I would use:
Hardened Stator shaft, sun shell. Neither is expensive and both are failure prone.
An upgraded 2nd gear band. Alto Wide Red Eagle.

10 vane pump is my preference. I like it more than a 13 vane. The additional vanes actually take up space and cut volume.

Upgraded TV Boost valves.

Hardened pump rings.

From there:
Any performance upgrades will require at a minimum a Gran National Servo or even better a Fairbanks/ Superior piece.
A valve body kit.
CKPerformance can provide both.

Next,
The forward drum is a known weak point and a billet unit is $400, but if you are making say 400+ HP I would definitely upgrade.

I like to dual feed the direct clutches which necessitates the forward drum.
I also add a 3rd OD clutch.
I like to use Alto reds in the direct drum, stock tans everywhere else, with stock type steels.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-03-2006, 03:23 PM
bnewsom's Avatar
Registered User
 

Last journal entry: more finished pics
Last photo:
Join Date: Apr 2004
Location: Alabama
Age: 54
Posts: 73
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the info. I wasn't planning on going too deep into it unless I had to. Supposedly this trans had been rebuilt not too long before the engine died and the owner junked the car. Fluid looks clean and no burnt odor so I'm assuming all is well until I pull the pan. If the pan looks good, I wanted to do a few things to make sure there is enough fluid pressure and flow to the right places to make this thing live awhile. Maybe I should ask what you would do under these circumstances with improving life and firming up shifts a little as the goal. I'm guesing my 425 make make 275-300 HP and and 350-400 TQ both under 4200 rpm. This is for a cruiser with no plans at all to race.
Thanks again. Bob
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:
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.




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


Similar Threads
Thread Thread Starter Forum Replies Last Post
information 200 4r turbo 350 700r4 william64 Transmission - Rearend 3 01-29-2006 07:47 PM
A note from the Mods. Everyone please read. Centerline Body - Exterior 0 12-29-2005 09:51 AM
200 4r torque converter help...... isleofwight Transmission - Rearend 3 07-05-2004 01:42 PM


All times are GMT -6. The time now is 12:31 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.