rad/trans cooler question - 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> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 06-07-2005, 11:16 AM
Toyman's Avatar
Member
 
Join Date: Aug 2003
Location: USA
Posts: 108
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
rad/trans cooler question

I am considering getting a 2 row Griffin Aluminum radiator. (19 x 31, 1" tubes) I currently have a stock SBC 2 core radiator in my 70 Chevelle (355 sbc). It works OK, but if I'm working the engine on a long hill, the temp creeps up to about 210*. I am going to switch out my T-stat from a 160 to a 180 also. I am running a Flex-a-lite dual electric fan, and have an 11"x 12" tranny cooler in phase with the radiator tranny cooler. The Al radiator doesn't have a tranny cooler in it, so I am going to run it solely thru the seperate cooler. Tranny temps rarely creep over 180*. I put more miles on the street than at the track. I would like to make this change in the hopes that it will run cooler on the street, and track. I also have a virgin 400 sbc that I am going to build in the future, and hope that this setup will work well with it also. Opinions, similar experiences, and helpful comments welcome.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 06-07-2005, 01:10 PM
killerformula's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Carburetor
Last journal entry: Clean up
Last photo:
Join Date: Oct 2003
Location: Northeast
Age: 34
Posts: 3,485
Wiki Edits: 3

Thanks: 13
Thanked 27 Times in 18 Posts
if you have that big of a transmission cooler, I wouldn't run it through the radiator at all. I think you'll see that your overall operating temps for your motor will drop when you're not pushing that hot trans fluid through the radiator. Try just hooking the trans cooler up by itself for a bit, and see how that works-

K
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-07-2005, 01:21 PM
Toyman's Avatar
Member
 
Join Date: Aug 2003
Location: USA
Posts: 108
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That's a good point, but I just pulled the motor & tore it down on Saturday. Always getting the cart before the horse I'm putting a new cam in and considering milling the heads a bit for some additional compression. I figured that this would be the time to make the change since everything is out. Spoke with Summit Tech, & they said 30%+ better cooling going from stock to the Griffin Aluminum. Sound reasonable?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 06-07-2005, 01:48 PM
killerformula's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Carburetor
Last journal entry: Clean up
Last photo:
Join Date: Oct 2003
Location: Northeast
Age: 34
Posts: 3,485
Wiki Edits: 3

Thanks: 13
Thanked 27 Times in 18 Posts
sounds reasonable, but you might not need it. I run a ~425 horse 10.5:1 388 stroker in my 2nd Gen Fbody and I don't have problems with the stock rado. I use an external trans cooler and my operating temps are only about 170 degrees.

Try your radiator first. Heck, the 20 minutes it would take to remove it if its not all that you wanted after the trans cooler swap is worth the 300 bucks that you'd pay for the aluminum unit if you didn't need it. Furthermore, aluminum does not cool as well as copper (its a little more durable material and saves weight) so the aluminum radiators are sometimes a LOT bigger than the stock, copper unit, and they're sometimes a big PIA to get to fit right...

K
Reply With Quote Quick reply to this message

Recent Engine 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
T400 cooler question Miket Transmission - Rearend 1 04-07-2005 12:49 PM
radiator/tranny cooler question 280zxWith305 Engine 4 03-07-2005 09:10 PM
tranny cooler question dawg Transmission - Rearend 6 01-16-2005 08:01 AM
Hotrodders Guidelines -- READ ME Jon Suspension - Brakes - Steering 0 06-14-2003 05:03 PM
Tranny cooler question heavychevy Transmission - Rearend 11 03-03-2003 10:23 PM


All times are GMT -6. The time now is 09:08 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.