Club Cobra Keith Craft Motorsports  

Go Back   Club Cobra > Cobra Talk Areas > ALL COBRA TALK

MMG Superformance
Nevada Classics
MMG Superformance
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
Keith Craft Racing
Keith Craft Racing
MMG Superformance
December 2024
S M T W T F S
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31        

Kirkham Motorsports

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 10-24-2020, 12:54 PM
hauss's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2018
Location: Lodi, CA
Cobra Make, Engine: 427 manowar forged crank roller rockers . BIG CAM.
Posts: 785
Not Ranked     
Default what radiator?

I have a 427 stroker motor that runs warm. It will overheat on hot days if pushed. I have a backdraft with a 16" fan the radiator has plastic tanks with aluminum coils. Car is a 2013 model and that is all I know . What would a good replacement radiator be also should I change out the fan? My motor I am told is close to 600 hp .
Reply With Quote
  #2 (permalink)  
Old 10-24-2020, 03:55 PM
mln385's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2001
Cobra Make, Engine: BDR
Posts: 536
Not Ranked     
Default

Get BDR's expanded cooing radiator, have ad it for years on my Roush 427 and works great. That o Mishimoto makes one as well.
Reply With Quote
  #3 (permalink)  
Old 10-24-2020, 05:21 PM
cycleguy55's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2014
Location: White City, SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,908
Not Ranked     
Default

Quote:
Originally Posted by hauss View Post
I have a 427 stroker motor that runs warm. It will overheat on hot days if pushed. I have a backdraft with a 16" fan the radiator has plastic tanks with aluminum coils. Car is a 2013 model and that is all I know . What would a good replacement radiator be also should I change out the fan? My motor I am told is close to 600 hp .
Questions:
  1. What do you mean by "runs warm"?
  2. "Overheat"?
  3. What temperatures are you seeing?
  4. In traffic or at speed?
  5. Does it boil over or dump coolant?
  6. Mechanical or electric gauge?
  7. Where is the sending unit or tube measuring the temperature?
__________________
Brian
Reply With Quote
  #4 (permalink)  
Old 10-24-2020, 05:27 PM
twobjshelbys's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Las Vegas, NV
Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
Posts: 5,585
Not Ranked     
Default

Get the Fluidyne (I had a leak and got the same as Shelby uses from Jegs).
__________________
Cheers,
Tony
CSX4005LA
Reply With Quote
  #5 (permalink)  
Old 10-24-2020, 05:32 PM
hauss's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2018
Location: Lodi, CA
Cobra Make, Engine: 427 manowar forged crank roller rockers . BIG CAM.
Posts: 785
Not Ranked     
Default

Quote:
Originally Posted by twobjshelbys View Post
Get the Fluidyne (I had a leak and got the same as Shelby uses from Jegs).
which one? will it bolt right up?
Reply With Quote
  #6 (permalink)  
Old 10-24-2020, 05:37 PM
hauss's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2018
Location: Lodi, CA
Cobra Make, Engine: 427 manowar forged crank roller rockers . BIG CAM.
Posts: 785
Not Ranked     
Default

Quote:
Originally Posted by cycleguy55 View Post
Questions:
  1. What do you mean by "runs warm"?
  2. "Overheat"?
  3. What temperatures are you seeing?
  4. In traffic or at speed?
  5. Does it boil over or dump coolant?
  6. Mechanical or electric gauge?
  7. Where is the sending unit or tube measuring the temperature?
mtn driving under 40 mph 80o f boil over pushing it cruising 230o f
Reply With Quote
  #7 (permalink)  
Old 10-24-2020, 05:52 PM
twobjshelbys's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Las Vegas, NV
Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
Posts: 5,585
Not Ranked     
Default

Quote:
Originally Posted by hauss View Post
which one? will it bolt right up?
Well, now that I think about it I'm not really sure, but it will fit in the Shelby CSX, Superformance and Kirkham. But I'm not sure about Backdraft.

The Fluidyne is an aluminum radiator and I considered it oversized for the SBF 427. This is the Fluidyne link

https://www.fluidyne.com/products/fh...cobra-radiator
__________________
Cheers,
Tony
CSX4005LA
Reply With Quote
  #8 (permalink)  
Old 10-25-2020, 06:43 AM
joyridin''s Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2009
Posts: 1,695
Not Ranked     
Default

I am not radiator expert, but the leading theory on radiator cooling these days is the more rows you add beyond what you need actually causes the radiator to cool less because air cannot pass through the radiator efficiently. If you go on many sites, you will see 2 and 3 row aluminum radiators now rated at 800 and 1000 hp levels. The 2 row radiators are about 2.25" thick and the coolant passageways are 1" wide allowing more surface area for cooling.

Instead of a 5 row radiator, look at a double or triple pass radiator. A triple pass will drop the temperature close to 20 degrees with only 2 rows.
Reply With Quote
  #9 (permalink)  
Old 10-25-2020, 08:58 AM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2015
Posts: 1,442
Not Ranked     
Default

You can use any BMW E36 (manual trans) radiator for a bolt-in.

The are several to choose from.
Mishimoto
https://www.mishimoto.com/bmw-e36-al...tor-92-99.html ($237 amazon)
Mishimoto X-Line
https://www.mishimoto.com/bmw-e30-e3...tor-92-99.html ($466 amazon)
Fluidyne
https://www.turnermotorsport.com/p-1...6-323325328m3/
C&R
https://www.crracing.com/product/bmw...88-99-radiator
Iconicparts
https://www.iconicparts.com/products...iator-and-fans

Fans
Mishimoto
https://www.mishimoto.com/race-line-...ow-fan-16.html
https://www.mishimoto.com/bmw-e36-pe....html#features
Reply With Quote
  #10 (permalink)  
Old 10-25-2020, 09:37 AM
Mark Brye's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2006
Cobra Make, Engine: BDR354/FMS392
Posts: 382
Not Ranked     
Default

When my car shipped from BackDraft after Speed Fanatix installed the engine, there was no thermostat installed. It overheated very easily. I think without the thermostat installed, the water was flowing through radiator too fast to have a chance to cool down. Did you check to see what thermostat you have and make sure its working correctly?

Cooling fan wired with correct polarity on the wiring?

What temp is Fan turning on at? Can you adjust what temp fan kicks on at?

The aluminum radiator you get from backdraft can be purchased with the mounting brackets installed as the aftermarket ones will mount a little different. I think the backdraft one also has option for the aluminum fan plenum and such….
Reply With Quote
  #11 (permalink)  
Old 10-25-2020, 09:46 AM
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2020
Cobra Make, Engine:
Posts: 8
Not Ranked     
Default

Backdraft has an upgraded aluminum radiator. I ordered a car 2 weeks ago and added that upgrade.
Reply With Quote
  #12 (permalink)  
Old 10-25-2020, 11:01 AM
RUFdriver's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2019
Location: Houston, Tx
Cobra Make, Engine: UCC GT 427
Posts: 206
Not Ranked     
Default

Afco racing radiators.
Reply With Quote
  #13 (permalink)  
Old 10-25-2020, 11:02 AM
hauss's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2018
Location: Lodi, CA
Cobra Make, Engine: 427 manowar forged crank roller rockers . BIG CAM.
Posts: 785
Not Ranked     
Default

As far as heat transfer goes, you want the hottest water hitting the coldest air first, for the greatest efficiency. More rows helps along with greater capacity. A weak fan due to interior motor windings breaking down could also be part of the problem. Old owner used to keep fans running at all times.Not sure what omhs should be on motor for fan . It is my belief more hp creating more heat is my problem Original builder spent money on bling not knowing he needed to spend it on a upgraded cooling system for the motor he chose.
Reply With Quote
  #14 (permalink)  
Old 10-25-2020, 11:06 AM
hauss's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2018
Location: Lodi, CA
Cobra Make, Engine: 427 manowar forged crank roller rockers . BIG CAM.
Posts: 785
Not Ranked     
Default

Thank spdbrake for the info very helpful. Also would like to thank others too this is how we learn.
Reply With Quote
  #15 (permalink)  
Old 10-25-2020, 12:34 PM
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2017
Location: Frederick, CO
Cobra Make, Engine: ERA FIA 2158, ERA 427SC 649 sold
Posts: 179
Not Ranked     
Default

Fan is not a huge issue at 40 MPH and above.
Reply With Quote
  #16 (permalink)  
Old 10-25-2020, 12:39 PM
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2017
Location: Frederick, CO
Cobra Make, Engine: ERA FIA 2158, ERA 427SC 649 sold
Posts: 179
Not Ranked     
Default

Do you have a underdriven crank pulley? Retarded or over advanced timing can affect engine heat generated along with over concentrated antifreeze.
Reply With Quote
  #17 (permalink)  
Old 10-25-2020, 03:17 PM
t walgamuth's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2018
Location: Lafayette, IN
Cobra Make, Engine: Looking to buy
Posts: 1,295
Not Ranked     
Default

Quote:
Originally Posted by Mark Brye View Post
When my car shipped from BackDraft after Speed Fanatix installed the engine, there was no thermostat installed. It overheated very easily. I think without the thermostat installed, the water was flowing through radiator too fast to have a chance to cool down. Did you check to see what thermostat you have and make sure its working correctly?

Cooling fan wired with correct polarity on the wiring?

What temp is Fan turning on at? Can you adjust what temp fan kicks on at?

The aluminum radiator you get from backdraft can be purchased with the mounting brackets installed as the aftermarket ones will mount a little different. I think the backdraft one also has option for the aluminum fan plenum and such….
One should always use a thermostat to keep proper operating temperature.
__________________
Cobra loving, autocrossing Grandpa Architect.
Reply With Quote
  #18 (permalink)  
Old 10-25-2020, 04:10 PM
cycleguy55's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2014
Location: White City, SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,908
Not Ranked     
Default

Quote:
Originally Posted by 6TNCRZY View Post
Fan is not a huge issue at 40 MPH and above.
Unless it's not wired correctly and running in reverse...
__________________
Brian
Reply With Quote
  #19 (permalink)  
Old 10-25-2020, 04:12 PM
cycleguy55's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2014
Location: White City, SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,908
Not Ranked     
Default

Good article here on radiators: https://www.stewartcomponents.com/in...ormation_id=13
__________________
Brian
Reply With Quote
  #20 (permalink)  
Old 10-25-2020, 05:40 PM
hauss's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2018
Location: Lodi, CA
Cobra Make, Engine: 427 manowar forged crank roller rockers . BIG CAM.
Posts: 785
Not Ranked     
Default

Quote:
Originally Posted by cycleguy55 View Post
Now you got my head spinning I thought aluminum heads cooled better than cast what am I missing?
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not 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 -7. The time now is 08:52 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink