post #1 of Old 06-23-2013, 02:52 AM Thread Starter
ukjeeper
Registered User
1991 YJ Wrangler 
 
Join Date: Jan 2002
Location: Essex, UK.
Posts: 85
OBA question.

A few years ago i took all my AC components out of my '91 (except the Sanden), and set up OBA.

As you know, the air output from the Sanden is kinda hot, up till now i've run the output line on a long loop round the outside of the engine bay and back to the manifold to help it cool.

But, I've currently got the rad out (waiting replacement) and am considering putting the old AC condensor back in and running the output from the Sanden through and back to the OBA manifold.

Has anyone here done this? Did it help? Is it worth doing?

ukjeeper is offline  
post #2 of Old 06-23-2013, 07:15 AM
95 Lowbuck
Registered User
 
Join Date: Feb 2006
Location: San Ramon Ca.
Posts: 230
I think it's a little overkill.
If you have a copper coil for the output, which I don't even have,
it should be enough to keep o-rings and rubber seals from melting.
Adding the condenser will just increase weight and restrict flow to the radiator.
95 Lowbuck is offline  
post #3 of Old 06-23-2013, 07:43 AM
JeeperDon
Join a 4x4 Club
 
JeeperDon's Avatar
1993 YJ Wrangler 
 
Join Date: Jan 2005
Location: Albuquerque
Posts: 7,385
You can get a junk yard York for cheap, which runs cooler and doesn't have the oil concern (meaning don't use a Sanden just because you have one).

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
Web Admin for New Mexico 4 Wheelers My Truck Page on NM4W Site
JeeperDon is offline  
post #4 of Old 06-23-2013, 07:50 AM
jeepster93
Registered User
 
jeepster93's Avatar
1993 YJ Wrangler 
 
Join Date: Sep 2006
Location: Englewood, CO
Posts: 4,373
I made a copper coil from the compressor to the storage tank to help with the heat. Also I get my intake air from the outside of the engine compartment for even more cooling.
The storage tank is under the batteries and the copper tube is like 5 feet worth of coil, and the air intake is right below the pass headlight on the grill. And the compressor was rebuilt(by Extreme Aire) with new bearings and grease paths to also keep things smooth and as cool as it can get.
This setup runs hot, as do ALL air conditioners that are converted, even Yorks, the Freon has a oil load in it to lube and cool( the freon) the compressor. Without this oily freon we need to deal with a lot of heat. But mine runs cool enough as to not be an issue for me. I have ran it for 5 modded Jeeps worth of large tire fillings, about 40 minutes solid of run time without issues of heat(I did open the hood and rev the engine a bit).
Heat will kill your compressor if it is not delt with...

jeepster93 is offline  
post #5 of Old 06-23-2013, 04:23 PM
TSEJEEPERS
Web Wheeler
 
TSEJEEPERS's Avatar
1993 YJ Wrangler 
 
Join Date: Dec 2003
Location: Morton IL
Posts: 5,443
Quote:
Originally Posted by ukjeeper View Post
A few years ago i took all my AC components out of my '91 (except the Sanden), and set up OBA.

As you know, the air output from the Sanden is kinda hot, up till now i've run the output line on a long loop round the outside of the engine bay and back to the manifold to help it cool.

But, I've currently got the rad out (waiting replacement) and am considering putting the old AC condensor back in and running the output from the Sanden through and back to the OBA manifold.

Has anyone here done this? Did it help? Is it worth doing?
I have not done it but I do not see why it would not work.
Even better run it to the tank after the AC condensor and then to your filter, pressure switch and manifold.
I did the grease thing rather than using oil.
http://www.jpmagazine.com/techarticl...rd_air_system/
http://www.grungle.com/endlessair.html

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
TSEJEEPERS is offline  
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome