Need help creating external oil cooler system on 1972
 

Gents
I have a 1972 that I would like to start using at DE events. When I would run AX's in San Diego, I would be reading about 220deg after 3 laps with 5 minutes in between each lap. It would usually stay in that range after doing the 4th lap, and I would drive the car around the stadium to help it cool down. I currently live in the NW, but will be moving to Austin in about one year.

I understand that the 72 oil filter console is unique in that it can be machined out to insert another thermostat for a remote oil cooler. I have also seen pictures of guys routing the forward running lines through the rocker panels.

After doing several searches, I would like to use one of the coolers with the thermostat activated mounted fan, as I don't want to worry about routing cooling ducts, and don't want to run a separate toggle switch. Not looking for stock/OEM products. She's a bastard and there's no point trying to save her now...

This is what I need if you have the answers:

1. Pictures if you have them, on the routing/attachment points.

2. An explanation of how the oil path is changed when you add the second thermostat to the oil filter console.

3. If you have info on AN->metric conversion fittings, that would be icing on the cake.

4. Any further info that i'm too ignorant to ask for, I'll owe you a beer. http://www.pelicanparts.com/support/smileys/wat6.gif

Thank you
Matt

Matt,

These '72 diagrams may help ...


http://forums.pelicanparts.com/uploa...1119220339.jpg


http://forums.pelicanparts.com/uploa...1119220430.jpg


http://forums.pelicanparts.com/uploa...1119660406.jpg


These two non-72 oil flow diagrams may help visualize the flow with and without the cooler in the scavenge circuit:


http://forums.pelicanparts.com/uploads/OilSys-800s.jpg


http://forums.pelicanparts.com/uploa...1074124035.jpg

warren
thank you. very helpful.

with the second thermostat, would 190deg be appropriate? diagram shows both engine and aux thermostats opening at 182deg...

i never even noticed that there was a third exit point on the wheel well side of the filter console. i understand that this point will go forward to the cooler. and the mystery is solved for the large plug on the bottom of the oil tank... this is the return point from the forward cooler.

now, as for fittings... looks like everything should accept the standard 36mm oil fitting. is this correct?

if i am correct, i should be able to use two of the 90deg compression style fittings at the tank and filter, run the lines forward, and connect them with the fittings of my choice to my forward cooler...

am i in the ball park?

what about running the hoses through the rocker panels? i could have sworn that i saw this done on a RS looking, viper green model. might have been the one with the front hood modification for a heat exhaust. any pictures would be appreciated.

doesn't the heat system run through there, also? would the hoses have to be SS braided for heat issues, or would the standard fabric braiding be okay?

thank you for all of your assistance.
matt

Matt,

You might want to contact Chuck at Elephant Racing. Sure that he has many of the things that you will be needing, and his stuff is very good! If you are going to be racing the car it might be worth looking at upgrading the system instead of using '72 era stuff.

Joe A

The blue fitting is an aluminum AN adaptor. It is the uppermost as you look up under the fender. This one goes to the front cooler as well as the one at the bottom of the oil tank. The right angle fitting has AN fitting welded. The other 30 mm has a right angle also.
Hope this is helpful.

http://forums.pelicanparts.com/uploa...1146660953.jpg

Jon

jon
if i label your console above clockwise, starting with the blue one:

1. blue: to front cooler
2. to top of tank
3. from scavenge

is this correct?

also, what is the bore size to accept the thermostat?
thanks
matt
----------------------

joe
i'm a do-it-yourselfer. chuck has some great ideas. just a little out of my price range...

Your console connection labeling is correct.

You can run soft lines through the heater ducts, but the common solution is to run hard lines under the rocker panel. The factory did it this way.

OEM '72 hard lines for running along the rockers are NLA, but the Elephant Racing finned lines are available in a flavor for the '72. Our host carries them.

The finned lines have 30mm fittings just like the rest of your system. I encourage you to stay with the 30mm stuff throughout.

Note the small ID of the blue AN12 fitting compared to the 30mm fitting to the lower right.
http://forums.pelicanparts.com/uploa...1146660953.jpg

You really want the flow capacity of the factory stuff, and you don't need to mess around with adaptors.

thanks, chuck
visited your website and saw the fittings. didn't realize you sell the individual parts to make your own system. i can appreciate the larger ID's of your fittings...

anybody have the few missing pieces of info:
through the rocker picture
bore ID

Matt,
The bore size for the thermostat was left up to my machinist. I gave him the thermostat. Chuck is right about the restriction of the adaptor. I never was happy with the reduced size, but it was the only practical solution at the time. I put this together about 5 years ago with some huge corrigated stainless tubing that looks like the bendy part of a kids straw and special fittings from BAT. As each month/year goes on, I find myself wanting to get more original configuration to the car. The above setup works well on my car, but I use it only for street driving. I would go with Chuck on this one. His fittings are better than the one shown. Interesting to note that the aluminum fitting is reduced in ID, but the steel weld on fitting nearly matches the 90 tubing ID. By the way Chuck, I just did your JB Weld suggestion on the polybronze bushings I just purchased and it went very nicely.