I am thinking of adding a differential oil cooler to my Z. It would be part of a set-up including a finned Nismo diff cover. It seems I will need a pump to circulate the diff oil. Anyone know how this would be wired?? Would this
set-up work the same for a transmission oil cooler???? Thnx!!




BTW: I searched!!!



" The message provided above DOES NOT in any way or manner reflect the views and opinions of the OP".

 

hmm this sounded like a different question.... my answer was gonna be "use more hand cream" loljk. anyways.... free bump

 

You don't need a diff pump for the nismo diff cooler. Just take the old factory diff cover off and swap it for the nismo unit.

Here's how I did mine;

1) drain diff fluid
2) loosen diff cover bolts
3) disconnect the transaxles from diff
4) disconnect any exhaust components that may be in the way
5) drop the pumpkin
6) swap diff covers
7) bolt / torque pumpkin back up
8) torque diff cover bolts
9) reconnect / torque transaxles back to diff
10) reconnect exhaust
11) fill diff back up with your choice of gear oil

Took me about 2 hrs.

 

Thanks for the info!!!!

 

IIRC theres a company called 'acusump', they make small pumps exactly for this kind of thing. Im sure you could get a smal pump that would fit under the car to pump the differnetial fluid through the cooler.

 

I think he was asking for an external/auxilary Cooler in addition to the Finned Cover. I'm thinking some sort of small water pump?

Tranny? 5AT or 6MT?
5AT already has something set in place for the fluid to get to the factory "Tranny Cooler". So, just run an auxilary/additional cooler and have it routed inline with the factory, or seperately bypassing the factory.

 

Ahhh, gotcha. Yeah the external oil coolers are sweet~ :-)

 

EWrin - the NISMO rear diff cover is not really a cooler, but rather a finned cover

I think Adrian wanted to know regarding a rear diff cooler assembly. Most of the ones I've seen include a provision for a pump. ARC does a very nice, complete set...there is another one too I think, I have to look for it

 

Yes guys I was thinking of an external/auxiliary cooler for the diff. Thanks for the input.

 

This may help a little for those who cant picture it.

https://my350z.com/forum/showpost.ph...3&postcount=38

Look under the red NISMO Z, you can see the AN fitting for the inlet to the pump as it enters the bottom of the pumpkin and the cooler itself.

My suggestion is to have an inline oil pump, with the AN fitting for the inlet in the lower "drain" plug hole. That would go into the pump, and the outlet of the pump will push the oil through the cooler. The outlet side of the cooler will dump the cooled oil into the fill port at the top of the pumpkin. Or rather side middle. Shouldnt be that hard. You would look at picking your power off the fuel pump like the aux fuel pumps do.

EDIT: Check out RFD12-14 in the Nissan service manual it will give you an idea of where the plugs are located. I have to call Nissan in the morning to order up some bolts might as well ask them what the thread pitch is. It would be a plumbing mm fitting with a bout a 45deg angle hose ends (possibly barbed). You can pick up an XO2 9 row oil cooler fairly cheap. Depending on the price of the pump you can do this up fairly cheap.

 

^^ Thanks for the additional info!!

 

no worries, I actualy have an extra 9 row cooler I may be looking at utilizing soon.

 

Weldon makes a pump made for this situation.

http://www.weldonracing.com/product....ature_Oil_Pump

You can find it for around $350 online.

 

If you mixed the fluid from the 5AT with the rear diff fluid, the transmission would probably be destroyed within a month. Two totally different fluids that you cannot mix.

You'd want a standalone system for the rear diff.

 

I found a sit that sell pumps by a company called Tilton. My undertsanding is that they also produce Mocal pumps. They have a pump for $175. Has anyone herad of them??

 

Tilton is certainly well known

but I'd avoid getting a pump till you have the rest of the setup mapped out. Also space being a premium under the car, take the pump measurements into consideration

 

It helps if you have duals or even a single. That stock can needs to go away and you will free up alot of space.

 

bump for results? (I was planning a setup as well)

 

After doing some more research I found a set-up that looks like it will work. I priced the parts from Summit Racing, EXCEPT FOR THE INLINE FILTER.
The following items will be needed:

(1) OIL/WATER COOLER PUMP ($173.24)
Manufacturer: Tilton
Part#: TIL40-524 Flow Rate @ 12 Volts (gpm): 1-2 GPM
Working Pressure (psi): 60
Temperature Range (degrees F): 0 to 265
Power Supply: 12 V DC
Hose Material: Rubber
It features 1-2 GPM flow rate, is self-priming, has an integral cooling fan, and weighs 3.5 lbs.

(2) Cooler ($145.95)
Manufacturer: Derale
Part#: DER-15800
Overall Height (in): 10.000 in.
Overall Width (in): 12.500 in.
Overall Thickness (in): 4.000 in.
Cooler Construction: Tube and fin
Cooler Material: Copper/Aluminum
Fan Quantity: Single
Maximum Fan CFM: 650 cfm
Fan Diameter (in): 10.000 in.
Inlet Size: -8 AN
Inlet Attachment: Male threads
Outlet Size: -8 AN
Outlet Attachment: Male threads
Number of Cooling Rows: 16
Core Height (in): 10.000 in.
Core Width (in): 12.375 in.
Core Thickness (in): 1.750 in.
Cooler Finish: Black painted

(3) Adjustable Thermostat control unit ($40)
Manufacturer: Derale
Part#: DER-1749
Thermal Switch Style: Adjustable fan control kit
Sending Unit Style: Thread-in
Sending Unit Included: Yes
Sending Unit Thread Size: 3/8-18 NPT
Fan Quantity: Single/Dual
Adjustment Range (F): 150-240 degrees F
Relay Included: Yes
Wiring Harness Included: Yes
Manual Override Switch Included: No
Air Conditioning Relay Included: No

(4) Stainless Steel Braided Hose ($60 EACH: 2 needed)
Manufacturer: Aeroquip
Part#: AER-FCA0810
Hose Size: -8 AN
Length (ft): 10.00 ft.
Hose Inside Diameter (in): 0.438 in.
Hose Outside Diameter (in): 0.650 in.
Maximum Operating Pressure (psi): 1,000 psi
Quantity: Sold individually.
Notes: Only rated for 750 psi with lightweight crimp fittings.

(5) Oil filter ($51.30 @ HRPWORLD.COM)
Manufacturer: Peterson
Part# PTR 09-0401
Hose Size: -8 AN
Inline fuel filter

TOTAL COST : $530.35

Try to keep bends to a minimum and use the least amount of SS hose possible. It has been recommended to install the cooler ahead of the pump as it is better to pump against pressure rather than trying to draw fluid against pressure however the Tilton (Mocal) pump should be able to handle the set-up either way. The thermostat is wired with one fan lead to the pump and the other to the cooler fan. In this set-up the pump's main power line and the yellow ignition sense wire are are connected to battery directly so that the diff will cool down between runs, even with the igniiton off. The control module's factory setting is 160 degrees so no adjustment should be needed, however I need to confirm the factory specs for the difff temperature so that the control module can be set properly. The pump should have a pre-filter to prevent large chunks from entering the pump. The Peterson filter was chosen because of its compact size. Install time is estimated at 2 hours tops.


Hope this is helpful to those looking for a complete differential oil cooler system. Please give feedback.

 

how are you going to fit a 10x12 oil cooler under the car? That is a HUGE cooler for such a tiny rear - seems like something one would run with a Ford 9 inch, but our diffs are about half that size