So my G is going through some changes. I have a Z1 25 row and purchased their 34 row. Instead of selling the 25 I was thinking maybe I can use both. Problem is I don't know if it's to much cooling. I have a CSF triple rad and have the Gamma oil pan in the mail on its way. I have and am running nitrous and have a Boosted Turbo kit being made as I type. Any peeps out there know?? Ideas ???

 

I would just run the 34. There is a such thing as too cool. The oil needs to be at and maintain a certain operating temperature to do it's job

 

34 row should be more than enough.

 

sell the 25 row, you will sell it fast.

 

Plus you're in Portland. Doesn't get abnormally hot there often I'll be doing an oil cooler late spring. Too many 100+ degree days last summer for my liking.

By running two coolers, you're also limiting flow to your radiator.

 

How decent is the traditional oil cooler? Do you really need any upgrade if you aren't racing?

 

The G doesn't have one but probably should.

 

Thanks for the feedback. I have called a couple shops and they say it won't hurt. So I will try!!

 

Depends on the climate you live in. My 34 row is not enough for the Texas heat and track days. I usually need to do a parade lap to cool down in the middle of a session.

​​​​​​If you live in a similar climate I would definitely run both. I'm trying to figure out a way to add another cooler myself.

 

The OP's in Portland and I don't think he has a twin turbo setup like you. I could fully understand the need to add a second cooler to a high hp TT setup, in Texas, for those who track. But naturally aspirated (even with spray), I can't see the need in the Pacific Northwest.

I ran a twin sequential oil cooler setup on my RX7 via the brake "ducts" in the front facia in front of either front wheel. But I'd also see EGT's in the 1800 degree range at full boost

 

Yes it DO have oil cooler. But is not available on US spec G37.
The OEM cooler is sandwiched between the oil filter and engine body.
The setup is simple and i think will be much cheaper and more easy to install than aftermarket cooler.
There are 2 ports on the engine body that for the coolant lines that goes to the oil cooler. On US spec G37 that ports are closed with caps.
The Eu spec G37, Asian Skyline and i think even the canadian G37 have the OEM oil cooler installed.

The OEM oil cooler do a very good job even when the car is pushed very very hard for long periods of time.

The coupe/very oil cooler heat exchanger is bigger then any aftermarket one.





https://www.myg37.com/forums/g37-cou...ml#post4037691

 

^^^^Ok well the OP is in the U.S. so it's a moot point.

We have those and it's mostly to heat up the oil more quickly. For track duty, they don't work and the 370Z guys actually plug them when installing aftermarket oil coolers. There's nothing better for cooling oil than a front mounted air heat exchanger. The surface area on what you've pictured is inadequate. There's a pretty massive thread on the370z forum detailing oil temp issues, with that part installed, even driving normally on the street.

Plus our G's don't have oil temp gauges. Have you installed a separate gauge to monitor oil temps?
http://www.the370z.com/engine-drivet...mp-issues.html

 

I used a software to monitor the oil temperature and i was stable even on hard driving rounds... I don't know what cooler the 370Z use... The bigger G37 coupe/vert oil heat exchanger is pretty big, bigger than any aftermarket heat exchanger i saw, and it can do a good job on cooling the oil...

 

Is there an auxiliary air to oil cooler that comes with the kit or is it just the oil to coolant heat exchanger in the photo? Is the car's radiator larger in your country than in the U.S.? I'm pretty sure that's more for raising the oil temps to proper operating levels than it is for cooling. I know some 370z guys remove it/plug it when installing aftermarket oil coolers and some leave it there to heat the oil up more quickly. Still in the end, it isn't as efficient. It takes roughly two hours to install a quality aftermarket oil cooler kit.

An air to oil cooler is going to be far superior just based on surface area alone. Everyone uses air to oil heat exchangers from grassroots racing all the way up to F1. Not to mention (relatively) cool air is going to remove more heat, more quickly, with a large air to oil exchanger vs. one that's being cooled by fluid that's at 180 degrees+. In addition, the base the filter sits on, that's it. There's no additional surface area to pull heat out of the oil. I think that would work fine for a daily-driven car in a hotter climate but I doubt it'd do a thing for me personally here in Texas other than heat my oil up more quickly.

The 370's, if I can remember correctly, started installing them later, like in 2010 through 2012 but have since removed them and have a TSB to use the Nismo oil cooler kit which is a Setrab air/oil heat exchanger.

 

So it was the 2012's and up that received the cooler but it doesn't do much good for the track folks. I need to check and see if I have one on my IPL tomorrow and I'm going to start logging oil temps through winter and into summer.

More info from the 370z forum:
how does the 2012 factory oil cooler stand up to track/auto x - Nissan 370Z Forum