Correct, the factory oil cooler is nothing but a sandwhich plate with coolant that is about 20-30 degrees cooler then normal oil temps. There is actually no extra lines or an actual cooler such as the aftermarket ones. Its just that plate that has coolant running through it at a slightly lower then oil temp.

Just saw that now thanks. Wow, ill be pulling all this off and making my own.

If your really daring you could get do a custom coolant to oil cooler. A few of us have considered it but never taken the leap.

Laminova Oil-Water heat exchanger

not sure about price but I think it takes too big of a heat exchanger to do that and will most likely need an upgraded radiator as well.

If you get limp mode at 220 deg, something is definately wrong with your car. I had my car up to 265-70 at the track and no limp mode, that's when I back off and let car cool down. After 34 row cooler and stock cooler, my track temps dont go over 265, normally hovers around 255. I will try to shroud it and fan it next, would like to keep temps around 220's at the track!

:iagree:

sounds like heat soak

So with the stock cooler hooked up and an aftermarket 34 row do you run a short or long filter?

I've got a 34r gtm oil cooler. There's no option of a longer filter. There's barely enough room to get the stock length filter off without taking oil bukkake. The sandwich plate takes up the room you need for a longer filter.

Even with no stock cooler? This guy did it but with no stock on there. Not sure how much room is there from this pic.

http://i39.photobucket.com/albums/e1...ps4b75e6e6.jpg

I've got a 2011, so no oil to water cooler on there. With gtms sandwich plate, you don't have enough room for a longer filter. Maybe other brands of sandwich plate are thinner.

Ahh, yeah that's probably true.

However the guy in your pic did it, there's not a lot of room. I'd just run a stock sized filter.

Just keep on driving that the z until you reach 2-3k miles on the odometer you'll notice everything start to get smooth.
My z runs very sluggish at the beginning it fills so tight and the engine seems to have a hard time reving more than 5k but know I have to tame her she is wild.:tup:
But the oil cooler 25 row if you only do occasional track is a must.

Over at my mechanic's shop, (he builds and maintains Bob Sharp's racing Nissans), 220 is *extremely* worrisome. I tend not to cite references from "Bob the Oil Guy" and prefer folks with lots of track time.

Agreed. No way Limp Mode is occurring at 220, something else is going on. I thought Limp kicked in around 260+?

Here is the graph I was referring to. And it's a great DIY as well.

Look at the viscosity level at 220.

http://www.the370z.com/diy-section-d...ttsa-pics.html