Announcing the release of the STILLEN race oil cooler
 

Hey Guys,

The long wait is over! We are proud to announce the STILLEN 370Z Race oil cooler. Due to demand from the heavy track guys on the forum we have made a few modifications to our current street oil cooler so that it will be even more effective for track use.

http://www.stillen.com/product_images/400638.jpg

Currently STILLEN is using a Setrab Oil Cooler in our street kit which is designed specifically for engine’s producing between 220-310 horsepower. This is why we chose this core to integrate into our Nissan 370Z oil cooler kit. It is a good size and it has been proven to work very well. It prevents the car from going into limp mode by reducing oil temperatures below the factory limited controls.

However, for the guys that are really pushing their cars hard on the race track we feel that they would benefit from an even larger oil cooler option. The current Setrab oil cooler unit we are using is designed to dissipate around 37,000 BTU/HR. This new Setrab oil cooler is designed to dissipate around 60,000 BTU/HR which is about an additional 20-30 degrees removed from the oil temperature.

We have found that when pushed hard on the race track during 20-30 minute track sessions the street oil cooler kit prevents the car from going into limp mode but the oil temperatures still reach around 240-260 degrees. These temperatures aren’t bad but we would like to see them a little lower. The new race oil cooler option will give an even greater drop in temperature of around 20-30 degrees. This new oil cooler core has twice the surface area of the street core but will be a direct bolt-in and will be able to work with the same lines as the street oil cooler. This means that anyone with the street cooler can upgrade to the race cooler with minimal fuss. The race oil cooler uses a 26 row core, versus the street oil cooler's 19 rows.

For a limited time (30 days) we will be offering an upgrade path for our customer’s who have purchased the street oil cooler and would like to upgrade to the race cooler. This upgrade kit will include the new core, mounting bracket, and all of the necessary mounting hardware. For more information on the upgrade kit and pricing please call in and speak with one of our representatives.

Here is a link to the two oil cooler options:
STILLEN : STILLEN Oil Cooler Kit

Here is a comparison photo of the two radiator cores. The one in front is the street core, the one in back is the race core.

http://www.stillen.com/misc/400637vs400638.jpg

Rock on!

badass.. i know a buncha ppl who have been waiting for this

Just wanted to jump in and clarify something. I saw something in the Nissan Motorsport/Stillen oil cooler comparison thread that I would like to address.

In the installation picture (of the Nissan Motorsport oil cooler) it looks like the crash bumper needs to be removed (and I assume re-installed) in order to install the cooler? It also looks like the crash beam will then cover about 40% of the top half of the oil cooler when it is re-installed? If I'm mistaken please correct me. Our race oil cooler is designed to be mounted directly in front of the crash beam and the crash beam does not need to be removed or modified in order complete the installation. There is also no air restriction from the crash beam as it does not get near the front of the cooler.

We will be installing the race cooler on our car shortly. We still have some testing of other parts to do first but this installation is definitely a priority. I will have more photos and detailed explanation of this as soon as we complete the installation.

Please do not take this post as derogatory towards the Nissan Motorsport oil cooler. Just trying to offer a little more information for those looking for their oil cooler.

What other parts? :tup:

Awesome :tup:

^ +1

Kyle, has this new race oil cooler been fully tested yet?

Very promising product, although I am sitting on the fence for the time being until I hear more of testing results.

Will this race cooler be suitable for street and track or is it strictly plumbed (geared) for track only?

.

PM please :)

Nice job guys :tup: So this is in stock now?

Not to step on Kyle's thread (I'm a Stillen fan), but I'd caution anyone in the cooler climes to upgrade to a thermostatic sandwich plate. With a cooler this large (Perfect for track use) you stand the possibility of the oil never really getting up to temp on the street...Particularly in the cooler months in the northern areas. You guys (Stillen) really should offer the option of a thermostatic plate with this......Not everyone lives in California!...:-)

haha - all the ones who matter do!! :p

LOL...I used to...Glad to be gone!

There are other options for a thermostatic sandwich plate if Stillen doesn't end up offering one. I am in Tucson, AZ. so I doubt I will need one, but once I get a large oil cooler (probably Stillen) I will keep an eye on oil temps as winter comes.

Very nice, Is that a Thermostatic oil filter adapter .

Sam

Very well design

I believe you just answered my above question for Cali peeps like myself. Which is YES it can be used on the street, in Hot climates like Cali.

Will it fit on a 370Z with Gen 3 intake?

Looks like a great product!! Question I have, though, is without the thermostatic plate...will oil-temps be too low while driving casually on the street or perhaps cruising on the freeway on a cool night? From testimonials, it appears as though the street version did such a phenomenal job at lowering temps that things are right at optimal levels for hard or normal street-driving.

Part of me however thinks that with either the street or track setup, oil-temps will stabilize in the 180-190 range, and the race version will just make it damn near impossible to see temps above 230 on the track. Am I correct in that assessment?

Pulled the Trigger!
 

Mine is in the mail!

Thanks Stillen for the work you guys do!

Looking good Stillen~!
Pricing isn't too bad either :P
any special pricings for us?

Oil cooler cover.
 

Check out this thread. This guy fabricated a oil cooler cover out of thin sheets of stainless steel (& packing foam but I am not sure what the foam was used for...).

This could be a cheap solution to over cooling.

CTS-CTS-V FAQ: Oil Cooler installation procedure

+1

My thoughts also, with my question above, yours is worded better. :tup:

Stillen:

Kyle/Josh, you guys throw this out two days ago and have NOT been back to the thread since. The questions are mounting (2 pages).

Would appreciate some answers, there are a number of community members ready to pull the trigger but need some answers to our questions. Thanks again guys for your hard work.

Very cool, e-mail sent :)

Sorry for not getting back to you sooner. I've been on the dyno and in the shop the past few days with our 370.

The street oil cooler is what we would like to recommend for 99% of the owner's of the 370Z's. The race oil cooler will be a bit overkill for the majority of people and just won't be necessary. The street oil cooler has been proven to work very well and offer a big reduction in temperatures. Even on the track the street cooler is working very well. We just wanted to see the temperatures get a little bit lower while on the race track.

why would stillen's marketing crew be around when a 370z is being dynod..enough to completely forget to respond to questions on this thread... is it because they are about to announce another great product/kit....:stirthepot:

i bet every FI fanboy just did this...
http://www.bestweekever.tv/bwe/image...ambergJizz.jpg

So is there a dis-advantage to running the race cooler on the street? I was just driving in traffic yesterday (it was hot, bout 98deg) and was not even close to driving aggressive, my oil temp was fluctuating from 240 - 250. Even on a cool day, my average oil temp is 220. If the race cooler has a 40 degree reduction, would still be at 180 right? Also, I plan on running a supercharger, I have a feeling this will kick up temperatures a bit. Is running the car with too low an oil temp bad, and what is considered too low for this car?
I notice that the car runs really good and feels way more responsive when first starting up in the morning, but as soon as it starts creeping into the 200 range it starts to feel sluggish.

Kyle, my apologies if I sounded pushy, I did not realize you were indeed taking care of the 370Z community. Appreciate the response on street recommendations versus track. Keep up the great work guys.

HAHA. I wear quite a few hats around here but last week we were doing a bunch of video's of our performance parts. Intake, exhaust, headers, HFC's and their dyno numbers as well as their sounds. FI video's aren't far from being ready but it will be a little while longer.

Judging by your list of modifications in your sig. I'm assuming you do not currently have our street oil cooler? I would suggest starting with this. For street use I think you would have a hard time pushing the temperatures beyond a safe point with the street cooler. The race cooler might be a bit much.

When we say that the race cooler might be a bit much we mean that in two ways: 1) financially speaking-At the end of the day the race cooler is substantially more expensive. We know this but the core is substantially larger so the cost is going to be more. I firmly believe in the philosophy that if you don't need to spend the money, why spend it? If you don't plan on driving your car hard on the race track then the street cooler will be fine for you. 2) Streetability- With the race oil cooler in particular you will want to have a thermostatic plate installed. We will have this option soon, we're just trying to find a source so that we can be competitively priced. As it stands right now you can pick up a thermostatic plate for pretty cheap from sources like Amazon.

It is possible to have your oil run too cold. 180-200 degrees is pretty much optimum and realistically 180 is on the cool side.

No apologies necessary. I understand your enthusiasm and I thank you for it! If you guys have any questions please do not hesitate to ask!

I will admit that I don't get to spend as much time on the forums talking about our parts as I'd like. I'm kind of nosey so I'm always out in the shop or in R&D snooping around and trying to gather more information. I try to come back as often as I can though to offer more information.

This may be too obvious to mention, but when you first start it up in the morning, it will run rich. This would make it feel more responsive. The ECU will obviously take that down after a few minutes of run time (it's usually only a minute or two for me at around 50-60 degrees ambient).

If the effect you're talking about is different and lasts all the way up to 190 degree oil temp, then please disregard this post :rolleyes:

For those of us trying to decide between this and the Nissan Motorsports kit - did you guys upsize the lines to 5/8" for the race kit? Do the Stillen engineers think that matters?

I'm not trying to start a battle here, but I am trying to decide which route to take. It does seem like a 34-row cooler isn't getting fully utilized; it seems surprising that Nissan would screw that up. I guess I'm just trying to find something that will help tip the balance one way or the other...

Thanks for the info and recommendations Kyle :tup:

We have decided to stick with the -8 braided lines. The main factor for this is the engine itself. The oil ports in the VQ37 where the oil comes out into the filter assembly (where the sandwich plate is located) are pretty small. There's no real point to going with a large line after coming out of a small opening. The -8 lines we use are about the same size as the oil channels and this ensures that the oil pressures do not fluctuate too far (if at all) from factory specs. The only benefit to a -10 line is the slightly increased volume. Other than that there will be no gain in pressure or performance.

Fair enough. Thanks. Honestly, I'm actually leaning toward your cooler because 26 vs. 34 rows means less oil - and less weight - in the front of the car. If the top 8 rows aren't getting direct airflow, they aren't doing much anyway, so it seems like it's mostly just a volume addition.

I do have to hope that the extra few rows on your new cooler vs. the old cooler will be enough to take the heat from a supercharged engine on the track, should I want to go that route in the long run...

^I hope the same too. I already ordered The race cooler and the upgraded steering cooler. The good thing about the Stillen cooler is that the oil cooler is going to be on the passenger side. that and the bigger core made the decision for me.

Kyle, my track cooler was just shipped today.

Question, would I have any issues with swapping in a Mocal 20mm thermostatic sandwich plate?

Just make sure you order AN8 fittings for the plate inlet and outlet..

Do you know if the AN fittings supplied in the Stillen kit fit the Mocal?