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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > STETT Performance Stage 2 Oil Cooler Kit w/ 180F Thermostat **EXTENSIVE REVIEW/DIY**



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      12-03-2010, 02:21 PM   #23
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Quote:
Originally Posted by only1 View Post
very nice....your car is a rolling parts bin. do you ever hit the track?

Thanks again for your review.
only1, no problem my friend. I do hit the track and will this coming year to push the car even harder.

Quote:
Originally Posted by Sniz View Post
thats good stuff, now you have more reasonable oil temps.

Sniz, I completely agree. 262F is just rediculous!

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Originally Posted by JoosyJoos View Post
Awesome write-up. I wish every forum had a member that made write ups and well as you do.
JoosyJoos, thanks for such a compliment my friend. I always hope that in the end these reviews shed light on products that people may or may not want to buy. In the end these reviews are simply a source of information.
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      12-03-2010, 02:24 PM   #24
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The funny thing is, last winter I drove from Chicago to Denver and back for Xmass. At that time the midwest saw one of the biggest blizzards in the recent years. On the way back, my car was registering air temperatures of -10F to -17F. That's pretty damn cold.

At the same time, my oil temperatures dropped to around 180-190F. Normally the car operates at 230-240F in the extreme summer traffic jams in Chicago.
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      12-03-2010, 02:24 PM   #25
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Quote:
Originally Posted by JPSlick View Post
My goodness bro, I hope you get paid for these reviews, that is insanely extensive.

I know the product is great, and at one point I was looking for an oil cooler with a lower thermostat, but that install is a NIGHTMARE.

Thanks for the review though.
JPSlick, thanks for reading the review. The install is really not hard at all. There is a little prep work, but this was easy compared to my methanol and nitrous install. No wiring anywhere!!!

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Originally Posted by BrianMN View Post
Wow again! Looks great. I was wondering where the thermostat was located after seeing the billet adapter in the 'teaser' pics of the CAI.

Does anyone know if that group buy started?
BrianMN, you are welcome my friend. I think STETT is planning a group buy shortly. I am not sure of any specifics though.
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      12-03-2010, 02:24 PM   #26
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Quote:
Originally Posted by Former_Boosted_IS View Post



Sniz, I completely agree. 262F is just rediculous!

.
yeah man, the stock oil cooling setup on my '99 M3 has never seen over 210 and thats with the oil cooling my large turbo.

I have never ran it on a road course (one day I hope!) but on hard street driving or stop in go in 110F heat it still doesnt go above 210.
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      12-03-2010, 02:26 PM   #27
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Originally Posted by Bakeme521 View Post
What is the stock thermostat set at? I wish somebody would make a 180F thermostat for the stock oil cooler and see what happens.
Bakeme521, the stock thermostat is inside the adapter that was removed from the oil filter location. There is absolutely no way it could be changed out from what I can see. I will take a picture of it if you want?

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Originally Posted by robbie211 View Post
very nice write up. I would love to put one of these in and see my oil temps drop from where they are now.

robbie211, thanks buddy! I am not sure I could see a situation where they would not drop with this kit. It addresses the real source for the high oil temperatures in my opinion.
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      12-03-2010, 02:28 PM   #28
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Quote:
Originally Posted by onefastman View Post
+1

Wish we had a 200F thermostat on the stock oil cooler

I guess Ill buy the whole kit
onefastman, I think you will be really pleased with that purchase.

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Originally Posted by jjurroz View Post
Do you know if they would be willing to sell the themostat delete plate and the 180F thermostat seperately?
jjurroz, that is a good question. It couldn't hurt asking them?
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      12-03-2010, 02:32 PM   #29
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Quote:
Originally Posted by cn555ic View Post
Another stellar review...Great job...
cn555ic, thanks buddy!

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Originally Posted by SfValley335i View Post
Picture of the wheel well after the install??

SfValley335i, are you just looking for a shot with the wheel turned in?

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Originally Posted by kenneth View Post
FBIS, great review, with measurable comparisons.

I have the AR front mounted additional oil cooler, which uses the stock thermostat. Ideally I would have loved a lower temperature thermostat to go with the set-up. What would you recommend? Thanks.
kenneth, thanks a lot for the kind words. I always try to write a review with quantifiable results. I feel like this can give others real insight into whether or not this part fits your needs.

I am not sure how to approach getting a lower thermostat on the AR kit. It would require a thermostat delete like STETT is doing. Maybe STETT will sell a thermostat delete or optional 180F thermostat kit?
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      12-03-2010, 02:36 PM   #30
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Quote:
Originally Posted by raceyBMW View Post
Excellent write-up!



If you did that, it would still retain the stock OC thermostat (which is built into the OEM front plate oil filter housing) and adding the other inline thermostat would be kind of silly. This would mean you have the factory one that opens at ~240F-250F and then oil would go downstream to the Stett 180 thermostat and already be hot. They way they did it is the correct way.

Too bad no one has simply come up with a new OC thermostat to directly replace the factory one.

BTW, does this new thermostat allow it to flow slightly at all times, or is it either open or shut?
RaceyBMW, thanks for the kind words. When I look at the thermostat it has a spring up top and a bar style down bottom. I am not sure if you can get flow through the spring below 180F. Maybe STETT can answer that? Judging from the shape of the warmup, it appears it does operate as stock thermostat. There warmup curve is not linear, but seems to start to level as it approaches the 180F thermostat temp.

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      12-03-2010, 02:37 PM   #31
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Quote:
Originally Posted by acnhdernegw View Post
+1

Great Review as always !!
i enjoy reading all of them everytime Thank you
acnhdernegw, thanks for taking the time to read them. That is a lot of your life that is gone!
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      12-03-2010, 02:39 PM   #32
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Quote:
Originally Posted by Former_Boosted_IS View Post
Bakeme521, the stock thermostat is inside the adapter that was removed from the oil filter location. There is absolutely no way it could be changed out from what I can see. I will take a picture of it if you want?

I'd like to see that myself personally.
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      12-03-2010, 02:39 PM   #33
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Quote:
Originally Posted by Sniz View Post
yeah man, the stock oil cooling setup on my '99 M3 has never seen over 210 and thats with the oil cooling my large turbo.

I have never ran it on a road course (one day I hope!) but on hard street driving or stop in go in 110F heat it still doesnt go above 210.
The only thing I can think of is that BMW wants the high temperatures for emmisions reasons. I understand the carbon argument, but I cannot understand the logic for a 230-235F oil thermostat.
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      12-03-2010, 02:40 PM   #34
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Quote:
Originally Posted by JPSlick View Post
I'd like to see that myself personally.
I will try to post that when I get some time. This writeup was a bit time consuming. LOL!
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      12-03-2010, 02:59 PM   #35
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Quote:
Originally Posted by Former_Boosted_IS View Post
I will try to post that when I get some time. This writeup was a bit time consuming. LOL!
Of all the PICS! I just wish we could change out the thermostat, that would be a neat solution.
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      12-03-2010, 03:01 PM   #36
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Originally Posted by JPSlick View Post
Of all the PICS! I just wish we could change out the thermostat, that would be a neat solution.
When you see how tucked away it is in there you will understand why it cannot be replaced. It is molded into the actual housing.
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      12-03-2010, 03:09 PM   #37
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Quote:
Originally Posted by Former_Boosted_IS View Post
When you see how tucked away it is in there you will understand why it cannot be replaced. It is molded into the actual housing.
How practical would be for a company to make an entire oil filter housing replacement with a new thermostat?
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      12-03-2010, 03:11 PM   #38
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Originally Posted by JPSlick View Post
How practical would be for a company to make an entire oil filter housing replacement with a new thermostat?
My real opinion? Very, very expensive. It would be for N54s only and no other application whatsoever. STETT did thist he right way in my opinion.
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      12-03-2010, 03:13 PM   #39
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Originally Posted by Former_Boosted_IS View Post
When you see how tucked away it is in there you will understand why it cannot be replaced. It is molded into the actual housing.
It can be unscrewed from the housing though can't it? You can see them here on the left side of the front cover.

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      12-03-2010, 03:14 PM   #40
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Quote:
Originally Posted by Former_Boosted_IS View Post
My real opinion? Very, very expensive. It would be for N54s only and no other application whatsoever. STETT did thist he right way in my opinion.
Hmm, ok last question. (sorry).

How practical would it be to somehow force the OEM thermostat open always.... and then possibly install an aftermarket thermostat somewhere else?
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      12-03-2010, 03:20 PM   #41
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Quote:
Originally Posted by Former_Boosted_IS View Post
My real opinion? Very, very expensive. It would be for N54s only and no other application whatsoever. STETT did thist he right way in my opinion.
I def. agree with that. I realize now that the thermostat is inside the outside cap but it would be pretty cool if someone made an aftermarket one too see what the differences would be with just the stock oil cooler. Do you think stett would sell the thermostat housing separately? If so theres a place around the corner that makes custom steel braided lines that can be any lengths with any time of fitting on either side. With custom lines make it could be possible to hook the stocker up to the stett housing.

OR

If stett or other vendors out there are looking for something to do, MAKE AN AFTERMARKET THERMOSTAT HOUSING THAT HOOKS UP TO THE STOCK OIL COOLER!!
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      12-03-2010, 03:22 PM   #42
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great review and write up
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      12-03-2010, 03:23 PM   #43
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Quote:
Originally Posted by raceyBMW View Post
It can be unscrewed from the housing though can't it? You can see them here on the left side of the front cover.

To be honest, I am not sure those screws remove the thermostat or not. I didn't try to take apart my stock part, so I am not sure. I can look more closely at it over the next couple of days.
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      12-03-2010, 03:24 PM   #44
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Originally Posted by JPSlick View Post
Hmm, ok last question. (sorry).

How practical would it be to somehow force the OEM thermostat open always.... and then possibly install an aftermarket thermostat somewhere else?
JP, I am no sure it is wise to start to go forcing it open or closed. I personally am not comfortable with that type of a mod on something as critical as oil.
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