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Old 02-12-2009, 08:41 PM   #1
kc jazz
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Default I'm at a dead-end for an oil cooler on my '05 STI, with FMIC

So I had an oil-temp gauge before and after the TXS FMIC I have went on the car.

Last summer, in like 90ish heat with a ton of humidity, I'd normally see in the 95-100 degrees Celcius. Now, during winter time and with the FMIC, I'm seeing about 90 degrees Celcius during highway driving in 40 degree (fahrenheit) less outside temperature.

Basically...my FMIC resulted in a lot of oil temp increase, and I'm worried about what temps I will see once it's hot out again.

So, I want an oil cooler.

The prosport's seem to have been discontinued, and I need one that'll work with an FMIC. Ideas?

And another question..just to make sure, an oil cooler will solve the problem I'm fairly confident of, and I'm not seeing any noticable (I don't have an aftermarket coolant gauge) coolant temp increases, but could getting a Koyo radiator and a flush help out more, or do an equivalent amount of good?
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Old 02-12-2009, 08:44 PM   #2
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http://forums.nasioc.com/forums/show....php?t=1336091

he took the pics down. hope this helps.
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Old 02-12-2009, 08:47 PM   #3
CKxx
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Your BOV sounds lame
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Is it possible it will just always be around that temp since the stock oil "cooler" is also an oil heater? I'd bet it just stays around those temps once it's warm out again.
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Old 02-12-2009, 09:01 PM   #4
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Yeah, I think those temps sound very normal.
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Old 02-12-2009, 09:18 PM   #5
kc jazz
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Quote:
Originally Posted by CKxx View Post
Is it possible it will just always be around that temp since the stock oil "cooler" is also an oil heater? I'd bet it just stays around those temps once it's warm out again.
well it's just the fact that it's running the same temps now in the 30 degree fahrenheit weather that it used to before the fmic in 85 degree f weather.

i dunno, i guess i could just wait it out till summer. but it's definitely getting warmed up quicker than before, and hotter than it normally was in winter before the fmic.

blah cars are stressful. any brand recommendations?
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Old 02-12-2009, 10:02 PM   #6
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maybe this is a dumb question... but why would a fmic result in higher oil temps?
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Old 02-12-2009, 10:08 PM   #7
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If you did the FMIC you probably turned up your boost too didn't you? That'll run up your oil temps too.

Cars are only stressful when you jerk with them. That's why it's not wise to mod the DD. My subaru's been on stands all winter as I swap parts into it but, I'm not stressed at all. If you want to avoid stress, leave it stock.
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Old 02-12-2009, 10:12 PM   #8
b0nd18t
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wouldnt synthetic oil be a better choice then, seeing as how its more resistant to high temps?
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Old 02-12-2009, 10:14 PM   #9
CKxx
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Your BOV sounds lame
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Quote:
Originally Posted by b0nd18t View Post
maybe this is a dumb question... but why would a fmic result in higher oil temps?
The stock oil cooler/warmer is located where the oil filter attaches. It circulates coolant past the oil. This will, depending on the temperature of the two fluids, either heat the oil to coolant temp, or cool the oil to coolant temp.

FMICs block airflow to the radiator, or at least feed it air that has already been heated by the IC, causing coolant temps, and in turn oil temps, to rise.

...in this particular case, though, I'm willing to bet $1 that it's fine. When it gets hot out again the Tstat will open more and cool the whole system off to the correct operating temp.
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Old 02-12-2009, 10:16 PM   #10
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Your BOV sounds lame
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Quote:
Originally Posted by MasterKwan View Post
If you did the FMIC you probably turned up your boost too didn't you? That'll run up your oil temps too.

Cars are only stressful when you jerk with them. That's why it's not wise to mod the DD. My subaru's been on stands all winter as I swap parts into it but, I'm not stressed at all. If you want to avoid stress, leave it stock.
For the record, I am assuming these temps are steady cruising at 60ish on the highway.
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Old 02-12-2009, 10:30 PM   #11
kc jazz
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- protuned at ~19 psi

- always run synthetic

- i guess i'll wait till it gets way warmer and see how the car reacts
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Old 02-12-2009, 11:57 PM   #12
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I noticed my oil temps rise by 5-10* after installing my TXS FMIC. I also noticed my oil temps drop by about 5* after installing my radiator shroud. I'm willing to bet that you'll see the oil temps drop with an aluminum radiator, but whether or not it's necessary is the question.
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Old 02-13-2009, 12:11 AM   #13
kc jazz
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I'm trying to figure out now whether buying an oil cooler and all the hassle that goes with it is going to be worth the difference of how easy it'd be to throw a Koyo radiator on.
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Old 02-13-2009, 12:23 AM   #14
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Old 02-13-2009, 12:44 AM   #15
MasterKwan
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What are your water temps? For the FMIC to cause the oil temps to raise the water temps would have to be higher too (assuming no boost). Maybe what's actually been revealed is that you need a better radiator.

It's also possible your tune is making the engine run hot. Too much or too little timing or something like that.
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Old 02-14-2009, 02:36 AM   #16
kc jazz
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Quote:
Originally Posted by MasterKwan View Post
What are your water temps? For the FMIC to cause the oil temps to raise the water temps would have to be higher too (assuming no boost). Maybe what's actually been revealed is that you need a better radiator.

It's also possible your tune is making the engine run hot. Too much or too little timing or something like that.
I've never noticed an increase in my water temps..however I don't have an accurate gauge to monitor them.

Maybe I should just try a cooler t-stat and coolant flush for now..see how that works.

Quote:
Originally Posted by mpsti05 View Post
Nice! Do you run either of their products? That top mount is siiick.
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Old 02-14-2009, 02:35 PM   #17
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Here is a pic of the SSAC FMIC, and Process West oil cooler kit. It is installed on 05cgm's STi.



Last edited by TRooper; 02-14-2009 at 02:44 PM.
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Old 02-14-2009, 02:49 PM   #18
kc jazz
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Great! Thanks for the pics. Do you have any clue if he's on the stock radiator?
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Old 02-14-2009, 02:52 PM   #19
TRooper
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He has a Koyo radiator.
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Old 02-14-2009, 06:36 PM   #20
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+1 for the B-Line Top Mount Oil Cooler! Saw big reduction in oil temps. Quality and fitment is top notch too. DroppedClutch is running one of these as well.

check it out

B-Line Motorsports Top Mount Oil Cooler





http://forums.nasioc.com/forums/show....php?t=1569855
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Old 02-14-2009, 08:30 PM   #21
scby rex
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^ pretty nice right there^ Just dont like one extra thing to take off when doing maintence.
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Old 02-14-2009, 11:16 PM   #22
mrubino83
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Quote:
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^ pretty nice right there^ Just dont like one extra thing to take off when doing maintence.
yah def. a nice kit! All Earl's Fittings and Kevlar braided lines. Nice big core, too. Removal time for maintenance in minor, probobly takes me about an extra 10 minutes. Well worth it IMO.


Mike

Last edited by mrubino83; 02-16-2009 at 06:39 PM.
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Old 02-16-2009, 10:02 AM   #23
kc jazz
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Thank you guys a lot. That bline top mount looks siiiiick. I'm probably going to end up ordering one of their products.
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Old 02-16-2009, 11:07 AM   #24
crand002
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What about getting a larger oil pan instead?
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Old 02-16-2009, 05:22 PM   #25
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things are $500+ . Do you guys think i'd need one for stage 2 mods +fmic ?
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