What's the verdict on the need of oil cooler? - Page 20 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

smbstyle · 08-18-2013, 05:02 PM

Ran at Sebring again without a cooler.

Last time (June 2013 in the high 80s and low 90s) oil temps on Day 1 were 290-300*, then Day 2 oil temps were 285-294*, and I was running, and then yesterday, with temps in the 90s, oil temps were 278 to 284.

Weird that oil temps keep getting lower and lower.... In June I was running German Castrol 0w30, yesterday I was running the Toyota 0w20, but theoretically the heavier weight oil should help keep oil temps down. Back in June the car had 1k miles on it and it was the first track event with the car, and yesterday was the 3rd event with 2k miles on the clock.

And water temps on every day have been between 205 and 215, so water temp is fine.

Still not convinced on the need for an oil cooler.

Also had the pleasure of seeing this thing on track. Very surprised to see it running stock calipers! Not sure if they are running an oil cooler.

swift996 · 08-21-2013, 08:28 AM

Check out this post I just put up on some data collection.

http://www.ft86club.com/forums/showt...53#post1156053

maj75 · 08-21-2013, 09:10 AM

And where would one find these for sale? I went to a Robispec site and could find no listing for an oil cooler, sandwich plate or anything to do with engine cooling. In fact, no engine part were listed at all...

A link would be appreciated. I am prepping my car for an October Sebring HPDE and need to get a move on.

Quote:

Originally Posted by robispec

whatever oil cooler you want you may like our take off plate.

drilled for sensors too

no thermostatic option available.

Wepeel · 08-21-2013, 11:37 AM

For autocrossers who might be logging... what kind of oil temps do you see?

charged86 · 08-21-2013, 12:19 PM

Quote:

Originally Posted by Wepeel

For autocrossers who might be logging... what kind of oil temps do you see?

Some have said 130

Wepeel · 08-21-2013, 12:23 PM

Quote:

Originally Posted by charged86

Some have said 130

130C? Wow that's a lot hotter than what I would have suspected for autocross.

dsgerbc · 08-21-2013, 01:11 PM

Quote:

Originally Posted by smbstyle

In June I was running German Castrol 0w30, yesterday I was running the Toyota 0w20, but theoretically the heavier weight oil should help keep oil temps down.

Cooler and heavier oil means your pistons are getting fried.

smbstyle · 08-21-2013, 01:36 PM

Quote:

Originally Posted by dsgerbc

Cooler and heavier oil means your pistons are getting fried.

uh, where are you drawing this logic from? care to elaborate how running 0w30 vs. 0w20 will "fry" your pistons?

Thicker oil is going to offer slightly better protection at those high temps. I'm not saying dump gear oil in the car, it's one step increase in viscosity, which Subaru actually recommends for harsh/aggressive driving

dsgerbc · 08-21-2013, 01:56 PM

Heavier oil -> less flow at high rpm -> less cooling of pistons=hotter pistons. Thicker (synthetic) oil does very little in terms of oil film strength. Heavier oil recommendation in the manual is probably a carryover from old manuals written for dyno oil. I just run 0w-20.

smbstyle · 08-21-2013, 02:35 PM

Quote:

Originally Posted by dsgerbc

Heavier oil -> less flow at high rpm -> less cooling of pistons=hotter pistons. Thicker (synthetic) oil does very little in terms of oil film strength. Heavier oil recommendation in the manual is probably a carryover from old manuals written for dyno oil. I just run 0w-20.

Sure, definitely understand. I think the old logic behind running heavier weight is for better protection, but I don't think it's reasonable to say that 0w30 from 0w20 will "fry" your pistons?

WolfpackS2k · 08-21-2013, 03:03 PM

My Subaru service adviser specifically said to run a heavier weight oil if I plan to track the car.

brillo · 08-21-2013, 03:51 PM

is there any issue running a 0w-20 weight oil with an oil cooler as far as oil pressure? I thought I saw someone post about that indicating you needed to up the weight to compensate.

In general I haven't seen Perrin, Mishimoto or any of the folks offering a kit mentioning this. Has anyone tested their oil pressure with a cooler?

smbstyle · 08-21-2013, 03:56 PM

Quote:

Originally Posted by brillo

is there any issue running a 0w-20 weight oil with an oil cooler as far as oil pressure? I thought I saw someone post about that indicating you needed to up the weight to compensate.

In general I haven't seen Perrin, Mishimoto or any of the folks offering a kit mentioning this. Has anyone tested their oil pressure with a cooler?

Yes I believe @Dave-ROR did some testing and found a pressure drop when installing the oil cooler, and that 0w30 fixed the issue, but I'd check with him to verify.

mtimney · 08-22-2013, 07:51 AM

Can someone cite what the oil pressure should be at a specific RPM? I'd like to know to see if I've lost or gained pressure by adding my oil/water laminova cooler.

08-18-2013, 05:02 PM	#267
smbstyle Senior Member Join Date: Apr 2013 Drives: 2013 SWP BRZ Location: Forsyth, GA Posts: 1,008 Thanks: 224 Thanked 681 Times in 302 Posts Mentioned: 26 Post(s) Tagged: 0 Thread(s)	Ran at Sebring again without a cooler. Last time (June 2013 in the high 80s and low 90s) oil temps on Day 1 were 290-300, then Day 2 oil temps were 285-294, and I was running, and then yesterday, with temps in the 90s, oil temps were 278 to 284. Weird that oil temps keep getting lower and lower.... In June I was running German Castrol 0w30, yesterday I was running the Toyota 0w20, but theoretically the heavier weight oil should help keep oil temps down. Back in June the car had 1k miles on it and it was the first track event with the car, and yesterday was the 3rd event with 2k miles on the clock. And water temps on every day have been between 205 and 215, so water temp is fine. Still not convinced on the need for an oil cooler. Also had the pleasure of seeing this thing on track. Very surprised to see it running stock calipers! Not sure if they are running an oil cooler. Last edited by smbstyle; 08-18-2013 at 05:28 PM.

08-21-2013, 08:28 AM	#268
swift996 Senior Member Join Date: Nov 2011 Drives: Subaru BRZ Limited 6MT Location: Winston-Salem, NC Posts: 2,432 Thanks: 712 Thanked 954 Times in 545 Posts Mentioned: 47 Post(s) Tagged: 0 Thread(s)	Check out this post I just put up on some data collection. http://www.ft86club.com/forums/showt...53#post1156053 __________________ Innovate Supercharged Black Limited BRZ 6-Speed MT(Build Thread) 2010 Cadillac CTS-V Sedan M6 w/550whp (Build Thread)

08-21-2013, 03:51 PM	#278
brillo Senior Member Join Date: Nov 2011 Drives: 2013 Firestorm FR-S Location: Houston Posts: 506 Thanks: 18 Thanked 77 Times in 64 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	is there any issue running a 0w-20 weight oil with an oil cooler as far as oil pressure? I thought I saw someone post about that indicating you needed to up the weight to compensate. In general I haven't seen Perrin, Mishimoto or any of the folks offering a kit mentioning this. Has anyone tested their oil pressure with a cooler? __________________ 2013 Firestorm FR-S, MTX, build date 1/13.

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08-21-2013, 11:37 AM	#270
Wepeel Senior Member Join Date: May 2012 Drives: '13 BRZ Ltd Location: PA Posts: 458 Thanks: 265 Thanked 229 Times in 117 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	For autocrossers who might be logging... what kind of oil temps do you see?

08-21-2013, 01:56 PM	#275
dsgerbc Senior Member Join Date: Jan 2012 Drives: BRZ(sold), STI Location: A2, MI Posts: 1,915 Thanks: 176 Thanked 419 Times in 241 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	Heavier oil -> less flow at high rpm -> less cooling of pistons=hotter pistons. Thicker (synthetic) oil does very little in terms of oil film strength. Heavier oil recommendation in the manual is probably a carryover from old manuals written for dyno oil. I just run 0w-20.

08-22-2013, 07:51 AM	#280
mtimney Senior Member Join Date: Mar 2013 Drives: 2013 BRZ Limited Location: NH Posts: 101 Thanks: 14 Thanked 36 Times in 12 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Can someone cite what the oil pressure should be at a specific RPM? I'd like to know to see if I've lost or gained pressure by adding my oil/water laminova cooler.

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