What's the verdict on the need of oil cooler?

[brillo]

Originally Posted by ATL BRZ

Perrin did extensive testing and posted results in their blog: http://blog.perrinperformance.com/pe...-s-oil-cooler/

They measured a loss in power as the oil temps went past 100C

That was my reason for asking, wanted to see if another party could confirm the same issue in the real world

[Surok]

lol its over 100 almost as soon as you turn the car on.

[circuithero]

I have a suspicion that that test was done on the car running the Vortech. If so, then the heat loss is a bit inflated due to the heat soak from the forced induction. I would like to know exactly what car they did those tests on.

[Huehuecoyotl]

Originally Posted by circuithero

If so, then the heat loss is a bit inflated due to the heat soak from the forced induction. I would like to know exactly what car they did those tests on.

What are you talking about or referring to, can you please clarify?

[Shankenstein]

Originally Posted by circuithero

I have a suspicion that that test was done on the car running the Vortech. If so, then the heat loss is a bit inflated due to the heat soak from the forced induction. I would like to know exactly what car they did those tests on.

Sadly heat soak shouldn't be a major issue for the Vortech kits:

1) The heat given to the intake air by compression is inherent in all FI setups.

2) The amount of heat delivered to the block via conduction is pretty low. The Vortech kit has one thick aluminum mounting bracket and one very thin support to the block. Initially, I was skeptical of the design, but the more I've looked at it... it seems to be just enough to support the supercharger, isolate it thermally, and help dissipate the heat it generates. I still won't be buying one, but I tip my hat to their engineers for finding an elegant compromise.

[Surok]

anyway!! yes you do need an oil cooler. damn australia!

[robispec]

Originally Posted by brillo

That was my reason for asking, wanted to see if another party could confirm the same issue in the real world

yes in the real world at the race track top speeds were reduced ten miles per hour...i could feel the lack of top end power...

[brillo]

Setting the power loss issue aside for the moment (not saying it isn't important) is there any reason other than power loss that a non FI FRS needs an oil cooler for HPDE days? I've been asking around on bobstheoilguy forums about oil temps and 260-270 doesn't seem to concern folks as far as lubrication with a good synthetic oil.

[Dave-ROR]

Originally Posted by brillo

Setting the power loss issue aside for the moment (not saying it isn't important) is there any reason other than power loss that a non FI FRS needs an oil cooler for HPDE days? I've been asking around on bobstheoilguy forums about oil temps and 260-270 doesn't seem to concern folks as far as lubrication with a good synthetic oil.

We are seeing 290-300 degrees on STOCK engines at the track, how are you only seeing 260-270??

I don't worry about 270 though, hell the endurance race car does 290-300+ (gauge stops at 300) for 14-24 hours. :shrug:

[p00mba]

if i'm using my car as a daily driver as well as some track duty, and running an oil cooler would you say it would also benefit me to run 5w30 oil instead of the 0w20 or what would you guys recommend?

[Dave-ROR]

Originally Posted by p00mba

if i'm using my car as a daily driver as well as some track duty, and running an oil cooler would you say it would also benefit me to run 5w30 oil instead of the 0w20 or what would you guys recommend?

I run 0w30/5w30 because I noticed low (er than I wanted) oil pressure near redline.

Occasional track use.. I probably wouldn't bother.

[brillo]

thanks Dave, I thought I read stock cars were seeing 260-270 without a cooler, temps that higher make me more concerned.

[smbstyle]

Originally Posted by brillo

thanks Dave, I thought I read stock cars were seeing 260-270 without a cooler, temps that higher make me more concerned.

I took my stock BRZ, 1k miles on the odometer, only mod was Hawk pads, to Sebring the first weekend in June and using a ScangaugeII OBDII port reader, I saw oil temps stay consistently in the mid to high 290s during the session on Day 1, and at one point touch 300*f. For some reason the second day the temps stayed around the high 280s to the low 290s, but the ambient temp was the same.

Granted, that is from the stock oil temp sensor, and I am not sure where the stock oil temp sensor is mounted, which may/may not have an effect on the temps that are being read.

Water temp however was perfectly fine. If I didn't have the scangauge, I would have no idea that the oil temps were that dangerously high.

[BatStig]

I have the Perrin oil cooler.

At the track in 80ºF I saw 249ºF tops.