Combating the heat

[sw20kosh]

@CSG Mike

Us turbo guys up here in NORCAL need cooling help. We have tried the stock (or koyo) radiator with full ducting + air-oil cooler (perrin). We are still getting 230 F coolant and 260 F oil. The biggest issue being the coolant.

Your next recommendation would be SPAL Fans + shroud + SPAL relay? Would these fans even be on at higher speeds? I was told by a tuner that the ecu shuts down the stock fans at higher speeds to prevent over spinning them?

[AJPG]

@sw20kosh
My oil cooler is an custom set up, running on tropic and holding track practice and no heat soak. Unorthodox? Yes.
2 mocal 16 rows each front mount, never seen 220f, it use 7.5qts
Use the koyo rad with oem fans, use to go up to max 225f before the oil cooler, but oil was +270f. Currently coolant 210f and from time to time have to refill the coolant reservoir.

*If using the car to get 30MPG temps are coolant 194f, oil 185f, intake 95f...

[CSG Mike]

Originally Posted by sw20kosh

@CSG Mike

Us turbo guys up here in NORCAL need cooling help. We have tried the stock (or koyo) radiator with full ducting + air-oil cooler (perrin). We are still getting 230 F coolant and 260 F oil. The biggest issue being the coolant.

Your next recommendation would be SPAL Fans + shroud + SPAL relay? Would these fans even be on at higher speeds? I was told by a tuner that the ecu shuts down the stock fans at higher speeds to prevent over spinning them?

@Carolinadyno 's shroud, with 12" 20A (paddle blade) SPAL fans + better oil cooler.

We've never seen temps that high with the JR cooler, but it's also got a significantly larger core.

[sw20kosh]

Originally Posted by CSG Mike

@Carolinadyno 's shroud, with 12" 20A (paddle blade) SPAL fans + better oil cooler.

We've never seen temps that high with the JR cooler, but it's also got a significantly larger core.

Your compressor isn't water cooled nor does it share its lubircation system with the engine.

Any comment on the fans shutting down at speed?

[Reaper]

@AJPG and me both have something in common other than no overheating problems. HUGE oil capacity. Im almost at 8 qts. Why is no one running larger pans?

[sw20kosh]

Originally Posted by AJPG

@sw20kosh
My oil cooler is an custom set up, running on tropic and holding track practice and no heat soak. Unorthodox? Yes.
2 mocal 16 rows each front mount, never seen 220f, it use 7.5qts
Use the koyo rad with oem fans, use to go up to max 225f before the oil cooler, but oil was +270f. Currently coolant 210f and from time to time have to refill the coolant reservoir.

*If using the car to get 30MPG temps are coolant 194f, oil 185f, intake 95f...

I don't know if having more oil cooling will alleviate the coolant problem. Especially if the oil coolers are blocking flow to the radiator and are shedding heat into the radiator.

Stock cars see 280 deg oil temps but coolant never goes above 200 n track. This leads me to believe that cooling down the oil wont fix the coolant temps I am seeing.

[CSG Mike]

Originally Posted by Reaper

@AJPG and me both have something in common other than no overheating problems. HUGE oil capacity. Im almost at 8 qts. Why is no one running larger pans?

I've never seen evidence of a larger pan solving the problem, since the pan doesn't increase heat dissipation.

However, I haven't seen evidence in the contrary either...

Originally Posted by sw20kosh

Your compressor isn't water cooled nor does it share its lubircation system with the engine.

Any comment on the fans shutting down at speed?

They don't shut off AFAIK....

[Reaper]

I would have spent the money on a 8 qt pan instead of the laminova is all im saying.

[BRZPDX]

My Vis AMS vented hood should arrive this Thurs/Fri, and will report if I see any significant changes to temps. So far in Oregon, we see 95F ambient, and my IAT will be about 101F.

Current set up:
Stock Rad
Stock Fan
Tomioka air cooled oil cooler (behind fog light)
Transmission cooler (behind FMIC, but has its own fan)

Temps during stop-go traffic:
130F IAT
225 ~ 230 peak oil temps
205 ~ 220 coolant temps (when fan kicks on, it drops, going up and down..)

High way speed ~65mph:
+6 ambient temp IAT
205 oil temp
195 ~ 200 coolant temp

Will just the FB radiator shroud help with front mount turbo set ups? I'm thinking if there is some kind of barrier between the hot up pipe/turbo to the radiator, it may help some...

Summer temp sucks for boost.

[AJPG]

Originally Posted by sw20kosh

I don't know if having more oil cooling will alleviate the coolant problem. Especially if the oil coolers are blocking flow to the radiator and are shedding heat into the radiator.

Stock cars see 280 deg oil temps but coolant never goes above 200 n track. This leads me to believe that cooling down the oil wont fix the coolant temps I am seeing.

Ok let's think about it for a couple of seconds!
Our little engine/oven have 2 fluids that get hot, as you mention in stoke form oil temps are... Well high (more like obscene high, but that's for my taste) and coolant are more or less in range, on top of that you add a turbo that get a big part of the heat from the exhaust and transferred to the oil (this is a side effect, not what is intended, but you know that I will let you with that!

I do agree that having more oil doesn't necessary improve oil cooling, but having 32 rows of oil cooler is another story. I would recommend my set up for hot climate only, and have to use thermostats. All the temps I post we're under abuse in 105f with humidity 80%, sessions of 30 min. Could been longer but there was more people ready to use the track.

As for the front mount oil coolers I was concern with that 2 years ago, theoretically you are correct, but in practice it seems to work just fine...
As side note I do enjoy wearing out my cars but I do give them the best opportunity (good oil/gas, check temps and levels, preventive maintenance with every oil change.

If you are 100% sure that your cooling system if enough then have to look at ARF, turbo size, WMI?

BTW FI 2 years

Hope this help!

[sw20kosh]

How many coolant temp sensors does this car have and can ECUTEK tap into all of them?

[King Tut]

Originally Posted by romin

Check out:
http://www.killerchiller.com

I am actually surprised none of the Innovate guys have tried to get them to make one for that kit.

[AJPG]

Originally Posted by Reaper

I would have spent the money on a 8 qt pan instead of the laminova is all im saying.

Nice built!
About the larger oil pan, well it is a good idea IF you are NOT planing to make prolong high Gs, as it will be more vulnerable to oil cavitation and BOOM new engine! For 99% of FRS/BRZ owners this will never be an issue.
I prefer to put the oil on places that Gs could not play with it (lines, oil coolers) isn't a dry sump but that's not what we are discussing here

[AJPG]

Originally Posted by BRZPDX

My Vis AMS vented hood should arrive this Thurs/Fri, and will report if I see any significant changes to temps. So far in Oregon, we see 95F ambient, and my IAT will be about 101F.

Current set up:
Stock Rad
Stock Fan
Tomioka air cooled oil cooler (behind fog light)
Transmission cooler (behind FMIC, but has its own fan)

Temps during stop-go traffic:
130F IAT
225 ~ 230 peak oil temps
205 ~ 220 coolant temps (when fan kicks on, it drops, going up and down..)

High way speed ~65mph:
+6 ambient temp IAT
205 oil temp
195 ~ 200 coolant temp

Will just the FB radiator shroud help with front mount turbo set ups? I'm thinking if there is some kind of barrier between the hot up pipe/turbo to the radiator, it may help some...

Summer temp sucks for boost.

Hi
Nice to see some AT oil temp! I was about to install a sensor for that (know that I think about it I haven't look for it on the logs, also haven't seen oil pressure)..., and wondering how much heating dissipation capacity is need for the AT.
How do you set your oil cooler(s)?
I have the koyo and coolant temp are in range 195-208f, intake 120f, oil 210f, that was today with a evo (the same evo every week, at least ones). Out side a bit hotter 106f.