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Old 08-06-2019, 02:21 PM   #5069
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It looks like you guys may need some hood vents to help evacuate the engine bay heat...
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Old 08-06-2019, 03:46 PM   #5070
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It looks like you guys may need some hood vents to help evacuate the engine bay heat...
I want some, I just ran out of money. Maybe for x-mas
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Old 08-06-2019, 03:52 PM   #5071
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When I was NA I had a stock radiator and a Perrin oil cooler, tracks temps hovered in the 260 range so from my point of view, those temps while FI are not that bad.

Now I have the JR dual cooler, will be on track Labor Day weekend so we'll see how that goes.
When I was NA, I had oil temps at around 220. The JR cooler is a beast!

I guess I didn't expect it to jump as much as it did, to the point where it isn't safe to run in hot weather as currently setup.
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Old 08-06-2019, 04:34 PM   #5072
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Originally Posted by steved View Post
Setup:
2013 FRS
JRSC factory tune
JR dual radiator/oil cooler kit
Stock bumper/etc
OEM coolant (new)
Mobile1 5w30

Constraints:
No availability of E85

First time running JRSC at the track yesterday at Mission raceway near Vancouver. If anyone is familiar with the track its very tight and pretty short, front straight top speed with my setup was about 145km/h, and there are 3 straight sections. Track is known for being really hard on brakes, so you can probably imagine lots of running out the gears in 2/3 between the corners which means a lot of engine heat.

I threw a CEL after about 4 laps when ambient temperature was 29C (84F), coolant temperature sensor low voltage. My coolant temperature was pushing 250F+, and my oil temperature was pushing 270F. In follow up sessions I could get in 2 laps pushing pretty hard before oil temps would get closer to 260, and I'd have to manage heat by short shifting and not running WOT. Bit of a bummer to be honest.

Last session of the day I turned the heat on full and vented it out the passenger side, and my coolant temp didn't go above 240. I was able to run a full session like that, but I'm obviously uncomfortable with this amount of heat.

As an observation; a new Civic type R was also having heat issues, but that's nothing new. None of the other factory turbo'd cars at the track were doing limpy laps other than an STI.

I *thought* the dual radiator kit would work well but I'm wondering if it was a mistake to purchase it instead of the standalone oil cooler.

I'm looking for any ideas on how to reduce engine oil and coolant temps. I've thought about:
- venting the hood, but I'm trying to keep the car pretty low key exterior wise, and I'm doubtful it would make a big enough difference to be worth it
- changing coolant
- switching to a JR standalone oil cooler
- wrapping the stock header, not sure if this is even possible? I haven't looked at it yet, but usually oem headers don't have a lot of clearance for wrapping. I still have the oem heatshield so it would have to come off - not sure what decrease in temp I'd get

Overall I feel that there likely isn't one solution here and its probably going to be a combination of multiple fixes to get the temperature down, I'd also like some feedback if I'm going to put a ton of effort/time/money into trying to solve this issue and it might not actually be solvable.
Make sure all your factory ducting is trimmed around the FMIC piping and back in place. Also make sure the factory foam was replaced onto your JR DROC.

Hood vents will DRAMATICALLY increase cooling.

As an example, my 360whp turbo car on a stock radiator doesnt overheat in significantly higher ambient temps, with just TrackSpec hood vents.

https://www.counterspacegarage.com/t...s-brz-frs-gt86
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Old 08-06-2019, 04:35 PM   #5073
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I'm also dealing with very high oil and coolant temps. I'm running the dedicated JR oil cooler with the setup integrated with the intercooler and rotrex cooler.

I saw 262F oil temps during a similarly hot track day this weekend. Really frustrating as I though I'd be rock solid in terms of heat management.
Make sure those OEM trim pieces are in place next to the FMIC. Without them, you're losing nearly half your airflow through the radiator and cooling stack.

Air goes the path of least resistance.
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Old 08-06-2019, 04:42 PM   #5074
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Originally Posted by steved View Post
Setup:
2013 FRS
JRSC factory tune
JR dual radiator/oil cooler kit
Stock bumper/etc
OEM coolant (new)
Mobile1 5w30

Constraints:
No availability of E85

.
E85 is available at Northside Petroleum in New West.
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Old 08-06-2019, 06:12 PM   #5075
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E85 is available at Northside Petroleum in New West.
Ok that's true, I should have said not easily available
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Old 08-06-2019, 06:19 PM   #5076
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Quote:
Originally Posted by CSG Mike View Post
Make sure all your factory ducting is trimmed around the FMIC piping and back in place. Also make sure the factory foam was replaced onto your JR DROC.

Hood vents will DRAMATICALLY increase cooling.

As an example, my 360whp turbo car on a stock radiator doesnt overheat in significantly higher ambient temps, with just TrackSpec hood vents.

https://www.counterspacegarage.com/t...s-brz-frs-gt86
Thats a good point, I'll check the foam bits tonight I have a feeling its still sitting on the top of my old rad :/
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Old 08-07-2019, 12:41 AM   #5077
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Originally Posted by CSG Mike View Post
Make sure those OEM trim pieces are in place next to the FMIC. Without them, you're losing nearly half your airflow through the radiator and cooling stack.

Air goes the path of least resistance.
I don't recall this step in the install manual, but it makes sense. IIRC they would need to be trimmed to fit around the L/R FMIC pipes?

Time to rip off the bumper again
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Old 08-07-2019, 12:43 AM   #5078
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I don't recall this step in the install manual, but it makes sense. IIRC they would need to be trimmed to fit around the L/R FMIC pipes?

Time to rip off the bumper again
It's only mentioned. You can also replace with anything that closes off the area!
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Old 08-07-2019, 12:49 AM   #5079
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It's only mentioned. You can also replace with anything that closes off the area!
Cool, I'll try that.

Will this help oil temps as well? How about hood vents? I get that both help with coolant, but I'd love to never see 262F for oil pop up on my AiM ever again!
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Old 08-07-2019, 03:28 AM   #5080
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Cool, I'll try that.

Will this help oil temps as well? How about hood vents? I get that both help with coolant, but I'd love to never see 262F for oil pop up on my AiM ever again!
You're on a DROC? Then yes!
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Old 08-07-2019, 10:19 AM   #5081
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You're on a DROC? Then yes!
I have the track oil cooler mounted alongside the rotrex cooler.
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Old 08-07-2019, 01:23 PM   #5082
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I have the track oil cooler mounted alongside the rotrex cooler.
Then also yes, but to a lesser degree. However, your setup has more cooling for the oil than the DROC.
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