|
Tracking / Autocross / HPDE / Drifting What these cars were built for! |
|
Thread Tools | Search this Thread |
07-27-2021, 07:53 PM | #1 |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,167
Thanks: 18,160
Thanked 16,326 Times in 7,384 Posts
Mentioned: 107 Post(s)
Tagged: 0 Thread(s)
|
Track Heat Management
I have been having an issue this season with heat management and am looking for suggestions.
Car is NA E85 Header is ceramic coated inside and out. FP/OP is not. Driveway Labs hood duct AC Delete Added Koyorad about a month ago Last year I was seeing 220-225F max on coolant temps which I was okay with. This year went E85. Since last year I moved my oil cooler to give it cleaner flow but it is center of my radiator right in the opening. My oil temps have been good, about 210-220F, much lower then before. My water temps where hitting 240F at around 85F ambient. Went to a Koyorad, still seeing 230F and sometimes still approaching 240F water temps during longer sessions 80-85F ambient. I am thinking more hood ducting and moving my oil cooler over to behind one of the fog lights. I haven't really heard too many complaints about water temps NA so I am kind of surprised by this. Again, other suggestions welcome.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
07-28-2021, 12:22 AM | #2 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,871
Thanks: 52,138
Thanked 36,522 Times in 18,923 Posts
Mentioned: 1107 Post(s)
Tagged: 9 Thread(s)
|
Do you lose coolant?
__________________
|
07-28-2021, 12:49 AM | #3 |
Senior Member
Join Date: Apr 2012
Drives: 22 BRZ (Previously 13 FR-S)
Location: USA
Posts: 5,794
Thanks: 2,164
Thanked 4,242 Times in 2,220 Posts
Mentioned: 48 Post(s)
Tagged: 2 Thread(s)
|
Something seems a bit odd about your coolant temps. I’ve logged pretty frequently at the track (93 octane) and the canyons (e85). I think my setups have generally been similar to yours (NA, various catted/uncatted headers, center mount 13 row setrab oil cooler). No hood ducting though.
In the worst conditions, I’ll typically see peaks of 245-247F oil and 210-212F coolant), and I think that’s typically what most frs/brz drivers see (higher oil vs coolant temps). Your temps are the reverse for some reason. What kind of oil cooler do you have? If it’s a massive 19+ row that’s dumping heat into your radiator (especially with the hood ducting), maybe that’s the reason? |
07-28-2021, 12:51 AM | #4 |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,167
Thanks: 18,160
Thanked 16,326 Times in 7,384 Posts
Mentioned: 107 Post(s)
Tagged: 0 Thread(s)
|
Nope. Sent from my iPhone using Tapatalk
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
07-28-2021, 12:54 AM | #5 | |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,167
Thanks: 18,160
Thanked 16,326 Times in 7,384 Posts
Mentioned: 107 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I used to see oil temps like yours when my oil cooler was mounted to the lower tray. The “chin” of the bumper was masking it so I remounted it to the crash beam in the middle of the opening. It is a Setrab 613 core. Sent from my iPhone using Tapatalk
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
|
07-28-2021, 01:00 AM | #6 |
Senior Member
Join Date: Apr 2012
Drives: 22 BRZ (Previously 13 FR-S)
Location: USA
Posts: 5,794
Thanks: 2,164
Thanked 4,242 Times in 2,220 Posts
Mentioned: 48 Post(s)
Tagged: 2 Thread(s)
|
Did you have similar coolant temps as mine (210-212F) when your oil cooler was mounted to the lower tray? Or have your coolant temps always been high?
__________________
"Never run out of real estate, traction, and ideas at the same time."
2022 BRZ Build 2013 FR-S Build |
The Following User Says Thank You to DarkSunrise For This Useful Post: | slockin (07-29-2021) |
07-28-2021, 01:16 AM | #7 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,871
Thanks: 52,138
Thanked 36,522 Times in 18,923 Posts
Mentioned: 1107 Post(s)
Tagged: 9 Thread(s)
|
Could be the air gap between the rads. Try an experiment. Make a shroud behind the oil cooler to keep the air from cutting up between them. Just some aluminum tape should do the trick.
I should get mine out to that CSCC HPDE in August to really beat the piss out of my setup but I'm already pretty sure the results will be similar to my uphill wide open jaunts. Water below 200F. Oil below 190F.
__________________
|
The Following User Says Thank You to Ultramaroon For This Useful Post: | NoHaveMSG (07-28-2021) |
07-28-2021, 01:36 AM | #8 | |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,167
Thanks: 18,160
Thanked 16,326 Times in 7,384 Posts
Mentioned: 107 Post(s)
Tagged: 0 Thread(s)
|
Quote:
It would be 210-220 peaking in the mid 220’s before.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
|
07-28-2021, 01:39 AM | #9 | |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,167
Thanks: 18,160
Thanked 16,326 Times in 7,384 Posts
Mentioned: 107 Post(s)
Tagged: 0 Thread(s)
|
Quote:
This is a good point. I’ll try blocking off the gaps. It isn’t helping I lost some of both my inner fender liners. I am probably venting a good amount of flow out those gaps too.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
|
07-28-2021, 01:54 AM | #10 |
義理チョコ
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,871
Thanks: 52,138
Thanked 36,522 Times in 18,923 Posts
Mentioned: 1107 Post(s)
Tagged: 9 Thread(s)
|
Oh, yeah! I have all the factory shroud in place.
__________________
|
07-28-2021, 08:01 AM | #11 |
Senior Member
Join Date: May 2011
Drives: '23 BRZ
Location: Providence, RI
Posts: 4,584
Thanks: 1,377
Thanked 3,891 Times in 2,032 Posts
Mentioned: 85 Post(s)
Tagged: 0 Thread(s)
|
If you had oil temps <250F and coolant temps <220F before repositioning the oil cooler, I'd just move the oil cooler back where it was and done! Synthetic oil is gonna be fine at WAY higher temps...
|
07-28-2021, 09:47 AM | #12 |
Senior Member
Join Date: Apr 2012
Drives: 22 BRZ (Previously 13 FR-S)
Location: USA
Posts: 5,794
Thanks: 2,164
Thanked 4,242 Times in 2,220 Posts
Mentioned: 48 Post(s)
Tagged: 2 Thread(s)
|
Yeah that's pretty high for that setup (at least from my experience), by about 10-15*.
If your cooling system is in good shape and fully bled, and shrouding is in place, then ducting sounds like a good idea and replacing those damaged inner fender liners like you mentioned.
__________________
"Never run out of real estate, traction, and ideas at the same time."
2022 BRZ Build 2013 FR-S Build |
The Following User Says Thank You to DarkSunrise For This Useful Post: | NoHaveMSG (07-28-2021) |
07-28-2021, 11:49 AM | #13 |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,167
Thanks: 18,160
Thanked 16,326 Times in 7,384 Posts
Mentioned: 107 Post(s)
Tagged: 0 Thread(s)
|
I am rather enjoying the much more stable oil pressures. I will probably shift the oil cooler behind a fog light opening or offset it farther and duct it separately.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
The Following User Says Thank You to NoHaveMSG For This Useful Post: | ZDan (07-28-2021) |
07-28-2021, 11:53 AM | #14 |
Senior Member
Join Date: May 2011
Drives: '23 BRZ
Location: Providence, RI
Posts: 4,584
Thanks: 1,377
Thanked 3,891 Times in 2,032 Posts
Mentioned: 85 Post(s)
Tagged: 0 Thread(s)
|
Are pressures more stable, or just higher in general due to lower temp? My understanding (I haven't logged pressure so I'm going on info from others here) is that the pressure becomes unstable at high rpm due to cavitation rather than from temperature...
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Engine Management | Q2 | Forced Induction | 9 | 12-04-2017 05:37 PM |
heat management, CF hood alternative | Reaper | Forced Induction | 70 | 07-05-2017 01:22 AM |
Rotrex vs Turbo (AVO) for Track use (transient response, IATs, heat management, etc) | glamcem | Forced Induction | 56 | 08-25-2014 06:07 PM |
Top half car covers for cabin heat management on track | dp1 | Scion FR-S / Toyota 86 GT86 General Forum | 2 | 06-26-2014 11:08 AM |
Avo turbo heat management on track | ICantAffordAnLFA | Forced Induction | 18 | 09-09-2013 11:00 AM |