|
260 oil temp with 34 row cooler.... help!
I hit 260 plus today on track with the 34 row from z1. It was 90F outside in TX but i was hoping for something better. I am trying to figure out a fix before next summers track sessions. Hopefully next month we'll be in the 70s lol!
My ideas are running a second oil cooler or making some sort of air funnel for the radiator / oil cooler. Has anyone attempted an air funnel or had bad experience with 2 oil coolers? Thanks! |
Try some Tracspec vents for the hood. They are your best beat.
|
Hard to tame 90F plus and high humidity.
|
Changing to a different weight oil and/or a higher volume pump may help.
|
thanks for the advise!
|
Maybe an oil pan spacer to further increase oil capacity, but that’s just delaying the heat buildup, not solving it.
Don’t think there is anything else that’s readily available. |
Quote:
Talked to several people today who were in faster run groups with Zs and they all have the same issues. Have been wanting to avoid cutting holes in my hood to comply with SCCA TT but id rather not stress heat while having fun. |
You can make some air guides behind the bumper to direct air into the oil cooler and radiator. If you do it right. You won't bleed air around the sides. All air would have to go through the cooler and radiator. The hood vents will really help out.
|
Quote:
|
May want to remove the thermostatic sandwich plate (if you have one), possibly not opening all the way up after it gets warm :ugh2:
|
|
Have the Mine's or Varis style "bumper ducts" ever been proven to be effective or not effective?
|
1 Attachment(s)
get your cooler into free air and duct it. mine is in the passenger side vent here. I've run on 105 degree days with a 40 min session without breaking 230
|
Quote:
I am trying a few things, 1st track spec hood vents, 2nd a 1" duct so air is more forced to go through the cooler rather then around, 3rd relocate it to the side with the stillen bumper. |
Really don't want to buy a stillen bumper... think i'm gonna have to work on some guide to force air through the cooler / radiator vs spilling out the sides. probably do vents at some point too
|
I have 2*34row coolers in parallel and my max track temp is 240F in the South East Asia crazy weather.
|
Engine oil you are using can affect temps, I had used multiple types, Mobil, Motul, Liqui Moly, Castrol, and oem nissan, mostly 0w40 or 5w40. While I cannot comment on oem, Moly was the worst, the temps rise quicker than others. Mobil wasn't too far. Best luck was with Castrol and Motul.
Also there is another thing in my mind, would fuel affect temps? like if the tune is aggressive for the used fuel, would it affect temps? Last trackday, which was the hottest and most humid day I participated in, I added boostane to my fuel and used the least aggressive map, my temps was climbing the same as when I use the same tune on cooler days, I know I needed to try more aggressive tune same day to confirm my assumption. |
Quote:
This cooler holds 0.95 qt., normal series 6 34 rows hold 0.75 qt. so it should have a slight improvement. Quote:
|
Quote:
|
Quote:
|
Quote:
|
Quote:
|
Quote:
With parallel coolers you have the same pressure drop compare to just one cooler. If you run them in series then you lose more oil pressure. Quite a few cars have parallel oil cooler design from factory actually! iPhoneTapatalk |
Quote:
Quote:
|
Quote:
My redline is set at 8,000. I normally shift at 7,500. The extra 500 rpms I use for those moments when it's best not to up shift and then down shift for the corner coming up. |
oh I forgot one thing. Make sure you run the biggest lines your cooler can support!
|
Quote:
Hood venting... SPAL fan on the oil cooler with 200 degree thermo switch heres my setup though my video sux lol https://www.youtube.com/watch?v=sJ2DT4QjoB8&t=1s |
Vents
Bit of a thread "revival" but hood vents will help more than you think. As long as you go with functional ones such as the Trackspec kit. ~10 degrees on my car with 34 row cooler. Although I do have a splitter which will help the generation of a higher pressure zone in front of the cooler; the vents reduce the pressure behind the cooler.
OP did you reach any decision yet? |
I've been running a 72 row since 2011. It has the lowest pressure drop due to high row count and short rows. Running 10 AN fittings with high flow 90 degree bends will help. You can mount the oil cooler directly in line with air flow. I still reached 250+ temps, but the car never pulled power during 30 minute sessions. Another option is Improved Racing. They have extremely efficient oil coolers that hold more oil and are multipass. They also make amazing sandwich plates, adapters, and remote filter plates.
|
I have the Z1 34 row cooler on mine. I helped JL install his BP turbo. He has the FI 34 row cooler. One thing I noticed. The FI uses AN -8 fittings and hose. My Z1 uses AN -10 fittings and hose. The Z1 stuff is bigger, so more flow.
|
I have a 72 row oil cooler like SS and my experience has been the same and I am boosted. Temps can hit 260 but the car never goes into limp mode. My oil temps vary depending on the length of the track and traffic well cause temps to rise due to restricted air flow.
|
I ended up adding the trackspec vents... but due to the outbreak of a light beer i have yet to see the results. hopefully in May but not crossing fingers.
|
Quote:
Sent from my SM-G965U using Tapatalk |
the ViS Racing "Invader" hood appears to be effective. I think a guy named Bullit used it and Z1 has it one one of their cars
Fujimura works based on anecdotal evidence of users here Varis as well based on rep + positioning of the vents |
Quote:
Your gonna need a better bumper paired with a better oil pan and hood vents. |
First track day update since the install.. IT WORKS! never saw higher than 240 and its 90F outside today in TX.
|
Quote:
|
Let us know what your oil temps look like when the outside temps get to 100F+ :tiphat:
|
Quote:
|
Im new to the oil cooler gang! Since the Covid and the track shutting down, I usually go for a canyon run. While the temps are lower then 90, elevation is above 4900 ft. Last two times before the oil cooler, it was 255 - 260. Now, with the oil cooler, its closer to 210. I wonder adding a water spray on the oil cooler will help drop the temp.
|
| All times are GMT -5. The time now is 07:36 AM. |
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2