06-08-2021, 03:33 PM | #1 |
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High Ambient Temp Track Use / N55
Has anybody done a track day around 105-109F degress in an N55. I have bootmod3 OTS S2 and debating pulling off the tune and downpipe to get ready for next weeks track day. Projected temperatures will be in the 105-109 range....
Its either that or I drive my e36 lol. |
06-08-2021, 04:55 PM | #2 |
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Just pull down the tune to stage 1 or oe, that should give you enough headroom for iats. I don't tbinm your F30 has an IC does it?
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06-08-2021, 05:08 PM | #3 |
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Yeah ive been running that ebay special Gplus brand one for awhile. Got a few track days on them! I can pull it down to stage 1 if need be!
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06-08-2021, 05:17 PM | #4 | |
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F30 335iX | Remus Axleback | Fabspeed Catted DP | VRSF Comp IC | 18X9 ET35 19lb MT1 | 255/40/18 ECS | Ohlins RT Millway Street | Millway Control Arm Bushings | Turner Endlinks | TMH 75mm 14x1.5 Studs | BMW MPerf LSD | XDelete | Pipercross Filter | MHD Stg2 93
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06-11-2021, 11:39 AM | #5 |
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I had some trackdays with my M235 in recent years, there was very hot summer here in Switzerland!
Of course it's very hard on the car, but the car will put itself in limp mode if you get up to temperatures that are concerning. Oil temperature for example is no problem at all, I would only start going slower when the oil is going above 265F. The car will also pull timing for sure, if tuned and driven hard on the track. Just go for 10 minutes full attack and let it cool for some laps, that's how I've done it. Because it will not only be a problem for the engine but also for the whole car! |
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06-20-2021, 11:06 PM | #7 | |
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06-25-2021, 09:15 AM | #8 |
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Drives: 2013 BMW 335i M-Sport
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As previous posters have said, just revert to the OE tune. Remember your car does not have a coolant gauge. I would have something monitoring and displaying real time coolant, trans, oil, and tire temps. If you get close to the limit on any then ease off and do a cooldown lap or two.
The car should be fine though. Another thought, if you are still using the OEM intercooler you need to upgrade for track use. Your tune will be more consistent in daily driving situations and your engine will be more protected on track. Air temps coming off the turbo can approach 500F during track duty. This is wayyyyyy too much for the tiny OEM intercooler to dissipate. I recommend something like the VRSF race FMIC. I've used it for years and it has been extremely effective even in 100+ degree temps. Remember the lower your air temps the lower the cylinder temps will be. Higher ethanol content will also reduce cylinder temps as well. However more than 20% is not recommended without additional supporting mods. |
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06-25-2021, 01:13 PM | #9 | |
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Tire temps can be monitored via coding and the factory display. Also, are you concerned that the VRSF race FMIC is so massive that it blocks some airflow going into the radiator? |
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06-28-2021, 08:19 AM | #10 | |
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With a wireless OBDII dongle apps like BimmerLink or DashCommand can display real time data on a cell phone. I use this during AutoX sessions to display temps for coolant, oil, and trans on my phone which is mounted on my line of sight. In terms of the VRSF race FMIC blocking the radiator, I'm not concerned at all. Airflow passes through the FMIC to the radiator behind and is of no concern. This is no different than the heat exchanger and radiator that are stacked on the S55 in the F8X M cars (which block significantly more radiator surface area). See the attached image. Last edited by ClevelandBeemer; 07-01-2021 at 07:45 PM.. |
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07-01-2021, 11:00 AM | #11 | |
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07-01-2021, 07:41 PM | #12 |
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Hi there. I unfortunately do not have any logs from track use. I'm usually by myself in the car and I don't want my laptop to be destroyed. That said depending on ambient temps I will either run no tune or up to 6 PSI over stock. If you are not comfortable running the tune simply use the stock map. I'm my own warranty so I'm not as concerned about breaking anything. After 6 years of ownership the car has held up well to my abuse.
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