09-27-2017, 09:50 AM | #23 |
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I experienced the same on these Hot Texas Track days. Power is noticeable less in the afternoon versus the 1st cool morning runs! I have decided not to run in 90+ degF days in Houston!
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09-27-2017, 10:07 AM | #24 |
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10-30-2017, 03:50 AM | #25 |
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FWIW, I was at Thermal yesterday and the M Performance Driving School. Temperature in the high 90's, three groups consisting of 5, 5 and 6 drivers, alternating between M3's, M4's and M2's. We literally beat the snot out of these cars all day long. Last event of the day was two timed laps around what they call the long auto cross course with a third so called cool down lap. During the day I felt the cars including the M2's stayed consistent in all areas, including power and braking. Going back today for the last day, should be cooler. I quess what I'm saying is, I was pretty impressed by the stamina of these cars, especially being driven at 90 to 100% by multiple drivers in the heat pretty much all day long. I doubt your own car would see so much action in one day. In closing I didn't see any evidence of power loss due to heat soak.
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10-30-2017, 07:39 AM | #26 | |
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11-11-2017, 09:11 AM | #27 |
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11-28-2017, 02:16 PM | #28 |
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Curious, whats the problem with the stock oil cooler? I haven't taken a look at it yet, but that's crazy that oil temps are that bad even if the oil cooler isn't particularly efficient. Where are these aftermarket oil coolers making their efficiency gains, is it the surface area increase by going double-layered? That's not that much of a surface area increase by looking at the pictures. As I understand it, that's where most of the benefit comes from aftermarket IC's on this platform when looking at a system that utilizes a dual-core setup like this and Dinan.
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11-28-2017, 05:52 PM | #29 | |
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As soon as you start adding boost, a larger IC is needed to keep the car from getting hot and pulling timing. With the Dinan IC and Stage 1, I’ve only seen the temp gauge move up and felt timing pulled on a 105F open track day doing 30-45 min runs with 15-30min breaks. I wasn’t logging water and oil temps then, so I do not know if the radiator or oil cooler would give the most benefit after the upgraded IC. I’ve heard the former. I’ll log temps the next time I’m out. So, if your car is stock and you’re only doing 20-30min sessions, no cooling upgrade needed, IMO. If you add a little boost and/or are doing open track events, you need a larger IC. If you add a lot of boost or are going non-stop, likely a larger radiator, then oil cooler. |
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12-14-2017, 06:48 AM | #30 | |
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02-27-2018, 05:34 AM | #31 |
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I live in AZ so we have the extreme heat most don't. When I drive my car hard on 110-115 degree days I don't get the same pep as when its cool outside or the car is cool. Noticed it quite a bit on one of the hotter days last summer. I am getting ready to track the car so I have picked up the CSF intercooler to do that upgrade, from what I understand it should resolve this issue pretty well.
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02-27-2018, 06:06 AM | #32 | |
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03-01-2018, 01:15 AM | #33 | |
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03-01-2018, 01:17 AM | #34 | |
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03-01-2018, 04:22 AM | #35 | |
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03-02-2018, 11:44 AM | #36 |
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I run a stock engine, with just wheels/tires, track pads and track brake fluid.
There is no doubt in my opinion that the M2 in stock form gets heat soak in high ambient temps. I have some comparable naturally aspirated cars that run with me that I can pull on the straight in 60-70 temps, but when the 90+ degree temps arrive I cannot beat them down the straight anymore. Additionally, my lap times suffer also. That said, the car feels great in either situation, it is not like there are any issues, it just gets a little slower. Every stock turbo car I have ever driven does this. The M2 actually fairs much better than most, but it still heat soaks. The the glass half full part is, it will keep chugging along just as reliable as ever no matter what ambient temp. I have run S54's N54's, N55's and S65's over the years and these N55's, although older tech now, are solid engines in stock form, especially the M2 version. My S65 grenaded in stock form due to the rod bearings (thank goodness for warranty), so I appreciate the reliability of the N55 for sure, even with a little heat soak. I applaud the beautiful options from CSF for those who want to maximize their car for super hard track work and extra hot days. So it kind of comes down to personal preference instead of an absolute necessity, and I like that. |
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03-02-2018, 07:01 PM | #37 | |
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https://coolshirt.com/product/kart-bag-system/ https://apexperformance.net/product/...ooling-system/
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