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11-23-2011, 10:57 PM | #89 | |
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11-23-2011, 11:36 PM | #90 | |
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I plan to keep the car long term and it gets really warm here so the goal is preventing any long damage from consistent high oil temps. I think the dual core may be an overkill. Which oil cooler is the best from the research you have done? |
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11-23-2011, 11:41 PM | #91 |
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I think what kills circuit cars is heat and RPMs. I would do everything possible to remove heat from the system: upgraded radiator, an oil system like ERs with the dual cores. Maybe even tranny/diff cooler too.
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11-23-2011, 11:47 PM | #92 |
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Imagine that huh! ... temps at what it was designed to be at. Be interesting to see the oil temps of other cars that don't have oil temp gauges.
Where is it stated that 120 deg is too high and will damage the engine over time?
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11-23-2011, 11:48 PM | #93 | |
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11-23-2011, 11:55 PM | #94 | ||
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11-23-2011, 11:56 PM | #95 | |
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11-24-2011, 12:01 AM | #96 | |
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11-24-2011, 12:03 AM | #97 |
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I recall Dackel mentioning that somewhere
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11-24-2011, 12:09 AM | #98 | |
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What temps are you seeing on the strip, is that the 120+ you mention? Remember BMW did not ship the N54 with an oil cooler to start with, so does that mean we should rip out the OEM unit?? The more I think about it and read from other members the bigger single unit where the stock one is sounds like the best compromise? I am keen to hear back from JD, who has the most worked N54 I have seen locally on OIL/WATER cooling. I suspect I know the answer but he has done lots of development so he will know ![]() |
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11-24-2011, 12:11 AM | #99 | |
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11-24-2011, 12:12 AM | #100 |
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I just had another look at Advan's radiator and the end tanks appear to have a smaller diameter.. not sure if this can be a good thing. Glad to see it's not made of plastic though!
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11-24-2011, 06:16 AM | #102 | |
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I would not wish to place a further flow restriction in front of the radiator. ![]() It is worth noting that most guys who will buy this kit, are FBO. As such they will already have a significantly larger intercooler installed in front of the radiator. Installing a second component that further inhibits air flow through the rad' core is obviously not a good idea. Last edited by JD75; 11-24-2011 at 06:17 AM. Reason: Typo |
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11-24-2011, 06:48 AM | #103 | |
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the PWR radiator was fitted just prior to the car entering the "Hot Tuner Shootout". FYI, the Stett oil cooler kit was the VERY FIRST MOD I bought for the vehicle. This was for two reasons. The first being that I considered it a key component given the "build" I had envisaged. The latter was that excessive oil temps was very much a known problem on modded vehicles, due to the insufficient OE oil cooling system. I had not upgraded the radiator previously, as I had not tracked the car as yet. The Stett kit had done wonders for controlling oil temps whilst the car had spent countless hours on the dyno. Pete has commented several times before that my car has the lowest sustained oil temp, of all the N54/N55 BMW's he has dynoed. Which in itself is quite significant as my 1'er makes just a little more horsepower than most other 1 & 3 Series BMW's too. ![]() Paul I suspect if you give Pete a bit of notice, he can knock the complete installation over in around 5 hours. Last edited by JD75; 11-24-2011 at 06:49 AM. Reason: Typo |
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11-24-2011, 06:59 AM | #104 |
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Higher engine operating temps are better for fuel efficiency - suspect this is why the OE stuff targets a high oil (and no doubt water) temp.
Lower engine temps produce more power but are less fuel efficient.
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11-24-2011, 07:08 AM | #105 |
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Justin - can you give any details on why the end tanks of the new radiator are slightly smaller in diameter and if this was intentional part of the design?
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11-24-2011, 07:24 AM | #106 | |
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with all due respect I would not consider a sustained oil temp of 120+ degrees Celsius to be fine, for anything but a stock vehicle making stock power. I suspect the N55 may place less load on the oil cooling system than that of the N54. You only have 1 heat exchanger on your vehicle, where as the N54 has two turbos that are spinning like crazy and in turn generating a lot of heat. That is potentially more thermal load on the oil cooling system, which would result in higher running temps than that of the twin-scroll turbo N55. By the way are the BMW engineers you so fondly refer to, the one and the same engineers that managed very quickly to resolve the HPFP and or ignition system issues that would have otherwise plagued the platform, oh wait, they didn't. ![]() Lastly if you do the math Ian, practically ANY 135i/335i with just a PROcede or JB3/JB4 will be making way more power than 20% over stock. ![]() Last edited by JD75; 11-24-2011 at 07:55 AM. Reason: Typo |
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11-24-2011, 05:34 PM | #107 |
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JD, you know more & have more experience than I do. So I'll give you that
![]() For my N55 car & mods (PROcede), I don't believe oil temps are an issue. Switching to 0W40 Castrol EDGE made a difference too...and then there's Redline WW. My tune only adds around than 20-25%. (230-240rwkw). If I was going further with mods, sure I would add better cooling. Using an example, I think that the 1M has a different oil cooler and definitely an aux water radiator to cope with extra performance, so based on this, a N54 135i adding similar performance may also benefit from added cooling?? Any way not too concerned as no more 135i for me ![]()
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11-24-2011, 05:36 PM | #108 |
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It depends on what you want to use your car for. You can look at it as a one off expense that solves that particular engineering problem long term. Then you forget it.
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.-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+
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11-24-2011, 05:40 PM | #109 |
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Out of interest, you must have additional coolers on your beast?
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11-24-2011, 06:02 PM | #110 |
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No I am running stock cooling, street car has not needed anything better. If I was to upgrade I would go ER race setup and consider the Advan offering that's in development.
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.-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+
Check out the 1Addicts Drag Racing Standings and Drag Racing 101. |
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