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11-28-2013, 02:51 AM | #23 |
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11-29-2013, 10:12 AM | #24 | |
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M24, a German company well known for racing, makes an upgraded oil cooler for the M3: Last edited by Hujan; 11-29-2013 at 10:25 AM.. |
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11-29-2013, 11:21 AM | #25 |
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Ahhhh... Thanks! I was just reading a thread about some guy in Russia that fitted a DCT on his N54 powered 335 and then retrofited the transmission cooler from the M3 on his DCT.
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11-30-2013, 02:30 PM | #26 |
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OP check this out http://www.burgertuning.com/low_temp...W_135_335.html
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11-30-2013, 11:07 PM | #28 | |
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12-01-2013, 01:35 AM | #29 |
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I thought so until Constant.S posted that picture earlier in this thread (edit: my 09 car has an oil cooler, and I couldn't believe that any Z4 35i were produced without it - I was wrong). Anyway, I assume this could be coded into the ECU as well? (Edit: no, because the thermostat is mechanical, and so is the oil pump btw) It would be cool if the "start oil pump" temp could just be set 10 degrees lower.
Last edited by Asbjorn; 12-06-2013 at 12:10 AM.. Reason: facts added |
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12-01-2013, 04:20 AM | #30 | |
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I think the ideal fix would be to get a different theremostat, such as the one used in that aftermarket kit that was discussed earlier. |
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12-01-2013, 10:21 AM | #31 | ||
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12-01-2013, 01:12 PM | #32 |
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1m /335is radiator fan is a plug and play part. This poster claimed ~15F idle temp reduction and mentions anecdotes it helps for track use also.
http://www.e90post.com/forums/showthread.php?t=591900 I wonder if that fan plus lower temp thermostat (maybe from m3?)or the thermostat bypass would solve e89 oil temp issues for far lower cost without having to go with aftermarket $$$ oil cooler kit Last edited by nicknaz; 12-01-2013 at 01:25 PM.. |
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12-02-2013, 04:16 AM | #33 | |
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Also, I don't know how hot it gets, but the DCT has its own cooling circuit in the M3... This might also explain why: http://www.m3post.com/forums/showpos...4&postcount=24 (Random internet speculation that the oil temp gauge in the M3 shows only a derived combo and not the actual oil temp directly...) |
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12-02-2013, 07:53 AM | #34 | |
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Realeom shows a heat exchanger for the E89 DCT (probably uses the main radiator), as opposed to dedicated radiator on the E9X M3 I agree with you that pair of turbos generating a lot of heat and and less radiators is what makes the E89 a card carrying invitee to the N54 limp mode party |
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12-02-2013, 03:32 PM | #35 |
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well said!!!
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12-03-2013, 01:13 AM | #36 | |
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12-03-2013, 01:21 AM | #37 | |
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Also, bear in mind that downpipes usually reduce oil temps. The stock cats trap a lot of heat in the engine bay/turbos and contribute to higher water and oil temps. Catless or HFC downpipes would vent that heat better. Perhaps not significant by itself, but combined with a fan and some modulations to the factory oil cooler, it might go a long way. Last edited by Hujan; 12-03-2013 at 01:27 AM.. |
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12-03-2013, 09:32 PM | #38 | |
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I haven't looked up 135is I would source from 1M/335is since those for sure have the 850W radiator fan. "should" be plug and place since I believe the 850W and 600W fan have the same form factor Yes, high flow DP, FMIC, radiator fan and maybe lower thermostat seems like a solid play for more HP and lower temps. I am speculating (and going off topic) next.... I believe the high oil temps in the N54 is to combat the carbon buildup on valvetrain that can happen in direct injector engines (S65 is not direct injection). There are a lot of articles about carbon build up around. Check out this article that suggests hotter temps cause deposits to burn off "The bulletin also suggested that harder driving would result in hotter intake-valve temperatures, causing deposits to burn off." Read more: http://www.roadandtrack.com/motorhea...#ixzz2mTPWMlBg http://www.edmunds.com/autoobserver-...-adopters.html FWIW, if I were to do all these oil cooling mods I would be sure to add oil catch can too. |
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12-06-2013, 06:29 PM | #39 |
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Drives: 2010 Dinan S3 Z4-35i
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Dinan Morgan Hill installed all my Dinan upgrades. Last year they upgraded the software from Stage 2 to 3 without having to purchase their upgraded oil cooler. They said my stock oil cooler will do just fine. I've never had any issues with my temperature at track events. I've been running stage 3 for a year now without any issues.
However, my local BMW dealership offered to fit the Dinan Oil cooler should I wish to upgrade to it.
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12-07-2013, 05:13 PM | #40 | |
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So my mod list is starting to shape up:
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12-07-2013, 10:22 PM | #41 |
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I would do a little research about the air filter vs. the OEM with stock turbos... You dont want to suffer from heat soak...
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12-08-2013, 11:32 AM | #42 |
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12-08-2013, 12:26 PM | #44 |
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Yes
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