05-15-2020, 07:45 PM | #111 |
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Any knows if this a solution?
Eventuri V2 Sealed Duct Upgrade kit arrived! https://f80.bimmerpost.com/forums/sh....php?t=1718842 |
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05-15-2020, 09:22 PM | #112 | |
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05-15-2020, 09:56 PM | #114 |
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The air temp difference was higher before I added the Ram scoops and added the elbows. It does work, just don't know how much of a difference it actually makes at speed
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06-03-2020, 11:11 AM | #116 | |
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06-17-2020, 03:28 AM | #117 |
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Ok guys-- riddle me this.
The car is going into Carbahn on Thursday and since they're replacing the heat exchanger, I thought I'd have them snap in the M3/M4 intake pieces. I just checked, and the part numbers for the long tube that comes off the intake are different. WTF? Am I screwed? The first two attachments are pictures and parts from the M2C: And the second two picture and parts are from the F82 M4: They sure LOOK identical in the pictures (but that may just be BMW being lazy). Am I screwed? or are they maybe different lengths? To my understanding, the parts Intake duct, left (13717613157), Intake duct, right (13717613156) and Intake grills (13718507321 x2) should just snap in. Right? RIGHT? Since the bumper's going to off anyway for the intercooler and CBC, I want to get this done-- but now I'm second guessing myself thinking I need to get the M4 part #'s 13 and 14. A little help? I can't figure out why BMW would have different part numbers. TIA-- |
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07-21-2020, 12:33 PM | #119 |
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02-17-2021, 08:35 AM | #121 |
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CS looks to be the same.
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03-23-2021, 04:22 PM | #122 |
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This is the strangest thing I have ever seen. There appears to be zero advantage to sealing that duct off. It would have cost BMW even LESS to reuse S55 parts from the M3.
Questions - why.. what could be the reason for this, I'm at a loss - does this fundamentally increase heat soak and is this why the M2S has no sound deadening in the door jam? - is THIS how they "detune" the s55 to begin with?
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03-24-2021, 06:21 AM | #123 | |
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I suspect that generally speaking, colder wet climates get closed intakes, because get enough water into those intakes and you have a rod through your block faster than you can say "wow, that is some heavy rain". That danger is very real, and expensive. On some cars the open grille option is called "hot climate version". Which seems to indicate it is at least partly a regional / climate thing. It seems clear BMW's default is to not have them, unless needed. Why M2C never got the open vents in any market, we don't know. Could it be that it was a run out model, not worth the extra expense to have two systems? Could it be that the M2C has two air-boxes, so exactly double the intake capacity of the N55 version, making available airflow from behind the bumper a non issue? We can only guess. M3/M4 have them, but as i said earlier, in automotive world there are some strange outcomes. That's a committee driven process for you. I fitted the 'hot climate' opening to my F22 M240i (Stage 2 450hp), cant say i noticed a single degree cooler IAT under the same conditions (logged via AIM digital dash system via direct CAN link), but to my inner engineering geek, an open system seems the better option, so will probably get round to fitting these to my M2C at some point. |
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03-24-2021, 09:22 PM | #124 | |
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03-29-2021, 05:21 AM | #125 | |
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03-29-2021, 07:20 AM | #126 |
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04-01-2021, 10:34 AM | #127 | |
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A closer example: M235i vs M2 OG airbox! M235i and M2 OG share nearly the same engine (only different spark plugs, pistons, oil pump, diverter valve). M2 OG has, on top of regular full pipe from behind kidney grilles, an additional red opening in engine bay: This additional opening adds some engine induction noise and you will clearly hear more turbo noise. I test this 335i MPPK/M2 OG airbox when I had my M235i. So, yes, not having full ducted pipe may be to provide more engine induction noise |
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04-12-2021, 11:32 AM | #128 | |
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Hose to the firewall is this one, you can really hear the engine breath, one yo change to an aftermarket exhaust, is inaudible
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04-12-2021, 11:39 AM | #129 |
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I read somewhere that BMW said that the S55 in the M2 has less power than m3/m4 because runs a hotter.
I do not know if this is true or it is marketing excuse for the power difference. If the former is true. Will adding the extensions to the intakes reduce the air flow to the radiator in a amount that neutralize the benefits of lower intake temps?
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04-12-2021, 09:13 PM | #130 | |
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04-12-2021, 09:56 PM | #131 |
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I'm just curious if anyone logged temps many times to see if there was a true difference. There may be.
And I just purchased the M3/M4 hardware.. too bad I didn't know of this when I had my bumper off last month. I spent a lot of time aligning it perfectly after removal that I don't know if I want to do that again. |
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04-13-2021, 08:53 AM | #132 | |
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