02-11-2019, 08:39 PM | #2 |
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Thank you for sharing
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02-12-2019, 09:49 AM | #3 |
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Really like Imran. Very tempted by the eventuri system for the comp too, but I'm betting its well over £2k. Plus, I've got an eventuri intake for a JCW to buy first for track season
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01-09-2020, 07:54 AM | #4 |
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Hey guys, since I've installed an Eventuri intake last weekend, I'm wondering about one thing:
When the M2C is in idle and you rev up the engine, there is no intake noise. Whereas, for the S55 in the M3/M4 you do have that intake noise when reving up the engine. Does anyone know for what reason there is a difference between M2C and M3/M4, although both have the same engine (S55)? Just to get sure: There is indeed an intake noise while driving for the M2C, but not at idle. |
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01-09-2020, 10:14 AM | #5 |
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01-09-2020, 10:54 AM | #6 | |
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You can clearly see it here in the 3D animation https://www.eventuri.net/products/bm...2-competition/ The M3/M4 Eventuri system is "open", ie the lid does not fully enclose the filters and it allows the filters to suck in air from under the hood and not through the snorkels. You can clearly see it here in the 3D animation https://www.eventuri.net/products/bmw-f8x-m3m4/ This difference and the fact the M3/4 have an elbow that connects the snorkels to a pair of intakes ahead of the radiator (that is why the M3/4 kits comes with extra scoops placed behind the grill) mean that the Eventuri kit makes more noise on the M3/4 than the M2C. The M3/4 kit is a bad design, it sucks hot air in from under the hood neting you less power (as discussed with a prominent tuner). Their kits do make for some nice bling though and are well produced. You can prob trade someone your closed lids for open ones if you want more noise.
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01-09-2020, 03:27 PM | #7 |
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Thanks a lot for your detailed answer, Megator. I understand every point, but I meant something different.
To make it more clear: For sure, the M3/M4 Eventuri should be louder compared to the M2C, because of the missing scoops which leads to some kind of "open" air intake. But even when you leave the scoops off the Eventuri at the M2C, what I did for testing reason, you will not have any sound at all when the car is idling and you rev it up. Whereas in the M3/M4 you definitely have a loud intake sound when revving it up in idle. For sure, when all of these three cars do run on the road, you have a significant intake sound, but not for the M2C when it stands still. And that's what I do not get at the moment. The M2C has the same S55 engine as the M3/M4, but there is no intake sound when revving it up in idle. Something must have been changed in the soft- or hardware by BMW for the M2C. |
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01-09-2020, 07:51 PM | #8 | ||
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01-09-2020, 09:16 PM | #9 | |
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I'm trying to figure out if it's actually intake or just too much air being sucked in. I got two fault codes from it. |
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01-10-2020, 02:30 AM | #10 | ||
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Quote:
https://www.realoem.com/bmw/enUS/sho...diagId=13_1995
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01-10-2020, 07:24 PM | #12 | |||
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01-11-2020, 08:16 AM | #13 | |||
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01-11-2020, 09:44 AM | #14 | |
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On top of that if their are any gains its going to be very high in RPM's. Everyone can decide how to spend their money on mods but this is NOT one that most S55 owners will invest in. Downpipes & a tune are where the ROI is on this car for power...
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01-12-2020, 01:54 AM | #15 | ||
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I will say that a closed system is better for certain models... F90's are not responding as well to "open" intake design as opposed to "closed"... |
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01-13-2020, 04:10 AM | #16 | |
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A quick google shows both those codes relate to the engine running lean (as I suspected). So either you have a leak past the mass air flow sensors or the mass air flow sensor (MAF) is damaged. It can be other things but look at the things you messed with 1st. MAF sensors as used by BMW tend to die if your filter is over oiled. However my friend has had an eventuri system for several years without issue on his F80. You can read more about your problem here: https://www.engine-codes.com/p0171_bmw.html https://www.engine-codes.com/p0174_bmw.html My advice go back to the OEM intake and see if that solves it. If not take it to a mechanic or BMW and play coy (I assume it is still under warranty). Quote:
There is a reason they call them hot air intakes as a joke. Any air that comes from under the hood will always be warmer (on modern cars) as it has been forced through a radiator first. To increase fuel efficiency via reduced drag almost all modern cars have ducted cooling systems and underbody covers. This means you need a snorkel to the outside in order to get colder air into the engine.
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01-13-2020, 04:15 AM | #17 | |
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The only mod he did was to add a large hole (about the size of a coke can) to the bottom of the filter housing so that the inlet to the filter housing was not a restriction.
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01-13-2020, 06:58 AM | #18 | ||
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Regardless, problem is solved for now. |
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01-13-2020, 01:37 PM | #19 | |
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01-14-2020, 09:23 AM | #20 | |
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So save the cash and change the OEM filters every 10k-20k km if you really want max breathing.
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01-14-2020, 09:28 AM | #21 | ||
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01-14-2020, 10:38 AM | #22 |
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What kinda % gains are we talking about? Just curious not trying to be combative, I just know you have a lot of experience.
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