10-12-2020, 11:24 AM | #23 | |
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The headache isn’t worth a couple more hp to me, but some guys run them correctly & successfully. |
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10-12-2020, 10:56 PM | #24 | |
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Thanks for being interested enough to test it as-designed (sealed box)! Tom |
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10-14-2020, 05:58 PM | #25 |
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Very valuable thread, reinforcing some of the observations of N55 owners. I have the same MPPK setup with aFe Pro Dry drop-in and their behind-the-grill air scoop. For a mostly stock family hauler (MPPK + JB1), I am all for NOT sacrificing low to mid range torque and the stock intake seems to do that pretty well.
Your turbo inlet impressions have piqued my interest... as I am sucker for razor sharp throttle response, and anything that helps in that direction is worth a look in my book. I remember putting a COBB one on my WRX long time ago. How difficult is the install on the F30s? |
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10-14-2020, 06:57 PM | #26 | |
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As far as the inlet goes, as i said in my OP, i do highly recommend the MST v2 if you are looking for improved throttle response. Install isn't too difficult, mostly annoying due to accessing the inlet to turbo bolt, the PCV bolt (at least on removal, MST modular construction makes it easier on reinstall), and just general hard-to-reach things. If you have done IC, CP, DP, TIC, etc, you shouldn't have a problem. In my post in the aftermarket inlet thread i have a album with a ton of photos including how i accessed things and tools i used. Kies also has a video, which i only deviated from slightly. If you have more questions about the inlet you can post in that thread. Oh, and if you are going to install an inlet, recommend replacing the PCV (aka CCV) hose at the same time. |
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10-14-2020, 09:13 PM | #27 | |
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Actually, keep a second one on hand just incase ... the damn things split real nice after a solid year or so of heat cycling
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10-20-2020, 05:06 PM | #29 | |
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Throttle response is solid, yes. No complaints there. Over the last two weekends, I went to BMWs 2020 ultimate driving experience event twice. You get to test drive various cars, and autocross the 2020 M340i (rwd) and 2020 M235 gran coupe xdrive. The 2 series uses the 4cyl (B48?) whereas the M340i uses the B58 obviously. I had already driven the M340i at least years event, so this was my 3rd time autocrossing it. Last year i drove it when my car was stock (did IC+CP+stage 1 a few weeks after, just a coincidence though as i had already ordered parts). This year i drove them with my current setup as a comparison. As i experienced when i had a 2020 330i as a loaner car a couple months ago, the 4cyl throttle response/"turbo lag" is absolutely awful. I mean seriously, you floor it and it takes a full 2-3 seconds before you even feel like you are moving. Its strange. The M340i is better, but no doubt it still feels "laggier" than my current setup (and slower overall). Of course this is a stock to modded comparison, but just providing as a point of reference. And no, it has not quieted down lol. I'm hoping its like an acquired taste and i like it more over time. But if the opposite turns out to be true, i'll just sell it. Really the only sound that seems to get old is the 'sigh' you can hear from inside the cabin at freeway speed when you just lightly accelerate in high gear and let off. It's not a "cool" sound, and it just seems like something that is unnecessary to hear, and it lasts longer than a quick 'whoosh'. |
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10-21-2020, 07:21 AM | #30 | ||
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Would be curious to see that additional test done for all with that hole patched up as if what I recall is accurate you would see improvement on all setups, not just Dinan. |
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10-21-2020, 11:44 AM | #32 | |
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Not accurate because i literally tested the exact same thing as Ozy. In the tests i did i ran MPPK porthole, no snowflap, no scoop. This is exactly what Ozy ran - literally the same intake too because it came off his car. And there are additional data points in the dinan intake threads where others running BM3 show a similar impact on MAF readings. And when someone posted a YouTube video from ThicF30 i could see during the video in his BM3 dash that his MAF wasnt reading correctly. The common denominator in all of these is BM3. |
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10-21-2020, 11:58 AM | #33 |
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I haven’t followed all those conversations, but the MAF on the M2 maxes out at 43.4-lb/min and won’t read higher.
Is that what you’re talking about, or some weird fluctuations? |
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10-21-2020, 12:06 PM | #34 | |
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All this tells me is that what I noticed with my Dinan + MMPK (inconsistent throttle at times) wasn’t my imagination. I just don’t want to deal with the noise of the CTS. I’m assuming the AFE is likely the same as the Dinan, so it’s either stock or CTS. |
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10-21-2020, 12:07 PM | #35 | |
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Doesn’t really matter for making power, tho, only if you’re trying to diagnose issues when the air is really pushing hard—which may be the case here and what I was trying to clarify. |
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10-21-2020, 12:31 PM | #36 | |
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You can see more in the Dinan thread, scroll down a little and see someone else with a graph independently confirming what i saw in Ozy and a few other people's logs: https://f30.bimmerpost.com/forums/sh...1486248&page=2 |
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10-21-2020, 12:32 PM | #37 | |
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10-21-2020, 12:36 PM | #38 | |
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10-21-2020, 12:44 PM | #39 | |
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10-22-2020, 06:17 PM | #40 |
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I just ordered an airflow straightener for the Dinan housing. Should be here this weekend. When it comes I will do some pulls with it.
https://performancemrp.com/i-3049781...tegory:1389190 Do you want 4th gear only pulls, or full pulls from 1st? |
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10-22-2020, 06:26 PM | #41 | |
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Also, are you running BM3? |
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10-23-2020, 10:48 PM | #42 |
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Great write up! I've had the CTS intake on my car 435i for over 3 years now and I love it. What do you mean too loud!? . I've never had any CELs or drivability issues. Also running MHD Stage 2+ tune. And definitely thinking of maybe adding the upgraded inlet and air scoop like you mentioned.
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10-24-2020, 11:12 AM | #43 | |
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10-24-2020, 11:15 AM | #44 |
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good call on the scoop. aside from getting the CTS some sort of semi-enclosure, i feel it would be a nice way to ensure fresh air is diverted through the intake box.
Agreed on the inlet (i went with PureTurbo but people seem to really like the MST) - and if your down there, might as well take care of the DV too
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