02-11-2016, 10:31 AM | #111 | |
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Oh come on, you're avoiding addressing my point.
They DID give out "proprietary" (if you can call it that, it's only temporary until the first one is sold) information relating to all of the other changes with the motor. So why did they chose to exclude only the turbo? So it's OK for them to point out the new block, crank, pistons, etc. but not the turbo? Again, the "BMW doesn't like giving out info" argument doesn't work, because they gave out everything else! Quote:
That being said, the standard N55 can't. Which I think is darn good evidence of a bigger turbo...so in the end, I agree with you. Still makes no sense that they'd withhold that information, since they're clearly so concerned with people thinking this is just a regular N55. And simply because it's "BMW M" doesn't mean much either. The 1M (which is the car most comparable to this one) got a plain-Jane N54. No new anything sans a tune.
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02-11-2016, 10:36 AM | #112 | |
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A power increase labels M Performance on a M car is mislabeled. |
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02-11-2016, 10:38 AM | #113 |
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One stop shopping? You can try burgertuning.com
Or feel free to view any of the hundreds and hundreds of N20, N54, N55, S55 dynos posted on the forums over the years. Jesus man, even the quickest search reveals that your 10% number is way off, yet you're still posting.
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02-11-2016, 10:41 AM | #114 | |
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Competition pckg makes sense cause its a step up from, just M-power for everyday use, to a pckg dedicated for better tracking. Power boost as part of LCI can be done to keep the distance from the coming B-motor M(performance)235i or external competitors. So the compt.pckg and PB makes more sense. |
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02-11-2016, 10:51 AM | #115 |
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Lost in translation for M2 Competition Pack a la ZCP
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02-11-2016, 11:02 AM | #116 | |
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02-11-2016, 11:24 AM | #117 | |
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As per their website and dynos, on an N55, for example, their piggy can add about 60 whp (or about 80 bhp) over stock, on an other wise stock car. That's over 20%. That turbo is nearer being maxed out, hence, as shown in the plots, gains from other bolt ons are minimal. The N54? about 70-80 whp, or 100 bhp with their piggy, on an otherwise stock car. Those go up a lot with other bolt ons, as the N54 twins have much more capacity than the N55's single snail. You'll see 500 bhp cars on stock snails. Something impossible with the N55. There are dyno plots of an S55 putting down 80+ whp over stock, with no modifications whatsoever. People are in the mid 500 whp easy on the stock turbos, again, well over 10%. Again, not all of their turbo engines have the same headroom in the turbos, and all of them have much more room than 10% over stock. There's about a million threads about people complaining about the N55, and how it doesn't have nearly the same potential as the N54. Largely that comes down to turbo size.
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02-11-2016, 11:34 AM | #119 | |
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We're talking about how much power the stock turbos support. Even on otherwise stock cars, it's well over 20% gains. Look at the various JB4 dyno plots.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) Last edited by PrematureApex; 02-11-2016 at 11:39 AM.. |
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02-11-2016, 11:45 AM | #120 |
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Huh? You were the one who quoted me, saying how I didnt know what I was talking about when I said 10% whp would be expected with stage 1 and 93 oct.
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02-11-2016, 07:22 PM | #121 |
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Guys, come on now. We don't know didly on the turbo size. We will soon enough.
Personally, I think BMW is smarter than putting in a small turbo operating near the upper limits of thermal efficiency and packaging that around an upgraded motor all of which is designed to be operated at/near the limits for a prolonged period on a track. If I am wrong I promise you I will buy a new turbo for my car, which is being built presently. |
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02-11-2016, 08:15 PM | #122 | |
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I'm not questioning you. I just want to know some details! |
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02-12-2016, 05:37 PM | #123 | |
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RingMeister01 what you think? sahyoun
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02-12-2016, 11:57 PM | #124 |
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Special thanks to the OP for posting this. Great document, really shows the value that this car represents for the minimal cost over the M235i. The only problem is the more I read the more excited I get and I have months to go.
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02-13-2016, 12:15 AM | #125 | |
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02-13-2016, 02:51 AM | #126 |
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ColOmbian, not ColUmbian
(My wife is from there) Anyway, thanks for sharing those documents. I couldn't find it in the info but I somewhere heard the brakecalipers are made by Brembo? Thanks Cheers Robin |
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02-13-2016, 03:12 AM | #127 |
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02-13-2016, 09:43 AM | #128 | ||
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I think a lot of development would be necessary with a completely new turbo, at which point a S55 swap would have been easier for them. Once you alter an engine it has to go through extensive EPA testing, where N55 and S55 are already pass. Again, just open thought on my end.
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02-13-2016, 10:00 AM | #129 |
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Has anyone mentioned the unsprung weight they saved on the M2? It states they saved 2.8 lbs with the new wheel flange compared to the e82. Does anyone know if this is total or per corner. If per corner, that's substantial. Also the weight they saved on the wheels...what is 2-4 lbs per corner compared to the 1M? So, while ultimately heavier than the 1M, the M2 seems to have saved anywhere from 15-24 lbs of unsprung weight from these two items alone. Does anyone know if the brakes and rotors are lighter? On the other hand, there could be other components that add to the unsprung weight that I am ignoring...
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02-16-2016, 07:49 PM | #130 | |
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"Together the exterior design changes are claimed to have reduced drag by 5% as well as reducing lift by up to 35% over the standard 2-Series coupé." Well if the standard 2-series coupe has a Cd of 0.29, the the M2 is at least down to 0.28. |
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02-17-2016, 06:53 AM | #131 | |
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02-18-2016, 08:40 AM | #132 |
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You can't just disconnect it.
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