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BMW 3-Series (E90 E92) Forum
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Gentlemen - Two Hundred Thousand (200,000 mile) E90
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10-28-2015, 01:30 PM | #397 |
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I THINK (but don't know for sure) that the main motivations for moving to turbo engines are that turbo engines of similar size and weight as NA engines can generate better fuel economy (mandated by many countries), more HP and more low end torque. Additional benefits include smaller engine packages and more in-house (and for enthusiasts 3rd party) tunability. The downsides are more cost and complexity needed to extract more power out of the same displacement. I see why BMW is doing it. Makes sense to me.
Even Honda is putting turbo engines in the upper models of the 2016 Honda Civic. The base engine is going to be a 2 liter NA 4 and upper engine a 1.5 liter turbo 4. |
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10-28-2015, 10:04 PM | #398 | |
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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06-21-2016, 02:48 PM | #399 |
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I hope my N54 gets to 300,000 miles. I absolutely love the car. I've been neglecting it for 5 years until I ran into a minor issue and repaired it on my own. Since then I've been spending a bit trying to DIY as much as I can and I've grown more attached to the car.
Started with the K&N filter, to DIY'ing the cup holder, then to spark plugs, oil change, and cleaning the interior leather. Crazy that I never really got into maintaining the car (I did have 4 year 50k warranty) until now. Stretch goal is to replace the valve cover gasket + replacing the diff and trans fluid. Don't have a lift though :/ Right now I have a Passport Max Radar Detector on order as well as the PCV Valve + Oil Catch Can. Dashcam installed (A118C).
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2010 E92 Monaco Blue 335i / Gray Dakota Leather / Steptronic / Sport / Premium / Navi / L7 / 18" Performance Wheels / HPFP fail @ 8400 miles (replaced with #933 pump) // MODS: Mishimoto OCC | VRSF CP + Turbosmart Dual Port BOV | RB PCV Valve // Maintenance: Walnut Blast @ 56k | Spark Plugs Replaced @ 56k | Addons: BN2000 Combox // Andream Carplay // Rear Camera // Spark Plugs (.022 gap) and Coils Replaced 73.1k
2019 G01 Carbon Black X3 M40i / Premium / Driver Assist / 21" on Bridgestone Alienza RFT |
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06-28-2016, 11:58 PM | #400 | |
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Some automakers can't seem to get turbos quite right - Ford seems to be able to get the power but not the real world economy, as an example. Saab cracked it a long time ago, and BMW very much knows what they are doing too. The downside is added complexity of course. TANSTAAFL... Though I have owned enough turbo cars with extremely high mileage to not be particularly afraid of it.
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'11 328! Touring - Tasman on Chestnut, 6spd manual, factory upside-down "i" option '11 128i Convertible - Space Gray on Savannah Beige, 6spd manual, also '14 Mercedes-Benz E350 wagon, '95 Land Rover Discovery, '74 Triumph Spitfire |
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06-29-2016, 05:49 AM | #401 | |
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Your experience I'll not doubt since I have no data to counter it, but my question I do have is with the added maintenance and repairs (costs) that are indicative of a turbo engine simply because they are more complex, is the fuel mileage gain economically viable as compared to a NA engine? Meaning does the fuel cost savings still put you ahead in total long term vehicle operating cost as compared to a NA engine. It is my belief that the fuel costs savings is offset by the added maintenance costs/repairs. The chemist in me knowing that the engine tries to achieve the best stoichiometric chemical reaction to conserve fuel means the fuel/air ratio is basically the same for any engine making similar horsepower. Granted that combustion chamber design can somewhat affect the chemical reaction (combustion process) inside the cylinder and that other engine design parameters affect the vehicles fuel consumption performance, but it's all quite close between modern automotive engines. Which leads me to consider that turbo engines can be tuned to meet strict Government fuel consumption tests better than non-turbo motors, but in real world use the gains are not that great, and combined with added maintenance costs, is not worth it. Car & Driver recently did a comparo of this sort with the Honda Civic and came found these results and this conclusion: "By the EPA’s measure, the turbo Civic holds a 1-mpg edge on the highway with its 31/42-mpg ratings." "On a 300-mile loop of mixed highway, rural, and urban driving, the cars proved equally frugal by averaging 40 mpg. Digging deeper, we measured the steady-speed fuel consumption of the two Civics. Some of our results are astounding, such as the 50-plus-mpg both Civics achieve at 55 mph. The turbo wins across speeds ranging from 30 to 90 mph, with a 6-mpg advantage between 40 and 55 mph." "Spending the extra $1160 for the Honda’s turbo engine does have one clear advantage beyond efficiency: The additional power and torque clip 1.4 seconds from the zero-to-60-mph run and a full second off the quarter-mile time compared with the naturally aspirated alternative. But exceed the gentle, twinkle-toe throttle pressure we applied in our steady-speed tests and all efficiency bets are off. As boost rises, more fuel is injected and mileage drops. Precipitously." To me the added cost of the turbo engine and probable increased maintenance costs of the turbo don't achieve an economic advantage over a non turbo motor via fuel consumption savings.
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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06-29-2016, 06:20 AM | #402 | |
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We get it, you're playing the devil's advocate and trying to be old school. That's fine because up to that point, it's subjective, but to get into economics is kind of pushing it. Car cos. are all about profit, like banks. In the real world, a 2016 328i x drive auto gets 26 mpg on my commute. My 335i RWD gets 21.7. Every 328i x-drive loaner I have gotten over the years got 17.x. These are real numbers, valid and reliable as they are over a 6 yr. period and each number is over 4 weeks or longer. p.s. you do know there are smartphone apps that make it really easy to keep mpg numbers over years across multiple phones as you move the database easily as well? |
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06-29-2016, 06:27 AM | #403 | |
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I get that purists are against it, and feel somehow it's "unfair" to get full torque at 1300 rpm up to about 5000 rpm, it's just not the way they learned to drive. And what they like is what they like. But some of the comments are plain nuts! Again, the 991.2 911 is turbocharged, so one could say, the fat lady sung. Just don't call a Carrera or Carrera S a "turbo," even though it's got two. Turbo is reserved for the iconic 911 Turbo. |
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06-29-2016, 07:44 AM | #404 |
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Totally agree with OP on this one. Companies are going turbo for gov't/EPA restrictions. However, in the real world, the cars really don't get any better fuel economy. It's not rocket science, to produce x amount of power, you need y amount of fuel. The engine does not care if it's compressed or atmospheric pressure. Now, if you are the EPA and test the cars without even hitting boost, then yes they will get better fuel mileage (to put on the window sticker and avoid taxes). But once the driver starts actually driving like a normal human, hitting boost once or twice a day, the fuel mileage drops significantly, usually equaling out NA engines. Just look at the F150, owners complain about the ecoboost V6 getting worse mileage than the V8 in the real world.
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06-29-2016, 07:59 AM | #405 | |
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We've known for 9+ years that 335's usually get better mpgs than 328's in the real world, I've heard DI was to blame. But the end result is what it is. edit: The EPA isn't testing cars, the car mfgs. are self reporting. The EPA years ago only tested 15% of all cars. When the F30 came out, BMW slapped a 36 highway number on it, and immediately the EPA tested one and said no, you will put 33 on the window. Because BMW is not an American co. Again, on extended loaner periods, I easily got 40 mpg hwy with a 335d, and with the '16 328, 38 on the highway. My 335i is struggling to do 30, but maybe a walnut blast may help. Last edited by John 070; 06-29-2016 at 08:20 AM.. |
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06-29-2016, 10:31 AM | #406 | |
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In the long run, maybe turbos pay on a strictly dollars and cents basis, and maybe they don't - I've owned a dozen or more turbo cars and have never had an issue worse than replacing a vacuum hose related to the turbochargers. Don't take the experiences of early x35i BMW owners as the norm. In the short run they generally provide a more satisfying driving experience (as shown by your Honda example), and I would rather potentially pay a mechanic, than definitely pay at the pump every week. And of course, driving style plays into it considerably. I much prefer the ability to use low revs to make decent progress than having to rev the nuts off an engine. Which is pretty much the difference between an N20 and an N52. As I said for real world vs. "the test" some makes have it down, and some don't. Ford definitely doesn't. BMW certainly does, and Saab did. Volvo and Mercedes seem to be doing it right too. As a long time Saab fan and multiple serial owner, I find it hilarious that the formula that Saab was denigrated for for so many years is now the new normal. The ~2.0T 4-cylinder is the way to go for power and efficiency now.
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'11 328! Touring - Tasman on Chestnut, 6spd manual, factory upside-down "i" option '11 128i Convertible - Space Gray on Savannah Beige, 6spd manual, also '14 Mercedes-Benz E350 wagon, '95 Land Rover Discovery, '74 Triumph Spitfire |
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06-29-2016, 11:11 AM | #407 |
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I understand...many of us here prefer sticks, I do. Someone can say, but the DCT can shift in ms, you can't shift that fast, a DCT can spank you on a track. We still prefer a stick. Part of my commute is bumper to bumper, from 0 to 3 mph. I still prefer a stick under these conditions. But these days I am driving a '16 328 x-drive--I hate having an auto, and it's one case where I turn off the ASS feature.
By the same token, many prefer NA cars, they dislike and don't want turbos. Nothing wrong with that. If anyone qualifies to be a purist, imho someone who is spending 140k on a new 911 does. Or, they are rich mothas. They of all people should dislike twin turbos and cars with electric power steering. Yet, most love the 991.2, which is a Porsche, and has both of the above. Again, I understand if you don't like turbos. Perfectly valid. But to say they have no purpose....every single truck/rig you pass on the highway is a) an inline 6 b) turbocharged And these are all business, no pleasure I notice that even on a forum such as this, where people have the capability to completely rebuild their car in their home, there is still a tendency to dwell on HP, and not torque. Madison Ave. really proves they are king. HP, as does sex, sells. One feature I notice in the F80 is the screen that shows HP/torque at a given slice of time. I don't have such a thing on my 335i. imho it does reveal a lot about this conversation. |
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06-30-2016, 12:14 PM | #408 | |
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07-01-2016, 05:55 AM | #409 | |
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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07-25-2016, 11:00 AM | #410 | |
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And it is still running on the original water pump!!!! |
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07-25-2016, 11:08 PM | #411 |
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I think in the light of the recent diesel-gate scandal and mag comparisons it's clear the turbo does not hold every advantage. Especially, not nearly as much as the automakers would love to have you believe. It's an incrimental change to mpg, offers more torque and at the same Time more complexity.
I don't think there's anything 'old school' about NA engines considering forced induction has been around for 100 years, but turbos are a technology that's been perfected recently that helps automakers maintain or exceed performance levels with engine capacity financial restrictions (taxes) in most places around the world. The fact that the Japanese manufacturers are a hold out until recently does not surprise me. They rarely ever make a decision that does not make financial sense or isn't forced upon them by market pressures. Of course, I think it's the latter in this case, but I'm bias |
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08-11-2016, 07:51 PM | #413 |
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I made it to 200,000 yesterday.
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Mar 05 Build date,2006 E90 330i, Sport Package, Premium Package, TR MT-1's . V-1 Hard-wired power with custom V-1 Concealment Display . Rear fogs, Rear power outlet's, M short shifter knob, BlackLines, BMW Strut tower bar, CDV Delete, Front M3 wishbones + tension struts, BMW Performance shocks and springs, BMW Performance Brake kit F&R, OEM short shift kit. Rear M3 Guide rods and Wishbones.
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08-11-2016, 08:14 PM | #414 |
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200,000 and still running strong.
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Mar 05 Build date,2006 E90 330i, Sport Package, Premium Package, TR MT-1's . V-1 Hard-wired power with custom V-1 Concealment Display . Rear fogs, Rear power outlet's, M short shifter knob, BlackLines, BMW Strut tower bar, CDV Delete, Front M3 wishbones + tension struts, BMW Performance shocks and springs, BMW Performance Brake kit F&R, OEM short shift kit. Rear M3 Guide rods and Wishbones.
2006 E-90 330i with 302,000 miles. |
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08-12-2016, 05:35 AM | #415 |
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Congratulations! For a while there (way back) we were running neck and neck to 200K, but I think you started driving another car.
Here's to another 100K.
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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08-12-2016, 06:36 AM | #416 |
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My e90 has only 58K miles. By the time it reaches 200K, we'll be talking about the new 3 series hybrid with a small turbocharged engine and electric motors at each wheel.
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08-12-2016, 10:57 AM | #417 |
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Mine has just a tick over 106,000 miles. It definitely uses oil...like a quart every 2k miles.
I do have to say though, that I haven't opened up my oil catch can in tens of thousands of miles; an OCC-caused PCV backup would cause excessive oil consumption. I'll be checking this weekend.
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08-12-2016, 11:37 AM | #418 | |
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