08-01-2017, 02:08 PM | #1 |
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Turbo Lag?
Calling actual M2 owners, preferably manual.
How much turbo lag do you feel on the M2 in an everyday driving situation with the occasional necessity to make a quick acceleration? What about track use? I've read and watched many reviews where I found a mixed bag of answers. Some have said that it's a full on punch from 1500 RPM all the way to redline while others have said it takes getting to 4500 RPM to get the full punch. So what is the verdict from real M2 owners who have driven the car for a while? |
08-01-2017, 02:47 PM | #2 |
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Still breaking mine in, but I haven't noticed any discernible lag. My N54 135i, with JB4, downpipe, intercooler and charge pipe screams with no lag, but the M2 is stick and is very drive-able.
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08-01-2017, 02:56 PM | #3 |
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Very little when just on the throttle. With the manual, it's pretty noticeable between shifts unless you are high in the rev range and quick with your feet.
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08-01-2017, 02:59 PM | #4 |
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What the guy above me said, except I would say 'unless you drive it like an M car' lol
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08-01-2017, 03:14 PM | #5 |
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I feel it a little in Comfort mode. I've owned and driven many miles in 6MT 235i and DCT M4. This sits nicely in between and nearer the M4.
M4 in sport has the turbos spooled up full time ready to rock. Not an issue at all in the M2, tiny amount of lag
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08-01-2017, 03:17 PM | #6 |
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Not an owner yet, but driven it many times and other modern M cars. The journalists seem to be smoking the good stuff. There is a ton of throttle input lag unless the turbo is spooled.This is physics and there's nothing you can do about it except augment the turbo when it's at low RPMs with electric or something.
BMW knows this is an issue and has been researching solutions. http://f80.bimmerpost.com/forums/sho...d.php?t=597327 But if you're expecting the motor to "totally feel NA!" like some journalists exclaim, you will be disappointed.
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08-01-2017, 03:22 PM | #7 |
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On DCT I do notice it at less than 4k rpm. I didn't notice it so much when I first got the car, but now that I am more familiar with it and more comfortable pushing it I notice the lag more. It's more fun at higher RPM anyway!
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08-01-2017, 03:24 PM | #8 | |
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If you are asking if it has turbo lag then yes, it does. If you are asking if the turbo spools at a very low RPM, yes it does that too. |
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08-01-2017, 03:40 PM | #9 |
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I agree here just a tad until higher rpms with dct. After turbo kicks in it's pretty exciting
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08-01-2017, 03:49 PM | #10 |
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08-01-2017, 03:56 PM | #11 | |
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08-01-2017, 03:58 PM | #12 | |
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So how does the car feel when driven between idle to 4000 rpm? I mean what if you are shifting at 3k? what car would you liken it to |
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08-01-2017, 04:02 PM | #13 | |
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I see, so it's a fun car on the track but drives like any ol car as a daily driver with moderate traffic (shifting below 4k). Is that a fair thing to say? |
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08-01-2017, 04:23 PM | #14 |
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Very noticeable turbo lag if you know what you're looking for. When you floor it, there's a very obvious ~1 second delay in power until the turbo spools up and kicks you back into your seat. Granted, this can be mitigated somewhat by keeping it higher in the revs and "anticipating" the lag by waking up the turbo with a little pre-throttle application.
Anyone who says there is no noticeable lag is either naive to the driving characteristics of a boosted engine, or are telling a little white lie. I honestly haven't noticed a significant difference in the lag between driving modes. The throttle response is different between modes, but the turbo lag is much the same. |
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08-01-2017, 05:13 PM | #15 | |
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08-01-2017, 05:34 PM | #16 |
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I wouldn't ever floor it at a low rpm anyway. Just downshift and it's ready to go. The thing about the M2 is how nicely it revs out to redline and in that respect, it is almost as satisfying as an NA. Most turbocharged cars don't reward revving it to redline.
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08-01-2017, 05:47 PM | #17 | |
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If coasting at about 4k+ rpm and then you put your foot down the power is just instantly there. If OP were to drive an M2, I will say in comfort mode the gas pedal is awfully squishy and makes the car feel sluggish so I would suggest judging in Sport or Sport+. |
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08-01-2017, 05:58 PM | #18 |
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It is but just don't expect it to snap your neck when stabbing the throttle or expect it to be really touchy and instantaenously modular. It's still a turbo. It's laggy.
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08-01-2017, 06:02 PM | #19 |
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I'm not exactly sure what you are getting at. It's a blast to drive on the track and on the street. Below 4k the turbo still easily kicks in. It's just that the car definitely has turbo lag. It will still spool up at 2k and rocket to redline, but make no assumptions that it drives just like a N/A car. It sounds like you need to test drive one. I am just being honest and critical of the turbo lag. It doesn't magically disappear because it's a M2.
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08-01-2017, 06:04 PM | #20 | |
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08-01-2017, 06:27 PM | #21 | |
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I wish I can test drive it but dealerships around me either don't have it in stock or are asking $70k+ for their M2. Not going to waste time at a dealer trying to charge that kind of price even I don't have to buy it from them. |
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08-01-2017, 06:36 PM | #22 | |
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I agree. Though I'll likely rotate it with my other vehicles and end up driving it in a commute 2-3 times a week. Narrowing down my choice for my next purchase so just trying to get a review from actual owners. |
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