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05-22-2013, 01:50 PM | #45 |
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Automobile mag just stated the horsepower and torque will be approximately 450hp and 406 ft lbs respectively. Check the home page out.
Let's assume the redline is 7900 for now. Edit: Since the M5/M6 horsepower and torque is 560 and 500, I imagine the goal of the engineers was 100 less in each category: 460 and 400. However I imagine BMW M would create horsepower levels that separate the 2, 4, and 6 in a simplified manner. For example: M6: 560 500 8cyl M4: 450 400 6cyl M2: 340 300 4cyl A scheme like that would make sense and sound plausible to me. Last edited by BigMacSmallFries; 05-22-2013 at 02:01 PM.. |
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05-22-2013, 01:51 PM | #46 |
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05-22-2013, 01:56 PM | #48 |
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I may have to do another euro delivery lol
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05-22-2013, 01:58 PM | #49 |
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i agree with you about power, but there are different ways to get there....revs being the other obvious one besides torque. the engineer may decide that tapering off the torque quickly (especially in a boosted engine) is worth it from a durability point of view and that can be compensated with increased Revs. My point is that an engine that runs 70% torque at red-line is not inferior to an engine that runs 80% just b/c the % is lower.
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05-22-2013, 02:02 PM | #50 |
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05-22-2013, 02:05 PM | #51 | ||
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I still question your statement where torque produced past 5252RPM is irrelevant ![]() 5252 is simply a constant for the power/torque/RPM relationship in the imperial system. This number is meaningless in the actual physics of the engine. Last edited by CanAutM3; 05-22-2013 at 02:54 PM.. |
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05-22-2013, 02:10 PM | #53 |
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Looking like another winner. My only concern is if the high redline is artificial. If the power is flat from 5500 on up, then the car won't have that continuous rush of power. My 335i was like that. No real reason to go over 6k rpm. All that would happen is a lot of noise and no increase in power delivery.
I hope they aren't doing that just to market this new M3/M4 as a "high rev" engine to appease the M masses. Time will tell, but I would be surprised if this new version of the M legacy wasn't fantastic. |
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05-22-2013, 02:33 PM | #56 | |
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looking forward to pages and pages of posts from doubting thomases that LOVE their BMW motors (inline 6 only!!!) but somehow feel that BMW AG can't improve on motor design or somethng... " no way it will have an 8K redline with a turbo... " " turbos don't rev high.. " " i won't buy it if it's not naturally aspirated... " i won't buy it if it's not an inline 6 " etc.. ![]() |
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05-22-2013, 02:46 PM | #58 | |
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In no time you have people mentioning 8,000 redline. Just like the near E46 M3 weight comments. |
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05-22-2013, 02:48 PM | #59 |
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05-22-2013, 02:51 PM | #60 | |
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I see your point about what I said about 70% of torque at redline vs 80%, I wasn't clear on what my point was. I'm trying to say that the torque is dropping off rapidly compared to peak torque which makes for an N54/N55 style lazy motor that doesn't pull hard towards redline vs what we like to see in an M motor where the motor makes most of its power right at or near redline instead of making peak power at like 5,500RPM. This is the difference between a car that doesn't really feel that fast and a car that pushes you back in your seat in each gear as it pulls harder and harder. The numbers S62 came up with on the first page look realistic to me (and yes, that would be a power curve similar to the M5/M6) but you can see what I'm talking about where the torque curve drops rapidly and the horsepower curve is a big plateau instead of a peak like the current M3. Ironically, this type of power curve will result in a faster car (with a huge area under the curve) but one which may feel less fast than a peakier power curve from behind the wheel. Last edited by Remonster; 05-22-2013 at 02:59 PM.. |
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05-22-2013, 02:53 PM | #61 | |
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"nearly 8,000"...something like 7,800 is a world apart from 8,500. |
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05-22-2013, 03:02 PM | #64 |
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05-22-2013, 03:03 PM | #65 |
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Agree, the S65 is everything good said about it and more. It's truly an epic masterpiece. However it's still just the power plant. Put it in the F10 and it's still a lousy uninspiring drive but put the N55 in the E9X M3 and you still have a pretty awesome car. So much talk about the engine when to me the main concern is the steering. The chassi communication is another but the spy shots and videos indicates a fantastic well sorted chassi with very little body motions. The steering is really the thing. I hope they are testing both a HPS and EPS system and only go with the EPS if it's really good.
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05-22-2013, 03:05 PM | #66 | |
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BMW could get around this by having two (or more) differently sized turbos like the Mark IV Supra, M550d, etc. so I'm very interested to see what this S55 motor turns out to be like. btw, here's one owner's review of his MP4-12c; "- Throttle response leaves a little to be desired. - TURBO LAG! Below 3000rpm the small engine does show through. You really have to be above 3000rpm all the time otherwise it feels like I am driving my smart car. There really is virtually no get up and go at all compared to my similar cars." Last edited by Remonster; 05-22-2013 at 03:11 PM.. |
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