11-10-2016, 10:11 PM | #353 | ||
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http://m.wardsauto.com/test-drives/b...gine-new-again
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11-10-2016, 10:29 PM | #354 | |
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11-11-2016, 03:06 AM | #355 |
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11-11-2016, 07:53 AM | #356 |
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Another rumour from dealer source today is that the base model retains N55 but a CS / CSL test mule is currently running N55 but with water injection system from M4 GTS.
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11-11-2016, 08:02 AM | #357 |
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11-11-2016, 10:11 AM | #358 | |
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"Manufactured in Steyr, Austria, the intercooled engine has a closed-deck design, meaning the cylinder water jacket is closed at the top. The result is an engine that is extremely rigid and can endure higher cylinder pressures and accommodate more horsepower and torque. Higher output required grey cast-iron cylinder liners, which add weight relative to the spray-in liners they replace but absolutely are necessary..." I thought this 'is it closed deck or not' topic was being consistently debated and nobody was 100% sure. This guy seems quite matter of fact. |
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11-11-2016, 11:37 AM | #360 | |
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It's the S55 with spray in liners and obviously has more power than the N55 will ever have without having to resort to "absolute necessary cast liners".... So I wouldn't take this description as gospel. Last edited by Nine Lives; 11-11-2016 at 11:51 AM.. |
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11-11-2016, 12:09 PM | #362 |
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Drives: F87 M2<E92 M3<E46 M3
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The OG E28 M5 had an M code engine.
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11-11-2016, 02:21 PM | #364 |
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11-11-2016, 02:26 PM | #365 | |
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11-11-2016, 04:43 PM | #366 |
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11-11-2016, 05:27 PM | #367 | |
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As a point of reference, I built the S50 motor in my late e36 M3 with upgraded pistons, rings, and forged connecting rods (it already had a forged crank) for a custom turbo setup. In stock form on 93, this engine with good tuning could handle less than 450 whp with some reliability (head gasket was weak point). With the built motor, tuning, larger turbo, and more boost, the motor could make upwards of 600whp easily and reliably on 93. Add water injection and race fuel, and 800whp is attainable. My point is that that with the internal engine modifications that BMW made to our N55, there is an excellent base for making pretty big power with minimal modifications. For example, a larger but efficient turbo (new charge & down piping required), external wastegate, BOV, boost controller, larger intercooler, better turbo manifold, and tune would most likely get the ///M2 in the 450-500whp area. Of course, this could be expensive. But as time passes, and more options become available, prices will come down. Just keep in mind, the hardware can only work as well as the tuner makes it work. And one last thing... It sounds much better than the S55 (ball bearings raping cement). Last edited by switlikbob; 11-11-2016 at 05:37 PM.. |
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11-11-2016, 06:50 PM | #368 | |
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'74 2002tii, Sienna Braun Metallic, Manual, Sold; '84 e28 533i, Burgundrot Metallic, Manual, Sold; '95 e36 M3, Avus Blau Metallic, Manual, Sold; '06 e60 M5, Silver Grau Metallic, SMG, Sold; '09 e82 135i MSport, LeMans Blue, Manual, Sold
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11-11-2016, 06:51 PM | #369 | |
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'74 2002tii, Sienna Braun Metallic, Manual, Sold; '84 e28 533i, Burgundrot Metallic, Manual, Sold; '95 e36 M3, Avus Blau Metallic, Manual, Sold; '06 e60 M5, Silver Grau Metallic, SMG, Sold; '09 e82 135i MSport, LeMans Blue, Manual, Sold
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11-11-2016, 07:01 PM | #370 |
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11-11-2016, 07:18 PM | #371 |
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11-11-2016, 07:55 PM | #372 | |
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If you want to use Nürburgring lap times as the benchmark for the better car why not look at a Civic Type R or Megane RS Trophy or Golf GTI Clubsport S? They're all quicker around the Ring than the M2, but that doesn't necessarily make them better cars. I may end up waiting for "only" LED lights and 20hp but that's an improvement on what you've already said is an amazing car anyway. So it's a win. I'm also hoping for interior colour options, white backlit dials, birds eye view cameras and active blind spot assist. If it gets any of those, great, an awesome car becomes even more awesomer. If it doesn't get them, then so be it, I still get an awesome car anyway. It's a win/win. |
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11-11-2016, 08:08 PM | #373 |
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11-11-2016, 08:22 PM | #374 | |
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According to the Bosch numbers, it'd be like 6 times a year, or every 8 fillups for me. However, BMW says it depends on driving style: every fill up when racing or every 5 if driving "fast". http://www.m-power.com/_open/s/varli...d=3301&lang=en "In rigorous action out on the racetrack, it is always necessary to refill the water supply whenever the car must refuel. During standard operation, the intervals between water refills are considerably longer, depending on the driving style. Even when driving faster on the motorway, it is only necessary to refill the water container roughly every five stops for refuelling. To ensure the system is as suitable as possible for daily use, it does not require any additional maintenance." Again, hardly a concern! |
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