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01-10-2011, 11:12 AM | #23 | |
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Yep, I read that thread on M5board, he got banned for beating an E39 M5 in his M3. Are you kidding me? He was completely respectful in that thread but seems he was banned for showing evidence, yes actual evidence, that contradicted the E39 M5 owners who wanted to act like their cars were faster than the M3. Even Gustav who runs that board I believe agreed with him. Oh, so his posts were removed and I am supposed to rely on your memory? Sounds like a personal grudge went on that continues as the censored link in the OP shows. From what I read and from this article, the guy knows his stuff just as you said. No wonder he has his own site. You mean S54, not N54. Anyone could have put that together? Well why didn't you? Go put something together and let's see how it stacks up until then please keep your negativity out of a good discussion of a fantastic article. |
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01-10-2011, 11:17 AM | #24 | |
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01-10-2011, 11:29 AM | #25 | |
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Cheers, e46e92 P.S.: waiting to get banned or have this post removed.
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"...it's not about the money and not about the brand of the car, it's about handling,performance and passion......And that, no other car has all together like an M3........when you talk about the most complete car the M is invincible." --Tony Kanaan. |
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01-10-2011, 11:31 AM | #26 | |
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Drives: E60 M5, E71 X6M, E46 M3
Join Date: Feb 2008
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Garage List 2006 BMW E46 M3 'vert [0.00]
2008 BMW M5 [0.00] 2011 BMW E92 [0.00] 2012 BMW X6M [0.00] 2003 E46 M3 [0.00] |
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Current: 2006 E46 M3 'vert 6-sp 2008 E60 M5, 2011 E92 328 6-sp, 2011 E70 N55, 2012 E71 X6M
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01-10-2011, 11:38 AM | #27 | ||||
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This is what I see: Quote:
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01-10-2011, 11:39 AM | #28 | |
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01-10-2011, 01:41 PM | #29 |
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Love both of the engines (have owned both) but playing down the bearing issues on the early S54s and not mentioning the bad coil supplier is an oversight imo. The comments about the M3 GTR and Porsche were clearly BMW slanted. Fact is, they worked a loophole for a little while got great results and then packed in. A lot of us were really hoping for a production M3 with a V8.
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01-10-2011, 03:55 PM | #30 | |
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This post in regard to the M engine comparison is a case in point. It's a very good article from my point of view, but marred by being so positive about BMW and downright nasty to Porsche. In reality, Porsche has one of the most prolific and successful automotive race histories on the planet, perhaps only secondary to Bugatti in that regard - a towering achievement compared to most vendors, including BMW. It also ignores how the ALMS folks balance everybody's performance over time, typically by messing with minimum legal vehicle weights. The article is also technically innaccurate in that it credits the E46 engine's better torque-per-liter numbers to having a long stroke. A long stroke does NOT in fact increase torque-per-liter, period. Bruce Last edited by bruce.augenstein@comcast.; 01-10-2011 at 04:16 PM.. |
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01-10-2011, 06:23 PM | #31 | |
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01-10-2011, 07:17 PM | #32 | |
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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01-11-2011, 11:43 AM | #35 | |
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Take a cylinder, any cylinder, with a relatively large bore and short stroke. Then devise another cylinder of equal capacity, except make it a small bore cylinder with long stroke. Max leverage (meaning max potential thrust, and therefore torque) of either cylinder occurs when the crank throw and rod are at right angles (90 degrees) to each other, and it's obvious that a longer stroke will deliver more thrust in a proportional way. That is to say, a 25% longer stroke will deliver mechanical leverage that is 25% greater. However, you had to reduce the bore of your imaginary cylinder with the long stroke in order to keep cylinder capacity the same. Therefore, with a smaller bore, the overall area of the piston crown is reduced, and at any given cylinder pressure, there will be less downward pressure on the piston at any given psi. Ten square inches of piston top at 1000 psi equals ten thousand psi of of downward pressure. Twelve square inches at 1000 psi equals twelve thousand pounds, and so on. So pick your poison. Big downward thust with reduced leverage, or smaller downward thrust with increased leverage. As an example, try a 4" piston with a 3" stroke, against a 3" piston with a 5.33" stroke. Both come out to about 37.7 cubic inches. You'll find that the overall twisting force (torque) delivered to the crankshaft at a given cylinder pressure on each comes out equal, to within rounding errors on your calculator. Or not. Refute me, or agree with me. Bruce PS - I am assuming identical rod-length-to-stroke ratios on these two cylinders, because life starts to get very complicated indeed if they differ. Last edited by bruce.augenstein@comcast.; 01-11-2011 at 12:10 PM.. |
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01-11-2011, 01:14 PM | #36 | |
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.....speaking of the devil..... Cheers, e46e92
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