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The BMW Range
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Learning to use an E90
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<blockquote data-quote="astroboy" data-source="post: 277877" data-attributes="member: 4527"><p>How come E46 325i FC better? What's the different? I thought every newer generation BMW engine will give 15% more power and 15% more economical to run?</p><p></p><p>Some of the advance engine features being adopted by BMW is:</p><p></p><p>1. Auto Start Stop (For Manual), where engine cuts off during idling, cabin temperature attained, engine warmed up, plus few other condition and restarted when clutch is pressed.</p><p></p><p>2. On demand electric water pump to reduce load to engine and will only work when water rotation is necessary (when engine temperature is above the threshold)</p><p></p><p>3. Electric-hydraulic power steering. Like number 2, will reduce load to engine because most of the time, car travel straight and don't need the pump keep pumping in the conventional way, this will increase engine efficiency.</p><p></p><p>4. Auto aerodynamic flap which will shut the radiator inlet, brake cooling duct to improve aerodynamic when the working temperature is below the threshold.</p><p></p><p>5. Even the alternator is smarter now and only work when car slowing down, or when brake depressed or battery has reach low battery warning.</p><p></p><p>6. Lighter engine, lighter crankcase... bla..bla..bla..</p><p></p><p>I think even the oil pump also will be driven by electric, which I don't buy the idea because u need oil circulation at all times. Once the pump fail, engine must stall or else hancur, same like the on demand water pump... sounds scary.. that's why people add ancillary fan in the engine bay.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> How to use these car when so kiasi.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>Looks like the engine is relieved of all other functions except driving the wheels. The rest are on electric power.. this gives additional burden to the battery and alternator. I can foresee the newer generation BMWs comes with even bigger battery (now 90AH <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" />) and bigger alternator... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></p><p></p><p>More power, better FC but expensive alternator and battery.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /> Semua ada trade-off..</p></blockquote><p></p>
[QUOTE="astroboy, post: 277877, member: 4527"] How come E46 325i FC better? What's the different? I thought every newer generation BMW engine will give 15% more power and 15% more economical to run? Some of the advance engine features being adopted by BMW is: 1. Auto Start Stop (For Manual), where engine cuts off during idling, cabin temperature attained, engine warmed up, plus few other condition and restarted when clutch is pressed. 2. On demand electric water pump to reduce load to engine and will only work when water rotation is necessary (when engine temperature is above the threshold) 3. Electric-hydraulic power steering. Like number 2, will reduce load to engine because most of the time, car travel straight and don't need the pump keep pumping in the conventional way, this will increase engine efficiency. 4. Auto aerodynamic flap which will shut the radiator inlet, brake cooling duct to improve aerodynamic when the working temperature is below the threshold. 5. Even the alternator is smarter now and only work when car slowing down, or when brake depressed or battery has reach low battery warning. 6. Lighter engine, lighter crankcase... bla..bla..bla.. I think even the oil pump also will be driven by electric, which I don't buy the idea because u need oil circulation at all times. Once the pump fail, engine must stall or else hancur, same like the on demand water pump... sounds scary.. that's why people add ancillary fan in the engine bay.. :D How to use these car when so kiasi.. :D Looks like the engine is relieved of all other functions except driving the wheels. The rest are on electric power.. this gives additional burden to the battery and alternator. I can foresee the newer generation BMWs comes with even bigger battery (now 90AH :D) and bigger alternator... :rolleyes: More power, better FC but expensive alternator and battery.. :( Semua ada trade-off.. [/QUOTE]
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