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Daily banter For everything, and anything that doesnt fit in elsewhere |
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#11
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MikkiJane are you up to doing my D3 one day ?
sounds like it would be rear wheel drive as best option lets face it now its worth next to nothing what a car it would make and my son would have a worlds first Audezla Teslaudi MJezlaudi i could start stripping bits off and mothball the shell
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Looking for the Holy Grail Audi .. 2018 VW Caravelle Executive T6 2010 A6-C6 3.0tdi LeMans Quattro |
#12
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16 module 85 battery new is actually about 81kWh total capacity and 90 is about 85-86. 4kWh is reserved capacity when the left range indicates '0'. 90 is degrading faster at start but then slows down, by the year 2 or 3 they are about the same. By the year 5,100k miles they are all about 75-77kWh and with 4kWh reserved you get about 71-73kWh usable which is about 250-260 miles indicated on full charge. You do not charge it full because the fuller it gets the slower it charges and it's also not goog for battery to charge it full and you do not run it empty either. So in real life you use 20-80% which is 60% so would be 150 miles indicated range. It's possible to get indicated range if you do not use AC or heating and take it easy but in reality you get maybe 130 miles out of 150 in summer and 100 in winter. Then add the fact that A8 will probably has higher air resistance and it will not be packaged and optimised as well as Tesla. If you keep the charging range 20-80% you will get maybe 70-100 miles usable range.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure Last edited by ainarssems; 5th December 2021 at 11:48 PM. |
#13
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yeh i suppose its a case of doing one first which is a fair old task i imagine
ironing out the bad bits , fabrication work maybe just shut up robert and buy a Tesla .. lol
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Looking for the Holy Grail Audi .. 2018 VW Caravelle Executive T6 2010 A6-C6 3.0tdi LeMans Quattro |
#14
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#15
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So my number for the installed range in an '8 would be higher, and almost certainly in excess of 150 miles using an 85/90D battery. However, if such an installation was in my S8, I'd still drive it like one (what would be the point otherwise, with all that instant power, and no auto gearbox lag ? ), so the range would probably end up closer to Ainars (upper-end) estimate anyway - S8s are meant to be driven, Model Ss less so
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Autos Autos everywhere... (1) 2015 Tesla Model S: (was 85D, now 90D ). Silent and deadly, and very fast... But not as fast as Ian's M3P- (2) 2002 D2 S8 Final Edition: Bulletproof and faultless: Brilliant Black with Extended (Red!) Leather. Three-times winner of Best D2 1st prize (3) 1997 Fiat Coupe 20v Turbo: Scots (! ) Green. Fragile, but beautiful. (4) 2010 Fiat Panda 100HP. White Pandamonium (Final Edition!!). Pure old-fashioned 6-speed go-karting. Last edited by tintin; 7th December 2021 at 03:10 AM. |
#16
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Lithium NCA (Nickel Cobalt Aluminium) batteries like the ones used in Model S does not like being charged too much and from the data I have gathered before buying Tesla and continued to after buying it it seems that most battery failures happen to the cars that are regularly charged close to 100%. 90% might be OK for occasional road trip but definitely not for regular occurrence. My opinion is 80% in summer, maybe 85% in winter. The lower level does not seem to be that important for battery life but you do not want to run out end up in situation where you ran out of juice because you went to charger and it was either out of order or all chargers taken. I have definitely ben in both situations both with Model S and ID.4 LFP ( Lithium Iron Phosphate) like used in latest standard range cars does not mind being fully charged and does not slow charging speed as much as it gets fuller. But they have lower voltage 3.2V instead of 3.7V, lower energy density, and lower output but remain viable option as they use more common materials and are cheaper and it does not make that much of a difference in every day use. If you charge NCA 80kWh battery to 80% that's 64kWh and at the same time you could have 65kWh LFP battery and charge it to full. You might loose some performance and o 0-60 mph in 5s instead of 4s. I have seen reviews people using cells from Model S for other things and testing them fully discharged. I have seen one guy fully draining single cell, connecting resistor to it do drain any residual power, storing it with resistor attached for a year. And the charging it up and it was still fine and had almost full capacity. So while it is not recommended to fully discharge battery and there are no guarantees if you do it regularly it does not seem to be much of the problem. My main concern fully discharging an older battery would be that some cells would get fully discharged while others still having plenty of charge. While the Tesla does good job matching cells and balancing them there is a possibility that some of them degrade a lot faster than others considering there is over 7000 of them and even 1 bad cell can bring the module down putting too much stress on other cells and then the whole battery. There are reports of cars just cutting out at 40% charge as BMS shuts down battery because one of modules gets below the voltage threshold. Of course they are getting replaced on warranty most of the time but something to keep in mind . Now if I am getting to how much energy AC or heating is using I think I need to start it with baseline of what car is using driving along. So while you are driving along at 65-70mph at a steady speed on level surface the motors are using about 20kW and at 30mph about 8-10kW as witnessed by me plugging into powertrain CAN. By the way there are 6 or 7 CANs on Model S as to separate data traffic and prevent it from tripping over each other. Normally they do diagnostics over ethernet either local or over mobile network but there is an option to plug into each different CAN as well. In September while it was quite warm and AC was being used the Thermal controller was showing 1.3-2kW usage so that's about 25% increase in power consumption driving around town, 10% highway. With the cold weather now it goes up to 6kW for thermal controller so about 30% increase at 65mph or 50%+ increase in at town speeds.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure Last edited by ainarssems; 10th December 2021 at 09:53 PM. |
#17
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I'd be tempted to put a stack in the back of boot too. The back bit is so awkward for day to day use that loosing some space would still result in a decent size boot. My old S8 had an LPG tank there and it was no great loss! I'm guessing as battery tech improves we'll get better range from smaller packs, along with high efficiency motors. Tesla are WAY ahead of the pack on almost everything here, but there are still break throughs to be made!
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Current : 2005 A8 Sport 4.2 V8 D3 - LPG working! Previous : 1998 S8 PF 4.2 V8 D2 - Gearbox died ~120k 2002 S8 FL 4.2 40v V8 D2 Prins LPG - Engine valves met pistons ~230K Also : 1996 Jeep Grand Cherokee 4.0l (Post Apocalyptic makeover) 2003 Brabus Smart FourTwo (should sell) 2003 Mazda Rx8 2.3 (might sell) |
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