12-01-2018, 02:08 PM
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#21 (permalink)
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which
Quote:
Originally Posted by Vman455
Which are you arguing here, 100 MPGe at 100 mph, or 100 MPGe at 100 kph?
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It's 100-mpg @ 100-mph.
*32.7 kWh is equivalent to 1-gallon of gas.(E-10)
*1-gallon @ 100-mph= 100 mpg.
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12-05-2018, 11:55 AM
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#22 (permalink)
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Tesla-Model-3 power graph corrections
The imbecile who did the original power curve has been fired and sent to the Saudi Embassy in Turkey.
The Rolling-Resistance portion was inadvertently over-represented.(a horsepower value was inserted where it should have been in kW).
New graphs are in the works and will be in the mail to Aerostealth tomorrow.
The overall road load,plus planetary gear losses remain as before,so range predictions remain as originally reported.
The new graphic grunt has been tasked with representing the Model-3 at it's original 0.23 drag coefficient,plus 0.13 as well.
If you remove all the orange drag portion from the table,you'd basically have a look at the performance of Model-3 inside the Hyper-Loop.Not as low of a road load as on the Moon,but pretty low.
Appreciate your patience.
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12-05-2018, 01:21 PM
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#23 (permalink)
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Quote:
Originally Posted by aerohead
It's 100-mpg @ 100-mph.
*32.7 kWh is equivalent to 1-gallon of gas.(E-10)
*1-gallon @ 100-mph= 100 mpg.
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Nitpicking, but the EPA says 1 gal.US is equivalent of 33.7 kWh...
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12-05-2018, 01:29 PM
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#24 (permalink)
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Epa
Quote:
Originally Posted by Frank
Nitpicking, but the EPA says 1 gal.US is equivalent of 33.7 kWh...
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AeroStealth and I chewed on this one before deciding on the 32.7 kWh metric.
Except on American Indian reservations,and a few exceptions,E10 Regular gas,across the country, has a lower heating value than what the EPA suggests.So we decided to use a value more consistent with the current market,as we understood it.
Nitpicking is a good thing,and we don't want to come off as if we're from outer space,but most would argue that we are.
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12-05-2018, 01:36 PM
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#25 (permalink)
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100 mpg e at 100 mph is 327 watt hours per mile. The EPA uses 33.7 kWh per gallon equivalent so we could argue 337 watt hours per mile if we chose. We are not talking kilometers and if we were we would use 161 kpg e at 161 kph whi h is mixing measurement systems and should not be done. We would have to use liters which would change all the numbers.
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12-05-2018, 01:43 PM
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#26 (permalink)
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Totally understandable...
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12-05-2018, 04:03 PM
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#27 (permalink)
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So all you have to do is averge 33kw at 100mph.
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12-05-2018, 04:14 PM
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#28 (permalink)
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Yep
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12-05-2018, 09:49 PM
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#29 (permalink)
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My very lightly aero modded leaf makes about 85 mph with about 30kw of power going to the motor.
At governed speed, 94mph I'm at 40kw.
So an electric vehicle could totally do it if it was a little more aero than a leaf. Which isn't all that aerodynamic.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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12-06-2018, 01:37 PM
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#30 (permalink)
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Quote:
Originally Posted by oil pan 4
Well for compairson my leaf at 94mph gets around around 2 miles per kwh.
Which is equal to somewhere around 50 to 60 mpg.
So I wouldn't say that it's impossible if "nothing is off the table" as far as aero mods.
Also at .23 Cd aren't some prius cars already close to that?
To get .13 Cd doesn't the car start looking more like a air craft than a car?
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The Tesla Model 3 has a Cd of 0.23 - with the aero wheel covers, of course.
70MPGe at 100MPH is one thing - 100MPGe at 100MPH is quite another thing.
If my memory serves me, the Edison2 VLC electric got about 245MPGe at 55MPH - with a DC motor. If it had an efficient AC motor, like in the Model 3, it would have been significantly higher.
The VLC had a Cd of 0.16 - in its ICE form, so slightly lower without the engine cooling.
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