A (Slightly Early) Christmas DAC Story Part One

[Ralf11]

Whoa!  Hang on - there is on manf. that has been famous for making street cars that were grinding it out for a whole day at Le Mans.

 

Porsche.

 

they did it for several decades too - including back in the Late Holocene when cars were a lot less reliable

[Ralf11]

a CG around 17" off the ground is not particularly good - but when I said "can be made" I meant the ultimate design limit, not what people are doing today

 

wt. is the enemy, and current battery tech. means a heavier car than one with an IC engine - luckily we now have Class D to reduce the wt. of the stereo amp a bit

[Ralf11]

accwai - can you list your cars?

you're in Tonto, right?

 

for the record: I own a rather hotrodded air-cooled 911 (the unit body is '73); a VW Vanagon camper (Westy); and a Subaru

prev. cars include: BMW 2002, Toyota Supra, Honda Prelude (only one with a decent stock stereo), Porsche Boxster S, 1975 911, Mazda RX-7 turbo, MB SUV, yada yada

[Ralf11]

no Cayman?

[Ralf11]

https://phys.org/news/2010-06-honda-cr-z-hybrid.html

[Ralf11]

 

[Ralf11]

there is some buried in there - ^ density based on heatXchg IIRC

[Ralf11]

https://electrek.co/2018/05/03/tesla-model-3-battery-cells-rare-data-energy-density-cobalt/

 

but they have more tricks to come than the 2170 technology...

 

there is a lot of research being done on battery tech., not just for EVs but grid storage and implantables too

 

different factors need to be optimized in each case