Re: [EVDL] Lightening a body and chassis.

[Lawrence Rhodes via EV]

Yes.  I know how to make a vehicle like Stella, Stella Lux or Stella 
Vie...however there is a lot that goes into that...it would be much easier to 
cut up or that is cut out parts of manufactured vehicles to lower the weight.  
If you watched the video that I included in the original post you would see a 
vehicle that looked familiar but with just pieces holding it together. Narrower 
wheels smaller springs...etc.  I propose filling in those parts with carbon or 
plastic.  Also if you modify a vehicle it makes licensing it easier as 
cosmetically it might look more normal. In a van you could lower the weight of 
the back part and keep more strength in the passenger part.   Lawrence Rhodes...

  From: Jorg Brown 
 To: Lawrence Rhodes ; Electric Vehicle Discussion 
List  
 Sent: Friday, October 27, 2017 10:37 PM
 Subject: Re: [EVDL] Lightening a body and chassis.
   
"how to make a viable solar vehicle"
I'd suggest starting by looking at the vehicles in 
https://www.worldsolarchallenge.org/ ; they are averaging more than 40mph.  
(Good article about advancements over time at 
http://www.abc.net.au/news/2017-10-06/world-solar-challenge-innovation-technology-outstrips-dreams/9019908
 )
Also look into the "Cruiser Class", which are more realistic - for example 
having enough interior space to carry 5 people.
On Fri, Oct 27, 2017 at 7:10 PM, Lawrence Rhodes via EV  
wrote:

I got an idea from an old VW ad.
https://www.youtube.com/watch? v=vATQaJmUdh8Just how much can you cut from the 
skin and chassis use lighter wheels and springs and still have some safety.  
For instance if you hacked up a VW van and put a Leaf Drive train or even 
smaller like a Chevy Spark or Smart drive train.  Reinforced with carbon fiber. 
 Do some aero mods.  I bet you could get the shell of a VW Bus from the 90's 
down to under 1500 pounds.  Our little friend the VW bug was chopped rather 
severely but at a lighter weight it doesn't have to be so strong.  Just 
thinking out loud on how to make a viable solar vehicle without breaking the 
bank. The shell of the vehicle would be your guide.  You could easily chop the 
top.  So many places carbon fiber could be used to fill in the chopped parts 
and strengthen the vehicle.  Lawrence Rhodes
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Re: [EVDL] Lightening a body and chassis.

[corbin dunn via EV]

> On Oct 27, 2017, at 7:10 PM, Lawrence Rhodes via EV  wrote:
> 
> I got an idea from an old VW ad.  
> https://www.youtube.com/watch?v=vATQaJmUdh8Just how much can you cut from the 
> skin and chassis use lighter wheels and springs and still have some safety.  
> For instance if you hacked up a VW van and put a Leaf Drive train or even 
> smaller like a Chevy Spark or Smart drive train.  Reinforced with carbon 
> fiber.  Do some aero mods.  I bet you could get the shell of a VW Bus from 
> the 90's down to under 1500 pounds.  Our little friend the VW bug was chopped 
> rather severely but at a lighter weight it doesn't have to be so strong.  
> Just thinking out loud on how to make a viable solar vehicle without breaking 
> the bank. The shell of the vehicle would be your guide.  You could easily 
> chop the top.  So many places carbon fiber could be used to fill in the 
> chopped parts and strengthen the vehicle.  Lawrence Rhodes   

I think in the case of an old VW bug (and even more so a VW bus), your worse 
enemy is drag. My 1969 VW is pretty light, but gets pretty terrible watt/hours 
per mile (280-300…on average, 250 if you are careful and avoid hills). My Model 
S can get below 300 pretty easily, and that car is as heavy as a tank. 
Aerodynamics and drag are the key factors here, so instead of concentrating on 
weight you’d have to concentrate on aero, and have some wind tunnel time to 
make it 

However, I do know that some P100D/L Model S’s dropped 0.1-0.2 seconds off 
times by simply removing the interior bits…so weight does mean something. I 
wonder if a 50kwhr MS pack could deliver the same amount of energy to such a 
car? If so, the drop in weight would make it a monstrosity on the drag strip.

corbin
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Re: [EVDL] Lightening a body and chassis.

[Jorg Brown via EV]

"how to make a viable solar vehicle"

I'd suggest starting by looking at the vehicles in
https://www.worldsolarchallenge.org/ ; they are averaging more than 40mph.
(Good article about advancements over time at
http://www.abc.net.au/news/2017-10-06/world-solar-challenge-innovation-technology-outstrips-dreams/9019908
)

Also look into the "Cruiser Class", which are more realistic - for example
having enough interior space to carry 5 people.

On Fri, Oct 27, 2017 at 7:10 PM, Lawrence Rhodes via EV 
wrote:

> I got an idea from an old VW ad.
> https://www.youtube.com/watch?v=vATQaJmUdh8Just how much can you cut from
> the skin and chassis use lighter wheels and springs and still have some
> safety.  For instance if you hacked up a VW van and put a Leaf Drive train
> or even smaller like a Chevy Spark or Smart drive train.  Reinforced with
> carbon fiber.  Do some aero mods.  I bet you could get the shell of a VW
> Bus from the 90's down to under 1500 pounds.  Our little friend the VW bug
> was chopped rather severely but at a lighter weight it doesn't have to be
> so strong.  Just thinking out loud on how to make a viable solar vehicle
> without breaking the bank. The shell of the vehicle would be your guide.
> You could easily chop the top.  So many places carbon fiber could be used
> to fill in the chopped parts and strengthen the vehicle.  Lawrence Rhodes
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> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
> http://lists.evdl.org/listinfo.cgi/ev-evdl.org
> Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/
> group/NEDRA)
>
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