Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-02-2020, 02:24 PM   #31 (permalink)
Master EcoModder
 
Join Date: Nov 2012
Location: San Diego, California
Posts: 942
Thanks: 233
Thanked 340 Times in 237 Posts
Jack McCornack used to be on this forum.

https://www.motherearthnews.com/gree...r-zm0z13amzmar

It could be a starting spot.

I agree with FreeBeard about using the classic VW bug platform as it gives you a multitude of kit car choices for bodies. You can adapt various engines to fill your needs.

The suggestion of a diesel as your choice for an engine is a good suggestion to follow. The choice of a Kubota 3 cylinder does not give you much in the way of tuning but does give you a high starting point for thermal efficiency without much effort.

But, if I was you? I'd get a manual front wheel drive with a substantial overdrive and stick a Kubota 3 cylinder on it. Then I would cut off the back end of the vehicle and weld a substantial motorcycle frame and drive wheel on there. That back wheel will be electric drive and will provide a boost during acceleration to make your vehicle more enjoyable and safe to drive. Then build out the body in as streamlined a tadpole configuration as you can.

Or just contact R. Q. Riley.

https://rqriley.com/

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-02-2020, 03:23 PM   #32 (permalink)
Master EcoModder
 
Join Date: Jun 2011
Location: Earth
Posts: 540
Thanks: 23
Thanked 128 Times in 99 Posts
Safety is a big concern. The centered seat is a part of that. I'm uncomfortable sitting right next to the door in my normal car. I want some wiggle room, if hit on the driver's door.

I'm also thinking I will include tubular structure in the body. Imagine the curved line of the aerodynamic streamlining template as a roll bar.

I've been looking at the mpg calculator. To reach 100 mpg at 60 mph the drag coefficient, frontal area, and weight will need to be minimized.
  Reply With Quote
The Following User Says Thank You to sgtlethargic For This Useful Post:
aerohead (10-02-2020)
Old 10-02-2020, 03:44 PM   #33 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 12,358
Thanks: 19,873
Thanked 6,200 Times in 3,825 Posts
tubular structure

Quote:
Originally Posted by sgtlethargic View Post
Safety is a big concern. The centered seat is a part of that. I'm uncomfortable sitting right next to the door in my normal car. I want some wiggle room, if hit on the driver's door.

I'm also thinking I will include tubular structure in the body. Imagine the curved line of the aerodynamic streamlining template as a roll bar.

I've been looking at the mpg calculator. To reach 100 mpg at 60 mph the drag coefficient, frontal area, and weight will need to be minimized.
I'd recommend a copy of the Southern California Timing Association, or National Hot Rod Association, SCCA, rulebook.
They'll lay out chassis and roll cage construction to the Nth-degree. Gumby-79s working through the SCTA book right now for his attempt on the salt, once COVIDs behind us.
EASTWOOD Publications has many a reference on fabrication ,as does You-Tube
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following User Says Thank You to aerohead For This Useful Post:
freebeard (10-02-2020)
Old 10-02-2020, 03:50 PM   #34 (permalink)
Master EcoModder
 
Join Date: Nov 2012
Location: San Diego, California
Posts: 942
Thanks: 233
Thanked 340 Times in 237 Posts
Then build a single or inline seater. No problem.

Quote:
Originally Posted by sgtlethargic View Post
Safety is a big concern. The centered seat is a part of that. I'm uncomfortable sitting right next to the door in my normal car. I want some wiggle room, if hit on the driver's door.

I'm also thinking I will include tubular structure in the body. Imagine the curved line of the aerodynamic streamlining template as a roll bar.

I've been looking at the mpg calculator. To reach 100 mpg at 60 mph the drag coefficient, frontal area, and weight will need to be minimized.
Starting with a classic bug chassis gives you the ability to skirt emissions regulations if it is early enough ('74 and earlier in my neck of the woods). Using a trike configuration allows you to register a custom design as a motorcycle in most jurisdictions.

Fiberglass over foam is easy to do at home with patience. It also provides significant strength and impact absorbing properties ( think surfboards and skis) requiring minimal steel/aluminum under-structure. Unless you really do want the extra NASCAR roll-cage.
  Reply With Quote
Old 10-02-2020, 04:34 PM   #35 (permalink)
Master EcoModder
 
Join Date: May 2019
Location: California
Posts: 390

Tahoe 2020 - '08 Chevy Tahoe H
90 day: 20.83 mpg (US)
Thanks: 0
Thanked 85 Times in 79 Posts
Quote:
Originally Posted by freebeard View Post
Many 'do' was a typo and it's just incoherent otherwise?
yeah typo this laptop is from 07 the KB doe snot ork very well anymore... it's just the front room lapto for general use
  Reply With Quote
The Following User Says Thank You to Tahoe_Hybrid For This Useful Post:
freebeard (10-02-2020)
Old 10-02-2020, 04:59 PM   #36 (permalink)
Master EcoModder
 
Join Date: Jun 2011
Location: Earth
Posts: 540
Thanks: 23
Thanked 128 Times in 99 Posts
Quote:
Originally Posted by RustyLugNut View Post
Starting with a classic bug chassis gives you the ability to skirt emissions regulations if it is early enough ('74 and earlier in my neck of the woods). Using a trike configuration allows you to register a custom design as a motorcycle in most jurisdictions.

Fiberglass over foam is easy to do at home with patience. It also provides significant strength and impact absorbing properties ( think surfboards and skis) requiring minimal steel/aluminum under-structure. Unless you really do want the extra NASCAR roll-cage.
One reason I'll be using a vintage car is because most California smog rules don't apply to them. If I put in a newer engine, then they apply, theoretically. I'm not trying to skirt smog rules- I want to do better than them by using an alternative fuel.

I don't want a full rollcage, just some decent protection.

I plan to work with metal. Freebeard's going to have to build the VW, at this time.
  Reply With Quote
Old 10-02-2020, 05:37 PM   #37 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 18,799
Thanks: 5,227
Thanked 6,199 Times in 4,967 Posts
There was a time when using Beetle parts made more sense. Same with 2CV.



Quote:
I'm also thinking I will include tubular structure in the body. Imagine the curved line of the aerodynamic streamlining template as a roll bar.
[snip]
I plan to work with metal.
Braked and butt-welded Stainless Steel?

__________________
.

Face the danger and row away from it.
David B. Frohnmayer
_________________
  Reply With Quote
Old 10-02-2020, 07:32 PM   #38 (permalink)
Master EcoModder
 
Join Date: Jun 2011
Location: Earth
Posts: 540
Thanks: 23
Thanked 128 Times in 99 Posts
Quote:
Originally Posted by freebeard View Post
There was a time when using Beetle parts made more sense. Same with 2CV.



Braked and butt-welded Stainless Steel?
I plan to start building, building my skills, and experimenting. I already know more or less what I want and what I want to work with.
  Reply With Quote
Old 10-02-2020, 08:02 PM   #39 (permalink)
Rat Racer
 
Fat Charlie's Avatar
 
Join Date: May 2011
Location: Route 16
Posts: 4,150

Al the Third, year four - '13 Honda Fit Base
Team Honda
90 day: 42.9 mpg (US)
Thanks: 1,784
Thanked 1,917 Times in 1,246 Posts
Quote:
Originally Posted by oil pan 4 View Post
A vintage looking car isn't going to have the aerodynamics to get great mpgs.
Vintage weight is probably going to be more of a killer.
__________________

Quote:
Originally Posted by sheepdog44 View Post
Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

  Reply With Quote
Old 10-02-2020, 08:38 PM   #40 (permalink)
Master EcoModder
 
Join Date: Jun 2011
Location: Earth
Posts: 540
Thanks: 23
Thanked 128 Times in 99 Posts
Quote:
Originally Posted by Fat Charlie View Post
Vintage weight is probably going to be more of a killer.
Why? Modern cars are typically heavier than older ones of comparable size due to all of the modern electronic stuff added. A '60 Falcon weighs 2400 pounds. A '57 Metropolitan weighs 1750 pounds.

Vintage styling doesn't weigh any more than any other styling.

Thanks for all of the replies. Notice how they are mostly stemming from the human negativity bias?


Last edited by sgtlethargic; 10-02-2020 at 08:43 PM..
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com