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Forum: Aerodynamics 05-26-2018, 07:18 AM
Replies: 776
Views: 283,924
Posted By Tesla
Template AS-II and Airfoil Equation overlay

Hey all,
Been away for a few years, but recently got inspired to dig out the old spreadsheets and have another play with the equations and after a lot of fiddling I finally managed to get the specs...
Forum: EcoModding Central 05-07-2018, 10:20 PM
Replies: 88
Views: 8,836
Posted By j12piprius
back from the trip

I'm back, with the 2012 Plug in Prius. The previous owner is quite a nice, helpful fellow, knew exactly what to do, and took excellent care of the car. The display was only 51 mpg for the 150 mile...
Forum: Aerodynamics 01-19-2018, 11:34 AM
Replies: 89
Views: 13,352
Posted By samwichse
I wonder... If you're leaving the top...

I wonder...

If you're leaving the top unenclosed, a nose design that directs the air around the side more, instead of over the top might be more efficient.
Forum: Aerodynamics 09-28-2017, 03:19 PM
Replies: 13
Views: 2,487
Posted By aerostealth
A 0.12 Cd Auto Body model You Tube video

Phillip Knox and I (John Gilkison) shot a You Tube video in my garage of his 0.12 Cd Auto Body model on the 26th of Sept. 2017. I posted it and then I posted a blog at EV World today on the same...
Forum: EcoModding Central 08-29-2017, 06:59 PM
Replies: 25
Views: 3,776
Posted By darcane
Well, once we get some real data compiled, the...

Well, once we get some real data compiled, the story looks a little different.

My go-to site for long term reliability is:
http://www.dashboard-light.com/
They figure out a reliability rating...
Forum: EcoModding Central 08-01-2017, 02:22 PM
Replies: 48
Views: 8,533
Posted By vskid3
There's this car that does what you're looking...

There's this car that does what you're looking for:
https://www.youtube.com/watch?v=4-Vck6oCi3A
Forum: Aerodynamics 07-20-2017, 06:00 AM
Replies: 776
Views: 283,924
Posted By sendler
The best airfoil generator I've found is at Wind...

The best airfoil generator I've found is at Wind and Wet.
.
Online airfoil plotter (http://www.windandwet.com/windturbine/airfoil_plotter/index.php)
.
Forum: Aerodynamics 05-10-2017, 10:18 PM
Replies: 27
Views: 6,094
Posted By BabyDiesel
Use this to plan your attack on the rear of the...

Use this to plan your attack on the rear of the Ridgeline -

https://s26.postimg.org/45w5tz9nd/2009_Ridgelineaero.jpg
Forum: Aerodynamics 04-24-2017, 08:16 AM
Replies: 39
Views: 8,047
Posted By aardvarcus
Here are the proper technical drawings for the...

Here are the proper technical drawings for the truck, obviously the one with the tires would have the ground plane moved up to be scaled properly based on the drop of his truck.
Forum: EcoModding Central 04-17-2017, 01:24 PM
Replies: 10
Views: 1,703
Posted By ECO-AKJ
Tires

I always use tirerack for reviews and ratings on tires,

I personally like the Continental TrueContacts, most are rated 90K miles with a treadwear of 800AA or better, they are quiet and ride nice...
Forum: EcoModding Central 03-12-2017, 07:57 PM
Replies: 6
Views: 1,121
Posted By California98Civic
Well, I'd say if you delted two things that are...

Well, I'd say if you delted two things that are well-known to give you better FE (grill block and hypermiling) and still go the same FE as before the swap, then that suggests the swap might have...
Forum: EcoModding Central 02-24-2017, 02:06 AM
Replies: 9
Views: 2,216
Posted By LittleBlackDuck
Hey Daniel, hang in there - there is a lot of...

Hey Daniel, hang in there - there is a lot of moral support for you here. Even if you don't get another vehicle immediately, staying on EcoModder will keep the brain active and hopefully help you get...
Forum: Aerodynamics 02-22-2017, 12:24 PM
Replies: 15
Views: 4,886
Posted By t vago
The 0.236 C(d)... Dodge?

http://www.allpar.com/photos/concept-cars/dodge/m4s/M4S-dome1c_03.jpg

AllPar.com: Dodge-PPG M4S Pace Car Designer Bob Ackerman Talks About His "Baby"...
Forum: Aerodynamics 02-15-2017, 12:46 AM
Replies: 18
Views: 3,277
Posted By Vman455
Now I've seen EVERYTHING

Streamlined valve stem caps. (http://www.aero-app.com/)

Streamlined VALVE STEM CAPS.
Forum: Aerodynamics 02-05-2017, 07:33 AM
Replies: 71
Views: 16,572
Posted By kach22i
I agree with what everyone else has been saying...

I agree with what everyone else has been saying about reducing Cd and lift if you can. I'm offering this example for reference because it is so iconic and well tested.

Sourced base image below...
Forum: Aerodynamics 02-04-2017, 03:45 PM
Replies: 71
Views: 16,572
Posted By aerohead
1/24-scale

Full-size automobiles achieve a stable coefficient of drag at around 20-mph.
Testing mods in full-scale would require at least a 20-mph test velocity....
Forum: EcoModding Central 01-19-2017, 09:01 PM
Replies: 424
Views: 41,238
Posted By Frank Lee
BWAAHAHAHAHA!!! Yes, please. YOU spell out......

BWAAHAHAHAHA!!! Yes, please. YOU spell out... stuff... for us. :D
Forum: Aerodynamics 01-14-2017, 01:36 PM
Replies: 5
Views: 1,687
Posted By aerohead
Evolution of the Honda Accord

https://www.youtube.com/watch?v=YGqjwTpiMws
Forum: EcoModding Central 01-13-2017, 06:30 PM
Replies: 424
Views: 41,238
Posted By elhigh
Stop saying "1000s" of degrees

You aren't going to see "1000s" of degrees. A competitive drag racer pulling a 540-powered rig through the trap in the mid-8s will see 1300-1500 depending on the tune. That isn't thousands, it's a...
Forum: EcoModding Central 01-12-2017, 12:36 AM
Replies: 424
Views: 41,238
Posted By ByDesign
Having worked for one of the big 3, I can tell...

Having worked for one of the big 3, I can tell you that's not true. Even if you pushed it to mean that it violated emission laws so they couldn't use it. You can certainly do better with fuel...
Forum: EcoModding Central 01-12-2017, 12:03 AM
Replies: 424
Views: 41,238
Posted By ByDesign
Wow, there's a ton of knowledge and large pile of...

Wow, there's a ton of knowledge and large pile of sarcasm in this thread. Even some BS. Makes it fun to read.

Gasoline vs. Propane: Energy Density is the amount of energy that can be released...
Forum: EcoModding Central 01-11-2017, 08:46 PM
Replies: 424
Views: 41,238
Posted By oil pan 4
With super heat engines you are going to produce...

With super heat engines you are going to produce quite a bit of waste heat. That's all there is to it.

The problem with gas engines is their thermodynamic cycle. You have isobaric intake losses...
Forum: EcoModding Central 12-19-2016, 04:38 PM
Replies: 424
Views: 41,238
Posted By Hersbird
The way I do it is to atomize my fuel with an...

The way I do it is to atomize my fuel with an injector in each intake runner. Then the valve opens and the piston sucks it in to a very hot cylinder where as its compressed 11 times normal becomes a...
Forum: EcoModding Central 11-19-2016, 07:22 PM
Replies: 141
Views: 21,585
Posted By MPGeo
Thumbs up Best Tank To Date

Today I filled up and was happy to see my best full tank to date!
413.5 miles on 7.092g = 58.3

Bit warmer mornings than the last tank (upper 40's F - mid 50's F), with warmer afternoon return...
Forum: Aerodynamics 11-14-2016, 03:06 PM
Replies: 205
Views: 89,925
Posted By Macskyver
Over the weekend I got a lot done on the rear...

Over the weekend I got a lot done on the rear window. Here are the wing windows with supports:

http://ecomodder.com/forum/member-macskyver-albums-camper+shell-picture7450-20161112-202336-hdr.jpg...
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