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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-23-2021, 05:18 PM   #611 (permalink)
EcoModding Lurker
 
Join Date: Jan 2021
Location: Ontario, Canada
Posts: 68
Thanks: 54
Thanked 50 Times in 35 Posts
Thanks, freebeard ! Didn't know how that those pic links work....

For the tufts - No, that pic is before the tuft test....

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-23-2021, 05:25 PM   #612 (permalink)
EcoModding Lurker
 
Join Date: Jan 2021
Location: Ontario, Canada
Posts: 68
Thanks: 54
Thanked 50 Times in 35 Posts
This is first tuft test...

  Reply With Quote
The Following 5 Users Say Thank You to tomi_k For This Useful Post:
aerohead (10-27-2021), Bicycle Bob (10-24-2021), freebeard (10-23-2021), hayden55 (10-25-2021), NeilBlanchard (10-27-2021)
Old 10-24-2021, 06:36 PM   #613 (permalink)
EcoModding Lurker
 
Join Date: Jan 2021
Location: Ontario, Canada
Posts: 68
Thanks: 54
Thanked 50 Times in 35 Posts
Toyota Tundra 2011, 5.7litre (4x4): EPA (hwy) - 13.84liters / 100km (16.99mpg)

-Standard setup (no caps, no tonneau cover or any other mods): 13.8-14.2 liters / 100km, target speed of 110km/h.

-Today's best so far (with the cap and the rear box (already modified from the above pic)) : 11.20liters / 100km (21mpg), close to 200km ride, target speed of 110km/h.

Last edited by tomi_k; 10-24-2021 at 06:59 PM..
  Reply With Quote
The Following 2 Users Say Thank You to tomi_k For This Useful Post:
aerohead (10-27-2021), Bicycle Bob (10-24-2021)
Old 10-24-2021, 09:39 PM   #614 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,483
Thanks: 8,055
Thanked 8,854 Times in 7,308 Posts
That's a respectable improvement. How do you plan to finish it? Paint? Vinyl wrap? Female mold?

The next opportunity might be from the rear axle to the rear bumper. Any plans there?
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"The future should look like the future" -- Elon Musk
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
tomi_k (10-25-2021)
Old 10-25-2021, 09:51 AM   #615 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,354
Thanks: 524
Thanked 1,187 Times in 1,047 Posts
Hmmmm. Impressive flow across the top, might he want a fence of some sort along the top crease to keep the side flow from mixing? And vortice generators ahead of the tail lights.
__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
  Reply With Quote
The Following User Says Thank You to Piotrsko For This Useful Post:
tomi_k (10-25-2021)
Old 10-25-2021, 06:48 PM   #616 (permalink)
EcoModding Lurker
 
Join Date: Jan 2021
Location: Ontario, Canada
Posts: 68
Thanks: 54
Thanked 50 Times in 35 Posts
11.20liters / 100km record was achieved with fins on both sides of the tail box (not above picture)... it was a "quick" hack but basic idea was to reduce "vortices" around the tail lights as seen on earlier tuft tests...

Prior above, the previous record was hovering around 11.7-12.2liters / 100km (2 x 200km driving distance, comparable to current record as weather keeps changing now drastically)...

Last edited by tomi_k; 10-25-2021 at 06:57 PM..
  Reply With Quote
The Following User Says Thank You to tomi_k For This Useful Post:
aerohead (10-27-2021)
Old 10-25-2021, 06:54 PM   #617 (permalink)
EcoModding Lurker
 
Join Date: Jan 2021
Location: Ontario, Canada
Posts: 68
Thanks: 54
Thanked 50 Times in 35 Posts
Freebeard : Plan was to use that as a fiber glass plug but we will see how it goes... reason for not "sealing" the surface yet is purely to see if other mods needs to be made.... and first want to finalize the tail box a bit more... its gone through changes and now already making revision 3.0 of it.... lol

For the bottom side - yes, ideas / plans are there but haven't had a chance to look into details how the actual bottom of the truck looks like... have been there million times but not for this purposes... but yes, it's coming stay tuned...



Last edited by tomi_k; 10-25-2021 at 08:29 PM..
  Reply With Quote
The Following 2 Users Say Thank You to tomi_k For This Useful Post:
aerohead (10-27-2021), freebeard (10-25-2021)
Old 10-27-2021, 11:41 AM   #618 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,221
Thanks: 24,369
Thanked 7,352 Times in 4,753 Posts
tufts

Quote:
Originally Posted by tomi_k View Post
This is first tuft test...

* side flank flow seeking lower pressure above roofline, as would be expected, but gentle intersections, no tuft 'flight', no obvious flow reversion, and probably zero attached vortex pair.
* adding side fairings, with Plexiglass fairings over the taillight lenses to the tail lid tail, which integrate around the top and bottom box radii surrounding the taillights would kill the separation bubbles, for a little additional drag reduction.
* a plan-taper tail section under the tailgate, even at the bottom with the diffuser upslope would optimize the whole kit.
Nice clean separation! The atmosphere thanks you and so do I. It'll be cool to see the underbody done up.
BamZipPow's Toyota T-100 diffuser section's attachment included the rear axle itself, and floated up and down with the suspension travel, simplifying gap issues for the belly pan. He's got a thread for it somewhere here at the Forum. If you haven't seen it, it 's worth a look.
Nice work!
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following 3 Users Say Thank You to aerohead For This Useful Post:
freebeard (10-27-2021), NeilBlanchard (10-27-2021), tomi_k (10-27-2021)
Old 10-27-2021, 01:02 PM   #619 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,483
Thanks: 8,055
Thanked 8,854 Times in 7,308 Posts
It's worth a look:
ecomodder.com/forum/google_search_results.php?q=BamZipPow%27s+Toyota+T-100 About 448 results (0.39 seconds)

ecomodder.com: Reddit has a little freakout over Bam Zip Pow's aero pickup & boat tail trailer



Quote:
Quote:
Originally Posted by freebeard
That's a lot of work to go to so you don't have to lower your truck 4".
It would cost a whole lot more and be a ton more work to lower the truck 4" than the method I'm using now. At least I can return my truck back to full stock in about an hour. Can't say or do that with a lowered truck.

I'm not sure if I'm the only one using a dropped belly pan system. It looks that way so far...trail blazer!
ecomodder.com: T-100 belly pan... This one would be interesting except that the pictures were hosted off-site and are now missing. /ecomodder.com: Partial rear wheel skirts/deflectors? (Always post from Ecomodder albums). There is a similar post at Post #24.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"The future should look like the future" -- Elon Musk
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (10-27-2021)
Old 10-27-2021, 05:43 PM   #620 (permalink)
EcoModding Lurker
 
Join Date: Jan 2021
Location: Ontario, Canada
Posts: 68
Thanks: 54
Thanked 50 Times in 35 Posts
Thanks to all for compliments and encouraging words... Head is full of ideas and there are more ideas than time to complete them, at the moment, but I tackle all big topics first... one by one....
Comments like this encourages a newbie like myself to keep going and trying harder... Lots of questions ahead so be warned.... lol.

And thank you for sharing additional links which most likely would have missed - appreciated !


Last edited by tomi_k; 10-27-2021 at 09:21 PM..
  Reply With Quote
The Following User Says Thank You to tomi_k For This Useful Post:
aerohead (10-27-2021)
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Easy Aero Fix? (Modding a pickup?) DifferentPointofView Aerodynamics 53 04-13-2012 05:46 PM
SAE report: Pickup Truck tailgate aerodynamics... better up, down, or off? MetroMPG Aerodynamics 5 11-17-2011 02:35 PM
Sources of Aerodynamic Drag in Automobiles and Possible Solutions SVOboy Aerodynamics 12 02-17-2010 02:09 PM
How much do y'all pay for trash pickup? roflwaffle Saving@Home 15 08-23-2009 10:46 AM
Daihatsu Mira aerodynamic modifications newtonsfirstlaw Aerodynamics 5 06-13-2009 09:43 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com