06-21-2017, 12:03 PM
|
#11 (permalink)
|
|
Master EcoModder
Join Date: Jun 2008
Location: Oregon
Posts: 560
Thanks: 259
Thanked 202 Times in 159 Posts
|
Looks great!
__________________
02 Saturn L200 5 speed- 265k miles
84 Gmc 6.5 na diesel K30 4x4, TMU
2006 Lincoln Navigator, 215k miles
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
06-21-2017, 12:19 PM
|
#12 (permalink)
|
|
Master Novice
Join Date: Jan 2008
Location: SE USA - East Tennessee
Posts: 2,314
Thanks: 427
Thanked 616 Times in 450 Posts
|
38+ is a damned good first tank.
This should be interesting to watch.
__________________
Lead or follow. Either is fine.
|
|
|
|
|
06-22-2017, 02:02 AM
|
#13 (permalink)
|
|
Master EcoModder
Join Date: Jun 2016
Location: KY
Posts: 1,352
Thanks: 63
Thanked 366 Times in 269 Posts
|
Well thanks... The car in stock form (with upper grille block which has done about nothing) has delivered a high of 42.2mpg on my most recent tank, with only advanced hypermiling...(mostly just EOC)... Can't wait to do a belly pan, diffuser, and other various aero mods
__________________
My current Ecotec project...
My last Ecotec project...
|
|
|
|
|
06-22-2017, 07:10 PM
|
#14 (permalink)
|
|
Master EcoModder
Join Date: Jun 2016
Location: KY
Posts: 1,352
Thanks: 63
Thanked 366 Times in 269 Posts
|
I was thinking something similar... My ion Redline cane with 225/45-17 so I should have room to upsize...
__________________
My current Ecotec project...
My last Ecotec project...
|
|
|
|
|
06-23-2017, 05:23 AM
|
#15 (permalink)
|
|
It's all about Diesel
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,947
Thanks: 0
Thanked 1,701 Times in 1,519 Posts
|
Upsize? Wouldn't you get more benefit from narrower tyres?
|
|
|
|
|
The Following User Says Thank You to cRiPpLe_rOoStEr For This Useful Post:
|
|
|
06-23-2017, 07:59 AM
|
#16 (permalink)
|
|
home of the odd vehicles
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,891
Thanks: 506
Thanked 868 Times in 654 Posts
|
Quote:
Originally Posted by cRiPpLe_rOoStEr
Upsize? Wouldn't you get more benefit from narrower tyres?
|
I went with 185/65 ecopias because it was hundreds cheaper per set |
|
|
|
|
06-23-2017, 10:19 AM
|
#17 (permalink)
|
|
Administrator
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203
Thanks: 2,501
Thanked 2,589 Times in 1,555 Posts
|
So what is the next mod going to be?
|
|
|
|
|
06-23-2017, 10:57 AM
|
#18 (permalink)
|
|
It's all about Diesel
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,947
Thanks: 0
Thanked 1,701 Times in 1,519 Posts
|
Quote:
Originally Posted by rmay635703
I went with 185/65 ecopias because it was hundreds cheaper per set
|
I was trying to point the lower rolling resistence inherent to narrower tyres, but yes, they're usually cheaper. No wonder many folks are quite disappointed that some tyre sizes that used to be fairly common have now become nearly unobtainium. |
|
|
|
|
06-23-2017, 03:53 PM
|
#19 (permalink)
|
|
It's all about Diesel
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,947
Thanks: 0
Thanked 1,701 Times in 1,519 Posts
|
Quote:
Originally Posted by roosterk0031
According to Capri Racer(barrystiretech), all else equal wider has lower RR.
|
It's quite surprising to me. Narrower tyres putting more pressure to the pavement would be supposed to improve traction, and they're also lighter even though sometimes the weight difference might sound negligible. |
|
|
|
|
06-23-2017, 09:08 PM
|
#20 (permalink)
|
|
home of the odd vehicles
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,891
Thanks: 506
Thanked 868 Times in 654 Posts
|
Quote:
Originally Posted by cRiPpLe_rOoStEr
It's quite surprising to me. Narrower tyres putting more pressure to the pavement would be supposed to improve traction, and they're also lighter even though sometimes the weight difference might sound negligible.
|
Narrower tires on my cobalt increased FE and speedo was under 1% off.
While larger tires could have lower RR most are heavier to support a larger vehicle which drives higher RR
Add to this they drive higher CDa which may outweigh aero differences.
|
|
|
|
|
