View Poll Results: What PSI are your tires at?
|
<35 PSI
|
|
0 |
0% |
35-40 PSI
|
|
22 |
32.84% |
41-45 PSI
|
|
19 |
28.36% |
46-50 PSI
|
|
11 |
16.42% |
>51 PSI
|
|
15 |
22.39% |
10-28-2019, 01:03 PM
|
#11 (permalink)
|
EcoModding flying lizard
Join Date: May 2012
Location: Georgia
Posts: 743
Thanks: 618
Thanked 263 Times in 175 Posts
|
51 front, 47 rear on my Bridgestone Ecopias, which have a max sidewall of 44 PSI.... I voted 46-50. I don’t plan on going higher.
Edge wear still slightly outpacing the center wear. I corner hard.
__________________
-Kaze o tatakaimasen-
Best trip in V6: 52.0
Best tank in V6: 46.0
Best tank in Mazda: 49.9
Best tank in CBR: 61.3
Best tank in SV: 83.9
Quote:
Originally Posted by MetroMPG
You can lead a fashion-conscious horse to unusual-looking water...
|
Last edited by Daschicken; 10-28-2019 at 01:12 PM..
|
|
|
The Following 2 Users Say Thank You to Daschicken For This Useful Post:
|
|
Today
|
|
|
Other popular topics in this forum...
|
|
|
10-28-2019, 01:25 PM
|
#12 (permalink)
|
Master EcoModder
Join Date: Jan 2014
Location: South Carolina
Posts: 1,659
Thanks: 128
Thanked 764 Times in 461 Posts
|
I run max sidewall on the Volt but it's been so long since I've seen the car I can't remember what that psi is. I'm pretty sure they're Michelin ES though
The other day I couldn't even recall what the rims looked like and had to Google "2018 Volt" to remember
__________________
|
|
|
The Following 2 Users Say Thank You to cowmeat For This Useful Post:
|
|
10-28-2019, 02:07 PM
|
#13 (permalink)
|
Master EcoModder
Join Date: Nov 2010
Location: US
Posts: 1,016
Chief - '06 Pontiac Grand Prix 90 day: 26.7 mpg (US) SF1 - '12 Ford Fiesta S 90 day: 30.95 mpg (US)
Thanks: 195
Thanked 247 Times in 190 Posts
|
Did you really own a Volt or just a (bad?) dream?
|
|
|
The Following User Says Thank You to nemo For This Useful Post:
|
|
10-28-2019, 02:16 PM
|
#14 (permalink)
|
Master EcoModder
Join Date: Jan 2014
Location: South Carolina
Posts: 1,659
Thanks: 128
Thanked 764 Times in 461 Posts
|
It could be two or three more weeks to get it back. I guess it'll be like getting a new car at that point!
__________________
|
|
|
The Following User Says Thank You to cowmeat For This Useful Post:
|
|
10-28-2019, 02:47 PM
|
#15 (permalink)
|
Rat Racer
Join Date: May 2011
Location: Route 16
Posts: 4,150
Thanks: 1,784
Thanked 1,922 Times in 1,246 Posts
|
If my tires are below 40, it feels like I'm driving through soup. But yeah, if I run over a dime, I know it.
__________________
Quote:
Originally Posted by sheepdog44
Transmission type Efficiency
Manual neutral engine off.100% @∞MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%
|
|
|
|
The Following 6 Users Say Thank You to Fat Charlie For This Useful Post:
|
|
10-29-2019, 04:26 AM
|
#16 (permalink)
|
eco....something or other
Join Date: Jul 2009
Location: Colfax, WI
Posts: 724
Thanks: 39
Thanked 67 Times in 50 Posts
|
We used to run 45 psi in the rav4, but with the new "oversized" coopers the sweet spot seems to be around 36-38 psi. They have much stiffer sidewalls and are wider/taller, so they require less pressure to support the same weight. I could run them higher, but the ride would be horrible. It's already a stout ride. New hd coils in the rear and kyb shocks/struts all around. I love it. We have seen ~ 2mpg drop with the new tires, but they travel 6% more distance than the odometer reads, so it's all good. Currently averaging ~24 mpg since installing the new tires at 38 psi, compared to 26 mpg with the old ones at 45psi. The new tires are the very best we could find over the course of about 6 months of research. The rolling resistance on them seems to be about the same from 38-45 psi, so no need to make the ride harder with higher pressures. I have had tires that improved all the way to 60 psi, so these are definitely throwing me a curve ball with great performance at 38 psi. I run 80-100 psi in my truck when hauling, but that is only for carrying capacity/handling. The unloaded sweet spot is around 60/40.
__________________
1991 F-250:
4.9L, Mazda 5 speed, 4.10 10.25" rear
|
|
|
The Following User Says Thank You to IsaacCarlson For This Useful Post:
|
|
10-29-2019, 09:51 AM
|
#17 (permalink)
|
Master EcoModder
Join Date: Feb 2018
Location: VA
Posts: 1,372
Thanks: 324
Thanked 483 Times in 368 Posts
|
My mom runs 50 PSI on her Prius. I ran 68 PSI in my Civic. Currently running 80 PSI in my Insight. Wouldn't recommend over 60 PSI unless you're an extremist.
From what I've read/experienced, tire wear seems to be best at sidewall max, and >70 PSI accelerates wear slightly on tires. Not all cars show a MPG improvement past 60 PSI, so unless yours does don't run them past 60 PSI.
__________________
2013 Toyota Prius C 2 (my car)
2015 Mazda 3 iTouring Hatchback w/ Tech Package (wife's car)
|
|
|
The Following 2 Users Say Thank You to mpg_numbers_guy For This Useful Post:
|
|
10-29-2019, 10:43 AM
|
#18 (permalink)
|
Master EcoModder
Join Date: Dec 2011
Location: New Zealand
Posts: 5,077
Thanks: 2,904
Thanked 2,560 Times in 1,586 Posts
|
Quote:
Originally Posted by Fat Charlie
If my tires are below 40, it feels like I'm driving through soup. But yeah, if I run over a dime, I know it.
|
This.
I tend to check them when my car is feeling wallowy and sluggish, and that’s typically just under 40. I pump them up to 48-50.
|
|
|
The Following User Says Thank You to Ecky For This Useful Post:
|
|
10-29-2019, 07:12 PM
|
#19 (permalink)
|
Master EcoModder
Join Date: Aug 2018
Location: USA
Posts: 455
Thanks: 180
Thanked 101 Times in 77 Posts
|
It seems that the consensus is that 40 PSI is a good minimum to start from. I am surprised to see an even distribution in the poll from 40 PSI.
I expect to see a really big mpg gain from these tires. I currently have 30 x 9.5 bf Goodrich tires at 35 PSI. I will be getting some A/S Michellin tires that are 235/75R15 and I will pump them up to 40 PSI. The nice thing about them is that they are more aerodynamic, 1/4 inch narrower and 29 inches tall
|
|
|
10-30-2019, 12:03 PM
|
#20 (permalink)
|
Banned
Join Date: Aug 2008
Location: Everett WA
Posts: 508
Thanks: 67
Thanked 164 Times in 124 Posts
|
Quote:
Originally Posted by Taylor95
Seems like 40 is a good starting point, and a lot of you guys go a lot higher with no issues. Thanks
|
Here is an old 2008 thread started by CapriRacer about Hyper-inflated tires. The thread ran till 2016 & has lots of info relevant to this thread:
https://ecomodder.com/forum/showthre...ires-2582.html
Last edited by litesong; 10-30-2019 at 01:03 PM..
|
|
|
The Following User Says Thank You to litesong For This Useful Post:
|
|
|