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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-26-2012, 09:55 PM   #11 (permalink)
Master EcoModder
 
mcrews's Avatar
 
Join Date: Oct 2009
Location: Texas
Posts: 3,523

The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

blackie - '14 nissan altima sv
Thanks: 2,203
Thanked 663 Times in 478 Posts
Kinda hard to argue with 10,XXX,XXX tires being sold With tread........

But hey, let's start saying how everybody needs to be driving on donut spares.....

__________________
MetroMPG: "Get the MPG gauge - it turns driving into a fuel & money saving game."

ECO MODS PERFORMED:
First: ScangaugeII
http://ecomodder.com/forum/showthrea...eii-23306.html

Second: Grille Block
http://ecomodder.com/forum/showthrea...e-10912-2.html

Third: Full underbelly pan
http://ecomodder.com/forum/showthrea...q45-11402.html

Fourth: rear skirts and 30.4mpg on trip!
http://ecomodder.com/forum/showthrea...tml#post247938
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-26-2012, 10:00 PM   #12 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
Quote:
Originally Posted by mcrews View Post
Kinda hard to argue with 10,XXX,XXX tires being sold With tread........

But hey, let's start saying how everybody needs to be driving on donut spares.....
...or Police Cars driving on spare donuts?
  Reply With Quote
The Following User Says Thank You to gone-ot For This Useful Post:
mcrews (09-26-2012)
Old 09-26-2012, 10:13 PM   #13 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,513

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 60.16 mpg (US)
Thanks: 4,058
Thanked 6,957 Times in 3,602 Posts
Quote:
Originally Posted by redpoint5 View Post
Here is what I found from Tirerack:
Thanks for the additional info!
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 09-26-2012, 11:11 PM   #14 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,390

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.68 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 4,187
Thanked 4,378 Times in 3,353 Posts
Quote:
Originally Posted by ecomodded View Post
Braking distance is severely affected by tread wear, a worn tire takes 50 to a 100% longer distance to come to a panic stop then a new tire.
I'll take the braking ability of a new tire over the RR of a worn tire anytime.
I'm having to remove my foot from my mouth after looking into your claim and finding evidence to support it.

The link shows a test in which a passenger car and truck took nearly twice as long to stop from 70mph with worn out tires when compared to new.

Quote:
Originally Posted by mcrews View Post
Kinda hard to argue with 10,XXX,XXX tires being sold With tread........

But hey, let's start saying how everybody needs to be driving on donut spares.....
That brings us to Mcrews post showing that tread is clearly thought to be important. Even if one lived in Death Valley, having tread just for the possibility of encountering infrequent rain more than justifies the marginal loss in performance and wear the other 99.9% of the time.

Tread is often unnecessary, but essential to safety some of the time.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!

Last edited by redpoint5; 09-26-2012 at 11:16 PM..
  Reply With Quote
The Following 2 Users Say Thank You to redpoint5 For This Useful Post:
maczo (09-27-2012), MetroMPG (09-27-2012)
Old 09-26-2012, 11:27 PM   #15 (permalink)
Master EcoModder
 
mcrews's Avatar
 
Join Date: Oct 2009
Location: Texas
Posts: 3,523

The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

blackie - '14 nissan altima sv
Thanks: 2,203
Thanked 663 Times in 478 Posts
I have 269,000 miles on my 2002 Q45 Sport.
I replace the Kuhmos every 40-44k miles.
From personal experience alone, I can tell you that worn tires suck.
I'm just not going to trade .001 better mpg for the risk.
Pump up to 45 psi and use nitrogen. And run tires w/ tread.

ANd buy a scangauge.
__________________
MetroMPG: "Get the MPG gauge - it turns driving into a fuel & money saving game."

ECO MODS PERFORMED:
First: ScangaugeII
http://ecomodder.com/forum/showthrea...eii-23306.html

Second: Grille Block
http://ecomodder.com/forum/showthrea...e-10912-2.html

Third: Full underbelly pan
http://ecomodder.com/forum/showthrea...q45-11402.html

Fourth: rear skirts and 30.4mpg on trip!
http://ecomodder.com/forum/showthrea...tml#post247938
  Reply With Quote
Old 09-26-2012, 11:46 PM   #16 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,390

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.68 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 4,187
Thanked 4,378 Times in 3,353 Posts
Quote:
Originally Posted by mcrews View Post
I'm just not going to trade .001 better mpg for the risk.
More like 0.7mpg for your vehicle, but I get your point
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 09-27-2012, 10:04 AM   #17 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,513

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 60.16 mpg (US)
Thanks: 4,058
Thanked 6,957 Times in 3,602 Posts
Nitrogen is an unnecessary expense if you check your tire pressure regularly.

---

It's worth emphasizing that the stopping distance comparison that Tire Rack did was in wet conditions only. They didn't test in the dry. They also artificially "aged" the shaved tires by baking them in an industrial oven for several weeks.

So the idea that dry traction may be unaffected (or even improved) by reduced tread depth still holds.

Quote:
Tread is often unnecessary, but essential to safety some of the time.
No argument there. Just clarifying their test.
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 09-27-2012, 10:27 AM   #18 (permalink)
Master EcoModder
 
Join Date: Jan 2011
Location: na
Posts: 1,025
Thanks: 277
Thanked 218 Times in 185 Posts
Tire Test Results : What Honest Abe Doesn't Tell You About Minimum Tread Depths: Part 2 - Dry Braking

Part 2 is dry testing, but only the car, brand new vs 4/32 & 2/32, all stopped within 1.5 feet of each other 50 mph to 0. And worn tires corner better, which kind of tells me the cooking in the oven didn't affect the rubber much.

So during the summer, newer tires on front, wear out old on rear, front's do most of the braking, wet or dry and I'm not cornering that fast, at least when wet.

Last edited by roosterk0031; 09-27-2012 at 10:35 AM..
  Reply With Quote
The Following User Says Thank You to roosterk0031 For This Useful Post:
MetroMPG (09-27-2012)
Old 09-27-2012, 11:29 AM   #19 (permalink)
Drive less save more
 
ecomodded's Avatar
 
Join Date: Jul 2011
Location: Vancouver Island, Canada
Posts: 1,189

Dusty - '98 VOLKSWAGEN Beetle TDI
TEAM VW AUDI Group
90 day: 60.42 mpg (US)
Thanks: 134
Thanked 162 Times in 135 Posts
I remember seeing a chart of the stopping comparison many years ago and it stuck, I cannot find that particular article or chart but did come across the video companion to the link that " redpoint5" has posted, from the tire rack.


I am actually surprised that a worn tire performs better on dry roads. I always assumed the rubber compound in road tires would not grip as the race slicks do.
__________________
Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
__________________



  Reply With Quote
The Following User Says Thank You to ecomodded For This Useful Post:
MetroMPG (09-27-2012)
Old 09-27-2012, 12:07 PM   #20 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
...which is *why* drag slicks are, well, slick = no tread, just ALL surface contacting rubber.

  Reply With Quote
Reply  Post New Thread


Tags
old vs new tyres, tyre aerodynamics, tyre crr

Thread Tools




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