Search Tires
Q/A Archives
August 2006
| M | T | W | T | F | S | S |
|---|---|---|---|---|---|---|
| « Jul | Sep » | |||||
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 | |||
Related Experts
Sign-up for RSS
Archive for August, 2006
Tire Affecting Fuel Economy
Posted by liz on August 31, 2006
IF YOU PUT BIGGER TIRES ON A KENWORTH, WILL IT AFFECT YOUR SPEEDOMETER AND MAKE YOUR TRUCK GO FASTER? IS THERE AWAY TO HAVE THE TRUCK CHECKED OUT IF IT DOES AFFECT THE SPEEDOMETER? I NEED PROOF IN WRITTING WOULD I BE ABLE TO GET THAT? THANK YOU
Putting larger diameter tires on any vehicle will affect the speedometer and odometer readings. If you know the revolutions per mile for the original tires and the larger tires, you could calculate the speed differance. If they are already on the vehicle, you can also drive down the highway, set the speed at 60 MPH and measure the time it takes to drive between mile markers. One mile at 60 MPH takes 60 seconds. If it is not 60 seconds between mile markers, the differance is the speedometer error.
Fuel Economy Testing
Posted by ZORICA on August 31, 2006
Please provide standards and procedure used to field test tires for fuel consumption performance. Dealing with truck and trailers. Trailers 53′ long and 28′ doubles and triples.
This isn't a questions that can be answered in twenty five words or less. The SAE (Society of Automotive Engineers) has developed procedures for testing various components of vehicles for their affect on fuel economy. The Type III test is generally accepted as the the best test for tires. To find out how to run this type of test, I suggest you visit the following website http://www.sae.org/technical/standards/J1526_198706.
Flat Spots
Posted by James on August 30, 2006
What is the average time that it would take to get flat spots on tires?
I assume you mean the flat spots caused by a vehicle that has not moved for a while. I don't think there is a specific time that it takes to make this happen. Different tires have different belt materials and it is the "flattening" of one spot of the belt that creates the "thump-thump" from "cold" tires. This thumping tends to go away as soon as the tires warm up, usually after 10-15 minutes of running down the highway.
Ttire Size Effect on Odometer
Posted by Dee on August 29, 2006
I just replaced the tires on my Dodge Ram. The old tire size was 285/75R16 and the new tire size is 305/70R16
Will this have a significant effect on the odometer reading, and for that matter, the speedometer?
Changing tire sizes affects the odometer and the speedometer if the tire sizes have different diameters. Since I don't know what specific tires you had on before and after. Looking up the nominal diameters for these sizes in the Tire and Rim Association book indicates that these two tire sizes have nearly the same diameter. In your case, I think the change of tire sizes will have little or no affect on the odometer or speedometer.
Best Tires
Posted by Vinson on August 29, 2006
I have a 1988 GMC Triaxle Dump Truck w/11R22.5 on the third axle and 11R24.5 on the others. What are the best tires for this vehicle ?
The best tires for you depend on if you travel mainly on the highway or if your work takes takes you off highway for a significant amount of time. Off-highway tires offer greater resistance to chipping and chunking. Over-the-road tires will deliver longer treadlife.