Large Tires / MPG / Onboard CPU Question

For me it was definitely more sluggish with the 265/70/17s vs the stock 265/65/17s. Even my wife who doesn't usually pay attention to details noticed that there was a different sound to the engine with the bigger tires. See on even pavement the rpm would be lower than stock. On uphill, it starts out the same way but because I'm trying to keep the speed, it downshifts. I don't think mine has vsc.

 

Red Light Photo tickets are not moving violations in Chicago... just a money generator for the city
Proved fact (In Chicago) that the photo ticketing has cuased more accidents than prevented... people are slamming on brakes and getting rear ended often to avoid the 100$$ fine

 

My stock tires were 245/65/16 and I went to 265/70/17....I have none of the issues you have mentioned, my handling greatly improved and my mpg went up about 1mpg which could have been due to engine break in and changing out the air filter.

I'm wondering what the load ratings are on each set you tried??

 

I think it was an option, but mine does not have VSC

245/65/16 is not a valid tire size according to tire rack

The load rating on the 265/70 according to tire rack is 113 T
The 265/65 is 110 T

The load rating on the OEM Bridgestones is 110 S

Does Load rating higher on the 32's cause a problem?

 

That should have been 245/75...

Hmm, I was thinking more along the lines of 'P' rated, C-D-E rated for load ratings.

Some tires are 'P' passenger tires, some at 'LT' light truck tires which come in C-D-E load ratings. You can buy the same tire brand/model, same size and have a different load rating and weight.
Yes, different load ratings will affect ride quality, mpg, etc.

But there are a lot of people running a heavier/stronger tire than what is needed for this truck and they are not having any of the issues you described.

I went with a P rated 32" all terrain tire to maintain my ride quality and mpg.

I have to think some of your issues might be related to your driving style.

 

I like to take off ramps kind of fast too, but I have tools in the truck so can't go to fast or else the slide and scatter affect takes over.

 

It would happen doing 30mph and our lovely Chicago stop lights can go from green to yellow to red as little as 5 seconds. Since they started photo ticketing, ya gotta stop or it's a $100.00 bucks a pop...got 2 already this year.

?????????????

 

I give up. I ask a question about can the ecu or whatever its called be adjusted, to compensate for larger tires. In other threads people mention that after they are done towing heavy loads, the mpg goes up cause the ecu or whatever its called compensates for it and takes awhile to re adjust.
For those that offered constuctive advise, I want to thank you for your input. I do believe my abs may be out of sink, but with the stock size tire, they do not activate unless called for.. maybe the larger tire put it over the edge for however it is set.
For those that wanna slam my driving habits... Take your typing finger and put it where the sun don't shine.
I already posted in this thread that IN CHICAGO - RED LIGHT PHOTO TICKETING is NOT a MOVING VIOLATION.
Granted if your not from around here, you would not understand chicago loop driving forced habits. if your not aggressive, you die. or take a cab cause your to chicken shit to drive in it. I have to, I work in this mess and my hours prevent me from taking the train. When I'm in the suburbs, yea, I like to go fast when I can ... so what?
If you never have drivin fast or took a corner to quick... good for you. You can have 2 helping of cake tonight for being such a good role model.

Sorry for rambling. if you have some input that could help, please reply. if you want to comment on something you know nothing about... shut the fuck up and go to another thread.