1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

What affects, if any, could result when increasing tire size?

Discussion in '4 Cylinder' started by tacoma02, Apr 26, 2010.

  1. Apr 26, 2010 at 6:21 PM
    #1
    tacoma02

    tacoma02 [OP] Well-Known Member

    Joined:
    Mar 26, 2010
    Member:
    #33996
    Messages:
    101
    Gender:
    Male
    Vehicle:
    2002 Toyota Tacoma 2.7L 4 Cylinder
    Thrush Welded Muffler Westin safari light bar
    I currently have 235/75/R15 on my truck and its time to get some new tires but i wanted i little larger size, so im thinking on getting 265/75/R15. I did the tire calculator and im am just wondering if im going to feel quite a bit of power loss. i also just want to know if the larger size is worth it, looks and performance wise. - Thanks
     
  2. Apr 26, 2010 at 10:28 PM
    #2
    neslerrah

    neslerrah Taco lovin'

    Joined:
    Feb 18, 2008
    Member:
    #4803
    Messages:
    6,743
    Gender:
    Male
    First Name:
    Harrelsen
    Tucson
    Vehicle:
    5 lug BEAST!
    Secondary air filter removed, elbow mod, BFG T/A KO (31x10.5R15), 15" American Racing Mojaves, BHLM, Dome Light MOD (Blue), Pioneer headunit, Sockmonkey 'TACOMA' Decals, Readylift 5-lug SST, Rear Shocks - Bilstein TRD, Dynomax Super Turbo #17748, DDM Slim Ballast HID Kit H4 Hi/Lo -35W 6000K in headlights, Apexcone Raptor HID Kit H3 - 35W 6000K in Hella 500s, aFe CAI #51-10762, WeatherTech Floorliner, 200W Smart AC Inverter
    IMO larger tires are definitely worth it. You might notice some power loss and decrease in MPG. What tires do you plan on running?
     
  3. Apr 26, 2010 at 10:46 PM
    #3
    mountainwolfpup

    mountainwolfpup Ford Guy (Formerly known as a Toyota Guy)

    Joined:
    Jan 1, 2009
    Member:
    #12116
    Messages:
    980
    Gender:
    Male
    Vancouver, WA
    Vehicle:
    2015 Ford F150 Lariat FX4 3.5l Eco
    First month of ownership... This month I'm removing front air dam, and also Rhino lining the bed.
    OK, so new bigger tires look great. No argument there. But like a boob job there are some things to consider:

    A 235/75 is about a 28" tall tire and a 265/75 is about 31" tall. That is a difference that you will notice in several ways...

    The Good-

    - The 265s will give you additional ground clearance about equal to a 1-2" lift.

    - The truck will 'look' better, if you like that 4x4 look (hey, who doesn't- right)

    The Bad-

    - The 265s are wider so there could be some rubbing in the front depending on your wheel offset? Might have to change rims, or get offset spacers, or do some trimming?

    - With 265s your speedometer will be off. Be careful not to get a ticket, the truck will travel faster then the spedo is indicating, maybe by as much as 10mph at about 60? Just a rough guess.

    - The larger 265s will likely weigh more and are definitely wider so you will have a noticeable reduction in fuel economy. Maybe 1-2mpg? Just a rough guess.

    The Ugly-

    - Gearing will be different. Taking off from a dead stop will require more rpms. The truck may struggle getting the tires turning, engine may even stall on steep hills without a running start?

    - Road noise and cabin noise will certainly increase.

    - Steering and overall handling at highway speeds may be adversely affected.
     
  4. Apr 27, 2010 at 4:39 AM
    #4
    blackwatertaco

    blackwatertaco If you ain't stuck, You ain't tryin hard enough.

    Joined:
    Jan 11, 2010
    Member:
    #29134
    Messages:
    1,986
    Gender:
    Male
    First Name:
    Jay
    Alvin/Pasadena, Tx
    Vehicle:
    08 taco, 4x4 2.7 5spd.
    One fucked up diff. breather mod, 265/75/16 Destiny Dakota M/T Black gulf states rims BHLM Magnaflow 14" muffler with cut off tail pipe. 10" pioneer slim truck sub with JBL 600W amp. PROJECT BLACK OUT
    I have 265 mud tires. Im truck dosen't experiance any rubbing at all, My power has been slowed down quite a bit, Fuel mileage, About 1 MPG and my speedo is about 2mph faster.

    All in all, Worth it.
     
  5. Apr 27, 2010 at 9:09 AM
    #5
    Cappy Cap

    Cappy Cap Well-Known Member

    Joined:
    Oct 13, 2009
    Member:
    #24268
    Messages:
    145
    Gender:
    Male
    Boston
    Vehicle:
    08 Reg. Cab
    K & N Intake, Alpine S-10 Shallow Mount Sub, Alpine CDA-9884 H/U, Alpine Type-R Components, Alpine Amp, 3.73 rear end, Welded on Muffler, Bug Deflector, Rain Guards, LCE Short Shifter,
    when i did my tires i am now running what you have the 235/75/15 and i noticed a big diff. so i regeared and now all seems to be cool, i plan on doin the 31's soon so ill have to regear again. I feel it puts a stress on the engine when u go larger esp. in a 4 banger and i dont know if its bad for the truck but like mountainwolfpup there the good bad and ugly. I would says its super worth it for functionality and looks. After gearing it rolls around nicely but the speedometer and odometer will be f*ed lol that would be the long term problem. Gearing will get you back some mpg's too. Good luck
     
  6. Apr 27, 2010 at 9:10 AM
    #6
    steve o 77

    steve o 77 braaap

    Joined:
    Nov 29, 2009
    Member:
    #26726
    Messages:
    19,968
    Gender:
    Male
    First Name:
    Steven
    In a corn field, OH
    Vehicle:
    1990 Chevy Siveraydo
    245k+ miles, rust, working AC, bald eagles
  7. Apr 27, 2010 at 3:12 PM
    #7
    NakedTacoma

    NakedTacoma Well-Known Member

    Joined:
    Feb 3, 2010
    Member:
    #30667
    Messages:
    422
    Gender:
    Male
    West Covina
    Mid travel front Long travel rear
    tire rubbing will depend on the TRUCK! prerunner vs non prerunner...

    Fig out out big u want to go and we can tell u the pros and cons


    for example.... ME--- 33x12.5x15 on a REG cab NON prerunner
    -had to regear to 4.10
    -had to pound in the weld seems in the tire well
    -speedo off
    -sluggish
    PRO
    -fills out my Glassfenders(lol)
    -Better traction and track for off roading
     
  8. Apr 28, 2010 at 6:10 AM
    #8
    Tacoyota

    Tacoyota senile member

    Joined:
    Jul 22, 2009
    Member:
    #20028
    Messages:
    2,960
    Gender:
    Male
    North of Cali, South of Canada
    Vehicle:
    08 4wd
    4.56 gears, rear trutrac,DT header, 235/85r16 Duratracs, 2nd filter pulled, inter.wipers, Cruise control, Factory alum. whls/winter tires(2nd set), Afe pro Dry-S , Dumbo eared flaps cut down.
    One aspect not mentioned is the stress added that rotataional weight and larger diameter tires add to braking. A 2"jump in tire size will be minimal though and not a real problem?
     
  9. Apr 28, 2010 at 3:18 PM
    #9
    toycar18

    toycar18 Well-Known Member

    Joined:
    Apr 24, 2010
    Member:
    #35896
    Messages:
    225
    Gender:
    Male
    Colorado
    Vehicle:
    98 Reg Cab 2.7L
    OME Suspension, BFG 33x10.50 AT, Light Racing Upper Control Arms, Rear ARB Air Locker, LCE Header, Dynomax Super Turbo Muffler, K&N Intake
    I have a 98 2.7 L 4x4.

    It originally came stock with 29" tires and I replaced them with 31" tires. I have been driving it with 31" Tires for about 8 years now.

    It all depends on what gears you have in your truck.

    I have 3.58 Gears which really is way too high of a gear. It should be 4.10. My gear code is BO2A. To find out what gears your truck has visit http://www.brian894x4.com/Gearratiosanddiffs.html

    The only thing that sucks about my truck is highway driving. I often have to run my truck in 4th gear on the interstate at 80. Sometimes I can run in 5th but mostly in 4th.

    I could never go back to the smaller tires. The larger tires are better off road and most importantly they look way better.

    So if you have 3.58 like me I would consider getting new gears. I am planning on getting new gears soon... finally - should of done it years ago.

    AS far as the speedometer goes it didn't make much of a difference. Everytime I have gotten a speeding ticket (10 times in my tacoma) the cops got me at exactly what my speedometer showed.
     
  10. May 3, 2010 at 3:41 PM
    #10
    sjdm4211

    sjdm4211 Member

    Joined:
    May 21, 2008
    Member:
    #6781
    Messages:
    16
    Tennessee
    Vehicle:
    Toyota Tacoma 2WD 2.7L
    I just replaced my worn out 215/70 R15 car tires on my 06 2 wheel drive Tacoma with some Goodyear Wrangler 235/75 R15 truck tires. I wasn't looking for a larger tire but it was the only way to get a tire with some real tread.

    I haven't had them on long enough to notice any loss in MPG but I haven't expiernced any loss in power. I checked and there is no rubbing. I am definitely happy with the increased traction and I have to say the truck looks alot better having the fenders filled up a little bit.

    Joseph
     
  11. May 6, 2010 at 1:04 AM
    #11
    forgedgreen

    forgedgreen Member

    Joined:
    Apr 28, 2010
    Member:
    #36193
    Messages:
    15
    Gender:
    Male
    can u post some pics, not too sure which size would be good, but if the 235's look good then wouldnt have to deal with changing rims or gears.
     
  12. May 10, 2010 at 7:00 AM
    #12
    strongwxnc

    strongwxnc Well-Known Member

    Joined:
    Jan 23, 2009
    Member:
    #12888
    Messages:
    87
    Gender:
    Male
    Bostic, NC
    Vehicle:
    2002 Xtra Cab SR5 2.7L 4WD
    Bushwacker bed rail caps
    I have 265/70R16 General GabbarAT2 on mine. Had a set of crappy Michelin X (CRAPPY) before these. They were the same size. I love the look of the tires and as stated before, adds a nice little lift. I do not know if I could use the smaller tires.
     
  13. May 10, 2010 at 1:48 PM
    #13
    DGXR

    DGXR Well-Known Member

    Joined:
    Sep 1, 2009
    Member:
    #22094
    Messages:
    1,137
    Gender:
    Male
    First Name:
    Friend
    Sacramento, CA
    Vehicle:
    2006 2.7L SR5 2-wheel drive
    aFe Pro Dry air filter, magnetic oil drain plug, synthetic seat covers, steering wheel cover
    This is great info... I was planning to go larger when my stock 215/70R15s wear out and was already thinking that 235/75s would be best. They would not be large enough to cause a problem with braking or fuel economy considering where/how I drive, but they are large enough to fill the fenders better and to more/less fix the factory speedo offset. Thanks TW!
     
  14. Feb 9, 2011 at 5:14 PM
    #14
    frog13

    frog13 Well-Known Member

    Joined:
    Jan 26, 2011
    Member:
    #49990
    Messages:
    140
    Gender:
    Male

    Consider your transmission and your speedometer.
     
  15. Feb 10, 2011 at 12:27 AM
    #15
    2007 tacoma

    2007 tacoma Well-Known Member

    Joined:
    Feb 4, 2011
    Member:
    #50542
    Messages:
    238
    Gender:
    Male
    First Name:
    LEEEEEEROOOYYY JENKINS!
    Vehicle:
    2007 Access Cab
    16" Alloys, K&N intake, Class III Hitch, US Truck Cap Rack, Carpeted Bed Mat, WeatherTechs, SeatSaver covers, Many more in the works
    I've been doing a lot of research into this and will continue to do so. This is an investment for me as well as an improvement to my truck.

    When I got my truck it had undersized Michelin's on it, but they are nice and expensive tires so I'm riding on them and may be for a bit.

    My research has reminded me there are many variables in this decision.

    The good news is if you can find a tire that has less rolling resistance than your current and has less rotational mass (i.e. weight for this post), you'll gain mileage... then go large as your overall gear ratio will increase and you're more efficient.

    Right now my top choice is Michelin Latitude Tour:

    http://www.michelinman.com/tire-selector/name/latitude-tour-tires

    It has a fuel efficiency of 10 for a SUV tire. (though what is the 10 a scale of?) "Most fuel-efficient tire in its class" caught my eye as well as the P265/75R16 size being green rated.

    I don't work for Michelin. I'm just understanding now that I'm paying attention to tires (instead of what's on sale) that the selection is very significant.

    More research to go before I shell out ~$800 or so for tires.

    Regarding "power", you'd need to provide more information as to what you're doing to need the power. It could be good, could be bad.
     
To Top