Will I loose any power running 33s(305/70) with a 4.6 Liter v8?

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My F-150

• 2001 XLT
• Toreador Red
• Extended Cab
• 4.6 Liter
• v8
• No Muffler (Illegal) NEW
• Dual Exhaust (Y-PIPE)
• 6" Chrome Tips
• Vent Shades
• AVS Blackout Headlight Covers
• Rhino Sprayed-In Bedliner
• Flairside
• 20% Window Tint (Front 2 side windows)(Illegal)
• 11" 7% dark tint band on front (Illegal)
• Bugflector
  Pending
• 305/75/16 BFGoodwrench All Terain Tires (June 2001)
• 3" P.A. Body Lift (June 2001)

THE BEST TRUCKS ARE BUILT FORD TOUGH

 

IMO yes a little. My bud has a set of 305/70/16 with a 4.2 V6 and a manaul and he and I both agreed the 4.6 V8 with an auto would be about the same. I am not sure what wheel your truck came stock with but if I can assume your truck came with 255/70's as mine did then all of my info that I am about to give you will be ok. Now to get technical the 305/70 is 32.81 tall, 12.01 wide ans sidewall is about 8.41 tall, your stock 255's are 30.06 tall, 10.04 wide and have a sidewall of 7.03 tall. A difference of 2.75 tall, and 1.97 wide. So as you see not that much difference. If you wanted your power back you could change gears (this is based on that you have the 3.55 gear rear axle). With a 32.8 tire you would need to go to at least 1 3.73, 3.91, or a 3.92 gear. Prices start at about 125 for parts and labor should be around the 200 mark to install. (Note: you may need to change the front gears as well if your is a 4x4 and then you would run into more cost).

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97 Ford F150 XLT 4x4 4.6L auto, Std cab/Long bed, 3.55LS rear axle, PW,PL, and PM, captian chairs w/arm rests
Sylvania Cool Blue Bulbs, Ford logo hitch and license plate, tinted windows, blackouts front and rear(w/ford logos on front blackouts),ventvisors all around, painted logos on door sills and under hood, 55w backup lights, K&N Filter, custom 4x4 emblems,and much more to come


thomaswright5714@hotmail.com

 

simple as this...gears, your gonna want them unless you like driving slow 4.10s for 33's 4.56 for 35's. INtake and chip helps alot too

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*you can only be jealous for so long, until you realize...your no competiton*

-2001 f150 2wd
-4.6 L
Mods: K&N fipk. Dynomax Raceline Muffler. Superchip Flip Chip. Clears: up front, carbon altezza rear. Indiglos that dont work all the time. Sherwood head. seperates front and rear amped. 4 ultimate tens subs planet audio 1200w amp. random fog lights.
painted bumper. Side Marker Lights.
Suspension: Fabtech Upper Arm, Eibach coils, Bilstein 5100s front and rear, Fabtech 3.5 spindle, Bent lower arms (stock), 3 inch body with steel plates welded into mounts for added support, 36x12.5r16.5 SS TSl's (new gen. 10 ply, not old 8 ply), 3 inch blocks in rear, 4.56 gears, 16.5x9.75 american eagles 589's.

-Not nearly finished-
things to do: custom taction bars, maybe Rcd lower subframe use with existing arms, lightning headlights, jbas, motorized 8 inch screen w/dvd rear facing cam, sunroof.

ps i spelled my name with one i because the normal spelling was pre-registered

 

My buddy is running 305/75/R16 tires with a 4/7 liter v8 and he is fine. So I don't think I have anything to worry about unless I move up to 35s.

------------------
My F-150

• 2001 XLT
• Toreador Red
• Extended Cab
• 4.6 Liter
• v8
• No Muffler (Illegal) NEW
• Dual Exhaust (Y-PIPE)
• 6" Chrome Tips
• Vent Shades
• AVS Blackout Headlight Covers
• Rhino Sprayed-In Bedliner
• Flairside
• 20% Window Tint (Front 2 side windows)(Illegal)
• 11" 7% dark tint band on front (Illegal)
• Bugflector
  Pending
• 295/75/16 BFGoodwrench All Terain Tires (June 2001)
• 3" P.A. Body Lift (June 2001)

THE BEST TRUCKS ARE BUILT FORD TOUGH

 

Steak,
I wouldn't really refer to it as a loss of power. By increasing your tire OD, you change the gear ratio of the truck. You will most likely notice a difference from a stop as the truck will be more sluggish than you are accustomed to.
Just my .02 worth.

[This message has been edited by kemtooler (edited 06-05-2001).]