Anyone tried running 33" tires with the V6 and a stick? I really want to lift my '97 reg cab 4by, but I am worried about a total loss of performance.

Thanks much.

 

I have 33's on mine. I also have 4.10 gears. Before the gear change there was a big drop in performance. With the gears I have more performance then before. My advice, if you get 33's get gears with it.

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2000 F-150 2wd sport
4.2 V6 engine
auto transmission
Jacobs Ignition
JBA Headers
K&N
Superchip
Throttle body spacer
cat back exaust
Custom Seat Covers
Dash Mat
Ford Floor Mats
Cd player
pioneer Speakers
Rockford Amp
Truck Box
Rhino Liner
Grill Gaurd
Nerf Bars
Bushwacker fender flares
custom graphics
tail light covers
Vent Visors
Driving Lights
tinted windows
Fabtech spindle lift
3 inch body lift
lift lips
33/12.5/17 Procomp A/T
4.10 gears(had 3.55)

[This message has been edited by TucsonTruck (edited 03-19-2001).]

 

There was a drop in performance with the 33's. But its not too bad. I can drive around everywhere fine, and if you get on the highway with 3.55 and 33's you got gnarly gas mileage. The power stays easily in the drivable range. And with gears being 600 bucks .... of course I'd do it in a second if given an 600 bucks, but other mods first.

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Things to come: coil spacers, 4.10 gears, Grill
ilmagill@aol.com For Pictures :
www.geocities.com/ilmagill

 

I don't know what everyone else is talking about. I can hardly notice the difference. If there were any difference, it would be well worth having these tires. btw, There is no need to lift your 4x4 if all you want is 285's. If fact, you can run 305's with no lift and no rubbing. If you get a lift, go with 35's. But in that case, you would need new gears.

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2000 Silver F-150 XL Sport
Reg. Cab, Reg. Bed, 4.2L V6, 5-speed, 4x2

mods:
Tailgate lock, Generic bedliner
285/75r16 BFG AT ko (33.1x11.4)
Sony CD player, Blaunpunkt 5.25" speakers
Crimeguard alarm, Power locks
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Never let your schooling interfere with your education --Mark Twain

 

hey, i have 6 inches of lift and 305/70-16 on my V6 2by. the power loss is noticable, but i have never been in a situation where i needed more. you should be fine.

***JasoN***

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Oxford White 1998 F-150 STX, reg. cab, flareside, 4.2, auto, 3.55s, tint, Prestige alarm, Bel radar detector, Pioneer CD player, 4 Polk 5x7's, Stull billet grille and bumper insert, Flowmaster exhaust, K&N airfilter, V-Tech Tailight Covers(painted to match truck), removed factory mud flaps, Clear Corner Lenses, DJM shackles(removed for lift), Billet Oval Mirror, 3in. Body Lift, lift lips, chrome tow hooks, Pilot driving lights mounted behind billet bumper insert, 16x8 Ultra Wheels, 305/70/16 Goodyear AT/S, Custom door ding from some a$$hole, Fabtech Spindle Lift, 2in. blocks out back FUTURE MODS: rancho rsx shocks, 315/75-16 yokohama geolander mt's, and still working on getting that dang door ding fixed . . . FIGHTIN TEXAS AGGIE C/O '03

 

I had a 97 F150 with the 4.2 and drove it for two years. I know dang well there would be a power loss with 33's, especially if I can fill one now with a 5.4. By the way Roland, 285's are 32.8, not 33.1.

 

The power loss is pretty minimal. My dad use to have 33's on a bronco 2 2.8 and it still had some get up and even pulled a boat. The power loss is no big deal unless you plan on using a lifted truck for nastruck. Do it and you;ll be happy.

 

By my calculations, it is 33.1, 285/25= 11.4, 11.4*.75 = 8.55, 8.55*2 = 17.1, 17.1+16 = 33.1

My math checks out, how did you calculate 32.8?

BTW, BFG list the diameter as 32.9", So I don't think that either of us are correct. But, manufacture's #s differ slightly anyway.

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2000 Silver F-150 XL Sport
Reg. Cab, Reg. Bed, 4.2L V6, 5-speed, 4x2

mods:
Tailgate lock, Generic bedliner
285/75r16 BFG AT ko (33.1x11.4)
Sony CD player, Blaunpunkt 5.25" speakers
Crimeguard alarm, Power locks
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Never let your schooling interfere with your education --Mark Twain

[This message has been edited by r0land (edited 03-21-2001).]

 

I think if 3/10 of an inch are that big of an issue the truck should be lifted or smaller tires used. Good math skills and knowledge though. Bottom line:285/75/16=33.

 

Well I was looking at the BFG thing at its 32.8 and ive done it numerous times mathematically and its 32.8.

Just do unit conversions..... you had them wrong you divide by 25.4 since there are 2.54 cm to an inch...and thats exact by the way.

285mm -> (28.5 cm) / (2.54 cm/in) * (.75) + 16 which gives us the magic number of 32.8. The width on the BFG's is 11.22 with the correct conversion between millimeters and inches.

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Things to come: coil spacers, 4.10 gears, Grill
ilmagill@aol.com For Pictures :
www.geocities.com/ilmagill

 

Yep ilmagill, 32.8.

 

I have a 2K 2WD with the 4.2 and a 5spd. I am running 315s which are pretty much 35s. It looks great but now I am comparing prices on 4:10 rear end swap. Its just too much for that little engine to pull but once I get this done, it'll be awesome. Oh, I'm also getting approx. 12-14 on the mpg. Hoping that goes up.

Carl

 

Hi,
I was just quoted 899 dollars for swapping out my rear end for a 4.10. Does that sound fair and would you recommend that an off road shop do it or any trust worthy tranny shop? Is there anything particular that an offroad shop would look for or do differently because I imagine they will be more pricey. Out of the mods you have listed, what (besides gears) would you say gave the best performance gain?

Thanks
Carl

 

850 is a rip...a local gearing shop is who I'd go to. My local gearing shop quoted about 550...4wheel parts 600. But expect to pay 500-600 for it.