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Thread: Putting 20's on the Marauder

  1. #1
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    Putting 20's on the Marauder

    I have an opportunity to pick up a set of 20" wheels for my car for super cheap but all four are 245/45/20. Will these fit? Will they set off the ABS light?

  2. #2
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    If you have traction control it will throw that off. If no traction control you are good assuming you have the correct offset and what not.
    ~Chris

  3. #3
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    If you have trac control yes ! it will not like same size front and rear, need to mantain that 3% ratio
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    Let see them dubs before you put them on
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  5. #5
    Quote Originally Posted by Blown3.8 View Post
    If you have traction control it will throw that off. If no traction control you are good assuming you have the correct offset and what not.
    Yep. 245/55-18 and 245/45-20 are about the same in diameter the 20s are just a hair smaller but shouldn't throw the speedo off by much if any.

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    TC doesn't care what size the wheels are, it cares about the relationship of front to back sizing. I would think that as long as you maintain the 3% rule you'd be OK. If you end up with tires larger or smaller in circumference your speedo will be off.

  7. #7
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    A car came in on trade with these wheels on it. They got OE's for it and these have been sitting ever since. I want to throw these on for the winter. Pretty good tire tread and not too gawdy. Ill post pics ASAP

  8. #8
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    Quote Originally Posted by MOTOWN MARAUDER View Post
    If you have trac control yes ! it will not like same size front and rear, need to mantain that 3% ratio
    Quote Originally Posted by Mr. Man View Post
    TC doesn't care what size the wheels are, it cares about the relationship of front to back sizing. I would think that as long as you maintain the 3% rule you'd be OK. If you end up with tires larger or smaller in circumference your speedo will be off.
    Where did the 3% come from??

    The stock OEM ratio is 4.8%. The generally accepted range is 2% (on the low side) to 6.0% (on the high side with 255/55/18). Some may have pushed to about 6.6% Max with 265/55/18 without affecting TC.

    OEM fronts -- 759 Revs per Mile.
    OEM rears -- 724 Revs per Mile
    Ratio is 759/724 = 1.048 (or a 4.8% difference in circumference and height).

    GoodYear Eagle F1 DS-G3 is 716 Revs per Mile for a 759/716 ratio of 1.06 (or a 6% difference). I have run the 255/55/18 on the rear with OEM fronts with no TC issues.

    Tire height for OEM front 235/50/18 is 27.25 inches.
    Tire height for OEM rear 245/55/18 is 28.61 inches (or 5% taller than fronts).
    Tire height for 245/45/20 is estimated at 28.68 inches (pretty close to stock rears). So you can probably run those on the rear with stock sized fronts.

    Your TC will not like the 245/45/20 all the way around since it will not see the 4.8% size differential (or 2-6% for the estimated range). To get around this, you will have to turn "off" the TC each and every time you start the car.
    Last edited by Bluerauder; 10-05-2011 at 06:00 PM.
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  9. #9
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    Question

    Quote Originally Posted by Blown3.8 View Post
    If you have traction control it will throw that off. If no traction control you are good assuming you have the correct offset and what not.
    Quote Originally Posted by MOTOWN MARAUDER View Post
    If you have trac control yes ! it will not like same size front and rear, need to mantain that 3% ratio

    If he has traction control couldnt he just turn it off???

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  10. #10
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    Quote Originally Posted by DOOM View Post
    If he has traction control couldnt he just turn it off???
    Yes you can. Just gotta do it everytime you turn the car on. Or figure out how to dissable it automatically.
    ~Chris

  11. #11
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    Wink

    Quote Originally Posted by Blown3.8 View Post
    Yes you can. Just gotta do it everytime you turn the car on. Or figure out how to dissable it automatically.
    First button I hit as soon as I turn the ignition.

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    Quote Originally Posted by GOT5.0 View Post
    Be forewarned dont run the one that says DOOM. cause thats just what youll get!
    Quote Originally Posted by TAKEDOWN View Post
    It's easy to find D00M, just follow his smoke or his trail of trophies!
    Quote Originally Posted by MMBLUE View Post
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  13. #13
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    check me out! Turns out they were 255/45/20 all the way around. We put them on and theres no rubbing while turning from stop to stop. Everything is fine until I hit 45 MPH and it starts modulating the brakes and the TC light starts blinking. The front two tires are pretty worn so ill pick up a front pair in 245/40/20 and call it a day. I think the grey centers go well with the smoked headlamps and window tint. What do you guys think?







  14. #14
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    I think they look really sharp. I like the way they fill out the wells.

    I am partial to the OEM wheels however I like the more subtle look of the wheels you have.

    Please post more pics when you mount the new fronts.
    1/4 Mile Time 11.542 @ 121.19 MPH
    195,000 Miles & 275+ Runs Down the 1,320’
    541.57 RWHP & 476.64 RWTQ on DynoJet
    Tuned by Aric at Injected Engineering
    Vortech Super Charger V-2 “T” Trim, 19 PSI
    8 Rib Belt, Innovators West 10% Overdrive Dampner
    Air to Air Intercooler, Mini-race Bypass
    Ford Cobra Remanufactured Long Block
    Snow Performance Water-Methanol Injection
    Kooks Headers & X Pipe
    GT MAF, 60lb injectors, Dash 8, Aero Rails, Twin Ford GT Pumps,
    Kinsler Fuel Filter, Kenne Bell Boost-A-Pump
    Monroe Sensatrac, Metco Control Arms, Addco Rear Sway Bar
    31 Ford Spline Axles & Detroit Truetrac, 4:10 Ford Racing Gears
    Dynotech MMC Driveshaft
    A-1 Performance Trans, Forced Tailshaft Lube, Carbon Clutches
    3,500 RPM Stall Precision Industries Torque Converter
    B&M Deep Finned Trans Pan
    AeroForce Scan Gauges , Auto Meter Oil, Fuel & Boost Gauges
    Kenny Brown Dead Pedal, 35% Tint, Silver Star Head Lights
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  15. #15
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    Well I have to admit, I'm impressed with the look! I would have to put this in the WIN catagory, nice color, nice tire/rim combo. Goes with the SB paint.


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