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Thread: 295/45/18 too big for the front?

  1. #1
    Dreamer j33ptj's Avatar
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    295/45/18 too big for the front?

    Would those tyres/wheel size be too big for the front (with 28/12/18 MT Sportsman tyres)?

    Just curious...

    RJ
    Last edited by j33ptj; 06-25-2020 at 08:55 AM.

  2. #2

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    RoadRacer's Avatar
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    Too big in what way? Are you using fenders? Do you have power steering? Looks?

    I have no power and 275 fronts and find them just fine. I see many '35 trucks (and some 33's) have much wider, like 335!
    James

    FFR33 #997 (Gen1 chassis, Gen2 body), license plate DRIVE IT says it all! build thread
    My build: 350SBC, TKO600, hardtop, no fenders/hood, 32 grill, 3 link, sway bars, 355/30r19
    Previous cars: GTD40, Cobra, tubeframe 55 Chevy, 66 Nova, 56 F100

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    Dreamer j33ptj's Avatar
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    I would use power steering and bike fenders...

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    Senior Member FF33rod's Avatar
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    The FFR front bike fenders will not fit 295s without major mods (i.e. splitting down the middle and widening significantly)

    Here's the FFR fenders with 245s (18) on the front. 255s can probably squeak in with more trimming.
    Attached Images Attached Images
    Last edited by FF33rod; 06-25-2020 at 12:22 PM.
    Gen 1 '33 Hot Rod #1104
    347 with Holley Sniper & Hyperspark, TKO600, IRS, 245/40R18 & 315/30R18, DRL, Digital Guard Dog keyless Ignition

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    Here is a tire / wheel size calculator that I found useful: http://www.rimsntires.com/specspro.jsp

    FWIW, I have 245/45-18 fronts and they fill up the full fenders pretty well.

    Keith HR #894

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    Seasoned Citizen NAZ's Avatar
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    255/35ZR18 under bike fenders and no power steering is no problem.

    Dart Little M 406" SBC 800 HP N/A & 1,100 HP on nitrous, 2-spd Powerglide with trans brake, 6,000 RPM stall converter, narrowed Moser 88 3.90:1 spool with 35-spline gun-drilled axles & Torino bearings, custom parallel four-link, custom tube chassis & roll cage NHRA certified for 8.5-sec (only two FFR Hot Rods have this cert).

    33 Hot Rod Super Pro Drag Racer Build: 33 HR NHRA Cert Roll Cage Build

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  10. #7

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    If you wanted pic of 275 fronts (GT500 wheels/tires) here's an old photo that shows mine well:

    32grill-front.jpeg
    James

    FFR33 #997 (Gen1 chassis, Gen2 body), license plate DRIVE IT says it all! build thread
    My build: 350SBC, TKO600, hardtop, no fenders/hood, 32 grill, 3 link, sway bars, 355/30r19
    Previous cars: GTD40, Cobra, tubeframe 55 Chevy, 66 Nova, 56 F100

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    Dreamer j33ptj's Avatar
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    Thanks all for the input, maybe need to put skinny tyres in the front!!

    Rear: 28x12R18 front 27x8R17... would look more like a drag-racer than....

    I wish there was some software that could assist in visualising these things!!

    Robert

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    I'm running 305/35-20 in the rear.

    The calculator I linked above has a graphic that rescales when you when you enter new data, and it shows 2 different tires/wheels in one screen so you can get an idea of the relative sizes. Also, I found these wheel visualizers helpful: http://www.billetspecialties.com/sto...el-visualizer/ or one at http://www.newstalgiawheel.com with more brands.

    HTH, Keith HR #894

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    Dreamer j33ptj's Avatar
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    I used the http://www.rimsntires.com/specspro.jsp already a few times for other car wheels. I actually meant a design package of sorts where you can play with the hotrod 33 for different designs/wheels/paint etc!!

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    There is.. http://www.hokdigitalpaintbooth.com/

    Here's some I did. It asks for wheels/tire size as one of many parameters.

    front-q.jpg rear-q.jpg

    I don't want to oversell it though - it's not perfect. It's pretty tricky to setup/use, couldn't stripe over the body as you'd expect, and just runs on windows. Using vmware fusion on my mac won't work, you have to use Bootcamp, which is a pain. I remember tire sizes were odd - you couldn't just say 335/35 for example.
    Last edited by RoadRacer; 06-26-2020 at 08:05 AM.
    James

    FFR33 #997 (Gen1 chassis, Gen2 body), license plate DRIVE IT says it all! build thread
    My build: 350SBC, TKO600, hardtop, no fenders/hood, 32 grill, 3 link, sway bars, 355/30r19
    Previous cars: GTD40, Cobra, tubeframe 55 Chevy, 66 Nova, 56 F100

  16. #12
    Senior Member HVACMAN's Avatar
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    Here is what I went with. 26x8x18 front and 29x18x20 rear.IMG_0290.JPGIMG_0291.JPG
    33 Hot Rod (Gen 1) Stage 1 delivered on 4/27/2017, Stage 2 delivered on 9/21/2018
    LS3 495hp/480 lb. ft., 4L70E, Electric PS, Classic Auto Air, Lokar electronic sport shifter, 13 inch Wilwood front and 11.68 Cobra rear brakes, Ford 8.8 w 3.73 w 4 link, Billet Specialty Legend Series MAG wheels and Mickey Thompson
    Sportsman S/R 26x8x18 front and 29x18x20 rear tires.

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  18. #13
    Dreamer j33ptj's Avatar
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    Quote Originally Posted by HVACMAN View Post
    Here is what I went with. 26x8x18 front and 29x18x20 rear.IMG_0290.JPGIMG_0291.JPG
    I live in Nederland too!! But on the other side of the pond! hahahaha!

    What wheel size are you running at the front, width?

    thnx
    Robert

  19. #14
    Dreamer j33ptj's Avatar
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    So just realised that especailly for the rear you need to know how wide the body is and the IRS axle, anyone knows that?

    this would determine the spacing of the wheel...

    thanks
    Robert

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    Senior Member sethmark's Avatar
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    I’m getting ready to put on nascar tires...... because they’re cooler than not.
    33 Hot Rod #1133. LS/TKO600
    Delivered 6-17-19. Started work 7-3-19. First start 9-6-19. First drive 9-24-19
    Titled 2-28-20

    MkI.IV 2643k

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  22. #16
    Senior Member FF33rod's Avatar
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    Quote Originally Posted by j33ptj View Post
    So just realised that especailly for the rear you need to know how wide the body is and the IRS axle, anyone knows that?

    this would determine the spacing of the wheel...

    thanks
    Robert
    The manual has a section on max size tires including backspace, it is accurate and applicable for all 3 FFR supplied rear ends including IRS. I have 315/30R18 with 6" backspace with fenders and just clears body so 6.25 would not work for example
    Steve
    Gen 1 '33 Hot Rod #1104
    347 with Holley Sniper & Hyperspark, TKO600, IRS, 245/40R18 & 315/30R18, DRL, Digital Guard Dog keyless Ignition

  23. #17

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    Quote Originally Posted by j33ptj View Post
    So just realised that especailly for the rear you need to know how wide the body is and the IRS axle, anyone knows that?

    this would determine the spacing of the wheel...

    thanks
    Robert
    I have 20" x 10" wheels with a 5" backspace on a Gen 1 '33 with the 2015 IRS. I don't have the measurements handy, but I have a minimum 1" clearance between the body and tire sidewall. The FFR wheel size recommendations for the IRS weren't in the manual when I bought mine, so I had to wing it. HTH, Keith

  24. #18
    Senior Member FF33rod's Avatar
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    The gen1 manual provided specs for max size wheels/tires with and without fenders. There wasn't any info about which rear ends were applicable at all. Called Tony and he explained that all 3 rears that they sell are the same width so the size recommendations are independent of which rear.
    Gen 1 '33 Hot Rod #1104
    347 with Holley Sniper & Hyperspark, TKO600, IRS, 245/40R18 & 315/30R18, DRL, Digital Guard Dog keyless Ignition

  25. #19
    Dreamer j33ptj's Avatar
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    the 3G manual hasn't been updated from the previous versions, Only shows the rear solid axle:

    Information is separated into groups of wheels/tires used on Hot Rods without fenders and those with
    fenders, and it is also important to note that this information is based on using a standard width
    (59.25”) Ford 8.8” solid axle.

    and information on the wheels with fenders:

    Front maximum wheel width and Backspacing: 9.00” with 5.50” Backspace
    Front maximum tire width: 255mm
    Rear maximum wheel width and Backspacing: 11.00” with 6.00” Backspace
    Rear maximum tire width: 315mm
    Front / Rear maximum tire diameter: 25.7”


    But it would be good to have to body width and axle (IRS) width confirmed... Fenders can be easily modified to fit, is my impression...
    Last edited by j33ptj; 07-02-2020 at 03:14 AM.

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