Pirelli Zero 285/40 R20

Discussion in 'SRT Hellcat Wheels and Tires' started by BKuz, Nov 9, 2015.

  1. BKuz

    BKuz Retired American Fighting Man

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    I have looked on multiple tire vs rim charts and the largest tire that can safely be put on a stock Hellcat rim is 285/40 R20. Why did Dodge only put 9.5" rims on the back of the Hellcat? Every other muscle car has 315 or 325 tires on the rear or larger with 10.5" to 11" rims.

    BKuz
     
  2. Johnny Popcorn

    Johnny Popcorn Hellcat Member

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    Pretty sure that a 295/40/20 will fit. I went to tire rack and it appeared that a 295 would fit. That 295 came up when I did the search for other tires. Right now, my plan is to put the 295's on. Where did the 285 come from?
     
  3. hellcat1

    hellcat1 Gold Member

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    The reason they went with 275 40 20 at all four corners is so owners can rotate there tires,, and not having any rubbing issues in the front going around corners...it's in the video with Jay Leno from this time last year...hope this answers your questions
     
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  4. BKuz

    BKuz Retired American Fighting Man

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    Pirelli P Zero
    Tire Size: 295/40ZR20/XL
    Service Description: 110Y
    Sidewall: Black Sidewall
    Material Number or MSPN: 1743900
    Rim Width (min. to max.): 10.0 - 11.5
    Section Width: 11.9
    Overall Diameter: 29.3
    Tread Depth (32nds): 10
    RPM: 688
    Max Load (lbs.): 2337 lbs @ 50 psi

    It shows a minimum of a 10 inch rim.

    BKuz
     
  5. DGatzby

    DGatzby Gold Member Hellcat Car Club HCC Charter Member Midwest Regional Pres.

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    Same thing with 305's, people are mounting them on the 9.5" rears. The issue is you need to make sure the wider tire won't rub the suspension up front, even if you mount it. Let us know.
     
  6. BKuz

    BKuz Retired American Fighting Man

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    It looks like in order to safely put wider tires on the back of the Hellcat you will have to buy larger rims such as 10.5" or 11" rim. I was hoping to keep using the stock rims. Is there a rim out there that looks almost identical to the stock black matte Hellcat rims, that will fit without modifying the wheel well? I know you have to have the proper offset or the tire will rub.

    BKuz
     
  7. Lighty

    Lighty Silver Member

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    Replika wheels
     
  8. BKuz

    BKuz Retired American Fighting Man

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    Lighty,

    Thank you for the tip! I will check it out.

    BKuz
     
  9. Lighty

    Lighty Silver Member

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    You are welcome Sir,
    I got a pair for my MT 305s 10 wide
     
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  10. Hellcathopefull

    Hellcathopefull Hellcat Member

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    I'm planning on going with the 295/40R20 Pirelli P Zero on the stock rims. I can deal with a little taller sidewall, but a shorter one will give me fits. Just trying to find a good side view image of the 295/40's on a Cat. The 305's are too much of a chance on width and the gap/height in the fender is a little much for my liking..
     
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  11. BKuz

    BKuz Retired American Fighting Man

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    Lighty,

    Did you have to do any modifications? Do you having any rubbing? Did you get the matte black? Sorry, for all the questions, but I am very interested in these rims. I know what I want for Christmas. You can buy the SRT center hubs and replace the blank generic ones and it will almost look like stock Hellcat rims.

    Thank you again for the tip!

    BKuz
     
  12. Driver72

    Driver72 Gold Member

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    Just so it's clear, going to 285/40 street tires will gain you nothing in acceleration.
    Going to 295/40 street tires on the stock rims will only make your car accelerate slower.
    And both will make your car handle worse.
     
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  13. Milspec

    Milspec Silver Member

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    Care to explain your reasoning? I dont believe you are correct as well when you change width to 295 0r 305 you would need to go from 40 to 35... so the proper size that would actually fit is 295 35 20 or 305 35 20 (rear) ...295 setup will fit front only. Anytime you have more rubber on the road its a good thing.
     
  14. sgoyal

    sgoyal Gold Member

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    I've been reading old thread and noticed that so many fellow members have run 305 Nitto or MT 305 without any problem in stock rim
     
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  15. BKuz

    BKuz Retired American Fighting Man

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    Specifications
    Pirelli
    P ZERO
    • Size: 305/35ZR20
    • Service Description:(104Y)
    • Load Range: SL
    • UTQG: 220 AA A
    • Max Load: 1984 lbs.
    • Max Inflation Pressure:51 psi
    • Tread Depth:8/32"
    • Tire Weight: 31 lbs.
    • Rim Width Range:10-12"
    • Measured Rim Width:11"
    • Section Width:12.3"
    • Tread Width:10.6"
    • Overall Diameter:28.4"
    • Revolutions Per Mile:732
    • Country of Origin:GERMANY
      ITALY
    • Size: 305/35ZR20
    • Service Description:(104Y)
    • Load Range: SL
    • UTQG: 220 AA A
    • Max Load: 1984 lbs.
    • Max Inflation Pressure:51 psi
    • Tread Depth:8/32"
    • Tire Weight: 31 lbs.
    • Rim Width Range:10-12"
    • Measured Rim Width:11"
    • Section Width:12.3"
    • Tread Width:10.6"
    • Overall Diameter:28.4"
    • Revolutions Per Mile:732
    • Country of Origin:GERMANY
      ITALY
    For rim width it says 10 to 12 inch rim. I don't see 9.5 mentioned anywhere.

    BKuz
     
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