2020 Shelby GT500 Mustang leaked specs: 720HP @ 7500 RPM, 650 ft-lbs @ 4500 RPM, 4225lbs curb weight

Discussion in 'Shelby GT500 Mustang' started by Rhyu, Aug 22, 2018.

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  1. MaskedRacerX

    MaskedRacerX Driver

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    It swaps the wheels for CF wheels, and it's suggested the weight difference is like the GT350-to-R wheels, so that's -60lbs (not factoring in tire weight), the rear wing gets swapped for a CF flavor, doubt that adds any weight, and it also removes the rear seat which _has_ to be some decrease.
     
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  2. Zitrosounds

    Zitrosounds Well-Known Member

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    Going off what is fact about the car and what is in this leaked document, 4225 seems plausible but on the high side. I am sure the weight posted is of a fully loaded non TP. My guess is the TP will be at 4100 lbs +/-50 and obviously is speculation.

    Has there been any talk about a convertible? Going off past models I would guess there will be.
     
  3. jake_zx2

    jake_zx2 Well-Known Member

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    Aren't the standard GT350 wheels cast? Keep in mind, the standard GT500 wheels are rotary forged, so they're already going to be fairly lightweight. The wing likely will add weight... have you ever held a wing of that size? I did, however, forget about the rear seat delete. That should save about 50lbs or so. But ultimately, what I was getting at is that a 200lb savings for the CF package is unrealistic
     
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  4. Kimbo510

    Kimbo510 Well-Known Member

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    I think that document was legit. They got the max RPM, gear ratio and carbon drive shaft correct. My guess is the base is 4225lbs with track pack coming in a bit lighter. Carbon wheels save 60lbs plus rear seat delete...so maybe 4100lbs. If this was going to be over 750HP, they would have been saying the new car will be 750+ instead of 700+. 720hp sounds right and they are probably working to squeeze out a bit more. I expect it to be under 750hp for these reasons.

    R
     
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  5. Epiphany

    Epiphany Well-Known Member

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    All I can say is that the rear wing is extremely light given the physical space it takes up. You'll be surprised when you learn how much the wing and supporting hardware actually weighs.

    I did a factory Ford RSD in my GT350 and from what I can tell the GT350 will use a near identical composite panel (why wouldn't they?). From my writeup from a few years ago...

    So figure just over 30lbs of weight reduction from a RSD in the GT500.
     
  6. ttime500

    ttime500 Well-Known Member

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    Fair reasoning. The only reason I have for it to be 755ish and a weight around 4K is if the rumored testing 1/4 time ([email protected]!) is accurate at all it would require a better hp/weight ratio then suggested by the doc. That trap is ZR1 level. But the doc. Specs would give it hp/weight ratio much closer to the ZL1 as opposed to the ZR1. I don’t think I’ve seen a stock ZL1 trap over 130, unless it was a total hero run. But that could be a totally false 1/4 mile report!!!
     
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  7. MaskedRacerX

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    I've been around quite a bit of carbon fiber work, car and sailboat parts, and I'm always astonished at the low weight, but I do agree that 200lbs is probably not going to happen - I figure more along the lines of the GT350 vs. GT350R, which I believe is usually around 100-105 lbs depending on exact options (and who you ask :D)
     
  8. FastCarFanBoy

    FastCarFanBoy Well-Known Member

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    Meh, I don't know of any motor that makes peak power at redline so thats a red flag to me. The last Gt500 had a CF driveshaft so guessing the new one will isn't a stretch and 3.73 gear? I guess, but it's not like Ford hasn't offered it on almost every Mustang made in the last 10 years.
     
  9. jake_zx2

    jake_zx2 Well-Known Member

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    I know the wing isn't going to necessarily be HEAVY, but what I'm saying is it'll undoubtedly be heavier than the track pack spoiler, meaning no weight savings from the carbon fiber wing.

    Good info! So I was being a bit generous in my estimates for the rear seat delete. Do you happen to know if the standard GT350 wheels are cast or forged?

    2018 Mustang GT does, to name one
     
  10. NightParade

    NightParade Well-Known Member

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    I just dont see the need for those huge 16.5" rotors and that big of front caliper, seems like they could have saved a bunch of weight there or done a carbon ceramic but i guess wanted to flaunt for the big snake. Also kind of bummed you can use smaller than 20s which will inherently be more weight with tires *shrugs*

    The power doesnt really matter to me because you can easily add more but just dont want it to be too porky and feel cumbersome.
     
  11. fpa1974

    fpa1974 Well-Known Member

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    From what I know they are cast and weigh in the low to mid 30s.
     
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  12. thehunterooo

    thehunterooo Well-Known Member

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    Bump because I said I would when the actual numbers came out.
     
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