2015 challenger hellcat 707 hp - Mustang Evolution

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Old 07-07-2014, 10:55 PM   #1
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2015 challenger hellcat 707 hp

HOLY ****E

And under warranty


Just saw a new Z28 today at dealership as well, $73,000 Sticker
THEIR NUTS

New Challenger should fetch the same price
BUT WORTH IT >
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Old 07-07-2014, 11:29 PM   #2
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Old 07-07-2014, 11:36 PM   #3
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2015 fat cat
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Old 07-08-2014, 12:34 AM   #4
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That heavy PIG will need 707 HP just to move. Lol....
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Old 07-08-2014, 12:44 AM   #5
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I gotta say it's really cool. The same way an old late 70's trans am is cool. It's not a performance ride, but it's gonna turn heads every it goes. I really dig the commercial though. Cool shots of it drifting and stuff to some Mötley Crüe is pretty rad lol. Murica is the word that comes to mind hehe


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Old 07-08-2014, 10:35 AM   #6
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Looking forward to meeting one on the street..
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Old 07-08-2014, 10:37 AM   #7
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That heavy PIG will need 707 HP just to move. Lol....
You will need 800+ to beat one in your 3v buddy.


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Old 07-08-2014, 11:40 AM   #8
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i think its overrated, myself... but cool nonetheless. we need a little competition for things to stay fun
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Old 07-08-2014, 11:48 AM   #9
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I've been hearing a base price around $55k for one of these.

I also heard that they have ran high 10's on factory 275 tires.
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Old 07-08-2014, 11:52 AM   #10
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Yup dodge claims 3.5 0-60 time
Low 11 secound 1/4.
All you people talking a hit about it better have the car to back it up

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Old 07-08-2014, 11:53 AM   #11
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How's it's handling though?


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Old 07-08-2014, 12:06 PM   #12
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It's still a pig, but is it a cool ride?.......sure.
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Old 07-08-2014, 01:06 PM   #13
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707hp on 275 tires = excellent smoker for my brisket and ribs
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Old 07-08-2014, 01:37 PM   #14
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How's it's handling though?


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Linear acceleration + is good - is ok
Lateral acceleration on 275s with that much weight and HP with a relatively high CoG will be expectedly squirrelly as hell if not outright dismal.

The current SRT Challengers do not handle well and adding a couple hundred HP to that platform is not going to make it any better.

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Old 07-08-2014, 01:46 PM   #15
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if they shrunk it id buy it
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Old 07-08-2014, 02:28 PM   #16
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i agree, the 707HP needs a lot of backing to be able to be actually put to the ground.
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Old 07-08-2014, 02:30 PM   #17
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i agree, the 707HP needs a lot of backing to be able to be actually put to the ground.
Not necessarily the tire size has nothing to do with it technically. It's all about suspension and tire choice. Not " width"

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Old 07-08-2014, 02:35 PM   #18
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They didn't really change the suspension much for that car. So my guess is it can't launch and it can't corner. Just a high powered boat.


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Old 07-08-2014, 02:37 PM   #19
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Nothing a few $$$$ won't fix.

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---------- Post added at 02:37 PM ---------- Previous post was at 02:36 PM ----------

I was saying in general also, not directly towards a stock car,
To many people get caught up in the width of a tire

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Old 07-08-2014, 02:41 PM   #20
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I think its a good looking car.. Im excited to see it in person just as i was with the Z28
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Old 07-08-2014, 03:08 PM   #21
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Not necessarily the tire size has nothing to do with it technically. It's all about suspension and tire choice. Not " width"

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It's actually all about frictional coefficients between the tire contact patch and the contact surface it is acting upon.

All things being equal, the easiest way to increase contact patch and thereby friction required for acceleration is to use wider tires. At a certain level, using wider and wider tires becomes impractical and using larger diameter tires becomes the only way to effectively increase the contact patch area.

Suspension plays a part by ensuring that the contact patch maintains a consistent frictional connection to the contact surface and effectively minimizes the effects of weight shift and surface irregularities.

Tire composition is important as it directly impacts both suspension characteristics as well as direct frictional characteristics.

All of these things are important but it boils down to a simple scenario. The greater the frictional coefficient between the contact patches of the motive tires and the contact surface the more HP can be effectively applied to acceleration. Given the same power, suspension, tire compounds, and mass the car with the wider tires will exhibit a higher rate of linear acceleration than the car with narrower tires.
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Old 07-08-2014, 03:16 PM   #22
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It's actually all about frictional coefficients between the tire contact patch and the contact surface it is acting upon.

All things being equal, the easiest way to increase contact patch and thereby friction required for acceleration is to use wider tires. At a certain level, using wider and wider tires becomes impractical and using larger diameter tires becomes the only way to effectively increase the contact patch area.

Suspension plays a part by ensuring that the contact patch maintains a consistent frictional connection to the contact surface and effectively minimizes the effects of weight shift and surface irregularities.

Tire composition is important as it directly impacts both suspension characteristics as well as direct frictional characteristics.

All of these things are important but it boils down to a simple scenario. The greater the frictional coefficient between the contact patches of the motive tires and the contact surface the more HP can be effectively applied to acceleration. Given the same power, suspension, tire compounds, and mass the car with the wider tires will exhibit a higher rate of linear acceleration than the car with narrower tires.
Nope, 275 outlaw class buddy, I will throw a 275-285 out back and show you that suspension plays a bigger key bud, promise you that.

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Old 07-08-2014, 03:19 PM   #23
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Have planted 700+ tq on a 275 street radial. Suspension is alot more coming into play than the width, argue all you want

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Old 07-08-2014, 05:10 PM   #24
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So why would you take the frontal area hit from a 275 from an aerodynamic resistance perspective or rotational mass perspective? Just set up the suspension properly and run a 115 width tire. Think of the money you will save on tires.... I kid, I kid.

The limiting factor of linear acceleration, negating aerodynamic forces which are essentially nil from a stationary perspective, is the frictional coefficients between the contact patches of the motive tires and the contact surface.

If you look at the contact patch on your 275/60R15 static vs. under acceleration, the tires you are running will deform SIGNIFICANTLY at low air pressures which effectively expands the contact patch and you are correct in stating that suspension makes a difference as it is essential that the suspension account for this deformation. This has the same effect as running a wider lower profile tire that is more resistant to deformation.

I am not sure what point you are trying to make. Is it that it is possible to hook up with 700+ HP? If this is the point you are trying to make, yes, it is certainly possible, especially in the scenario your have described with outlaw drag. Those same factors make it unlikely that the Challenger in question will be able to hook up and effectively use that HP in stock trim. If you look at the difference between the contact patch on your outlaw vs that of the P275/40ZR20 on the hellcat under linear acceleration, it is probably somewhere between 20-40% due to tire deflection. In order for the hellcat to be able to use it's 700+ HP as effectively as your outlaw, it is going to need to run tires that are 20-40% wider to achieve the same effective contact patch.
No matter what you do to the suspension on the hellcat, it is not going to be able to make up this difference.

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Old 07-08-2014, 05:18 PM   #25
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Not necessarily the tire size has nothing to do with it technically. It's all about suspension and tire choice. Not " width"

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i wasn't talking about the tires

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They didn't really change the suspension much for that car. So my guess is it can't launch and it can't corner. Just a high powered boat.


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i was talking about this ^^ among other things
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Old 07-08-2014, 05:24 PM   #26
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Nvm you Do not understand what I'm talking about.
I have a 650+hp / 700 ish tq at the tires 5.0. Suspension is what got me to hook up, more so then tires. Back on drag radials and stock suspension could not hook up at all. Now with suspension and same tires I hook. Which is what I'm trying to explain, suspension has a bigger key in hooking up vs a tire

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Old 07-08-2014, 05:25 PM   #27
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I can hook up on a 275, 285, 305,325 ET street width DOES NOT MATTER. Suspension and tire choice does

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Old 07-08-2014, 05:46 PM   #28
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If it doesn't matter then you should be able to hook up just as well with a 125w R15 size tire.

Try it and let me know how that works out for you

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Old 07-08-2014, 05:48 PM   #29
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If it doesn't matter then you should be able to hook up just as well with a 125w R15 size tire.

Try it and let me know how that works out for you

-Static
You completely do not get my point.

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Old 07-08-2014, 05:49 PM   #30
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You completely do not get my point.

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No he doesn't.


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Old 07-08-2014, 06:07 PM   #31
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No, I don't. You are describing a dynamic system with a number of variable components and stressing that one of them is the critical link in the whole system with limited empirical data and extrapolating your experiences to a non-similar situation and stating that it should match your experience.

To wit, if you can hook up with 700+ HP then the hellcat should be able to do the same.
I am pointing out the ways that the situation is different and stating that the performance of the hellcat is going to suffer for it in linear acceleration.

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Old 07-08-2014, 06:11 PM   #32
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Throw a 305 drag radial on the hellcat and I promise it still will not hook worth a ****.

Now add suspension to that and she will hook.

The challengers have horrible wheel hop, and just adding a sticky tire to this will make it worse. Suspension has to be added to the equation

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Old 07-08-2014, 06:20 PM   #33
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This is true but if you throw some 305s on it, all things being equal it will hook up better than with the stock 275s. I think we might be saying the same thing but coming at it from much different directions.

The end result is that in stock form this thing isn't going to be able to effectively use the power it has.

-static


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Old 07-08-2014, 06:58 PM   #34
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Yup dodge claims 3.5 0-60 time
Low 11 secound 1/4.
All you people talking a hit about it better have the car to back it up

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The 662hp 2014' GT500 has a better power to weight. On paper the GT500 should beat it. The only advantage the fatcat has is wider tires and may suspension to put that power down. At $15,000 to $20,000 over a GT500 they can have it i'll definitely take a GT500 i'd pulley it with a tune. And spank that fat a$$ cat!!!

Fatcat... 4185 pounds divided buy 707hp = 5.91 pounds per hp

GT500... 3845 pounds divided by 662 = 5.81

It is definitely a drivers race but for about $15,000 less the GT500 is a much better car.

Just saying!


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Old 07-08-2014, 06:59 PM   #35
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Sooo theyre just gonna throw in a 700hp engine and not upgrade anything else?....
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