Dodge Challenger & Charger – How Quick is a Stock Hellcat?

Dodge’s Hellcat-powered Challengers and Chargers wear some of the widest tires ever fitted to a factory muscle car, and the sizing changed as the lineup grew more powerful. From the original 245-width rubber to the SRT Super Stock’s massive 315/40ZR20s, every size was factory-spec, not an aftermarket mod. That rubber is also why the Super Stock can hit 60 mph in about 3.25 seconds and the Redeye tops out near 203 mph — numbers that owe as much to traction as they do to the supercharged Hemi underneath.

Are the tires a big modification or these cars are considered as Stock?

A supercharged Hellcat sitting on a dealer lot doesn’t look all that different from an ordinary Challenger or Charger parked next to it — same fenders, same stance, same factory badges. But underneath those wheel wells sits a detail that separates the merely fast from the genuinely terrifying, and it has nothing to do with the 6.2-liter supercharged Hemi rumbling under the hood. It’s the rubber. Dodge‘s engineers spent nearly as much effort chasing the right tire compound and width as they did chasing horsepower, because 700-plus horsepower means nothing if it can’t reach the pavement. So when a bone-stock Hellcat rips off a quarter-mile time that embarrasses cars costing three times as much, how much of that comes from the engine — and how much comes from what’s bolted to the wheels?

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The Tires Are Stock — They’re Just Not Ordinary

The confusion is understandable, because the factory tires on a Hellcat look aggressive enough to pass for an aftermarket upgrade. The original 2015 Hellcat rode on 245/45ZR20 rubber before Dodge widened the front and rear to 275/40ZR20 to better handle the power. As the lineup grew to include the Redeye and Jailbreak trims, Dodge specified even wider factory tires — 275/40ZR20 up front and a beefy 305/35ZR20 out back on Widebody models. The range-topping SRT Super Stock takes it further still, wearing massive 315/40ZR20 tires from the factory. None of it is a dealer add-on or an owner modification; every one of those sizes rolled off the assembly line exactly as specified, because Dodge learned early that a supercharged Hemi without the right contact patch is just an expensive way to melt rubber in a parking lot.

What That Rubber Actually Buys You

The performance numbers explain why Dodge bothered. The SRT Hellcat Redeye tops out at 203 mph, tying it with the Redeye Charger for the fastest production sedan and coupe in the lineup, while the Super Stock trim — riding on that widest factory tire — turns in the quickest numbers of the bunch, hitting 0-60 mph in roughly 3.25 seconds and covering the quarter-mile in about 10.5 seconds. Widen the tire by even an inch and a half, as Dodge did with the Redeye Widebody, and the 0-60 time drops by roughly two-tenths of a second compared to the standard Redeye — a reminder that in a car this powerful, traction is often the difference-maker, not the horsepower figure printed on the window sticker.

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