Drag Radials

Stock Specifications (2022 Dodge Challenger)

Wheel Types

• Forged Wheels: Lightest, strongest, most expensive. Best for performance — reduce unsprung weight. ~$300–$800 per wheel.
• Flow-Formed (Rotary Forged): Near-forged strength and weight at lower cost. Best value performance upgrade. ~$150–$400 per wheel.
• Cast Wheels: Standard aftermarket. Heavier. Fine for appearance upgrades. ~$80–$250 per wheel.

Offset Guide

• Stock offset: +18 to +25mm
• Going wider (negative offset): Wheels flush or poke — cosmetic, but may require fender rolling.
• Going narrower (positive offset): Wheels tuck — functional for clearance.
• Max rear width without modification: 295/40R20 rear, 275/40R20 front.

Tire Types

Drag Radials

• Used when launching at the drag strip to maximize grip with soft compound.
• Factory drag radial option on SRT Super Stock and 1320 models.
• Top speed limited to 168 mph with drag radials installed.
• Popular brands: Nitto NT555RII, Mickey Thompson ET Street R, Hoosier Quick Time Pro.
• Weld Racing wheels popular for dedicated drag setup.

Site UX Recommendations

• Bolt pattern (5x115mm) should be prominently shown.
• Weight saving per wheel shown — forged vs. cast matters for 0-60 and cornering.
• "Drag setup" vs. "Street/Track setup" filter.
• Note: drag radials are not street-legal in some jurisdictions.

---

Factory Drag Platform: The Scat Pack 1320

Dodge produced a factory drag-optimized variant — the Challenger R/T Scat Pack 1320 — with these from-factory drag features:

• Nexen SUR4G 275/40R20 drag radials (street-legal DOT-rated)
• TransBrake — holds the car against the drivetrain for a loaded launch release
• Torque Reserve — builds engine torque before launch for maximum hit
• Line Lock — front brake hold for burnout/tire warm-up
• Launch Assist — manages wheel spin off the line
• Asymmetrical limited-slip differential with 3.09 final drive ratio
• Extreme-duty 41-spline rear axle half shafts — rated for drag abuse
• SRT-tuned three-mode adaptive damping — softer/taller springs allow weight transfer to rear on launch
• Brembo high-performance brakes — factory equipment
• Factory ET: 11.70 sec @ 115 mph quarter mile, stock

Only 334 of the 2022 model were produced — a limited production drag-focused variant.

Key Drag Build Concepts for Any Challenger

1. Weight transfer is everything at launch — softer rear springs and taller ride height encourage weight to squat to rear
2. Drag radials > street tires — contact patch and compound make a night-and-day difference in 60-ft times
3. Narrow front / wide rear ("skinnies") — reduces rotating mass on front, keeps weight over rear
4. Automatic > manual for drag — TorqueFlite 8HP90 shifts faster than any driver; manual requires clutch skill
5. Gear ratios matter — 3.09 final drive (1320) vs. standard 2.62; numerically higher = better launch, lower top speed
6. Air-to-fuel safety — drag launches generate massive heat spikes; ensure fuel system is dialed before hard launches on boosted builds

Quarter-Mile Reference Times

Site UX Recommendations

• "Drag Strip" build path tag on relevant parts (drag radials, driveshaft, TransBrake, short-shift kit)
• "1320 Compatible" badge for parts proven on the factory drag platform
• Weight reduction tip: every 100 lbs removed = ~0.1 sec improvement in ET

---