Dodge Challenger SRT Hellcat Redeye
6.2L supercharged V8, IHI twin-screw — 2.4L on standard Hellcat (11.6 PSI, 707-717 hp), 2.7L on Redeye (14.5 PSI, 797 hp, Demon-derived, forged rods + pistons). Black key fob = 500 hp via drive-by-wire throttle mapping. Red fob = everything. SRT Power Chiller diverts A/C refrigerant to cool intake. 2015-2016: snout bolt backs out, destroys bearings — $10-12k. Intercooler bricks leak coolant into cylinders. Heat soak costs 30-50 hp after repeated pulls — physics, not a defect.
Redeye — Demon supercharger, forged internals, 797 hp
Demon's 2.7L supercharger, 14.5 PSI, forged rods, forged aluminum pistons, high-flow injection — the bottom end the standard Hellcat should have had. 797 hp (less than Demon because the hood flows less air). SRT Power Chiller diverts A/C to cool intake. Same heat soak, same tire budget — but internals that survive the boost.
Engine Weaknesses 2
Internal coolant passages in intercooler brick leak into intake. Coolant enters cylinders, causes cold-start misfires, scores cylinder walls. FCA replaces entire supercharger assembly under warranty (~$11,000).
Symptoms: Misfire on cold start, coolant level drops with no visible leak, white exhaust smoke
Intake temps above 170F trigger timing retard. After repeated full-throttle passes, 30-50 hp loss until system cools. Physics, not a defect. Interchiller mods help for track use.
Symptoms: Power drop after multiple full-throttle runs, slow recovery between pulls
Vehicle Weaknesses 9
Totally Integrated Power Module controls all electrical functions. Internal defect causes random failures: fuel pump dies, windows cycle on their own, horn sounds randomly. Affects 22-34% of 2008-2014 vehicles.
Circuit board contamination from manufacturing causes short circuits. Loss of power assist — steering becomes nearly impossible. NHTSA recall S19/16V-167 for affected VINs. Rack replacement out of warranty: $4,000.
Alternator diode fails from electro-hydraulic steering loads. Failed diode shorts, causing heat and smoke. NHTSA recall 14V634000 covers 2011-2014 with 3.6L and 5.7L. Free dealer repair.
Factory expanding foam inside rocker panels traps moisture. Rust develops from inside out, invisible until panels are perforated. Affects all years and all climates, not just salt belt.
Upper and lower bushings distort under 4,200+ lbs. Factory rear alignment uses non-adjustable negative camber — when bushings wear, toe and camber drift with no correction. Uneven rear tire wear is the first sign.
Dashboard plastic off-gasses in hot climates. Cracks on passenger side near windshield. Interior temps reach 150F+. Dash pad replacement $200 parts + 6 hours labor.
UConnect 8.4 freezes on startup, reboots mid-drive, blue screen. 2018 model year worst. Replacement unit $400-600 aftermarket.
Heavy V8 coupe generates extreme brake heat. Rotors develop thickness variation from uneven pad transfer. SRT Brembo brakes also affected. Documented at 17,000 miles.
High-pitch gear whine above 40 mph. Royal Purple 75W-90 synthetic reduces noise ~80%. Wheel hop from launches accelerates ring and pinion wear.