Edelbrock E-Force Supercharger Guide: Challenger & Charger

The Edelbrock E-Force supercharger is the most popular bolt-on positive-displacement blower for the 5.7L and 6.4L Gen III HEMI, and it turns a 2015–2018 Dodge Challenger, Dodge Charger or Chrysler 300 into a genuine 480–570 rear-wheel-horsepower street car without touching the short block. This buyer's guide compares the two E-Force kits that fit the LX/LC platform muscle cars – the 5.7L system (part #1517) and the 6.4L system (part #15172) – with real rear-wheel numbers, boost figures, kit contents, install expectations, and pricing so you can choose the right one for your HEMI. At NLP Performance in Tampa, FL, forced induction is the single most common "big power" upgrade our Mopar customers ask about, and the E-Force is where most of them land.

Why Supercharge a 5.7L or 6.4L HEMI?

A supercharger is the fastest way to add big, reliable, everyday power to a naturally aspirated HEMI. From the factory, a 2015–2018 5.7L R/T is rated at roughly 370 horsepower and 395 lb-ft, which typically puts around 300 horsepower to the rear wheels on a chassis dyno. The 6.4L 392 (Scat Pack and SRT) is rated at 485 horsepower and 475 lb-ft, or about 400 rwhp stock. Bolt-ons like headers, a cold-air intake and a tune usually add 25–40 rwhp on these engines – useful, but a long way from the gains a blower delivers.

The Edelbrock E-Force changes the math. It forces roughly 10–11 psi of boost into the engine, so the 5.7L kit produces 483 rwhp and 450 lb-ft, and the 6.4L kit produces 572 rwhp and 531 lb-ft. That is a gain of roughly 150–180 rwhp over a stock, otherwise-unmodified car – the difference between a quick daily driver and a car that will run deep into the 11-second quarter mile on drag radials. Because the E-Force is a positive-displacement (Roots-style) supercharger, that boost and torque arrive almost instantly off idle, which is exactly what makes a heavy muscle car feel alive in traffic.

How the Edelbrock E-Force 2650 System Works

The Edelbrock E-Force is a complete, hood-clearing supercharger system built around the Eaton Gen VI R2650 TVS rotor pack. The R2650 uses a four-lobe rotor design with 170 degrees of twist, which is what lets a Roots-style blower move a large volume of air quietly and with a minimal rise in air temperature. Sitting on top of the engine is Edelbrock's patented DP-3C ("Dual-Pass Three-Core") intercooler: the intake charge passes through the core twice, and the design carries 45% more surface area than conventional single-pass units, so intake air temperatures stay low and power output stays consistent pull after pull.

An integrated bypass valve eliminates parasitic drag under light throttle, which protects fuel economy and keeps the car civil for daily driving. Every kit is engineered to bolt on under the factory hood with no cutting, and the systems sold with the Edelbrock tuner ship as CARB-compliant street kits – important if you live somewhere with emissions testing. The tuner also loads the calibration that keeps the factory speed limiter and drivability intact.

Edelbrock E-Force 5.7L Kit (Challenger R/T, Charger R/T, 300)

The Edelbrock E-Force 2650 TVS kit for the 5.7L HEMI (part #1517) makes 483 horsepower and 450 lb-ft at the rear wheels – roughly a 180 rwhp jump over a stock R/T – while keeping the factory hood, air conditioning and daily manners. It fits 2015–2018 Dodge Challenger R/T, Charger R/T and Chrysler 300 models with the 5.7L engine, and it ships complete with the supercharger, high-velocity intake manifold, DP-3C intercooler, low-temp heat exchanger, pulley, hoses, wiring and the Edelbrock tuner. For the vast majority of R/T owners who want a big, dependable power bump they can drive every day, this is the kit.

Edelbrock E-Force 6.4L Kit (392 Scat Pack, SRT)

The Edelbrock E-Force Stage 1 street kit for the 6.4L HEMI (part #15172) delivers 572 horsepower and 531 lb-ft at the rear wheels on 2015–2018 Dodge Charger and Challenger 6.4L cars – the 392 Scat Pack and SRT 392. It uses the same Eaton Gen VI R2650 TVS rotating assembly and DP-3C intercooler as the 5.7L kit, so the hardware, install and daily manners are nearly identical; the difference is the larger 392 short block underneath, which turns the same 10–11 psi of boost into an extra ~90 rwhp over the 5.7L system. If you already own a Scat Pack or SRT, this is the kit that keeps your engine's displacement advantage.

5.7L vs 6.4L E-Force: Which Kit Do You Need?

The choice is decided by the engine you already own, not by preference. Match the kit to your displacement: the 5.7L R/T and 300 use part #1517, and the 6.4L 392 Scat Pack and SRT use part #15172. Both make roughly the same boost and share the same supercharger and intercooler; the 6.4L simply starts with more cubic inches, so it finishes with about 90 more rear-wheel horsepower. The table below lays out the numbers side by side.

What's in the Box and Installation

Each E-Force Stage 1 street kit is a complete, bolt-on system. In the box you get the supercharger assembly, the high-velocity intake manifold, the DP-3C dual-pass intercooler with its low-temp heat exchanger, the drive pulley, all hoses and wiring harnesses, and the Edelbrock tuner pre-loaded with the correct calibration. Nothing about the short block or heads has to come apart, which is why the E-Force is considered one of the most drivable, warranty-friendly ways to make 500-plus horsepower on a HEMI.

Plan on a full working day for the install. A shop familiar with the kit can complete it in the roughly 8 hours Edelbrock quotes; a first-timer in the driveway should budget 12–13 hours across a weekend. Because the tuner ships with the calibration that retains the factory speed limiter and drivability, the car is ready to drive as soon as the flash finishes – no separate dyno visit is required for a baseline street tune, though many owners add a custom tune later to squeeze out the last few horsepower.

Supporting Mods and Tuning

The E-Force is designed to run reliably on a stock engine, but a few supporting choices protect that investment. Run 91 or 93 octane premium fuel, keep the cooling system and spark plugs fresh (many builders drop to a one-step-colder plug), and make sure your tires and driveline can actually put the new torque down – a 480–570 rwhp car will roast worn rear tires instantly. If you want to dress the engine bay to match, the Edelbrock DP-3C coil cover kit finishes the E-Force install cleanly. Owners chasing more than the out-of-box numbers typically add a smaller upper pulley, a custom tune, and an upgraded fuel system, though those steps move the car out of the CARB-compliant, warranty-friendly configuration.

For a broader look at forced-induction options across the HEMI lineup and other platforms, browse the full supercharger collection at NLP Performance. Our Tampa team can help confirm fitment for your exact year and trim before you order.