Next Level Performance
August 31, 2026 • 10 min read
The Edelbrock E-Force supercharger is the most streetable way to push a Dodge Challenger or Charger HEMI well past 480 rear-wheel horsepower on a 100% stock long-block. It is a positive-displacement, Roots-type Eaton TVS blower that bolts on without opening the engine, keeps your factory A/C and drivability, and — run with the included Edelbrock calibration — stays 50-state emissions legal. Two kits dominate the modern LC HEMI lineup: the 5.7L R/T kit and the bigger-displacement 6.4L 392 kit. Below we compare all four Edelbrock E-Force HEMI kits head-to-head so you can match the right one to your car, engine, and budget.
Our Verdict
For most 2015-2018 R/T owners, the 5.7L E-Force TVS 2650 kit (PN 1517) is the best all-around HEMI supercharger: 483 RWHP, 50-state legal, and backed by a 3-year / 36,000-mile warranty.
If you already run a 6.4L 392 Scat Pack or SRT, step up to the 6.4L kit (PN 15172) for 572 RWHP. Both use the same Gen VI R2650 blower and air-to-water intercooling, so the choice is dictated by which engine is already in your car. Owners of earlier 2009-2014 LX/LC HEMIs get their own TVS 2300 kits.
Shop Our Top Pick →What Is the Edelbrock E-Force Supercharger for the HEMI?
The Edelbrock E-Force is a complete, bolt-on supercharger system built around an Eaton Twin Vortices Series (TVS) rotor pack — a positive-displacement, Roots-type blower that sits in the valley on top of the HEMI V8. Unlike a centrifugal supercharger that builds boost as engine speed climbs, the TVS delivers instant, low-rpm torque the moment you touch the throttle, which is why a supercharged HEMI feels like a bigger-displacement engine rather than a peaky turbo car.
The modern 2015-and-later kits use Eaton's larger Gen VI R2650 rotor pack (2,650cc of displacement, 4-lobe rotors with a 170° twist), while the earlier 2009-2014 HEMI kits use the smaller TVS 2300 (2,300cc). Every E-Force HEMI kit is intercooled with a self-contained air-to-water system: dual charge-cooler cores flank the rotors, fed by a dedicated low-temp heat exchanger and coolant pump to keep intake temperatures — and detonation — in check. The whole assembly fits under the factory hood, retains the stock long-block and accessories, and includes the calibration and upgraded fuel injectors needed to run it. At NLP Performance in Tampa, FL, this is the power adder we point HEMI owners toward when they want big, reliable, daily-drivable horsepower without an engine build.
Edelbrock E-Force HEMI Supercharger Kits Compared
There are four Edelbrock E-Force kits that fit the Challenger, Charger, and 300 HEMI platform, split by engine and model year. The table below lists each kit's engine, fitment years, Edelbrock-rated output, and current price. One important note on the numbers: Edelbrock rates the 2015-2018 kits and the 2011-2014 5.7L kit at the rear wheels (RWHP), but rated the 2009-2010 5.7L kit at the flywheel, so its figure looks higher than a like-for-like wheel number would. We flag the rating basis in the table rather than "converting" it.
| Kit | Engine | Fitment Years | Rated Output | Price |
|---|---|---|---|---|
| E-Force TVS 2650, 5.7L (PN 1517)Top Pick | 5.7L HEMI | 2015–2018 | 483 RWHP / 450 RWTQ | $10,995.95 |
| E-Force Stage 1, 6.4L 392 (PN 15172) | 6.4L 392 HEMI | 2015–2017 | 572 RWHP / 531 RWTQ | $10,795.95 |
| E-Force Stage 1, 5.7L (PN 1532) | 5.7L HEMI | 2009–2010 | 506 hp / 501 lb-ft (flywheel) | $10,995.95 |
| E-Force Stage 1, 5.7L (PN 1534) | 5.7L HEMI | 2011–2014 | 471 RWHP / 475 RWTQ | $9,495.95 |
2015-2018 5.7L HEMI Kit (PN 1517): The Top Pick
The 5.7L E-Force TVS 2650 kit takes a stock 2015-2018 Challenger or Charger R/T from roughly 375 horsepower to a rated 483 RWHP and 450 lb-ft at the wheels — a gain of well over 100 wheel horsepower on the factory bottom end. It uses the same Gen VI R2650 blower and air-to-water intercooler as the 6.4L kit, comes with upgraded 46 lb/hr fuel injectors, and includes the Edelbrock calibration required to make it 50-state legal. This is the kit we recommend to the largest group of HEMI owners because 5.7L R/T cars are the most common, and the value-per-dollar of the power gain is excellent.
Key Specifications
The Eaton R2650 rotor pack and integrated air-to-water intercooler that top the 5.7L HEMI.
What We Like
- + 483 RWHP on a 100% stock 5.7L long-block — no engine teardown
- + 50-state CARB-legal with the included calibration; retains factory A/C
- + Instant low-rpm boost from the Roots-type TVS; fits under the stock hood
Things to Consider
- – Requires 91-octane premium fuel at all times
- – 2015+ HEMIs need a mail-in ECM tune (8-10 business days)
2015-2017 6.4L 392 Kit (PN 15172): Maximum Power
The 6.4L 392 E-Force kit is the most powerful of the four, taking a stock Scat Pack or SRT 392 from 485 horsepower to a rated 572 RWHP and 531 lb-ft at the wheels. It shares the R2650 blower with the 5.7L kit but pairs it with Edelbrock's larger DP-3C intercooler (cited at 45% more surface area) to feed the bigger 6.4L engine. If your car already has the 392 under the hood, this is the kit — the extra displacement and higher compression turn the same supercharger into meaningfully more power than the 5.7L combination makes.
The 6.4L 392 kit pairs the R2650 blower with Edelbrock's larger DP-3C air-to-water intercooler.
2009-2014 LX/LC 5.7L HEMI Kits (PN 1532 & 1534)
Owners of first-wave LX and LC HEMIs are not left out: Edelbrock offers two TVS 2300 kits for the 5.7L cars built before the 2015 refresh. These use the smaller 2,300cc Eaton rotor pack, but still deliver a huge jump over stock. The 2009-2010 kit (PN 1532) is Edelbrock-rated at 506 hp and 501 lb-ft at the flywheel, while the 2011-2014 kit (PN 1534) is rated at 471 RWHP and 475 RWTQ at the wheels. Both are frequently special-order items, so availability can vary — contact us to confirm before you plan the build.
The earlier LX/LC kits use the smaller 2,300cc TVS rotor pack.
TVS 2650 vs TVS 2300: Why the Newer Kits Make More
The R2650 rotor pack moves about 15% more air than the older TVS 2300 — 2,650cc versus 2,300cc, a 350cc jump in displacement per revolution. Per Eaton, the Gen VI R2650 flows roughly 25% more air at 18,000 rpm, runs about 4% more efficiently, and demands roughly 18% less parasitic drive power than the 2300 it replaced. The rotor twist also increased from 160° to 170°, which shortens the rotor lead and helps the blower hold efficiency at higher speeds and pressure ratios. Edelbrock designed the E-Force casing to accept either rotor pack, which is why the 2015-and-later HEMI kits stepped up to the bigger 2650 while the earlier cars kept the 2300.
The complete E-Force kit ships with the blower, air-to-water intercooler, injectors, and calibration.
5.7 vs 6.4: Which Edelbrock HEMI Supercharger Should You Buy?
Your engine decides the kit — you buy the E-Force that matches the HEMI already in your car, not the other way around. A 2015-2018 5.7L R/T uses the 5.7L kit (PN 1517) and lands at 483 RWHP; a 2015-2017 6.4L 392 Scat Pack or SRT uses the 6.4L kit (PN 15172) and lands at 572 RWHP. Both kits cost roughly the same, in the $10,800 to $11,000 range before install, and both use the identical R2650 blower and air-to-water intercooling. The 89-wheel-horsepower gap between them comes almost entirely from the 6.4L's extra displacement and higher stock output, not from a different supercharger.
If you are still shopping for the car itself and torn between an R/T and a Scat Pack, know that the 392 will always make more supercharged power for the same blower. But for a 5.7L owner, the 5.7L E-Force kit is one of the best horsepower-per-dollar upgrades on the market: it nearly doubles output over a naturally aspirated intake-and-exhaust package while keeping the car street-legal and warrantable. Both are far more streetable day to day than a comparable turbo build.
The 6.4L 392 kit is a bolt-on that retains the factory long-block and accessories.
Install, Tuning, Fuel & Warranty: What HEMI Owners Need to Know
Every E-Force HEMI kit is a true bolt-on: there are no internal engine modifications, the factory long-block and accessories stay in place, and the car keeps its air conditioning. It is a demanding DIY job — budget a full day of work, or around $1,000 for professional installation. On 2015-and-later Chrysler and Dodge HEMIs, the calibration is not a handheld flash: you mail your ECM to Edelbrock for modification, with a typical 8-10 business-day turnaround, so plan for the car to be down while the computer is out. Run with that Edelbrock calibration, the kit carries a CARB Executive Order and is legal in all 50 states; the exact E.O. number varies by application.
Fuel matters: these kits require 91-octane premium (or higher) at all times, and running lower octane voids warranty coverage. The 5.7L kit includes upgraded 46 lb/hr injectors to support the added airflow. On the warranty side, Edelbrock backs the kit for 3 years / 36,000 miles against defects, and 50-state-legal Stage 1 kits run with the correct calibration are eligible for an optional Limited Powertrain Warranty that pays up to $16,500 toward engine, transmission, and rear-axle repairs — unusually strong coverage for a power adder. Want more boost later? Smaller Competition pulleys raise it, but they require custom dyno tuning and forfeit the emissions-legal calibration. Explore the full lineup in our superchargers collection, or reach out to our Tampa team to match the right kit to your HEMI.
Frequently Asked Questions
How much horsepower does the Edelbrock supercharger add to a HEMI?
The Edelbrock E-Force takes a 2015-2018 5.7L HEMI from about 375 hp to a rated 483 RWHP and 450 RWTQ, and a 2015-2017 6.4L 392 from 485 hp to 572 RWHP and 531 RWTQ. Both figures are measured at the rear wheels on the stock engine.
Does the Edelbrock HEMI supercharger need a tune?
Yes. A calibration is mandatory and included with the "W/ Tune" kits. On 2015-and-later Chrysler and Dodge HEMIs you mail your ECM to Edelbrock for modification, with a typical 8-10 business-day turnaround — there is no handheld programmer for these applications.
Is the Edelbrock supercharger 50-state legal and will it pass emissions?
Yes, when run with the correct Edelbrock calibration. The kit carries a CARB Executive Order, which makes it smog-legal in all 50 states. The exact E.O. number depends on the specific application, so verify it against your part number.
Is it reliable on the stock HEMI bottom end?
Yes. The E-Force Stage 1 kits are designed to run on a completely stock long-block with no internal modifications, and Edelbrock backs them with a 3-year / 36,000-mile warranty plus an optional powertrain warranty up to $16,500. Many owners report trouble-free, high-mileage daily use.
Does the Edelbrock HEMI supercharger require premium fuel?
Yes — 91-octane premium or higher is required at all times. Running lower-octane fuel can cause damage and voids the warranty. The 5.7L kit includes upgraded 46 lb/hr injectors to support the added airflow.
Is the E-Force a Roots blower or a centrifugal supercharger?
It is a positive-displacement, Roots-type supercharger using an Eaton TVS rotor pack. That means instant boost and strong low-rpm torque the moment you open the throttle, rather than a centrifugal unit that builds boost as rpm climbs.
Can I make more boost with the Edelbrock kit later?
Yes. Smaller Competition pulleys (such as 3.25 in or 3.00 in) increase boost and power, but they require custom dyno tuning and forfeit the 50-state-legal Edelbrock calibration, so they are intended for off-road or track use.
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2 comments
Para
I’m agreeing with Earl, the stock motors alone are far more than the average “joe” driving on streets now! Y’all definitely have more money than brains with these kits! How TF did costs get the dam insane! I remember a base Vortex kit could be had for Abt $2900…. Gone are the budget hot rodding days!!!
Earl
Both of them are monsters, if you have no driver skills. Usually both of them engines alone, because you’ll be an accident waiting to happen.