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 |   |   |  Quick Tech: Edelbrock E-Force Miata ND Install
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Quick Tech: Edelbrock E-Force Miata ND Install

May the E-force be with you!

Mark Gearhart
Jul 5, 2018
Photographer: Adam Davis

Mazda is now on the fourth generation of its iconic sports car, the MX-5. Every generation, the automaker has upped the ante in terms of melding track performance, creature comforts, and a reasonable price tag. While we all wish Miatas still retained their sub-$14,000 price tag, the reality is any vehicle has likely doubled in price from when it was produced almost three decades ago. Still, with a base price of $25,000, the Miata is one helluva car for the money.

The NA Miata’s anemic 1.6-liter inline-4 made a whopping 114 horsepower and less than triple digits to the wheels. By 2006, the third-gen. variant came with a 2.0-liter that pumped out 167hp. The freshest version (the ND)? A mere 155 horsepower. Mazda’s take on the power reduction for the fourth-gen. SKYACTIV 2.0-liter came at a compromise for weight reduction. Shedding over 250 pounds would give a power to weight ratio that trumped the outgoing NC, but however you want to put it, less horsepower is still less horsepower.

There’s no arguing the Miata is one of the best driver’s cars on the planet. But what if you’re craving 35 percent more throw from your gas pedal? Welp, that’s where Edelbrock’s E-force supercharger comes in.

Gone are the days of hacking up your car to install a power adder. Edelbrock has done the math and designed a kit for the fourth-gen. Miata that’s fully bolt on and only requires a simple modification of two factory panels.

Edelbrock’s E-Force kit has been designed from the ground-up and utilizes the Eaton R900 TVS rotor assembly for maximum efficiency in a compact package. As with all E-Force superchargers, this system features an efficient high-flow inlet configuration that results in a shorter, less restrictive intake path for improved airflow and performance. To cool the incoming air, is a large air-to-water intercooler and heat exchanger. All of these features help the E-Force deliver dramatically improved performance with a smooth linear power curve. Also, like Edelbrock’s Scion FR-S/Toyota 86 kit, no fuel system upgrades are required.

Features Include:
• Compact design fits under the stock hood
• Supplied with pre-formed hoses for ease of installation - no trimming needed
• Bolt-on installation
• Self-contained oil system with 100,000 mile service interval (no drilling or plumbing required)
• Includes an EcuTek ProECU Programming Kit with E-Force tune
• Integrated bypass valve for minimal decrease in fuel economy
• CARB Legal

002 Edelbrock ND Eforce supercharger Photo 2/14   |   The Edelbrock E-Force ND Miata supercharger is a work of art. A R900 Eaton TVS rotor group is cooled by a built-in air-to-water intercooler.
003 Edelbrock ND Eforce badge Photo 3/14   |   Edelbrock casts all their supercharger housings in-house, which allows them to produce high quality, OEM-like supercharger systems.
004 Edelbrock ND Eforce 2017 MX 5 Artic White Photo 4/14   |   Our specimen was a 2017 Club in Artic White. Modifications include 16x8-inch Volk TE37 Sonics, Cusco coilovers, Cusco strut tower brace, and a GReddy Supreme SP muffler.
005 Edelbrock ND Eforce Greddy muffler Photo 5/14   |   Edelbrock has certified the GReddy Supreme SP muffler as a system that can be run with the E-force. We encountered a harmonics issue with another exhaust system and needed to swap to the SP.
006 Edelbrock ND Eforce unboxing Photo 6/14   |   Everything you need to get the job done comes in one box. Edelbrock includes full color, step-by-step instructions. No fuel system modifications are required for this install.
007 Edelbrock ND Eforce remove bumper Photo 7/14   |   We turned to Yoshi at Neptune Speed to help us with the installation. The hardest part of the install (which isn’t that hard) was removing the front bumper. The lower and wheel splash shields must be removed to access the bumper hardware.
008 Edelbrock ND Eforce airbox Photo 8/14   |   Part of the requirements to make this kit 50-state legal is retaining the factory air box, though we will be ditching the sound tube. The throttle body will make the transfer, but the factory intake manifold will be ditched.
009 Edelbrock ND Eforce intercooler installed Photo 9/14   |   The runners with intercooler core is bolted in place first. The lines with the tubing protectors are the feed and return lines for the water-to-air intercooler. There’s a specific torque sequence when mounting this portion to the cylinder head that’s highlighted in the instructions. Once done, the supercharger will mount to the front side of the intercooler with the supplied supporting brackets.
010 Edelbrock ND Eforce heat exchanger Photo 10/14   |   Edelbrock’s high-flow heat exchanger mounts in front of the radiator with new brackets. The side radiator shroud will need to be trimmed slightly to allow for the water pump’s hose clearance.
011 Edelbrock ND Eforce coolant fill Photo 11/14   |   The intercooler’s water tank will use normal coolant and matches perfectly with the rest of the engine bay. All the wiring is plug-and-play for the intercooler and uses the EVAP harness to trigger the water pump on, which will happen with the key set to the run position.
012 Edelbrock ND Eforce OE appearance Photo 12/14   |   A few pre-molded hoses and an air intake later, viola! She’s done. We love the OE appearance of the Edelbrock E-force and how all the componentry is hidden out of sight.
013 Edelbrock ND Eforce EO certificate Photo 13/14   |   Wear that EO certification with pride! Next time a police officer asks you to pop your hood, don’t worry!
014 Edelbrock ND Eforce dyno Photo 14/14   |   With the ECUTek tune loaded in our ND, we hit the dyno. In the end, we produced 182.6hp and 175.1 lb-ft of torque. That’s an increase of 42.6hp and 34.6 lb-ft. If you have a state that has 93 octane, expect 192-198hp and over 200hp to the wheels on a custom tune! Needless to say we can’t wait to test out our newfound power at the next track day!


GReddy Performance Products
Irvine, CA 92618
Huntington Beach, CA 92647
Torrance, CA 90503
NepTune Speed
By Mark Gearhart
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