Leroy Engineering

29/10/2026

No, it's not a Miata. But when we were asked to do this build, we couldn't say no!

1970 MGB-GT, powered by an LS3, 6-speed transmission and a Ford 8.8 rear end. Track ready, street legal, and an amazing head turner!

Custom suspension, wide body kit, side pipes, big brakes- it's a monster in a tiny package.

Check out this and other builds on our website!

26/10/2026

Rescued from a rusty demise and restored to it's original glory! This car lived much of it's life up north and had the wounds to show it! Stripped to the shell, and given a second lease on life!
This build was an OEM+ restoration, with lost of little custom touches added.
Check out the full build and video on our website!

23/10/2026

Final photoshoot for our #15 LMC car. 2026 is coming to a close, and it's going to be a busy winter! New engine, new livery, new interior, new suspension updates... and a car number change :)

Lots of exciting updates to come! This car has been an amazing workhorse- driven and enjoyed by so many people over the years! And it's time for a full refresh!

13/10/2026

So the time has come for a new top! But there are so many choices! What's the best option for you?

We've created the soft top selection guide just for you! To help narrow down the options and get you rolling!

Check out our website for this and more tech tips!

06/10/2026

Introducing the Leroy Engineering NA/NB Miata Sway Bar!

This sway bar was designed specifically for autocross and aggressive street use. With 7 different stiffness adjustments, covering the full range of all other bars on the market. Works with OEM and AWR sway bar mounts.

Bar is 1-1/8" Diameter tubular.

This bar was designed to give a full range of adjustability, from the OE bar to stiffer than the next stiffest bar on the market today. The arm design gives more room for larger tires without interfering- even at full lock. The bar also mounts closer to the engine than the OE location, allowing more clearance for larger radiators and fans.

Kit Includes:

Sway bar
Mounting bushings
Adapter plates
All needed hardware
Polyurethane bushing grease


Sway bar Spring Rates. (Measured on an NB chassis with reinforcement blocks and SuperPro end links.)

1-1: 495 lbs/in

1-2: 465 lbs/in

2-2: 426 lbs/in

2-3: 387 lbs/in

3-3: 370 lbs/in

3-4: 360 lbs/in

4-4: 350 lbs/in

https://leroyengineering.com/products/leroy-engineering-na-nb-front-sway-bar?_pos=6&_fid=efa6c32c8&_ss=c

02/10/2026

At long last... it's happening!
Plans are now underway to launch the new LMC2 series for 2027! Rules, schedule, and more details to come.

Series Technical Rules
https://leroyengineering.com/pages/leroy-miata-cup-2025-rules-and-technical-data

Series FB Group
https://www.facebook.com/share/g/1FGdMN4L5a/

24/09/2026

Looking to add a livery for 2027? Get in touch with us to schedule your livery design and application! We're currently scheduling our winter projects, and would love to get you on the books to be ready for next season!

We offer Miata livery design, creation and installation at our shop in Chardon Ohio.

www.leroyengineering.com

19/09/2026

Short Shifter Kits are back in stock!!!

A complete kit with everything you need to improve the feel of your shifter! We all run these kits in our cars here at Leroy. and love the feel! This kit is built around the ISR shift lever, but with Mazda OEM bushings that we have found improve the feel.

17/09/2026

Ready to build your engine? We are starting a multi-part blog series on how to build your entire BP engine. From selecting the right tools, parts and planning your build, to assembly steps, torque specs and troubleshooting. Parts 1 and 2 are live now on our website!

Engine Disassembly It’s important when disassembling your engine to document everything. Error on the side of over-documentation. Bag and tag each piece as it comes off, and take pictures as you do. We recommend using a parts sorter for all the hardware, and label it as the motor is disassembled.

09/09/2026

Is your Miata in need of some upgrades? Maybe those "upgrades" means just making it run again? If so, you're in the right place!

Leroy Engineering is your one-stop shop for parts, service, upgrades and more!

We specialize in:
- alignments
- engine rebuilds
- graphics and vinyl
- basic maintenance and trouble shooting
- suspension and chassis upgrades
- interiors, sound systems and cosmetics
- soft tops
- enclosed transport (keep your pride and joy safe and out of the snow!)
- clutch replacements
- diff rebuilds

Give us a call to get your project scheduled!

www.leroyengineering.com