How to Choose a Clutch for Street, Track Days, Time Trial and Racing

The process of taking a production car and converting it for use in racing or high-performance street driving, or perhaps something that can do...

The Science Behind Trackside Support

Hawk Performance has a responsibility to its clients. Whether it’s an IMSA team or a group of Spec E30 racers, the obligation to its...

Maintaining Fire Systems For Proper Operation

A lot of car-fire videos have been racing across the internet lately. In the case of a drift car at HyperFest and a Toyota...

Project Spec E46: Rear Suspension and Other Details

Before reassembling the rear subframe on a Spec E46, you must weld in a rear subframe reinforcement kit. I sourced mine from Condor Speed...

How to Build a Spec3 From a Donor

In the interest of furthering renewed interest in Spec3, the series leader and series director put together a constructors guide for those interested in...

Replacing a Miata Fuel Pump Sock

We all have read time and again that oil is the lifeblood of an engine, but without fuel, the engine doesn’t run, and if...

Building a Privateer GT3 Nissan 370Z

Back in 2018, Valkyrie Autosport’s 370Z wasn’t quite ready for ES. It was still stuck in E0, where it had demonstrated dominant pace on...

Project Spec E46: Rear Subframe, Differential and Fuel Tank

With the cage freshly in the car and the car up on jack stands for the first of a thousand times, it’s starting to...

Beating Exhaust Heat

The factory downpipe from the manifold on NA and NB Mazda Miatas is wrapped with shielding and packed with insulation to keep the heat...

Bracing a Miata Differential

If you want to be competitive in Spec Miata, you need the 4.30:1 Torsen or Mazda Motorsports differential. Most racers simply find a factory...

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