Blog

17 Feb 2026 / By Taz Quinn-Walshe

Where to buy custom axles and driveshafts?

Finding good companies that can actually deliver quality parts on time is sometimes harder than it should be, even when you're not bargain hunting. These driveshaft and axle suppliers are sourced from the HPA community.

17 Feb 2026 / By Taz Quinn-Walshe

ANYONE can do this | From Scan Files to Car Parts

17

A perfect scan of an imperfect part just gives you a perfectly imperfect copy. Here's the workflow that fixes that. 3D scanning doesn't just hand you a perfect CAD model - there's a crucial workflow in between that determines whether your scanned parts are actually usable.

12 Feb 2026 / By Brad Smith

155: Building The Worlds Best Sounding 5 Rotor [PODCAST]

12

David Mazzei may well have the best-sounding turbocharged rotary on the planet, but how he chased down that elusive F1 V10 sound with this masterpiece of an engine is somewhat unexpected. Rotary engines are often labelled as temperamental and unreliable, but David Mazzei of Formula Mazzei believes the opposite.

10 Feb 2026 / By Taz Quinn-Walshe

Adding Boost At The Twist Of A Dial

10

Open loop, closed loop, boost by RPM, CO2 control, and you'll never need to plug in a laptop. Accurate boost control is critical on any turbocharged engine, but not every build is suited to the expense and complexity of aftermarket ECU-based boost control.

03 Feb 2026 / By Taz Quinn-Walshe

What do you think about this engine swap? | V8 to 4 Rotor Holden

3

Holden and rotary engines have crossed paths before, but not like this. . . Fitting a 10,500 rpm 600hp peripheral ported 4 rotor into a Holden VL Commodore breaks more than a few cultural rules, and it does so in style.

29 Jan 2026 / By Taz Quinn-Walshe

How To Repair Fibreglass Like A PRO

29

Did you know most composite repairs, including fibreglass, FAIL simply because the damage was never fully removed?

Repairing damaged composite parts correctly is critical if you want strength, durability, and a professional finish.

29 Jan 2026 / By Brad Smith

154: 1000+ HP Diesels to 2JZ Weapons — Chuckles Garage Does It All [PODCAST]

29

Pikes Peak and land speed record racing couldn’t be more different when it comes to motorsport, and that’s exactly why Scott Birdsall from Chuckles Garage is so interesting.

27 Jan 2026 / By Taz Quinn-Walshe

Is this 10 year GC8 build OVERKILL, or actually just PERFECT?

27

Factory Subaru blocks can fail here, but does this build have all the right fixes?

Subaru engines are often criticised for reliability once boost and power increase, particularly when the factory cast block begins to separate under load.