Noon Engineering

It's hard to sum up Le Mans Classic in one post. The amount of 2am engine swaps, police escorts, victories, retirements, noise, heat, exhaustion and elation in one weekend is unmatched.

I'm proud to have been part of the Front Row Racing team for a few days; they're an impressively talented lot.

Here's to a quiet couple of weeks in the workshop…

A bucket list car to work on. We supplied a new radio loom for McLaren F1 GTR chassis 13R, which is running at Le Mans Classic this weekend.

Lovely to see this R390 GT1 project from last year on display at

Our web shop has been updated with the Plex PDM-13, in stock and in the UK.

https://noon.engineering/shop

You know we're busy when the social media posts are thin on the ground. Alongside the usual projects going on, the past few months have been non-stop with prep for the big ticket historic races.

After wiring up a veritable fleet of historic F1 cars with data loggers for Monaco, we're now just polishing off some last bits to a truckful or three of LMPs ahead of Le Mans Classic. Yesterday was spent sweating at Donington Park with Front Row Racing, working on this beautiful R8 and listening to the Lola/Aston's sublime V12.

Introducing the PLEX PDM-13® — the smallest solid-state Power Distribution Module in motorsport.

Solid-state PDMs aren't a new category. MoTeC, Link, ECUMASTER, HP Electrtonik and others have been shipping them for years, and they've genuinely changed how serious race vehicles are wired. We're not first to this conversation — and we won't pretend otherwise. What we've spent a long time on is what we'd do differently when we joined it.

The PDM-13 is the answer.

The first thing that makes it different is size. 13 high-side outputs, 100 amps of continuous current, in a 215-gram CNC-machined aluminium enclosure measuring 54 × 80 × 34 millimetres. There is no smaller pro-level PDM in the motorsport segment — at any output level. That isn't a vanity spec. It changes what's possible at the installation level. A single PDM-13 can manage the entire electrical system of a motorcycle, where larger PDMs simply don't fit. Across a car or prototype, the small footprint makes distributed multi-unit setups practical: power delivered locally to each zone of the vehicle, harness runs cut dramatically, fault isolation built into the architecture itself. The distributed approach has always been the strongest argument for solid-state power distribution — the PDM-13's size makes it more accessible than it has ever been.

Compact doesn't mean compromised. Advanced thermal engineering maintains consistent performance under load, and vibration-tolerant construction ensures stable operation even in the most demanding environments. The IP67 sealing, CNC-machined enclosure, and operating range from −40 °C to +85 °C are the visible part of that engineering. The thermal and mechanical design behind them is what makes the rest of the spec sheet meaningful.

The second thing is the software. Every output is configurable down to the detail — current limits, electronic fusing, PWM frequency, soft-start ramps, inrush handling, reset behaviour. CAN-FD for high-speed communication. Built-in functional modules for left/right/hazard flashers and multi-speed wipers with stop-position control. An onboard calculation engine for executing logic on the device itself. A preloaded library of CAN protocol templates for major aftermarket ECUs and OEM platforms.

What's distinctive isn't any one of those features. It's that they all configure through PLEX Device Manager 2.0 — the same unified software that drives our dash displays, knock detection systems and boost controllers. One toolchain across the entire range. The teams already running PLEX hardware get the PDM-13 with no new learning curve. Teams new to PLEX get a software environment they can use across every product they buy from us, now and later.

That integration is the part of the PDM-13 we're most proud of. It's the thing that's hardest to deliver, the thing competitors with broader product ranges struggle with, and the thing that we think makes this PDM worth the time we took to bring it to market.

Now shipping worldwide.
Available also on select authorised resellers.

Full specs and ordering: https://loom.ly/pnt_KAg

Another little job on this Jaguar R3 today, adapting the fuel wiring from a Bosch 044 to a brushless Protec pump with an external controller.

Power distribution comes in all shapes, sizes, capabilities and price points.

Cosworth Centaurus 5 If you have to ask…

Ecumaster PMU-16 AS: Probably the most flexible option on the market and makes its direct competition look a little silly.

MoTeC PDM15/30 (printed mockup): Battle tested, dependable and featherweight.

Plex Tuning PDM-13 (printed mockup): Newly released and just adorably compact.