How Long Does EMMA Judging Actually Take Per Car?

"How long is my slot?" is one of the most common questions I get from first-time EMMA competitors, and the honest answer is: it depends, and it's not written down anywhere as a fixed number. What I can do is walk you through what actually happens in front of the judges and why the clock moves differently for different cars and classes.

There's no official "minutes per car" in the rulebook

The EMMA rulebook sets out judging criteria in detail, but it doesn't publish a fixed judging duration per vehicle — because it can't. A tidy Entry-class hatchback with a simple source unit and no presentation component moves through a lot faster than an Expert-class build with a full written or spoken presentation. Organisers build the day's running order around expected class mix, number of entries and how many judging panels are running, not a one-size-fits-all timer.

What happens during a typical SQ slot

For Sound Quality, a judging slot generally covers:

• A quick install/safety check before you're waved in — is everything secured, fused and matching what's on your documentation.
• A listening session against reference tracks, where the judge is scoring tonal balance, imaging and soundstage from the evaluation seat.
• Scoresheet completion — the judge is writing notes and numbers as they go, not just listening.
• For classes that require it, a presentation component (more on that below).

None of that happens instantly, and a careful judge won't rush the listening portion just to keep the queue moving.

Why class matters more than most people expect

This is where the real variation comes from. EMMA's Sound Quality classes step up in what they require:

• E (Entry) and S (Skilled) — no presentation is required, so these slots are mostly install check plus listening.
• M (Master) — documentation is required, which adds a few minutes of the judge cross-checking your paperwork against the car.
• X (Expert) — this is the class where time genuinely stretches out. The rulebook allows competitors in X Limited up to 7 minutes for their presentation, and X Unlimited competitors up to 15 minutes, on top of the listening and install assessment.

If you're building toward X class specifically because of the design and presentation scoring, budget your competition day time accordingly — see how the classes break down on our EMMA classes explained page.

What actually slows a slot down

In my experience judging, the things that blow out a slot are rarely the rulebook's fault:

• The car isn't warmed up or tuned when it's called forward, so there's a delay while the competitor scrambles.
• A rattle or buzz shows up mid-track and the judge has to pause, isolate it, and re-listen.
• Paperwork doesn't match the car, which means extra time reconciling value declarations or component lists — see our page on the paperwork mistakes first-time competitors make for how to avoid this entirely.
• Too many people around the car during judging. There are sensible limits on who can be present — read who you can bring into judging with you before the day.

How to plan around it

Don't build your day around an assumed number of minutes — build it around being ready the moment you're called. Have the car tuned and idling in the queue, your documentation in hand, and know what your scoresheet will look like once it comes back (our guide to reading your EMMA scoresheet covers exactly what judges are marking). For the bigger picture of how the whole day is structured around these slots, see how EMMA competition day is run.

If you're unsure how your specific class or event is likely to run on the day, get in touch — I'm happy to talk through what to expect before you're standing in the queue.

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