Case study · LS engine builds & dyno tuning · Greenacre
A Greenacre workshop that has been building LS engines since 1990, online for the first time. The site lets the dyno numbers do the selling: every published result in one place, quoted exactly as the workshop posted it.
Sam's Performance has been building LS engines for more than thirty years, but the work only lived in Facebook posts and the odd Street Machine feature. Nobody searching "LS engine builder Sydney" or "Harrop supercharger fitting Sydney" could find a page that answered them.
The workshop's best proof, real dyno numbers on real customer cars, was spread across years of posts. Every word, build and photo on the new site was drawn from that public record and checked against it.
This is a business people ring rather than one they fill in forms for, so the site is built to turn a phone visit into a call.
Red and black is the language of race cars and dyno cells, so the site reads as a performance workshop before a word is read. It is dark by default, which makes the photography of polished engine parts glow.
#0b0b0d
Background
Near-black page, also the browser theme colour #17171c
Surface
Cards and section bands #e10600
Racing red
Buttons, the hero stripe and the dyno bars #ff2b1c
Hot red
Headline accent words and tick icons #ff5a4e
Red for text
Links and red text on dark, light enough to pass AA #ffb22e
Amber
Focus ring and engine-dyno figures #c9ccd2
Steel
Secondary metal tones #f2f2f4
Ink
Body text Racing red does not pass contrast as text on near-black, so a lighter red does that job. Amber marks engine-dyno figures on the dyno board, so flywheel numbers are never confused with at-the-wheels numbers.
Headings
Saira
A squared technical sans at weight 800, italic and uppercase with tight leading: how race liveries and dyno sheets look, with forward lean and no novelty "speed" font. One variable file, preloaded.
Body text
System UI
Long build write-ups stay easy to read and cost no download.
An Arial Bold fallback with adjusted metrics stands in until Saira arrives, so nothing moves when it does.
Angled cut corners on buttons and tags like number boards and decals, a subtle carbon-fibre weave from layered gradients, and a red racing stripe down the hero. No image downloads.
Every published result ranked as horizontal power bars, skewed like a tacho sweep: red for rear-wheel figures, amber for the engine dyno, with the fuel (98 or E85) beside each number.
16 customer cars at launch, each with the combination, the figure exactly as published, a spec list, a gallery, its rank on the dyno board with its neighbours, and links to the same model.
A badge in the header works out from the published hours whether the workshop is open, with the plain hours as the fallback without JavaScript.
A sticky bottom bar that leads with "Call now", a call button in the header, and heroes sized to the visible screen so the first screen is never hidden behind browser chrome.
AA-checked text colours, an amber focus ring visible on every surface, and a full-screen phone menu that traps focus and closes on Escape.
Hand-written PHP 8.2, server-rendered, with no CMS, database, framework or packages. Services, builds, dyno figures, FAQs and redirects live in plain data files, so adding a build is one entry and every page, schema node and llms.txt line follows from it.
About 4 KB of critical CSS inline so the header, logo and hero paint correctly at once; one self-hosted variable font, preloaded.
Every image as AVIF and WebP at several widths with a JPEG fallback and an accurate sizes attribute; the hero photo loads at high priority and everything else lazily.
Engines on stands, forged internals, blowers, cars on the hub dyno: each cropped, named descriptively, given real alt text and stripped of location data.
A phone number or an email is enough. Spam is stopped by a signed timestamp, a honeypot, an origin check, a link filter and a rate limit, with no CAPTCHA.
A strict Content Security Policy allowing only the site's own assets, HSTS and the usual hardening. Probes for WordPress login pages return 410 Gone.
An automated crawl tests every page, link, redirect and the form before release.
Every claim on the site is a published fact, which is exactly what search engines and AI assistants look for.
Each build page is a CreativeWork about a Car with its publish date, and the dyno board is an ItemList, so the results are machine-readable as well as visible.
A general FAQ page plus service FAQs, each marked up once, with answers that name the workshop and the place so they can be quoted on their own.
Every build page carries at least three paragraphs of real copy, because short templated pages tend to sit unindexed.
A sitemap with a real last-modified date per page, llms.txt with every service and published dyno result, and IndexNow on every release for Bing, ChatGPT search and Copilot.
{
"@context": "https://schema.org",
"@graph": [
{ "@type": "AutoRepair" },
{ "@type": "Service" },
{ "@type": "CreativeWork" },
{ "@type": "Car" },
{ "@type": "ItemList" },
{ "@type": "FAQPage" },
{ "@type": "BreadcrumbList" }
]
}Lighthouse figures: mobile, live home page, measured 19 October 2026. Page and result counts are from the live sitemap and llms.txt.
Everything came from the workshop's own public record: years of Facebook posts, its photos and the Street Machine features. NGN turned those into a page per customer build and per service, quoting every power figure exactly as Sam's Performance published it and never rounding up.
It is a ranked list of every dyno result the workshop has published, drawn as power bars. Rear-wheel figures are red and engine-dyno figures are amber, with the fuel (98 or E85) beside each number, and each bar links to its build page where there is one.
People search for specific combinations, such as a VF SS with a Harrop supercharger or an LSA cam package, and a page per build can answer that search directly. Each build page names the combination and the published figure, shows where it ranks on the dyno board and links to similar builds, so it has enough real content to be indexed.
Google does not allow a business to mark up its own reviews for star snippets, and doing it anyway risks a penalty. The site states its Facebook recommendations in plain text, links to the reviews, and lets the published dyno results do the persuading.
On phones a sticky bar keeps "Call now" on every screen, the header carries a call button, and an "Open now" badge works out whether the workshop is open in Sydney time. The enquiry form accepts either a phone number or an email, because many customers prefer to be called back.
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