Jetting for IAME Swift kart

About

Works out the carburation of entry-level IAME engines — Micro Swift, Mini Swift, X30 Water Swift, Gazelle, M1 Bambino and Puma 85 — with their Tillotson carburettor, from the real temperature, humidity, pressure and altitude, and from the fuel you use. WHY THIS APP • With the Tillotson HW-47A, the one on the Gazelle and the restricted Water Swift in the UK since 2021, and with the M1 Bambino's HS-325A, whose low-speed jet is fixed: the app says so instead of sending you to turn a screw that carburettor doesn't have. • Apple Watch app, widgets and Live Activity: your needles for right now on your wrist, on the lock screen and in the Dynamic Island. • Track mode: your carburation large and high contrast, to read it in full sun with your helmet on. • It alerts you when the weather changes enough to move the needles, using the hourly forecast too. • Needles in turns and minutes and in fractions of a turn, the way they are said in the paddock. • It takes your fuel into account: E10, E15, ethanol-free, CIK-FIA or race fuel. • 144 tracks in 22 countries with the altitude of the track itself, and it detects which one you are at. • A run logbook synced through iCloud, and your carburation shared with your mechanic as a link or a QR code, with no accounts. RESULTS How far the HIGH-SPEED NEEDLE and the LOW-SPEED NEEDLE are open, as a fraction of a turn and as turns and minutes. Plus the carburettor POP-OFF, the FUEL MIX with your fuel, the RESTRICTOR for its class, the POWER today's air is giving, the air density and the density altitude. And two fine adjustments, one per needle. ENGINES AND CARBURETTORS Micro Swift, Mini Swift, X30 Water Swift and X30 Water Swift Micro, Gazelle, M1 Bambino and Puma 85, with their Tillotsons: HW-31A, HW-47A, HL-394A and HL-394B, HS-323A and HS-325A, and HL-334B. Picking the engine sets its carburettor and its standard mix. FUEL 98 E5, E10, E15, ethanol-free, CIK-FIA, leaded race fuel, race E10, oxygenated, or your own with its stoichiometric ratio and density. The app tells you how many minutes the needle opens with yours. FUEL MIX Fuel and oil calculator: choose what you want to know — the oil, the fuel or the ratio — and the answer is shown large, in litres, millilitres, gallons and ounces, as a percentage and as 1:n. CARBURETTOR ICING From temperature, humidity and the chart civil aviation uses, the app warns you when there is a risk at full throttle, and Conditions tells you whether there is one at idle and on the grid. TRACK MODE AND TRACK DAY Your carburation full screen at maximum brightness, how much the density has changed since what you set, and how old the data is. During a track day the needles are on the lock screen, in the Dynamic Island and on your Apple Watch, and the app keeps an eye on the weather for you. Dark mode throughout. CONDITIONS From the nearest weather station or typed in by hand; it works the same without coverage. LOGBOOK Each run with its conditions and its carburation, what you actually set and how it went, lean, right or rich, low and high. It syncs through iCloud and exports to CSV. SHARING As an image card, as a link or as a QR code: your mechanic opens it in their app or, if they don't have it, in the browser. UNITS °C and °F, metres and feet, mb, hPa, mmHg and inHg, BAR and PSI. No ads, no accounts and no subscriptions. Pay once.