Bosch injector 1200cc, 53mm (EV14S), 4pcs flow matched

Bosch Injector 1200cc, 53mm (EV14S) — 4Pcs Flow Matched

The Bosch EV14S 1200cc fuel injector is a high-performance, precision-characterised fuel injector supplied through Nuke Performance’s injector programme. At 1200cc/min (measured at 3 bar reference fuel pressure), this injector is suited to heavily turbocharged and supercharged engines targeting 500–750 hp on petrol, high-power E85 builds in the 380–520 hp range, and race engines demanding high-duty-cycle injectors for sustained full-power operation. The EV14 series represents Bosch’s current-generation performance injector platform, carrying the same engineering heritage as OEM Bosch direct-fit injectors but optimised for aftermarket motorsport engine management applications across a broad range of flow rates.

What Is the Bosch EV14 Injector?

The Bosch EV14 is a solenoid-operated, top-feed fuel injector using Bosch’s latest pintle-and-disc atomisation technology. Every EV14 comes supplied with a Bosch Injector Data File (IDF) — a complete characterisation dataset including static flow rate, short pulse width behaviour, dead time across voltage, and linearisation data — that is compatible with all major motorsport ECU platforms including MoTec, Haltech, Link, Syvecs, AEM, and Adaptronic. This eliminates the custom calibration work required with uncharacterised injectors and gives tuners confidence that the ECU’s injector model accurately reflects real-world injector behaviour from idle to full power.

EV14S Body — 53mm Medium-Body Format

The EV14S body format uses a 53mm O-ring-to-tip length, suited to a range of aftermarket fuel rail applications dimensioned for the intermediate 53mm body length — check your specific Nuke Performance fuel rail specification to confirm EV14S socket compatibility. Confirm your fuel rail’s injector socket depth before ordering — installing a medium-body injector in a socket dimensioned for a different body length results in incorrect injector tip projection into the intake port, which compromises spray targeting and mixture formation at all engine speeds.

Injector Sizing Guide — 1200cc at 3 Bar

The 1200cc/min flow rate at 3 bar is suited to heavily turbocharged and supercharged engines targeting 500–750 hp on petrol, high-power E85 builds in the 380–520 hp range, and race engines demanding high-duty-cycle injectors for sustained full-power operation. As a general rule of thumb, naturally aspirated petrol engines require approximately 0.5–0.6 cc/min of injector flow per horsepower; turbocharged engines require 0.6–0.7 cc/min per horsepower; and E85 builds require approximately 1.5–1.7× the petrol flow rate due to ethanol’s lower stoichiometric energy density. These figures are starting estimates — confirm final injector sizing with your ECU tuner based on target power, fuel type, and base fuel pressure. Arctic Performance Parts can advise on injector selection for common Scandinavian motorsport engine builds.

Flow-Matched Set — Why It Matters for Engine Tuning

This is a 4pcs flow matched of Bosch EV14S 1200cc injectors, individually flow-tested and matched to within ±1–2% of one another across the complete set. Flow-matched injectors are the professional specification for motorsport engine management builds because injector-to-injector flow variation creates cylinder-to-cylinder air-fuel ratio discrepancies that most ECU platforms cannot individually correct without per-cylinder trim capability. When all injectors in a set flow to within ±2% of each other, the tuner can apply a single injector characterisation across all cylinders with confidence that the calibrated AFR is actually delivered uniformly — particularly important on turbocharged engines where a single lean cylinder at peak power carries a significant risk of detonation damage.

Fuel Compatibility

Bosch EV14 injectors are compatible with petrol (RON 95/98/100), race fuels, E85 ethanol blend, and selected methanol blends. The internal seals and materials are rated for the full range of motorsport fuels commonly used in competition across Norway, Sweden, and Denmark — including the increasing proportion of race series running high-ethanol fuels for environmental compliance.

Quality and Availability at Arctic Performance Parts

Arctic Performance Parts is the Norwegian-based specialist for Nuke Performance products, serving motorsport builders and performance enthusiasts across Norway, Sweden, and Denmark. Founded from Wankel Service AS — where the owner has rebuilt and tuned rotary and performance engines since 2003 — Arctic Performance Parts brings over 23 years of hands-on engineering experience to every product recommendation. Most Nuke Performance items are stocked for prompt despatch, with a supplier lead time of 1–2 weeks for extended quantities.