Alpha injection engineering

Made in the USA.
Race proven.

Precision-characterized injectors for high-output engines where fueling margin matters. Every set is tested dynamically across a range of pulse widths and battery voltages from 6 to 20 V to define flow rate, offset (dead time) and low-pulse-width behavior. Sets are matched for flow consistency and repeatability, and each one ships with a serialized flow sheet documenting static and dynamic flow for every injector. ECU-formatted characterization data is available for download. Rated at 3 bar. 750cc to 2600cc.

Precision-characterized, flow matched sets with serialized flow data. 750cc to 2600cc.

Select your platformDownload injector dataInjector seal kits
Alpha Injection fuel injector
PULSE WIDTH4.0 ms
RATED AT3 bar / 43.5 psi
FLOW SHEETSerialized per injector
Shop by platform

Select your platform.

Choose your vehicle platform to see every flow rate, price and configuration available for it.

Honda / AcuraK-Series, FK8 Civic Type R750–2600cc · from $399 MitsubishiEvo, 4G63750–2600cc · from $399 Mazda750–2600cc · from $199 SubaruWRX / STI750–2600cc · from $399 Nissan750–2600cc · from $399 Toyota750–2600cc · from $399 VW / Audi750–2600cc · from $399 BMW750–2600cc · from $399 ChevroletLS, LT, Gen V750–2600cc · from $799 FordCoyote, EcoBoost, Modular750–2600cc · from $399 DodgeHEMI 5.7 / 6.4 / 6.2750–2600cc · from $399 VolvoS60 / S70 and up, 5-cyl750–2600cc · from $499 LamborghiniHuracan, Gallardo V101000–2600cc · from $1,099 Fuel SystemRails, filters, seals, servicefrom $12 Wiring and ConnectorsPigtails and plug adaptersfrom $35
Made in the USAMatched sets with serialized flow sheets
6 to 20 VOffset characterized across battery voltage
SerializedStatic and dynamic flow for every injector
750–2600ccRated at 3 bar (43.5 psi)
Customer builds

Numbers that speak.

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1700 WHP
1700 WHPToyota Supra · Ai-2600cc
1500 WHP
1500 WHPToyota Supra · Ai-2600cc
1300 WHP
1300 WHPXFWD · dyno proven
1200 WHP
1200 WHP8x Ai-2200cc · MoTeC
Evo
EvoAi-2600cc
FK8 Type R
FK8 Type RAi-1430cc .DI
Real bench data

Every set ships with its numbers.

Dead time across battery voltage, flow at pressure and the short pulse adder, measured on our bench and formatted for your ECU.

1,381 cc/minFlow at 43.5 psi
0.425 msMin effective pulse width
1.218 msDead time at 12 V, 3 bar
Download injector data
Ai-1300cc · dead time vs voltage3 bar 6 bar
10.07.55.02.50.06V8V10V12V14V16V18V
Dead time, ms
Voltage8V10V12V14V16V
3 bar2.8351.7061.2180.9270.829
6 bar3.9632.3281.6951.3171.153
Flow at 43.5 psi1,381.1 cc/min · 134.4 lb/hr

From the Ai-1300cc Gen 2 data file, bench data January 2026.

Characterization data for 25+ ECU platforms.
Injector data library

Characterization data for 25+ ECU platforms.

Offset, flow, short-pulse and pressure tables formatted for the ECU you tune on, available for download for every Alpha injector.

Open injector data
Alpha injection engineering

Made in
the USA.

Alpha injectors are made in the USA and ship as matched sets, with a serialized flow sheet for every injector. The people who match your set are the same people who answer your call.

Select specialty models are made in Germany.
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