Thread: Injector sizes

Looking at changing the injectors as part of my cam/intake mods. I already completed Megasquirt ECU install with 72mm plenum and 45mm trumpets on a 5.0 TVR litre engine. I am currently running the standard lucas green belt D1830 injectors whose duty cycle is well into the 90s during hard acceleration.

Any tips on which replacement injectors to use is appreciated, I am looking at abt 25lb injectors... however in looking at some candidates, is injector length an issue?? The Lucas injectors (right injector in pic) don't protrude into the air flow and are approx 5mm shorter than the manifold base. Is this an issue if an injector nozzle (left injector in pic)extends into the intake air flow?.

Another good candidate is the injectors from a 4cylinder Magna.

Cheap to source, and more than enough flow for a 5.0L supercharged engine.