Opinions on upgrading injectors from brown tops

[brad]

See my mods below. I'm looking to support 300-350hp and maintain good drivability and idle. More street than strip. I don't know whether to skip over the 48 lb/hr injectors (FID 500) and go with the 69 lb/hr injectors (FID 780). Thanks.



2.3L Turbo Coupe with stock brown tops

Stinger PiMPx

255lph Walbro

Gnari manifold

Stinger FMIC

Garrett T3/T4 50 trim .63 AR

Stinger 3 inch downpipe and dual 2.5 Magnaflows

External wastegate

Head, cam, and intake are all stock

[Stinger]

The 500's would be borderline too small at stock fuel pressure and the high side of your power goal (assuming that's power at the wheels) so you'd either be looking at the 780's, or the 60lb Deka injectors. Both will be fine as far as idle/drivability is concerned.

[brad]

Thanks! What base pressure should I run the 780's at? I'm using the Kirban regulator if that matters.

[Stinger]

Standard pressure for rating injector flow is 43.5psi.