ok... im sitting here pondering.. (at work) i have a 3rd bran new 550 sec inj. and was wondering, as apposed to going to bigger sec's what if i added the third stock 550? would this work well?
no ps, no emis, no omp, 3" exhaust, whalbro, fmic, 11psi, custom intake...

 

i cant be much help but that japanese have been pulling crap like this for years look up "additional injector controllers"

 

please shut me down and light me on fire with flames if this is stupid.. im bringin up an old post here.. instead of bigger sec inject's anyone ever add a 3rd stock 550 sec?

 

It's done commonly.

The worst example I saw as a few additional injectors hooked up to a pressure switch. When boost reached a certain level, the switch kicked the injectors wide open and hosed fuel into the engine. Didn't work very well.

You can parallel a set of smaller injectors with the stock secondaries, but that's hard to control. You essentially need to tune by swapping out different tertiary injectors.

By far the best way is with a commercial AIC (Additional Injector Controller).