b4 rebuild i ran 15psi all day everyday and previous owner ran 17psi to run a 12.90

i rebuilt and added \/ \/

remapped ecu/3inch zorst/t28bb/fresh rebuild with forgies/metal headgasket 1.3mm/cooler

and im runnig 16psi feels strong aiming for 20/22 give or take with a re-tune

i ran open boost one night went to 20psi (probally further as my guage only goes to 20 ha ha) but that was enuff for me to pop a headgasket. thats was on the stock motor b4 rebuild with a t25g

i would stay on or below 15psi and i would do a compression test first if wildely uneven keep the boost down..

Quote:

I've heard GTR ones are the go, or a cheaper alternative is VR4 galant 450CC/Min low impedance injectors

VR4s use a resistor pack to have the ECU see them as high impedance. I put high impedance 550's out of a 13BT into my old VR4 & bypassed the resistors, so I assume you could do similar for a CA18 ECU? Tho if they are low impedance they would be direct swap IIRC