ive got a 2.5l sti block with forge pistons and rods im going to stick on my 2.0l heads! what size of injectors will i need? will the car run with standard 2.0 wrx injectors and ecu for runnin in? its a 1995 wrx

 

I run mine on the yellow 440's that were standard for my MY97WRX, thats with a TD05 16G at 1.45 bar. I do have an uprated fuel pump and an adjustable fule pressure regulator though. I also ran my car in on the standard ECU before switching to a PowerFC.

 

Mines a MY99, bought it with a 2.5 fitted, running std injectors and ecu.

But had to have it re-built and with increased spec and TD05 20G, was told by Zen and Mocom, that the ecu would not be able to control it that well, plus the injectors would not be able to flow sufficent fuel. Now have Apexi PC, with the original injectors modified by Laterial Performance to 740 or 800.

 

and it goes like stink!

 

Not yet! It's back with Zak next week to have the boost creep resolved, then it should be possible to map it to it's full potential!