fuel management

[Rich Druash]

Iv'e got a red top s13 in my car and I'm having a lot of trouble getting good advice on fuel management. Do the jim wolf tech ecu's and Empalthy ecu's work well. Has anyone used them? What size injectors do I need to run. will 550s or 720s be better for a horsepower goal around 320rwhp.

[Angel]

For your goal 550's z32 maf and Enthalpy tune would be the way to go. You would have a little headroom and Enthalpy's tunes are pretty hard to fault.