I'm converting my 12a to a custom fuel injection system. And I would like to purchase my fuel injectors. How would I go about figureing out the most amount of fuel my 12a will need? Under boost? Later I plan on gettin a 13b, eventualy boosted as well and i'd like to keep the same FI's through out.

I have a throttle body out of a v6 92 cutlas sierra with a MAF. Are they're problems with MAF's under boost? The maf will be right before the throttle body since its bolted to it, and both will be after the turbo.

I plan on using 3 fuel injectors, my manifold design has 3 pipes coming around, the 2 center ports are shared. How critical is the pipe diameter and length? Does it change or go away under boost? Since that is my final goal I would like to ignore the runner size if possible.

Any suggestions will be apreciated. Thanks.

 

you will need about 1.5l/min of fuel capacity if you're n/a and 2.5l/min if turbo.

those are minimum figures.

You can put in as many or as few injectors as you want as long as it adds up to that figure.

 

I'd go with a 4 injector setup. Because the single injector will fire too much. It'll shoot fuel in the rotor needed, and build up fuel in the rotor not needing it. I'd go with near stock runner lengths. It'll add velocity for more low end in N/A trim, and will add a little bit for a boosted engine while not under boost, IE Taking off like a normal person (Who does that?) at a stop light.