I have some xpurt 2000cc injectors (same as injector dynamics. way over kill) I can swap. What size is going to be suitabe or can I run large injectors and just have them run at a real low percentage?

Mods: s5 tii motor swap
3" down pipe, de cat pipe, 2.25" y and big boy rear mufflers.
Greddy style front mount.
About to do t.b mod
Microtech w/4 x ignitor and bosch coils
No emissions
Stock s5 turbo w/ Ported wgs and 12psi aftermarket actuator.
Aem intank pump
Tomei reg
Green bros fuel rails
Aeromotive fuel filter
720cc injectors were for secondaries.
That's about it.
Do I just grab a second set of 720s or jump to 1000cc or 1600cc for future proofing. Or is it all a waste of time as im probably only pushing 250 hp or so if I'm lucky?
Getting it all ready to go for dyno tune soonish.

 

720 secondaries are more than capable of supporting an S5 stock turbo and will be a hell of a lot easier to tune on the Microtech than 1000, 1600, or 2000.

 

Thanks all I wanted to know. I'm sure there's probably a calculator somewhere but you need to know what sort of power you're making to guess fuel demands.

 

2000cc injectors on a rotary would be perfect if you wanted to run e85, but way overkill 500ish horse and below

 

Yeah I had them from a fuel system deal I bought when I was going to go bridgey turbo then I had a house and kid so that went out the window...for now

 

..Kid went out the window?....I hate it when that happens!

 

Yeah, half my money woes solved, out the window. Just the house to worry about. Haha

 

2nd Generation Fuel Calculator
It's old, but it should give you a rough idea.