fuel injector size question

[tsi2fly1991]

This is my question im getting ready to do a maft blow thru set up so im going to up grade injectors My setup is walbro 255lph hp fuel pump 16g turbo 2.5"downpipe 3" cat back exhaust no cat and a mbc i not planing on running more than 18lbs of boost what size injector would you guys get I was thinking 550s but i dont know what kind of boost
i can run with them can someone help please

tsi2fly

 

[Dieselboy]

550cc's are ideal for a 16G setup. Unless you plan on going bigger than a 16G later on, get the 550cc's.

 

[tsi2fly1991]

How much boost can I run on 550s and a 255lph hp pump?

 

[95TSiNewbie]

Do you ever plan on getting a bigger turbo??? I got 660's with my BigT-28 because I will never hit the limit of the injectors with that turbo.... Some people say its hard to tune 660's... but i found it easier then the stock 450's. I got an excel tuning sheet that is amazing.. dont remeber where from though. You plug in the fuel pump size, injectors and fuel pressure and it tells you what psi you can run, based on I/C efficency and what not. Great little guide.

 

[Dieselboy]

How much boost can I run on 550s and a 255lph hp pump?

21-23psi is right around peak efficiency of the S16G, you can get there with 550cc's.

 

[PaleDSM]

This EXACT same question has been asked twice already in the past few days. If you look for those threads you can get others opinions on the situation without waiting for more replies.