I was looking to see if anyone would recommend anything different then what I currently have for injectors before I retune my car.

I currently have 440cc injetors that came with my greddy emange ultimate

My current car setup:
2006 Scion tc 5 speed
Greddy Bolt On Turbo Kit
Greddy Emanage Ultimate that came w/ 440cc injectors
HKS Axelback exhaust
Megan Racing S-Pipe & Midpipe
Agency Power Crank Pully
Exedy Stage 1 Clutch
Fidanza Lightweight Flywheel
NGK Iridium Sparkplugs 1 stage colder

Looking to purchase these before I get retuned:
bigger injectors if needed
walbro 255lph fuel pump
descendant fuel rail

 

descendent has a deal going on...500 bucks for their fuel rail, rc injectors in any size, and the rc harness'...id suggest getting 550's....but then again i just bought 750's haha

 

It depends on how much boost your running......

9.5lbs and below..... 550cc
10+ lbs ....... 650cc+

 

I plan to be pushing around 8 psi, but i was looking to get 750cc injectors. Would that matter that the injectors are that big even if I get it retuned?

 

IMO.... you dont need 750s for only 8psi. I run 8psi, and I have 550cc. My fuel map is nearly all negatives up until 5k at full boost. So what Im saying is, theres no need to go that high for only 8lbs.... youll never have the injectors spraying at a normal level. Theyll always be way negative. It doesnt really matter, but its not necessary.

If you plan to build the motor and run 12-14lbs, then yea go for the 750s. Other than that, I dont see the point.

 

get thats 750 and ill trade ya my 550s :D

 

i'm running 550cc and 13 psi on a big turbo! 60-1! and still not maxing them out. if you plan on going higher then go for 750cc if not 550cc lol i'll trade you!!! and pitch money in!!! hahaha (ace)

 

hmm maybe ill just stick with the 440 cc's then i currently have, cause that sounds like it will work fine

 

I agree with that

 

i run 700CC's on 12psi. the down side to the 700's is you have to get a new fuel pump or fuel pressure falls on its face. honestly if you plan on 8 psi you are fine without a pump or injectors.

 

I'm on 11.5PSI on 550cc injectors, stock rail and stock pump...and I'm nowhere near max duty cycle.

 

^^^ damn good to know! I already got the fuel pump ordered, but I am gonna hold off on the fuel rail and injectors until after I get retuned, and see if the tuner recommends it. Thank you guys for all your input and help!!