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Injector Size

Tommyd

Well-known member
Joined
Jan 18, 2013
Messages
106
Location
Fishkill, NY
So I bought 610 with the intention of building it up, and well the time finally came. I was buying a gt30 turbo/manifold/ect. off Raif, who you know has built some crazy sh*t, and well ended up just taking a built longblock back home with me instead of just the turbo. I have link v3 already, and my only concern is the injectors. Currently there are 750's in the fuel rail, but I can only imagine what my IDC would be if I do anything over 17psi. I'm a recently converted Subie person and still new to 4g63s, so any feed back would be nice while everything is still torn apart.
 

G

Staff member
Joined
Feb 24, 2004
Messages
8,896
Location
zompton
''
 
Last edited:

rdomeck

Well-known member
Joined
Jun 1, 2011
Messages
620
Location
Indianapolis, In.
Good to see another Indy guy on here. I don't have any advice on injector size.... If you need any fab work let me know. I'm downtown. My website click
 

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,972
Location
Yakima, WA
I run 950's with my FP3052. My injector duty cycles are pretty low because I pull fuel when my meth injection kit kicks in. I see about 58% at the top of the revs at WOT. I don't see why you couldn't run the same, or possibly a hair bigger for added headroom.
 

DynastyLCD

Well-known member
Joined
May 12, 2006
Messages
761
Location
Harwinton, CT
Raif does build some nasty cars for sure /ubbthreads/images/graemlins/devil.gif

what turbo do you plan on running? and what fuel do you plan on using? i prefer to have room to grow with injectors, i originally bought 1200's for my 30r setup. its good for what i need it to do - pump gas only, and enough fuel for 35+ PSI of boost. i feel that i'll upgrade if i run any larger of a turbo setup than a 3076.
 

matt92vr4

Well-known member
Joined
Oct 3, 2010
Messages
676
Location
Venice, FL
One nice thing about these cars is drivability with big injectors. I run 1000cc's and it drives as well as stock. Last tank was 26mpg. Don't be afraid to go a little big.
 

thecman02

Well-known member
Joined
Nov 3, 2007
Messages
917
Location
Kalamazoo,MI
If you plan on running some e85 I'd look into something 1000cc+ range. The high impedance 1100cc's from FIC are good for small turbos. Just need to make sure you get a beefy fuel pump like a wally 450. If your IDC's get high just dial in some more fuel pressure till you get where you want to be. I have trouble recommending anything bigger than that. I daily drive on some 2150's. If your tune isn't perfect your afr's can swing almost a point if your VE or global is off by more then 1%.
 

Tommyd

Well-known member
Joined
Jan 18, 2013
Messages
106
Location
Fishkill, NY
Thanks for the feedback so far. Just to clarify, I'll be running a GT3076r, the one thing I was afraid to do was go too high and ruin driveability. I currently run a Wally255 fuel pump and thinking of upgrading to the 450 if needed. I was planning on running 93 75% of the time. Where I work has a station that sells 110 at the pump so I plan on running that every now and again and having a second map for that. FIC claims the 750s are good for 500whp, but the last thing I want to do is see 100% IDC on a low boost map. So what does everyone think about FIC 1150s?
 
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