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Old 03-28-2009, 03:42 AM   #1
subaru fan
Scooby Specialist
 
Member#: 127910
Join Date: Oct 2006
Chapter/Region: SCIC
Location: corona C.A
Vehicle:
04 STI silver
Silver

Default quick question on my vf 39 build

I have a 04 sti

flashed with cobs stage 2 map

mods
cobb catted down pipe
gready ti c cat back
cobb intake heat box is coming
turbo xs top mount


now in the future i wana put a 20 g on but for now i plan on getting my tune with these parts on it that i have waiting to be installed for my tune

44mm ewg
port and polish and heat warped exhaust manifold
tgv deleats
255 lph fuel pump
prodrive boost Solenoid
gimmick turbo inlet
then my tune

Now my question is.

are bigger fuel injectors such as 850cc really worth the extra 500 bucks for my vf39 or should i hold out on them until i put the 20g on as well?


hold out on the injectors?

or get some and put them on before my tune?
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Old 03-30-2009, 08:28 PM   #2
Scoooooootles
Scooby Newbie
 
Member#: 191791
Join Date: Oct 2008
Chapter/Region: NWIC
Location: Vancouver, WA
Vehicle:
2006 Impreza WRX
WRB

Default

Wait for the 20G.
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Old 03-30-2009, 08:33 PM   #3
hustleshark206
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Member#: 182227
Join Date: Jun 2008
Chapter/Region: NWIC
Location: seattle, WA/ Jackson WY
Vehicle:
2000 MPS Built RS
1991 Leggy Turbo EJ22t

Default

wait for 20g. You will have to tune after the new turbo anyways.
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Old 03-30-2009, 11:53 PM   #4
Team Scream
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Member#: 121532
Join Date: Jul 2006
Chapter/Region: SCIC
Vehicle:
2006 FXT/STi 6MT
01 Aerosim GC8 Coupe

Default

I think both of teh replies above are incorrect.
I say the only way to know if your injectors will be sufficient is the day you get tuned and log idc's you will discover in short order if your injectors are up to the task.
I have a 39 on my car right now and at peak load I hit 90% idc.
That is on a conservative 10.5:1 AFR at the same load however.
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