NITROHEAD

iTrader: (2)

Hi,
I have an 03 OZ rally with the RRM intercooled kit. I also have RRM bored fuel rail,RRM light weight pully, SAFC2 installed and full exhaust. My question is i want to get some more power by adding larger injectors. How much work would it be to install 440cc 04 WRX injectors? Are they a direct fit? What parts would i need?

I also have a RRM header not installed yet which will be installed with the injectors.

My last question is has any one used the twin throttle body kit? I was thinking i would do this instead of the ported intake mandifold. Any thoughts?

And for controlling my boost any thoughts or experinces with what you guys have used.
Thanks
Nick

ambystom01

iTrader: (7)

How do you not have the header installed when you're turboed?
The twin throttle body kit is a scam and moreover would be hard as hell to tune for.
The boost pressure should be controlled by the wastegate spring. You could buy a boost controller as well.
As for the WRX injectors question, do a search on here, I know some members have them. You don't get more power by just adding injectors, you need to supply more air and tune for it.

NITROHEAD

iTrader: (2)

What is a safe boost? I run 6psi now. But i only drive my car in the summer and it sits all winter. I wanted to run 10psi because i only put like 4000 Miles on my car a year at the most now since i have another truck.
Shouldi get a 10psi spring?
Or should i get a whole electronic boost controller?
thanks

rabbit61319

iTrader: (13)

i didn't know you can run rrm kit without rrm hearder.....
and get a manual boost controller
with bigger injectors and some tuning...the car should run fine.
i personally don't prefer using afc to tune the car~just my opinion!

ambystom01

iTrader: (7)

Read the FAQ in my sig regarding safe boost levels. On a completely stock motor the max is 12 but that's pushing it and requires other mods.

ThunderOZ

iTrader: (26)

RRM designed the turbo kit (the first one not the new one with the turbo manifold) to be used with the stock exhaust manifold... I have heard nothing but bad things about the twin throttle body manifold... I would just get the stock intake mani ported (could get it done for less than $100) and then the throttle body...

cincy

you dont move enough air to warrent a larger TB, let alone 2 of them...LOL

kungfugirl

iTrader: (4)

i have 330cc injectors and a ecu cable.

for sale if u need to upgrade.

RarStlzLncr

iTrader: (8)

i heard those injectors are a direct fit. don't boost over 7 psi without a tune and not over 8-9 without internals or boom...

ambystom01

iTrader: (7)

You can boost 10 without internals.

cincy

those will be plenty for stock internals. They are good for ~230whp