Hello Everyone.
Ive got a Blob eye 2003 wrx.....
I want to upgrade the injectors on it....
What would be the best and whats the difference between say...440 and 550 etc....
Can you help.
If I need any mods with the upgrade.
Thanks
Gandy

 

Firstly, what's your bhp target?

 

What mods are on the car already? and as Joz has asked what are you trying to achieve?

Injectors alone will not do anything.

 

Well I want around 300 if poss.
Planning td05 turbo and intercooler
Got at the moment PPP on the car....
Does this help?

 

It helps in as much as it tells us, with the best will in the world, that you're very new to all this.

Some comments:

1. Even the smallest TD05 turbo is a 330bhp plus unit. If you want "around 300bhp", you would be better going for a smaller turbo like the TD04 Hybrid that will give you better throttle response and flexibility. Either way, changing the turbo will require an immediate remap.

2. If you want "around 300", your existing injectors may just about cut it; if you want significantly more than that, you'll need bigger ones. However, if and when you do change them you will again need an immediate remap, so there's no point changing the injectors in isolation. If you're going to change them you need to do it in concert with all the other bits and have them all mapped in at the same time.

3. Again, if you want "around 300", there's no need to change the intercooler and very little to be gained in doing so. However if you're going for significantly more than this number, the newage STi topmount IC is well worth considering.

4. If you currently have a PPP car, you will effectively lose it if you carry out the modifications you're considering. As such there's a potential cost for you to consider as far as resale value is concerned. Some find it economically preferable to sell the PPP ECU, replace it with a standard one and have that reprogrammed instead. The end result will be exactly the same.

It'd help us to help you if we knew exactly what your power goal is and/or how much you have to spend to achieve it. Also don't forget that a lardy WRX will need some assistance in the handling and braking departments before you go making it too much quicker!