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Discussion Starter · #1 ·
Hi guys,

This has prob been mentioned somewhere before but here goes anyways.
Ive done a few mods to my MY00 WRX and was wondering what size injectors i should be running, at the moment they are std factory ones (which i dont know what size these are even).
Mods are:

Standalone ECU (Autronic)
Walbro high volume fuel pump
VF34 turbo upgrade
3 inch turbo back exhaust
Front mount intercooler
Blow off valve

Car has been dyno'ed at 270hp

Any input would be appreciated
 

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Injector capacity between 650cc/min and 1000cc/min is a good fit for your modifications. Be aware of latency and charge time.

I will also inject my suggestions (pun intended):

1. Drop the BoV and reinstall an OEM BPV
2. Trade the FMIC for a good quality TMIC

Both modifications are hurting your vehicle's transient response. The car will perform better and be more enjoyable with my suggestions above. I see you are located in Australia -- added benefit that ProcessWest (which is an extremely reputable brand) is practically in your backyard. I don't know what they have to offer for GC Imprezas.
 

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Discussion Starter · #5 ·
Not really looking at changing the FMIC due to how the front spoiler had to be modified for the piping to fit. Would look out of sorts with it removed. Plus a decent TMIC over here is $1000+ excluding labour.

Just looking at getting the right injectors for it at the moment.
Ive spoken to a couple of "dyno guys" here and they said prob 550cc ones are plenty. I noticed zax you say 650-1000cc range is good for me.
 
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