renegado

Hi im installing and apexi power fc with a boost control kit but also i will buy a set of injectors, the tuning shop asked me wich injectors i will prefer 800cc 660cc or 550cc as i think every one knows my car is an impreza wrx gf8 1996 that will have a turbo swap with a ihi vf22 and has a full exhaust system with a 3" down pipe an up-pipe and also will have installed a stage 2 exedy clutch kit with a fidanza light weight aluminum flywheel, if is for me i will go with the 660cc because is a intermedium, but the 800cc will be good for the 1/4 mile run with the power fc tuned just for that and have other tuning for the street daily drive, what you guys think?

dynamix

iTrader: (3)

550's should be sufficient for that turbo.

Changing injectors will not create extra power on their own - they will only supply enough fuel for the air going into the engine. The VF22 would be unlikely to be able to outdo a set of 550's without killing your gearbox first.

harvey

iTrader: (48)

Yellow 440cc injectors will run to about 330 bhp but more with a fuel pressure regulator and lift in fuel pressure. 440cc with FPR will probably max out your VF22.
550cc with no FPR are good for near to 400 bhp.
You must have SIDE FEED injectors and NOT top feed.
Bigger injectors can only make more power if you do the mods to allow more power eg bigger turbo, better headers and exhaust system.

harvey

iTrader: (48)

PS. I should have said that "Pinks" are New Age STi injectors which are top feed.