Hello ppl,

Do i need to upgrade my injectors/fuel pump on 95 wrx ?
i have following :
AVC-r 1.2 bar
HKS Bov/ induction kit/ plugs
Exedy clutch/flywheel

Thanx in advance for your help

ZED

 

im no expert but i would of thought with that spec you would be ok with your original injectors

 

Why not spend the money on a Knocklink and AFR meter?
Then you'll know for definite that your engine is doing okay and whether or not you need to upgrade your fuelling? Or take it somewhere and get them to pop a wideband on it and some det cans and see how they think it's doing?

Certainly some bigger injectors and a fuel pump will open the door to more power, but you're going to need a remap to go with it, and by implication you're really going to need a better intercooler too, to get the most from spending all that money.

 

If it is a 95 wrx saloon you are running on a td05 so 1.2 bar is about the max for 380cc injectors at standard fuel pressure most recommend 1.1 bar as max to be safe without monitoring devices ,if it is a wagon then you have a td04 so you may be able to run a little more either way i would get a knocklink and afr for safety sake as all cars are different and there are no definates they will also warn you if something is on its way out eg maff or fuel pump as you will see different readings , just compare the cost of a knocklink £122 group buy , Dawes afr £40 , to the cost and hassel of a replacement engine £1500 or more ! Also the standard map sensor max out at 1.2 bar so you may have no fuel cut for protection not to sure about the AVC-R workings also imports are set for 100 ron fuel and if you have not adjusted your fueling or knock settings eg scooby ecu would do this for you , then you are probably getting detonation at this boost and would advise turning boost back to maybe under a 1 bar until you can monitor for detonation .
just my advise , I also have a 93 wrx with scoobyecu fitted and hks fuel cut raiser ,with a dawes fitted controling boost to 1.2 bar but have a knocklink fitted and afr .

Mark

 

Also the standard intercooler is crap i have a 99-00 intercooler fitted as well !

hope this helps

Mark

 

thanks 4 all the advice - will look into the matter more actively now !

cheers once again,

ZED