had my wrx dyno'd and the injector duty cycle was 97% got the chance of some440's from an sti, & would it make any difference?.can i run these without any probs?(straight swap) i need adapter collers it make them fit can these be bought off the shelf?.

 

You'll need to get the car mapped for the injectors.
You can be adapters off the shelf but i don't know where but i'm sure someone on here does.

 

How do you know your runnin 97% what ECU is it running and at what AFR.

What year is the WRX... I shall assume it's Pre96 as you mention you need adaptors.

It depends what STi. If their off a 97/98 STi then they should fit.
If they are off a later car you will need to get adaptors to convert them from Phase 2 to Pahse 1fuel rails. You can get these from Mark at Lateral or Paul at Zen.
If their off a 93-96 STi then there not 440's.

 

I was running 380's originally and had them running in the high 90's on full mapped boost. A switch to 440's and a remap brought them down to the low 80's so plenty more headroom and a wise move.

 

Had the car dyno'd on Thursday, duty cycle was 96.7% @430.7bhp 16.1psi AFR was 11.4 Inlet temps 20 deg.
It an ecu from a type ra, with a Mines chip. which is not mappable.
The injectors are phase 2.
Hope this info helps.

I'm doing some Carbon fibre work for a mate & he is offering the injectors as payment.

 

430bhp?

 

should that of been 330, not 430. You won't get 430 on 380's

440's will go in with adaptors, from the people I have descibed above.

The ECU will need sorting though to run with the 440's correctley.
The ECU is remappable if the mines chip is taken out and an alternative method put in. Although I think mines tend to solder their chips in, so you may be better off picking up a cheap 2nd hand ECU and getting that one sorted.

PM me if you want to know more, as I can't comment much more then the above until my 'Authorised Advertising contract' gets sorted out.

 

Type error, yes 330 although i whish it was 430, lol. thanks for the advise Scott, will pm you when i've made my mind up. As i was thinking of getting a mappable ecu(apexi or similar), with 550's & 20g, i just thought the 440's would be better than the 380's,for the time being, but looks like its a bit of hassle to sort.
Will let you know mate.
Mark.