right guys so far ive got the engine out, intake off, turbo off, clutch and flywheel off, just head to take off and bottom end to strip down. now ive looked at my injector and there yellow? which are these? 440 or 550?
thanks again wayne

 

They'll be 440's

 

440cc

 

thankyou

my mate has some 550 for sale, what differance would i feel? or is it just the flow rate and what hp they'll cope with?

 

assumnig you are on ther standard turbo then there is no need to up the injector size.. you can run the max boost the turbo will cope with on the 440cc once mapped etc..

Simon

 

Hi jgm, sorry to jump in! I have 440's and a td05 16g. Im looking to get the car mapped to run E85, and have a set of 550's to go in. You say the turbo above will max out on 440's, is this true of E85? Are you basing that for a td04?

Thanks,Mit

 

the OP car should have a vf23 iirc..

td05 16g will be more comfortable on 550cc.. you should just abotu be okay on 440cc but they tend to hold the boost higher in the rpm and therefore need more fuel and make in some cases a bit more power etc..
then if running e85 you will need a little extra so 550cc is ideal

 

so basically they would be ok for 350hp? what turbo would i have on mine? says on it

turbo spec vf... cant read the rest
serial no RHF5
also it says IHI turbo on the side? its a version 3/4 sti import wagon

 

yes

if my memory is correct it should be a vf23

 

what are these capible of??

 

also could some1 plz tell me what the gray injectors are?

 

Greys are 380's

 

thanks matey, what colour are the 550's

 

^^^ pink I think

 

They will be pink if they are denso 550cc injectors or yellow if they nismo 550cc injectors.

Subaru Impreza Nismo 555cc Injectors on eBay, also Injection Fuel Systems, Performance Tuning Parts, Car Tuning Styling, Cars, Parts Vehicles (end time 08-Jan-09 16:27:06 GMT)

Banny

 

confused now (i am at about the same stage as the op) he said he had yellow injectors and it was agreed they were 440's then someone says yellows can be nismo 550's, how can you tell the difference? is it as easy as the nismos will say nismo or nismo 550 on them?

cheers

 

Unless the car has been modified and remapped, you will defo have yellow 440cc injectors as the standard ecu will not run properly with the 550s.

The injectors plugs also need to be modified to fit nismo injectors and you need a injector fitting kit for them.

Banny

 

Hi, just to let you know ill have a 550cc pink injectors and a turbo off a WR1 .. for sale end of jan ...

Cheers

 

Injectors from a WR1 will not fit a classic as they are top feed and a classic has side feed injectors.

Banny

 

not sure now??? like said in have yellow injectors. not sure wha they are? the car has TSL manifold headers, APS cold air feed, APS 3" exhaust(including both decats) mapped my s.simpson at Gforce

 

do you know what turbo or power you are running? That would give an indication as to whether the injectors have been upgraded or not

 

sorry in jumping your answer but sti v4 is vf28, vf23 is for v3 and 22b
cheers all

 

Your car is a classic right?

If your car has yellow injectors and they are connected via standard wiring clips they will be 440's

As Simon says these should be fine for your turbo.

Given the fact that you are still on the standard turbo I cant see why they would have been upgraded so I'd say you were still on the standard 440's

 

thats ball i wanted tio know, thankyou the car has had a few tricky bits on it. was like that when i bought it? was estimated by some lads on here @ 320-340bhp

 

whats your spec?

 

spec as requested.....
1.group n disks
2.goodridge braided hose kit
3.silk pro race 2000 brake fluid
4.roger clack radiator cap 1.3 bar
5.ngk pfr7b plugs
6.cible driving light kit 130w
7.ferodo pro brake pads
8.geometry check + set up
9.eibach springs
10.tsl tubular manifold headers
11.ap 6 pot brake kit (from tsl? £1,518)
12.APS 3" exhaust system
13.APS cold air intake
14.APS high flow air cleaner? (what this about?)
15.AP racing organic clutch kit
16.RCM 5.4kg uprated flywheel kit
17.RCM alloy aux pulley kit
18.APS decat pipe
19.G force mapped by s. simpson
20.uprated coolant rad? ( from TSL?)
21.22b air flow meter? n/stk?
22.new dampers all round from RCM
23.adjustment to toe and front camber?
24.it had a full rebuild in 05
25.turbo has had all new seal/bearings

that all i can find out about the cars history? got 23k in reciepts