V3 STI Air flow meter

[dan]

I just noticed I have a purple air flow meter in my V3 STI. I used the search function and it seems I should have a orange stickered air flow meter??? Mind you I have only driven my STI about 20kms slowly without boosting so not too sure how well it runs. Will a purple AFM make my car run not as good as it should? I have yellow injectors..

[smokn4]

i though the purple was for twin turbs ???

my bg5 twin turb has a purple 1

[Guest]

What diameter is the outlet of the AFM ?

[smokn4]

someone problly taxed the orange one out of it just before they sold it

[MercuryFree]

 smokn4 said:

i though the purple was for twin turbs ???

my bg5 twin turb has a purple 1

Have a purple in my v3 wrx

[dan]

My car was stolen before I got it and the previous owner put it back together with what he could find I imagine. Hence why it has a V2 bonnet and bumper. So a V3 STI should have a orange AFM and not a purple? And will any orange do or is there a particular one?

[Guest]

Sti v3 should have orange afm and its 90mm - largest subaru afm

So your probably going to need a bigger connecting pipe to the turbo inlet pipe as well

AFAIK the GTB of similar age has the same orange afm

AFAIK there are no other orange afms.

[kamineko]

post your car's applied model code. v3 wagons and autos got the (not orange) afm

also the engine type while your there

codes can be found on stamped plate, under bonnet, passenger side

[funkytown]

 kamineko said:

post your car's applied model code. v3 wagons and autos got the (not orange) afm

wait on nick - what v3 wagons do you mean..? My V3 STI Gf8 got orange afm

the purple AFM i've seen on Foresters with phase 2 engines, by no means the only model im sure.

[kamineko]

easy tiger! i am talking about wrx's here. i know yours IS an sti. just trying to work his out.

[funkytown]

 kamineko said:

easy tiger! i am talking about wrx's here. i know yours IS an sti. just trying to work his out.

;D

just clarifying to the OP, it wasnt clear from your post

[Guest]

Looking at his car it seems a collection of parts from older models

Dash looks v3 sti 8000rpm redline, manifold has some red left on it, looks like it has the air temperature sensor as well.

Best to also check what ecu it has in it.

[marc]

yeah id go with the above first, check what ECU is in it as I havent seen a non orange afm paired with yelow inj in v3/4 wrx/sti before and should most definitly have an orange afm if its on the standard STI ecu and has yellows...

[dan]

The ECU it has is a 3S

What is this out of?

[Guest]

http://www.clubsub.org.nz/forum/index.php/topic,9493.0.html

Appears to be a WRX ecu

[dan]

Yeah, an auto V3 WRX GC8. Damn, now I need to buy the right ECU!

[kamineko]

geez that 3S must be running weird on yellow injectors..

you can use a 1S or 6S to improve. they use the yellows and require the orange AFM

after that i would find a V3 sti intercooler, with the alloy y pipe and silicon joiner.

you will also require the larger rubber joiner (90mm) between the AFM and intake (and top half of 90mm factory airbox if your staying with factory setup)