Right I posted a while ago asking about the difference between HKS and Apexi kits and decided to buy the Apexi one. This has been shipped but not turned up just yet... in the mean time i thought i'd take another look at the original post and also under the bonnet of the car.... now i'm slighty confused, i've ordered the correct kit for the car (92-96 apexi kit for GC8) and thats been confirmed by Anthony at Indigo-gt (cheers guys) but looking at the pics on the other post it looks different to my car.. am i being a numpty/idiot/car noob and if so can someone shed any light.
this is what i think it should be like;


and this is whats under my hood;




the thing im not sure about is the box by the turbo... how much of the original kit comes out, im sure it'll all be clear in the kit but just wanted to put my mind at rest... I've ordered this one;

Indigo-GT: Online

thanks
matt

 

Here's mine (93wrx)



the box next to the turbo gets removed

 

thanks myblackwrx.... i thought it might, just had a stupid/worrying moment

 

 

Ok so i've pretty much fitted the whole thing now.... apart from 1 little bit. the slim metal reducing collar which according to the jap instructions goes inside a hose near where your blue hose is in the picture above... my question is does it go completely in between the componants that this hose is joining together and is its only purpose to reduce the air flow through that pipe ?? its being a bstrd to get in there tbh...

 

Do you mean this





didn't get it fitted

 

yep thatll be the bugger.... what the heel does it do it can only be a reducer for the hose, but its like 1mm toooooo big and so is now half in and half out of the hose its meant to go inside.. so i take it its not really required ?

 

Well i've run mine for about 3 years without it and nothing has gone wrong (a few r/r days and driven 'vigourously')

 

cant say fairer than that then huh.... cheers

 

which pipe does this go on? can you explain a bit better please? just wondered cos this will reduce air flow if its a reducer. i made my own induction kit so just wondered how this apex one was sposed to work. mines very similar just made with my own piping. thanks

 

It goes in the pipe coming from the recirc valve going towards the intercooler.

 

why? that pipe is fine, the apex kit doesnt even change that end does it? maybe its to reduce the amount of air coming back into the air intake when it dumps to try and reduce the noise you get from the recirc when it dumps into a k&n filter?

 

I did not fit that bit on my Apexi kit either and I have had no problems at all with it.

 

The Apexi doesn't change that end but i would guess your assumption is correct as said haven't got it in mine and does give a fairly noticeable noise like a vta.

 

like i said earlier the instuctions just show a blown up diagram ( ill post a pic of that later if i get a chance), i did end up fitting mine as it was half in half out before i asked any questions then it was easier to finish off rather than try and remove.



its inside the hose thats the darkest one in the top right of the picture, (not the huge one on the intercooler) the one that looks like it goes under the IC.

Does still give a loud fluttering whoosh when changing gears,wasnt expecting it the first time i put my foot to the floor and changed, almost shat myself

 

you mean the one with the dump valve on it yeah? the round plastic thing with the red sticker on it. if so take it out again its bad. apex probably dont want people to think there car sounds chavy with a loud dump noise. so have tried to reduce the amount of air coming back through the inlet so its quieter. this is very bad and can cause major engine damage after long use. it wont let your boost out quickly enough and you will loose power and put strain on your turbo and even worse blow your engine. basically on standard boost you will have at a guess around 10psi pressure. you really wanna try and force all that down that tiny little hole every time you change gear??

 

not really... if thats the case, its coming out in the am,
why on earth would they bother to give that part if thats the end result...

I did notice that when i let the revs get almost to what i would consider the furthest id want to push before changing gear it did struggle and lurch me forward, so that must be the culprit.....

 

don't forget this kit also fits the Legacy as well so it may be for that

 

ill pull it out in a moment, slighty confused as someone else i know had the same car and was certain it was best shoved in, ill be having words.

To woody, just to be sure its inside the one with the rather red arrow pointing at it.

 

ahhh thats not connected to the dump valve then no. the dump valve is the circle plastic thing with the red sticker on it. it has one large hose going to it from your air inlet pipe (looks like it goes through it) and goes to your intercooler. the other pipe is on top and is your wastegate pipe. it isnt either of these from that arrow.

from that pic i cant actually make out where its going to or from? can you trace it and find out?? its not even part of the air filter. it looks like an oil pipe to your turbo or possible coolent. you deffornatly dont want to stop that from flowing as your turbo will get really hot.

are you certain the diagram means that pipe? i presumed you meant the dump valve pipe as its part of the air filter. it runs the dumped air back in.

i will look on my car in the morning and see if i have the same hose running over the top like that.

 

the pipe is actually connected to the valve.
the dump valve has the one to the left of the valve, and then the smaller one on top and this one with the arrow is the other side of the dump valve..

 

youll have to excuse the dodgy edited picture but im stuck at work so only got ms paint



should show the pipes route...

 

This is the only pipe it can go into (big black 1 in the middle)

 

perfect-o-mondo

 

ok cool so just to clarify. the blue hose is the wastegate, its connected to your standard dump valve at the top. your dump valve has a large black pipe which leads from intercooler to air inlet pipe. you have put the metal thingy in the pipe going from intercooler to dump vavle to air inlet pipe.

take it out lol. when you change gear you get all your pressure come rushing down this pipe. like when people have a vent to atmosphere dump valve and you get the tssshhh noise. this is basically 10psi or more being shuved down that pipe. if you make the hole smaller it will restrict the flow and cause lots of wear and loss of power and huge amount of strain on your turbo.

 

and i take it thats why im getting the rollercoaster ride of the car throwing me forward when i let the revs get rather higher than they should/would normally... ?

 

yeah lol sounds like that could be the problem. take it that problem has only just started yeah. your turbo cant release any pressure cos the holes too small. so its building up then letting some go then you put your foot back down and its just going mad. take it out and it should run fine.

 

ill be wandering off downstaris in about 15 minutes to start the removal... nice midnight mission.

 

haha ok cool should only take 2 minutes unless its stuck in there now. which end did you stick it in? intercooler or air inlet? if its in the air inlet then you could take that pipe off and push from other side if its being annoying. intercooler side is a hard pipe i think its kinda stuck on though.

 

nah i can get the whole hose out - once i move a few bits, the horrid metal collar is actually in teh centre of the hose and teh componants actually butt up against it at either end...so hammer the bugger out with the blunt end of a screwdriver.

either that of ill be out there for ages and end up getting stuck here with no pipe to replace the one i've obliterated.