Hello, I recently purchased my first Impreza and while looking around it i noticed something odd. It seems that someone has welded shut an oil feed pipe from the left hand cylinder head, why has this been done ?

 

its not welded!! lol
its a blanking plug where the recirculating dump valve pipe should go.

 

i dont mean the blue blanking plug, i mean the thin metal pipe below it

 

looks like a AVCS feed pipe from the newage?!

 

it looks like someone has stuck a old brake pipe into a vacuum hose, trace the vacuum hose to see where it goes.

 

Looks non-standard fit, whatever it is. Matt, it would help if you told us what model your car is. As Techno Brat says it looks a bit like an AVCS feed, but it can't be (theoretically) because you appear to have a classic not a newage. There are (or shouldn't be) any oil feed pipes on the left-hand head either.

Is it possible that the pipe that looks like a vacuum hose is connected to one of the takeoffs on the inlet manifold - and that the metal pipe has been shoved in to temporarily block it? If so, chances are that it once supplied a boost gauge.

 

Just to confirm we are all looking at the same pipe its the metal pipe in the centre of the screen. It runs from the front of the left hand cylinder head. If it is a AVCS pipe why is it there, any ideas ?

 

i was wondering if it had newage sti heads on but as you say not on the left hand side?! weird- cant quie make out what it goes into!

 

sorry its a JDM type r version 4

 

thats a bit clearer, is it bolted to the head with a banjo?

 

yes

 

Can you show us a pic of where it's attached to the head? On the face of it, it shouldn't be there.

 

I will try to take some better pics tomorrow and check if the right bank is the same. thanks for the help guys

 

Looks like the previous owner has fitted a Legacy Twin Turbo engine into the car instead of the correct Type R engine.
The picture shows the oil feed for the redundant left hand turbo and if you look down the back of the cylinder head, you should see an oil return pipe for the turbo coming out the back of the head.

Mick

 

looks like you have a injector cap bolt missing too!

 

if u look down the side of the head in that pic(bottom middle) u can see the turbo return pipe welded to so i think it must be twin tub heads

 

Sounds about right. Guess someone just went for the cheap bodge option.

 

O dear it looks like ive been conned, is the legacy twin turbo engine any good compared to the type r spec engine ? and thanks for the help

 

its ok in the twin turbo but no good in yours as the type r has forged pistons better heads/cams and higher rev limit, cant you take it back?

 

Bought it a month ago off a guy who lives in staffordshire, he seemed like a genuine guy and was also a subaru enthusiast. It was a private sale so i dont think iam going to have much luck getting a refund.

 

i don't know if there is much more you can do mate then mate as the car with that engine isn't worth as much as a original one when you come to sell it, how much did you pay if don't mind me asking? and was it off of ebay?

 

I payed £4050 and yes it was advertised on ebay by a guy called will.
I phoned him and told him that it dosnt have a type r spec engine and he didnt give a monkeys. He said mabe they just put legacy heads on it and the rest is type r spec. He also said it produced 330 bhp lol i'm absolutley gutted.

 

Choked for you mate,, a std legacy gt is 260 bhp,the gtb i had produces 280 bhp thats with 2 turbos & revs to 7500 rpm.Type r as said above stronger block and revs to 8250. Do you/can you see what turbo is fitted .

 

Is it possible that someone has just changed the heads ? are legacy heads different from type r spec heads ?
have not checked the turbo spec yet.

 

That's bad news Matt.

He doesn't sound much like an 'enthusiast' to me.

 

Did you check the engine number against the HPi report ?

 

Only checked the engine number on the VIN Plate, does anybody know where the engine number is printed on the block ?

 

The Leggy GTB bottom end is the same as the V3/V4 Sti's(forged pistons) but the GT isnt so its pot luck with what you have. The real issue is the lack of Type R heads because that would Pi$$ me off more.

 

I'm guessing the type r heads flow better, have bigger valves and different combustion chamber size ?

 

............and cams