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Old 02-13-2012, 05:34 PM   #2576
WhiteBgeye02
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i can easily make harness's. just were does everyone buy pins?
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Old 02-13-2012, 05:35 PM   #2577
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azscooby, I tried to PM you but got bounced back; your inbox is full!
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Old 02-13-2012, 08:00 PM   #2578
azscooby
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White,
IAPerformance sells the pins as well, or go to a junk yard, apparently a 90's Honda will also have similar ecu pins.

My inbox has been emptied.
And just to clarify - I am not Clark Turner (AZScoobie) - He's the guy that has years of experience with these engines. I made my username before I knew who the "real" AZScoobie was.
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Old 02-13-2012, 08:04 PM   #2579
azscooby
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Are you guys pulling the screens from the AVCS and the turbo feed lines?

Seems like that would be a good idea since oil may have had a chance to gunk up...
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Old 02-13-2012, 08:34 PM   #2580
WRick
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Quote:
Originally Posted by azscooby View Post
Are you guys pulling the screens from the AVCS and the turbo feed lines?

Seems like that would be a good idea since oil may have had a chance to gunk up...
Haven't pulled mine, but cleaned thoroughly. If you are regular on oil changes, I wouldn't worry about them.

Now, I have a question of my own.

Sorta thinking I'm going to run out of gas on my setup.

I pulled quite a few parts from my past build, but it's still a daily driver ( and will see cold weather... )

Stock pink injectors ( are those 565's ? )
FP TD05H-18g , ported
APS 70 mm intake
up-pipe/catless downpipe ( I kept the stock rear exhaust, cops ticket us like hell here )
the obvious walbro


Do I need to upgrade the injectors ? I know it's a longshot, just trying to get opinions. The car will be used for occasionnal lapping here and there.
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Old 02-13-2012, 10:07 PM   #2581
Deraj_53
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To be safe I'd at least get 750cc's
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Old 02-13-2012, 10:09 PM   #2582
WhiteBgeye02
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well i had my 440s on the tdo4 at 110% idc so with the larger turbo i would assume they would be close to being maxed. there is one way to find out but that might mean you need to visit your tuner twice. atleast find some 650's for dirt cheap. if u ever plan on e85 which idk if Canada uses that then you will need atleast 800's with 850's for cushion room.

when i was at the junk yard a while ago i saw two late 90's subarus. when you pull the pins i thought they are crimped. idk how i feel about uncrimping 15 year old pins to reuse...
anyone got some lengths of the wires i will need?
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Old 02-13-2012, 10:24 PM   #2583
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WhiteBgeye02
when i got my v7 the passenger side harness was cut so i had to splice in the old wrx plug. I used a trailer harness for the avcs for under $10, 4 wires and a connector. I got the pins from Subaru. They don't normally sell them but if you talk to the guys behind the counter nice they will give you 4. You just have to re pin the drivers side engine connector and the ecu. I was told shielding does not matter as the wires are not in a bundled with a million others. I have have no problem with my set up
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Old 02-13-2012, 10:25 PM   #2584
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when i got my v7 the passenger side harness was cut so i had to splice in the old wrx plug. I used a trailer harness for the avcs for under $10, 4 wires and a connector. I got the pins from Subaru. They don't normally sell them but if you talk to the guys behind the counter nice they will give you 4. You just have to re pin the drivers side engine connector and the ecu. I was told shielding does not matter as the wires are not in a bundled with a million others. I have have no problem with my set up
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Old 02-13-2012, 10:26 PM   #2585
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Yes. The best would be ID725's with a walbro for that power. They would be scaled just about right for an 18G. Other choices would be DW750 or DW850s. If you have a choice, Get the Light blue DWs and not the dark blue/purple DW's for your application.

C


Quote:
Originally Posted by WRick View Post
Haven't pulled mine, but cleaned thoroughly. If you are regular on oil changes, I wouldn't worry about them.

Now, I have a question of my own.

Sorta thinking I'm going to run out of gas on my setup.

I pulled quite a few parts from my past build, but it's still a daily driver ( and will see cold weather... )

Stock pink injectors ( are those 565's ? )
FP TD05H-18g , ported
APS 70 mm intake
up-pipe/catless downpipe ( I kept the stock rear exhaust, cops ticket us like hell here )
the obvious walbro


Do I need to upgrade the injectors ? I know it's a longshot, just trying to get opinions. The car will be used for occasionnal lapping here and there.
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Old 02-13-2012, 10:43 PM   #2586
WhiteBgeye02
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Wrick: sorry i thought it said 16G not 18G. yeah def need more injector than the 650's i mentioned. sounds like fun. post up some numbers when you get it tuned! its simular to what i would like to do.

1thumper: good call. I got one in the garage i believe already for my snowmobile trailer i did in fall. five feet should be plenty. Time to go talk to the guys at the dealership. We got one close and one 25 min away. if the close guys dont like me which i bet they wont i guess i'll take a cruise. otherwise i guess i could go snip the harness off the subaru's in the junk yard and solder there 2" tail i cut onto the trailer harness. As far as the four wires that get added it says there is a pin for shielding at the ecu and four at the opposite end. the shield is like a grouding around the four wires and grounds itself to the ecu? just no pin in this location then?

Last edited by WhiteBgeye02; 02-13-2012 at 11:03 PM.
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Old 02-14-2012, 09:35 AM   #2587
OppositeLock
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Quote:
Originally Posted by azscooby View Post
Are you guys pulling the screens from the AVCS and the turbo feed lines?

Seems like that would be a good idea since oil may have had a chance to gunk up...
Quote:
Originally Posted by WRick View Post
Haven't pulled mine, but cleaned thoroughly. If you are regular on oil changes, I wouldn't worry about them.
Are we sure the JDM motors even have AVCS screens? I took off the top driver's side AVCS bolt on my V8 and did not find any screens inside the bolt or down into the head.
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Old 02-14-2012, 09:44 AM   #2588
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my V9 doesn't have them either.
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Old 02-14-2012, 10:16 AM   #2589
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I had them on my v7, pulled them out during my rebuild. Suprisingly clean after a ton of miles.
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Old 02-14-2012, 11:00 AM   #2590
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My V9 didn't have them either. The Oil and AVCS screen were only in the engines until about half way through the USDM MY05 model years or JDM MY04 model years as I am aware of.
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Old 02-14-2012, 11:43 AM   #2591
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thanks for the imput guys.

Will give a look at the DW.

I confirm V7 has screens.
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Old 02-14-2012, 12:21 PM   #2592
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correct no pin in the ground location.
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Old 02-14-2012, 02:41 PM   #2593
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i guess im thinking about it too hard but are the pins the same on the ecu end of the harness i need to make as they are on the opposite end by the engine?
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Old 02-14-2012, 05:59 PM   #2594
azscooby
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Has anyone had to replace the PCV hoses?
I'm looking on the online catalogs at STI's (USDM) and the pcv hoses look different than what we've got.
Where can I get these hoses? What model year should I reference?
Mine are ok, but another hot AZ summer and they will probably be rock solid.

On my 2002 WRX with 240K miles on it, they were all hard and starting to leak.

So is the 2004 STI pcv/emissions system the same?
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Old 02-14-2012, 08:43 PM   #2595
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Quote:
Originally Posted by WhiteBgeye02 View Post
i guess im thinking about it too hard but are the pins the same on the ecu end of the harness i need to make as they are on the opposite end by the engine?
nope the ones at the ecu are smaller. They also come out of the connector in different ways. The engine side you have to take part of the connector out and use a small screwdriver to lift a tab.
The ecu side you have to pry up a slide at the back then give a gentle pull. If you use a screwdriver you tend to mess up the tabs and you'll end up pulling it out anyway.
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Old 02-14-2012, 08:50 PM   #2596
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my car hates me and is throwing a cam sensor code at me. Sometimes it works fine, then it stutters on me, HARD. Like, the engine dies.

Smells of gasoline.

help me someone.
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Old 02-15-2012, 12:29 AM   #2597
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What material is the factory twinscroll downpipe for the v8 engine made of? My plan was to cut the flange (or entire bellmouth) from the factory twinscroll pipe, and weld it to a stainless steel downpipe I have. However, if the factory twinscroll pipe isn't stainless then welding it to another material isn't a great idea and I will have to get the IAP flange.
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Old 02-15-2012, 07:28 AM   #2598
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You have flux welding capabillities? That's great. Then buy the downpipe Bellmouth from Kinugawa. It's a high grade stainless, better than 316, I think.

The OEM Is either not stainless, or a very low grade alloy. I had the opposite situation, bought the kinugawa and was going to splice it to the prodrive.
The grades were so different, it didn't make any sense.
So I got the Prodrive spliced with the OEM bellmouth, arc welded at a shop.
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Old 02-15-2012, 07:35 AM   #2599
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Quote:
Originally Posted by azscooby View Post
So is the 2004 STI pcv/emissions system the same?
All the GD Sti have either very similar or identical crankcase/heads oil vapor/positive pressure recirculation systems.
I would call it a "double pickup". Roughly picking up from twice as many places as a wrx.

The only difference is that the Spec C has one less hose connection on the turbo inlet tube (I think the hose that goes to the fuel vapor solenoid is missing) and at the point where the fuel vapors are also brought into the engine vacuum system, the JDM is much more simple.
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Old 02-15-2012, 07:47 AM   #2600
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Quote:
Originally Posted by WRick View Post
thanks for the imput guys.

Will give a look at the DW.

I confirm V7 has screens.
Just so that you understand, the Light blue injectors are shorter than the dark blue ones. You would have two choices: Bend the rail mounts by the ears, or run washers under the rails.

I used both (on my previous engine) and washers make the injectors more quiet.

If you get the light blue ones, the length is identical with the pink ones.

Two other things:

DW replaces couple items in the injector, cleans and flows them. They also give you a table of latencies, which is then used for tuning.

But there are things that they cannot do, one of them is to replace the injector solenoid.

The other thing is that the pink injectors are said to have a better solenoid in them.

I chose to have a local shop clean, flow test and modify my pinks. At least I know how many miles/hours all the components inside have.
There are threads discussing latencies that give you a clue on what it might be.
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