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Old 06-18-2012, 09:18 AM   #1
supraman95
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Default disable AVCS on 05 STI longblock in 02 WRX

So I have done alot of searching and trying to figure out what needs to be done. I have an 02 WRX with a 2.5 STI longblock in it. I need to run the car without using the AVCS. Most of the articles I found were older and I did not know what the latest info is on this.

Does someone make block off kits? Is it as simple as just unplugging the AVCS solenoids?

can someone show me pics of each side head and how the oil lines run. Someone welding closed the area where the solenoids go on my heads and I just want to make sure it is even connected correctly.

thanks
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Old 07-30-2012, 08:00 PM   #2
blynch04wrx
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Bump I have the same issue plz help
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Old 07-31-2012, 08:15 PM   #3
blynch04wrx
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Bump ..
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Old 09-07-2012, 04:30 PM   #4
yellowbus
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im looking for the same
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Old 09-07-2012, 05:03 PM   #5
Paidfor
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You gotta tap the oil holes in the cam and screw in studs to block the oil flow to the cam gear.
Theres a sheetload of info about this somewhere on here. Im not even gonna try to search for it because Nasiocs search engine sucks harder than a Hoover. Google that ****............you should find it.
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Old 09-07-2012, 06:42 PM   #6
kellygnsd
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If you want your valve timing to be correct you will need to replace the AVCS gears with non-AVCS gears on the intake cams and modify the cams so they don't leak.

Depending on what ECU you have you will also have to add a reluctor type cam position sensor for your drivers side intake cam and wire that into the ECU.
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Old 09-08-2012, 12:59 AM   #7
UK-Wagon
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Quote:
Originally Posted by kellygnsd View Post
If you want your valve timing to be correct you will need to replace the AVCS gears with non-AVCS gears on the intake cams and modify the cams so they don't leak.

Depending on what ECU you have you will also have to add a reluctor type cam position sensor for your drivers side intake cam and wire that into the ECU.
Agree! Its honestly just easier to buy a 04 STi harness and ECU on ebay. That way you dont have to mess with the b.s.

The cams Cant be welded or drill and tapped while in the car. The debris and welding slag will fall into the holes and then into the cam journals. I personally seen it wipe out a freshly built engine and the heads. So remove engine, remove cams, have them tig welded closed. Buy new cam gears and be good to go. Or just buy a harness + ecu and be on youre marry way with more power!! Should have done better research on this before you did the swap thinking it would work just fine....
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Old 10-17-2012, 11:29 PM   #8
99imprezd
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You really have to use the ej20 Cam gears? Can anyone verify this? I was gonna block off the cam oil holes and just run driver side front cam sensor. I also need to block off the other cam sensors that are open on the heads. I think there are two..
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Old 10-17-2012, 11:33 PM   #9
Wicked Innovation
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thats correct. you need to use the ej205 cam gears. usually you just leave the old sensors in the heads to plug the holes....
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Old 10-17-2012, 11:37 PM   #10
99imprezd
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ok.. they didnt come with the sensors unfortunately.. is it fine to leave all the oil lines running to the avcs or should they be capped off?
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Old 10-17-2012, 11:47 PM   #11
subieguy87
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I Have a wrx swapped gc, I read ej205 wiring will run an ej207 with the exception of the avcs. Is this similar or is it easier 205>207?
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Old 10-18-2012, 12:25 AM   #12
OC_Nooby
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I didn't block any oil passages with my 2004 STI Longblock in my 03 WRX.

I followed this guide.

http://elementtuning.com/technical/ej25_install.htm

Unless an 05 longblock is different then a 04? The only thing I did was just tap for a cam sensor the same way it is in the WRX (driver side).

I'm not running AVCS.

Why are people blocking of oil to the cams? AVCS defaults to the open position (no advance).
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Old 10-18-2012, 12:34 AM   #13
99imprezd
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ok cool.. im already set up for the driver side sensor so Ill just leave the oil lines alone..
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Old 10-18-2012, 12:58 AM   #14
OC_Nooby
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Unless I'm missing something! Car has been running for 3k so far, no issues. Minus my super restrictive turbo inlet (that's a diff story). GL!
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Old 10-18-2012, 01:08 AM   #15
99imprezd
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so youre running the sti cam gears? this is what i was unclear about.. i thought theyd work fine but wasnt sure about the timing..
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Old 10-18-2012, 12:29 PM   #16
OC_Nooby
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Yup I'm running the STI cam gears.
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Old 12-26-2013, 05:10 PM   #17
salvi
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From reading the entire document, the only major thing to do is tap the mounting hole for the WRX cam sensor. They didn't plug any cams or use WRX cams, etc. So, what's the final word on this?

Quote:
I didn't block any oil passages with my 2004 STI Longblock in my 03 WRX.

I followed this guide.

http://elementtuning.com/technical/ej25_install.htm

Unless an 05 longblock is different then a 04? The only thing I did was just tap for a cam sensor the same way it is in the WRX (driver side).

I'm not running AVCS.

Why are people blocking of oil to the cams? AVCS defaults to the open position (no advance).
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