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Old 06-30-2010, 04:38 PM   #126
lcjarrett
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Thanks for a quick respond.
I am going to Weld them.
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Old 07-01-2010, 12:54 AM   #127
ozzy370
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+1 on welding. make sure they are flat before putting the gears on.
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Old 07-12-2010, 04:30 PM   #128
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will do sir....

My question is, Is it really worth it? Are STI Cams going to help out?
please explain.

Thank You
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Old 07-12-2010, 05:28 PM   #129
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Quote:
Originally Posted by lcjarrett View Post
will do sir....

My question is, Is it really worth it? Are STI Cams going to help out?
please explain.

Thank You
STI cams have higher lift. Higher lift = more air is able to flow.

More air flow = more HP

But then there is the great debate as to whether STI cams come retarded and AVCS advances to the WRX timing, OR whethere the STI cams are at the WRX timing and AVCS advances to increase timing... I am lead to believe the latter - Only because I measured both my STI cams and WRX cams (using WRX gears) and they were the same.
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Old 07-12-2010, 07:41 PM   #130
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^STi cams are only retarded if running them with the STi cam gears. When running them with the WRX cams gears there is no timing difference.
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Old 07-12-2010, 09:40 PM   #131
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roger That!!!
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Old 10-25-2011, 10:06 PM   #132
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Subscribed for ideas when I delete my AVCS.
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Old 10-26-2011, 03:51 PM   #133
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So letme get this right on my 04 sti swapped into a wrx I have avcs heads and cams but a non avcs ecu so it's not wired up at all this means my intake cams are both retarded 10 degrees? I'm amazed it runs if that's the case
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Old 10-26-2011, 03:57 PM   #134
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Quote:
Originally Posted by cowboy_Rob View Post
So letme get this right on my 04 sti swapped into a wrx I have avcs heads and cams but a non avcs ecu so it's not wired up at all this means my intake cams are both retarded 10 degrees? I'm amazed it runs if that's the case
Your reasoning on the cams is not correct.

The cams are not retarded and they run just fine. Ask the many EJ205 owners, including myself, who run them. Major improvement in mid range and top end compared to S20 cams...

They are not AVCS cams when used in non-AVCS heads. The cams are only retarded if you use them in AVCS heads with AVCS disabled...
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Old 10-26-2011, 04:06 PM   #135
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I have sti avcs cams, heads, and cam gears. I have avcs solenoids on the engine but they don't have any wiring to them.
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Old 10-26-2011, 04:17 PM   #136
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Quote:
Originally Posted by cowboy_Rob View Post
I have sti avcs cams, heads, and cam gears. I have avcs solenoids on the engine but they don't have any wiring to them.
It will still run just fine, it just won't advance. The lift and duration of the cams is unchanged.

In any case thought you were referring to EJ205 heads...
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Old 10-26-2011, 06:20 PM   #137
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I know they won't advance but since I have the sti avcs gears does that make then 10 degrees retarded or not?

If sti cams with avcs gears unhooked in a wrx head is retarded why wouldn't it be in mine

Last edited by cowboy_Rob; 10-26-2011 at 09:33 PM.
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Old 10-27-2011, 10:17 AM   #138
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I believe they would retard but i need to do further research. This is why Im welding the holes on my Cams and running them on the AVCS Heads with the AVCS Oiling lines removed and the banjo bolt holes plugged with a bolt. Now, when doing this, Ive been told you can run WRX Cam graes insted of the STi ones as well. Dont think that matters too much but I need to do more research.
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Old 11-10-2011, 07:24 PM   #139
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Default cams

if you are running avcs cams and avcs heads you need to run the solnids and oil lines to properly lub. the front cam bearings even with plugged cams VERY IMPORTANT or you may sieze the cam in the head
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Old 01-03-2012, 07:42 PM   #140
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hello.my name is bill and i am from greece.i have wrx heads and wrx cams,but i also have sti cams.i really want your help because now i am closing the engine,and i don't know anything about the edm camshaft specs.can you help me???what lift and duration have the edm wrx cams and what the sti's???witch cam to prefer?
thank you very much
sorry for my bad english
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Old 02-16-2012, 12:07 AM   #141
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Quote:
Originally Posted by oldandslowjim View Post
if you are running avcs cams and avcs heads you need to run the solnids and oil lines to properly lub. the front cam bearings even with plugged cams VERY IMPORTANT or you may sieze the cam in the head
completely agree.

any long term success with plugging these oil passages? anything more than six months driving?

very curious because the way im seeing the oil passage on the head, if you block the end of the cam gear, you block all bearing lube..
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Old 09-09-2012, 07:49 PM   #142
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I'm putting a ej 25 long block in my 04 wrx and need to plug these holes even tho iv got sti heads just not running avcs...am I correct on this?
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Old 09-09-2012, 11:33 PM   #143
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Depends on where your orig cam sensor was/is? If its on the back by turbo then no, leave avcs cams there.
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Old 09-10-2012, 01:06 AM   #144
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Quote:
Originally Posted by curtisboes View Post
I'm putting a ej 25 long block in my 04 wrx and need to plug these holes even tho iv got sti heads just not running avcs...am I correct on this?
If you have EJ25 heads, you need to find a way to mount the cam sensor for your ECU, as it's different than the sensors used for the ECUs that drive the AVCS heads.

As or the holes, if you have AVCS cam gears you do not block. If you have non-AVCS cam gears you need to block them.

Last edited by Concillian; 09-11-2012 at 07:06 PM.
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Old 09-10-2012, 08:22 PM   #145
curtisboes
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I have ej35 heads not runnin avcs...I got a cam angle bracket for the sensor...the problem is that the holes arnt plugged and oil is pouring out of the cam into the timing cover...
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Old 09-11-2012, 05:27 PM   #146
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This is really good. I will be building a set of 2.0 heads with sti cams
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Old 09-11-2012, 07:07 PM   #147
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Quote:
Originally Posted by curtisboes View Post
I have ej35 heads not runnin avcs...I got a cam angle bracket for the sensor...the problem is that the holes arnt plugged and oil is pouring out of the cam into the timing cover...
umm... plug the holes? non-AVCS cam gear = plug the holes.
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Old 09-11-2012, 08:23 PM   #148
curtisboes
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If I use the avcs cam gears will that block the holes?
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Old 10-08-2012, 09:38 PM   #149
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Quote:
Originally Posted by dirtslayer

completely agree.

any long term success with plugging these oil passages? anything more than six months driving?

very curious because the way im seeing the oil passage on the head, if you block the end of the cam gear, you block all bearing lube..
2nd this. Any follow up?
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Old 10-08-2012, 09:43 PM   #150
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I've been running plugged STI cams in WRX heads for more than 2 years. No issues, Billet 20G DD.
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