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Old 02-06-2012, 05:32 PM   #1
Ostrowrx
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I have been doing tons of research on how to run my new built 2.5 bottom end with 04 Sti heads on my 03 wrx and ECU and I have all the major installation stuff figured out. only thing I'm not sure about is if running the 04 sti cams plugged will work as well as any cam for this basic build or if there is a better cam option that would help maintain the power band closer to that of an STi with avcs. Please don't tell me to run x or z just suggest cam options and your expirence with them. I'm a little concerned about my low rpm drivability end but def going non-avcs until I have more cash. obviously if the cam options are crazy expensive I'll stick with the sti cams but I would at least like to investigate my options.
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Last edited by Ostrowrx; 02-06-2012 at 08:03 PM.
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Old 02-06-2012, 06:05 PM   #2
sense of nature
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Stick w/ your wrx cams
w/ out the Avcs functioning the Sti cams are in the retarded position
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Old 02-06-2012, 06:27 PM   #3
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Default Best Non-AVCS Cam Options

On the advice of Maxwell PS, mine are the original WRX cams. I wanted the low-end torque and got 340 at 16 psi. Use the extra money to buy a Blouch 18G-XT and get an E85 tune. You will not miss the AVCS.

GLWYB
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Old 02-06-2012, 06:41 PM   #4
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I'm not sure if it was you that asked about the avcs cam gears but you'll also be better off using wrx cam gears with your oem or after market cams. You will need to check the bucket clearance though for the wrx cams
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Old 02-06-2012, 07:46 PM   #5
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Quote:
Originally Posted by wrxsubiemod
I'm not sure if it was you that asked about the avcs cam gears but you'll also be better off using wrx cam gears with your oem or after market cams. You will need to check the bucket clearance though for the wrx cams
I think you have to use wrx cam gears to use the ecu,
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Old 02-06-2012, 07:50 PM   #6
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Quote:
Originally Posted by RexWagonWA
On the advice of Maxwell PS, mine are the original WRX cams. I wanted the low-end torque and got 340 at 16 psi. Use the extra money to buy a Blouch 18G-XT and get an E85 tune. You will not miss the AVCS.

GLWYB
So you prefer wrx cams in the Sti heads? Also no e85 available around here! And im running an hta68! Not trying to go to big right now. Just want somewhat reliable dd.
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Old 02-06-2012, 07:52 PM   #7
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Quote:
Originally Posted by sense of nature
Stick w/ your wrx cams
w/ out the Avcs functioning the Sti cams are in the retarded position
The avcs doesnt retard it advances. With unplugged it just runs at 0 advance. At least this sums up what I have read!
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Old 02-06-2012, 08:01 PM   #8
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Run the plugged sti cams, wrx cam gears and wrx cam sensor.
Same as running sti cams in s20 heads.
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Old 02-06-2012, 08:02 PM   #9
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double post

Last edited by theotherguy; 02-06-2012 at 08:16 PM.
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Old 02-06-2012, 08:04 PM   #10
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Quote:
Originally Posted by theotherguy
Run the plugged sti cams, wrx cam gears and wrx cam sensor.
Same as running sti cams in s20 heads.
This is the plan but still want to know if there are any better cam options.
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Old 02-06-2012, 09:20 PM   #11
sense of nature
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Quote:
Originally Posted by Ostrowrx View Post
The avcs doesnt retard it advances. With unplugged it just runs at 0 advance. At least this sums up what I have read!
I was @ a tuning class taught by Christian From Cobb
& he said that is a fallacy
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Old 02-06-2012, 11:18 PM   #12
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Quote:
Originally Posted by theotherguy View Post
Run the plugged sti cams, wrx cam gears and wrx cam sensor.
Same as running sti cams in s20 heads.
about to say the same thing
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Old 02-07-2012, 09:05 AM   #13
Ostrowrx
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Quote:
Originally Posted by sense of nature View Post
I was @ a tuning class taught by Christian From Cobb
& he said that is a fallacy

Can you point me to some good information about this topic?
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Old 05-30-2014, 09:28 PM   #14
Donnie5455
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If the holes on the cam can be blocked what's the best way to do so
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Old 06-01-2014, 12:03 AM   #15
Ostrowrx
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I used a good quality set screw. Something that won't seize. When I installed the set screws I used a sealing thread locker. And of course you need to tap the cams carefully.
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Old 06-01-2014, 12:53 AM   #16
Paul
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Quote:
Originally Posted by theotherguy View Post
Run the plugged sti cams, wrx cam gears and wrx cam sensor.
Same as running sti cams in s20 heads.
+2

Or if you got some money to burn get some cams. BCs are affordable (800ish) and are more mild then most other companies. Their stage 2 wrx cams would proly work well for you


Have you looked into running a STI ecu and wiring the AVCS?
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