Jump to content
andpdas

EJ207 VVT Settings

Recommended Posts

I have Subaru STI 2012 EJ207.

My Engine has both intake and exaust VVT.

At first, I have used the default cam settings "Subaru Quad AVCS".
But it didn't be stable.

I am using custom pid settings but sill not stable.
I have read the help page in the PCLink about the custom PID settings.
I also understand about how the PID works.
But I can't make it stable.

Could you look at my settings and see if I had messed up something.
Or, any prefered values?

GVB-22L - コピー.pclr

Log : 
https://drive.google.com/file/d/16AIBPA81snG-T_0r1Q5aQA6OrRvFkNTV/view?usp=sharing
 

Share this post


Link to post
Share on other sites

Your Intake cams appear to control well once the oil is warm but are a bit unstable when cold.  You may be able to improve this using a higher/lower minimum and max clamp when cold and posibly reducing Proportional gain a little more.

I would try min max clamps like this:

mnOKE70.png

 

For the exhaust cams, have you tried even less proportional?  Like say about 1.5?

Share this post


Link to post
Share on other sites
4 hours ago, Adamw said:

Your Intake cams appear to control well once the oil is warm but are a bit unstable when cold.  You may be able to improve this using a higher/lower minimum and max clamp when cold and posibly reducing Proportional gain a little more.

I would try min max clamps like this:

mnOKE70.png

 

For the exhaust cams, have you tried even less proportional?  Like say about 1.5?

Thanks, I'll try it!

Share this post


Link to post
Share on other sites

I have tried changing both clamp table and proportional.

It went pretty well on the exhaust right cam. but not on left cam.

I have swapped to the stock ECU and took some logs. but both right and left exhaust cam were stable.
I think it is not a mechanical problem.

Should I use separate PID settings for right and left exhaust cams?
And do you have any idea why does my left exhaust cam are going up and down.

https://drive.google.com/open?id=1AjfPYF8nR7Jw-arvEXf-mMwlgSiQ4q1u
https://drive.google.com/open?id=11oXq1Vj5YbyYr2Lu0Oi89E_y6qlxHNX5

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...