Jump to content

Torque management


will15

Recommended Posts

Is anyone  successfully running Torque management (timing retard on gear shift) and not getting boost spikes on the gear shift with a biggish turbo. Can you just do say 20% torque management or is it a thing that should only be set to  either on or off?

Link to comment
Share on other sites

I have a 66mm turbo with a ported internal gate.

I've tried leaving a dip in the boost maps where the gear change lands and that works, except it comes on boost slower. Apparently that is common practice.

I also messed with some of the overboost and turbo settings and had some luck there. It's been a while since I played with it so can't remember it all from the top of my head.

 

I think that the internal gate isn't big enough and cant react quick enough to prevent boost spikes in an auto car but maybe someone knows better?

Link to comment
Share on other sites

This is running a 50mm external gate which works well, but if I’m commanding 50 dc for the gate and I get -5deg on a gear shift it over boost. I don’t see how I could adjust the wgdc table for a gear change as a gear shift can happen in different rpm range depending on throttle position. I had a g6e that I was playing with TM and reduced it to 10% but some times it would gear shift weird.

Link to comment
Share on other sites

If you are getting boost spikes on timing retard play with this table. auF3002 "Change in spark adder to waste gate duty cycle"

image.png.673de9c1e57e2deee8af899812c783aa.png

This is a multiplier to the wastegate duty cycle for spark retard. So as you can see on 20 degrees retard it should be commanding ~10% less duty cycle. Try blowing this table out until you get no boost spike.

Note that this table is only available in the FG

Link to comment
Share on other sites

Hi thanks for that, I tried playing with end less combinations with that table and it seems to only want to give me 100dc or 0 dc I would like to take out 20 % dc at 0 deg so I put in the 0 colum -0.2 and it gives 0 dc until spark cut on gear change then gives me 38% dc. If I try -0.09 it does nothing. Is it playing off some other table I might have done something to?

Link to comment
Share on other sites

If you put anything in the 0 cell you will cause issues. That means it will be subtracting a value from the commanded duty cycle when there is NO spark retard. You want it to only occur when there is spark retard.

How much spark retard is being commanded on shifts? Once you know that value you know which cell to edit.

Link to comment
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
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
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.

×
×
  • Create New...