Closed Loop Threshold

K-Series Programmable ECU installation questions / support issues
Post Reply
VT-Doo
Posts: 117
Joined: Tue May 09, 2006 2:49 pm
Location: Stirling, Scotland

Closed Loop Threshold

Post by VT-Doo »

Standard maps within KManager have the Closed Loop threshold set to 80kPa.
I read one of Hondata's posts stating 70kPa is a better option.

I'm curious to see what others have set theirs to including a little insight from the moderators.

The reason for this is because I feel the car will enter Open Loop with what seems like little load on the engine.


Cheers,
Ian


Morris Mini (B18C-R)
Honda Civic Type R (FD2)
Honda Civic Type R (FK2)
User avatar
Hondata
Site Admin
Posts: 10452
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Post by Hondata »

I find that 80-85 kPa works well.
Hondata
Floppie
Posts: 71
Joined: Thu Mar 18, 2010 11:11 pm
Location: Philadelphia, PA
Contact:

Post by Floppie »

Personally I just run open loop :)
VT-Doo
Posts: 117
Joined: Tue May 09, 2006 2:49 pm
Location: Stirling, Scotland

Post by VT-Doo »

Thanks,
I've bumped it up to 80 for now, I'll see how I get on and report back.
Ian


Morris Mini (B18C-R)
Honda Civic Type R (FD2)
Honda Civic Type R (FK2)
Tsx536
Posts: 20
Joined: Fri Jan 02, 2009 12:40 am

Post by Tsx536 »

Would a map of 90 kpa be too high for the closed loop max?

My main concern is that we need to tune for a richer mixture as the manifold pressure increases. As the pressure goes up, we want to tune the AF ratio closer to 13.0-13.5 for the NA tables.

So at what point do we need to tune towards 13.0-13.5 instead of 14.7?
How much pressure is the max that is safe to run at an AF ratio of 14.7?
Floppie
Posts: 71
Joined: Thu Mar 18, 2010 11:11 pm
Location: Philadelphia, PA
Contact:

Post by Floppie »

If you pull enough ignition out of it, you can go as high as you want at 14.7 - you're going to be losing a fair amount of power though. Personally, if you're going to use closed loop, I'd say go with what Hondata recommends for the max load setting.
tiger
Posts: 41
Joined: Mon Apr 14, 2008 5:14 pm

Post by tiger »

What is the actual max MAP value for closed loop? Does it switch to open loop at some point regardless of what value you put in there?
The Spectacle
Posts: 95
Joined: Wed Jul 15, 2009 11:09 am

Post by The Spectacle »

tiger wrote:What is the actual max MAP value for closed loop? Does it switch to open loop at some point regardless of what value you put in there?
KPA MAP
5 -14
10 -13.2
15 -12.5
20 -11.8
25 -11
30 -10.3
35 -9.6
40 -8.8
45 -8.1
50 -7.4
55 -6.6
60 -5.9
65 -5.1
70 -4.4
75 -3.7
80 -2.9
85 -2.2
90 -1.5
95 -0.7
100 0
Post Reply