Megasquirt Forum Area is for discussing Megasquirt EMS

Megasquirt Accel enrichment tuning

Thread Tools
 
Search this Thread
 
Old Nov 25, 2018 | 11:49 AM
  #1  
mikey D's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
Liked
Loved
 
Joined: Mar 2004
Posts: 848
Likes: 10
From: Pensacola FL
Accel enrichment tuning

Im having some trouble getting my AE dialed in.
I have a 13b rotory with 50mm ida style throttle bodies. I expect some bug from the big throttle bodies, its been a while though so I dont really remember how much is normal.
The fuel map dialed in fairly well though on the rich side(on purpose).
roll in throttle moments are ok. If I stab and hold it hesitates quite a bit before continuing to rev.
I also notice while Im cruising when I first tip in i get a hesitation.

Im lacking in experience so Im not sure what to do

Reply
Old Nov 30, 2018 | 05:49 PM
  #2  
elturbonitroso's Avatar
Senior Member
Tenured Member: 15 Years
 
Joined: Nov 2006
Posts: 472
Likes: 16
From: connecticut
dial in the ve table first and then play with the AE,AE its very tricky and every engine its different.
Reply
Old Jan 16, 2019 | 08:08 AM
  #3  
arran's Avatar
Full Member
Tenured Member: 20 Years
 
Joined: Oct 2001
Posts: 123
Likes: 0
From: Brisbane Australia
Agree with elturbonitroso.
When you stab the throttle, the active map point is going to move in a vertical direction. The table values in that area won't need to change a great deal because of MapMultiply
The Accel enrichment setup in my tune is just a straight line, starting from 0. You might also want to check a data log to check when AE is activating, the TPSdot threshold might need to be looked at
Reply
Old Jan 16, 2019 | 08:28 PM
  #4  
mikey D's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member: 20 Years
Liked
Loved
 
Joined: Mar 2004
Posts: 848
Likes: 10
From: Pensacola FL
Turned out I had a different issue casing my problems.

If your brake booster check valve goes bad it causes all sorts of wonkey issues while tuning. You'll notice it in logs because your map signal will taper gradually when throttles close instead of quick drop off.
Reply
Old Jan 20, 2019 | 02:27 PM
  #5  
elturbonitroso's Avatar
Senior Member
Tenured Member: 15 Years
 
Joined: Nov 2006
Posts: 472
Likes: 16
From: connecticut
Good that you found the issue.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
arghx
Power FC Forum
22
May 15, 2014 09:05 PM
driftxsequence
Megasquirt Forum
10
Jan 27, 2014 07:33 PM
Spannersrx7
Microtech
8
Oct 6, 2008 06:58 AM
peejay
Megasquirt Forum
2
Mar 3, 2008 06:33 PM
fritts
Power FC Forum
2
Sep 1, 2006 01:00 PM




All times are GMT -5. The time now is 11:01 PM.