dyno tuning for partial throttle
08-02-2005, 11:57 PM
#1
dyno tuning for partial throttle I need to get a FULL ve table tuned in on a dyno. I have access to Mustang Dyno, which supposed to be able to fully simulate different loads at different speeds. Who's tuned their VE table on the Mustang? How is this procedure different than driving around on the streets? How many runs do I need, if I want to cover pretty much everything between 4000-7000rpm?
When I call a shop, what can I ask them so I could figure out if they know what I'm trying to do here, and not just do 'dyno runs.'
When I call a shop, what can I ask them so I could figure out if they know what I'm trying to do here, and not just do 'dyno runs.'
08-03-2005, 12:13 AM
#2
how much is the VE table referenced at those rpm's?
I was under the understanding that the maf was used above 4000 almost entirely.
You need to ask the shop if you can use thier dyno, to do drivability testing on. Some shops don't care, others won't let other people drive on their dyno.
Ryan
I was under the understanding that the maf was used above 4000 almost entirely.
You need to ask the shop if you can use thier dyno, to do drivability testing on. Some shops don't care, others won't let other people drive on their dyno.
Ryan
08-03-2005, 06:48 PM
#6
Originally Posted by RedHardSupra
VE isn't referenced in these higher map/rpm cells at all, but it references MAF, which I calibrate based on the VE table. So whether I'm running MAF or SD, I still need the full VE table.
Trending Topics
08-04-2005, 08:43 AM
#8
Moderator
iTrader: (11)
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,605
Likes: 0
Received 6 Likes
on
6 Posts
If you have your own wideband then just a series of
pulls on the highway, varying TPS (10%, 20%, 30%...)
will get you a pretty good coverage of the airflow map.
At least enough that you can eyeball-interpolate the
gaps. If you can log WB_AFR along with commanded AFR,
MAP and RPM then you can produce yourself a good
"correction surface" to apply to the VE table based on
the commanded/actual ratio. You could disable the
MAF and closed loop / learning and zero the trims for
this exercise and then see the VE model for what it is.
pulls on the highway, varying TPS (10%, 20%, 30%...)
will get you a pretty good coverage of the airflow map.
At least enough that you can eyeball-interpolate the
gaps. If you can log WB_AFR along with commanded AFR,
MAP and RPM then you can produce yourself a good
"correction surface" to apply to the VE table based on
the commanded/actual ratio. You could disable the
MAF and closed loop / learning and zero the trims for
this exercise and then see the VE model for what it is.
