tuning on tephra 96531706 map SD VE
Jun 27, 2011, 01:20 PM
#1
Evolving Member
Thread Starter
iTrader: (8)
Join Date: Feb 2010
Location: Brooklyn NYC
Posts: 125
Likes: 0
Received 0 Likes
on
0 Posts
tuning on tephra 96531706 map SD VE
I cant grasp this realtionship for nothing.. i have searched ..but i cant seem to find anything that tells me exactly why the numbers in the right(load) column and the numbers in the left(kpa) either go up or down. So far from what i understand is that map sd ve is used to line you up correctly with the fuel map. PLease correct me immediately if im wrong.
Last edited by lp_ceo; Jul 30, 2011 at 03:46 PM.
Jul 15, 2011, 08:38 PM
#5
I cant grasp this realtionship for nothing.. i have searched ..but i cant seem to find anything that tells me exactly why the numbers in the right(load) column and the numbers in the left(kpa) either go up or down. So far from what i understand is that map sd ve is used to line you up correctly with the fuel map. PLease correct me immediately if im wrong.
Jul 15, 2011, 10:49 PM
#6
simplified it pretty well there Creamo3 
let me add that when you're cruising around you rarely ever hit anything below 40KPA vacuum.
and
when changing map ve in a area where rpm ve isnt 100% then you need to use math to find the proper load. (map ve * rpm ve = load)
you have 33 map ve but you're at 2000rpm 80% ve then your final map ve should be something like 33/0.80 = 41.25
this is all documented on forum but helps dial it in a bit more technical. i have crap tons of notes i got from forum.. the forums full of treasures for those who want to learn SD just need to hunt for them.
let me add that when you're cruising around you rarely ever hit anything below 40KPA vacuum.
and
when changing map ve in a area where rpm ve isnt 100% then you need to use math to find the proper load. (map ve * rpm ve = load)
you have 33 map ve but you're at 2000rpm 80% ve then your final map ve should be something like 33/0.80 = 41.25
this is all documented on forum but helps dial it in a bit more technical. i have crap tons of notes i got from forum.. the forums full of treasures for those who want to learn SD just need to hunt for them.
Jul 16, 2011, 06:20 PM
#7
Evolving Member
Thread Starter
iTrader: (8)
Join Date: Feb 2010
Location: Brooklyn NYC
Posts: 125
Likes: 0
Received 0 Likes
on
0 Posts
Here's a really high level breakdown: 0-100 kpa is when your car is in vacuum (cruising) and above 100kpa is boost, the load column dictates what load you want to target at a particular pressure. Most people start out tuning that map at a 1:1 value and adjust the load column to get the fueling/drivability where they like it. Increasing the values in the load column will make your fueling richer and push you further to the right in your fueling/timing maps. If you set that table to 100 load at 100kpa the car would be right in the 100 load colunm in your fuel/timing maps when the car starts to transition into boost. The RPM/VE map is another fueling map that works similar to the load map, increasing numbers in the VE column will make things richer and decreasing will lean things out. Now go tune your car
:beer :
Trending Topics
Jul 16, 2011, 06:27 PM
#8
Evolving Member
Thread Starter
iTrader: (8)
Join Date: Feb 2010
Location: Brooklyn NYC
Posts: 125
Likes: 0
Received 0 Likes
on
0 Posts
simplified it pretty well there Creamo3
let me add that when you're cruising around you rarely ever hit anything below 40KPA vacuum.
and
when changing map ve in a area where rpm ve isnt 100% then you need to use math to find the proper load. (map ve * rpm ve = load)
you have 33 map ve but you're at 2000rpm 80% ve then your final map ve should be something like 33/0.80 = 41.25
this is all documented on forum but helps dial it in a bit more technical. i have crap tons of notes i got from forum.. the forums full of treasures for those who want to learn SD just need to hunt for them.
let me add that when you're cruising around you rarely ever hit anything below 40KPA vacuum.
and
when changing map ve in a area where rpm ve isnt 100% then you need to use math to find the proper load. (map ve * rpm ve = load)
you have 33 map ve but you're at 2000rpm 80% ve then your final map ve should be something like 33/0.80 = 41.25
this is all documented on forum but helps dial it in a bit more technical. i have crap tons of notes i got from forum.. the forums full of treasures for those who want to learn SD just need to hunt for them.
Jul 17, 2011, 06:46 PM
#10
Account Disabled
Join Date: Jan 2008
Location: Phoenix,Az
Posts: 45
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the info. Now to gather everything and experiment with it. So the understanding of it is to tune the sd to what your fuel maps already show to where everything lines up then start tuning your fuel maps again?
Jul 18, 2011, 04:20 PM
#11
Evolving Member
Thread Starter
iTrader: (8)
Join Date: Feb 2010
Location: Brooklyn NYC
Posts: 125
Likes: 0
Received 0 Likes
on
0 Posts
Funny when i do that my numbers in the right have to exceed the number in the left of map ve in order for me not to run extremely lean. also all trims were within 7% from rescaling the injectors. As i adjust the right column on the map ve i can see it moving to the right as i want but everyone says before boost it should be lower then whats on the right. and 1:1 getting into boost. it seems like its working backwards for me.
Last edited by lp_ceo; Jul 27, 2011 at 12:57 PM.
Thread
Thread Starter
Forum
Replies
Last Post
Jonathan Brito
Evo X Electrical / Audio / Security
1
Aug 5, 2016 02:16 AM
06Black
ECU Flash
41
Jul 6, 2016 12:43 PM
