five-0-motorsports injectors
06-21-2011, 04:14 PM
#5
FormerVendor
iTrader: (6)
Join Date: Nov 2004
Location: BERRIEN CENTER,MICHIGAN
Posts: 1,017
Likes: 0
Received 0 Likes
on
0 Posts
Yes of course any time you change injectors and just adjust the IFR table only in the tune their is always going to be some kind of problems and or alot of the fueling error will be taken up in other areas of the tune like having the error being absorbed into the VE and or MAF tables which is not good!
I highly highly doubt that the necessary correct data outside of the actual flow rate for these injectors is available. Which would be the voltage offsets, min. pulsewidth, short pulse adder, etc..... Every injector has different opening/offset times and injectors in the low pulsewidth regions are not linear which is where the correct data makes all of the difference in the world, otherwise idle issues with fueling and whatnot will be a problem.
I highly highly doubt that the necessary correct data outside of the actual flow rate for these injectors is available. Which would be the voltage offsets, min. pulsewidth, short pulse adder, etc..... Every injector has different opening/offset times and injectors in the low pulsewidth regions are not linear which is where the correct data makes all of the difference in the world, otherwise idle issues with fueling and whatnot will be a problem.
06-21-2011, 04:39 PM
#6
Staging Lane
Thread Starter
iTrader: (4)
Join Date: Jul 2009
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
Yes of course any time you change injectors and just adjust the IFR table only in the tune their is always going to be some kind of problems and or alot of the fueling error will be taken up in other areas of the tune like having the error being absorbed into the VE and or MAF tables which is not good!
I highly highly doubt that the necessary correct data outside of the actual flow rate for these injectors is available. Which would be the voltage offsets, min. pulsewidth, short pulse adder, etc..... Every injector has different opening/offset times and injectors in the low pulsewidth regions are not linear which is where the correct data makes all of the difference in the world, otherwise idle issues with fueling and whatnot will be a problem.
I highly highly doubt that the necessary correct data outside of the actual flow rate for these injectors is available. Which would be the voltage offsets, min. pulsewidth, short pulse adder, etc..... Every injector has different opening/offset times and injectors in the low pulsewidth regions are not linear which is where the correct data makes all of the difference in the world, otherwise idle issues with fueling and whatnot will be a problem.
06-21-2011, 05:03 PM
#7
FormerVendor
iTrader: (6)
Join Date: Nov 2004
Location: BERRIEN CENTER,MICHIGAN
Posts: 1,017
Likes: 0
Received 0 Likes
on
0 Posts
Basically. Their is pretty much just two ways to always go about it, first way is for people to choose an injector that has the full correct amount of data on them (method I prefer!) or two make sure the VE and MAF tables were tuned correctly using the stock injectors with the stock factory data or an injector with all of the data and then install the different injectors with at the very least the right flow rate input into the tune and then you pretty much need to solve backwards for the errors in the fueling by making changes to the other injector data like the offsets, etc..... If the fuel trims and AFR error was tuned to within 1%-3% and then an injector change is made and now the error is say 10%-15% this does not call for a change to the airflow tables to fix it! This just creates another problem by trying to cover up the original issue.
Trending Topics
06-21-2011, 09:40 PM
#8
Staging Lane
Thread Starter
iTrader: (4)
Join Date: Jul 2009
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
Basically. Their is pretty much just two ways to always go about it, first way is for people to choose an injector that has the full correct amount of data on them (method I prefer!) or two make sure the VE and MAF tables were tuned correctly using the stock injectors with the stock factory data or an injector with all of the data and then install the different injectors with at the very least the right flow rate input into the tune and then you pretty much need to solve backwards for the errors in the fueling by making changes to the other injector data like the offsets, etc..... If the fuel trims and AFR error was tuned to within 1%-3% and then an injector change is made and now the error is say 10%-15% this does not call for a change to the airflow tables to fix it! This just creates another problem by trying to cover up the original issue.
06-21-2011, 10:11 PM
#9
FormerVendor
iTrader: (6)
Join Date: Nov 2004
Location: BERRIEN CENTER,MICHIGAN
Posts: 1,017
Likes: 0
Received 0 Likes
on
0 Posts
Yes! If the VE and or MAF were dialed in pretty good based on and I am assuming you had just some stock injectors that came in the truck then the airflow tables like the VE and MAF don't need to be taking up the fueling error created by the injector data being off, follow me?
06-21-2011, 10:43 PM
#10
Staging Lane
Thread Starter
iTrader: (4)
Join Date: Jul 2009
Posts: 90
Likes: 0
Received 0 Likes
on
0 Posts
Yes! If the VE and or MAF were dialed in pretty good based on and I am assuming you had just some stock injectors that came in the truck then the airflow tables like the VE and MAF don't need to be taking up the fueling error created by the injector data being off, follow me?
ill post some logs as soon as i get her running