Why is the MAF so sluggish?
Why is the MAF so sluggish? I just finished using EFILive autoVE (running the car in speed density and tuning against a wideband). Man, the car ran so crisp and responded to throttle so quickly. Why does putting the same VE table back into my MAF tune now feel so sluggish?
The car felt great in SD mode but feels blah in MAF.
The car felt great in SD mode but feels blah in MAF.
Now you need to rescale the MAF table with your LC-1 with the trims off. Create a Map similar to the VE ben only based on the MAF o/p freqs vs rpm with the lc-1 as the data. See EFI Lives forum for the actual map.
The know it all's know it all
Joined: Oct 2006
Posts: 500
Likes: 0
Originally Posted by diynoob
I just finished using EFILive autoVE (running the car in speed density and tuning against a wideband). Man, the car ran so crisp and responded to throttle so quickly. Why does putting the same VE table back into my MAF tune now feel so sluggish?
The car felt great in SD mode but feels blah in MAF.
The car felt great in SD mode but feels blah in MAF.
TECH Resident
Joined: Aug 2003
Posts: 970
Likes: 4
From: England UK
Also dont forget when tuning that the reading from your WB O2 will be 5 samples or so behind the rest. So while you are trying to make small transistions while driving the O2 readings are delayed campared to Commanded AFR due to the gases having to go down the exhaust pipe.
I'm trying to work on something in Excel to account for the late WB02 readings, realign and create a VE modifier. I'm also going to take into account that the amount of samples its delayed may depend on RPM.
I'm trying to work on something in Excel to account for the late WB02 readings, realign and create a VE modifier. I'm also going to take into account that the amount of samples its delayed may depend on RPM.
Originally Posted by RedWS6 00
Also dont forget when tuning that the reading from your WB O2 will be 5 samples or so behind the rest. So while you are trying to make small transistions while driving the O2 readings are delayed campared to Commanded AFR due to the gases having to go down the exhaust pipe.
I'm trying to work on something in Excel to account for the late WB02 readings, realign and create a VE modifier. I'm also going to take into account that the amount of samples its delayed may depend on RPM.
I'm trying to work on something in Excel to account for the late WB02 readings, realign and create a VE modifier. I'm also going to take into account that the amount of samples its delayed may depend on RPM.
Hi guys,
As per Doc's advice I found the map to apply BEN to MAF on EFILive. It wasn't setup for my MAF or for my LC1 but once I saw what those guys were doing I was able to transpose it to my car.
Once I rescaled the MAF according to that data (which was much easier to get than the VE data) the car felt great again.
As per Doc's advice I found the map to apply BEN to MAF on EFILive. It wasn't setup for my MAF or for my LC1 but once I saw what those guys were doing I was able to transpose it to my car.
Once I rescaled the MAF according to that data (which was much easier to get than the VE data) the car felt great again.
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Verdad Gallardo The know it all's know it all
Joined: Oct 2006
Posts: 500
Likes: 0
Originally Posted by diynoob
Hi guys,
As per Doc's advice I found the map to apply BEN to MAF on EFILive. It wasn't setup for my MAF or for my LC1 but once I saw what those guys were doing I was able to transpose it to my car.
Once I rescaled the MAF according to that data (which was much easier to get than the VE data) the car felt great again.
As per Doc's advice I found the map to apply BEN to MAF on EFILive. It wasn't setup for my MAF or for my LC1 but once I saw what those guys were doing I was able to transpose it to my car.
Once I rescaled the MAF according to that data (which was much easier to get than the VE data) the car felt great again.