MAF relocation
MAF relocation Im thinking of moving my MAF post blower when I do my FMIC so that I can simply vent my bypass valve to atmosphere. How much tuning skill will be required?? What tables will have to be modified??? Should I try to get a pro to do a baseline tune for me or can I simply go in steps to get my AFR, timing tables, etc back in check??? Would it be better to mount in pre or post intercooler?? Thanks
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Joined: Feb 2004
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Originally Posted by greentahoe
Im thinking of moving my MAF post blower when I do my FMIC so that I can simply vent my bypass valve to atmosphere. How much tuning skill will be required?? What tables will have to be modified??? Should I try to get a pro to do a baseline tune for me or can I simply go in steps to get my AFR, timing tables, etc back in check??? Would it be better to mount in pre or post intercooler?? Thanks
Originally Posted by Another_User
I am not a supercharger expert, but I would think you would want the MAF post blower and post intercooler (aftercooler...whatever). If you have the MAF before the supercharger it is giving wrong readings. You need the measure of mass air right before it goes into the intake. You may go over your MAFs limits, depending on how much boost you are pushing. You may need to upgrade your MAP sensor and run speed density. There are many posts on these subjects laying around on here in the "archives".
It has been wideband dyno tuned as is, but I would think that moving the MAF at this point would make it run extremely rich under boost since it is already adding enough fuel under boost to keep the desired AFR. I did a search and unfortunately I couldnt find anything on how this is handled.
Thanks again for the help.
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Joined: Feb 2004
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Originally Posted by greentahoe
Thanks. In the vortech kit the MAF is preblower. Basically am I going to have to get in to volumetric efficiency tables from the start to get it to idle??? Im a total newb to tuning so I dont want to break things if this is something a pro should establish a baseline on first.
It has been wideband dyno tuned as is, but I would think that moving the MAF at this point would make it run extremely rich under boost since it is already adding enough fuel under boost to keep the desired AFR. I did a search and unfortunately I couldnt find anything on how this is handled.
Thanks again for the help.
It has been wideband dyno tuned as is, but I would think that moving the MAF at this point would make it run extremely rich under boost since it is already adding enough fuel under boost to keep the desired AFR. I did a search and unfortunately I couldnt find anything on how this is handled.
Thanks again for the help.
