Forced Induction Discussion of turbos , superchargers , and nitrous upgrades on the G35

Problems with MAF/Fueling or tune. (Momentum)

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Old 04-01-2012 | 08:41 PM
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Problems with MAF/Fueling or tune. (Momentum)

So after getting the Momentum ST kit installed. I am still trying to iron out some problems.

Problems, at 2500rpm it has a lean spot, Ive been told its to do with the PMAS maf and that its fairly common.. I have most of that problem ironed out.

SOMETIMES up top, in full boost, it feels like its hesitating, I cant very much discribe the feeling other then that.. It doesnt feel likes it making full power, it very slightly chuggs, (A passenger thought I was losing traction) but I wasnt.

Now Ive talked to a few ppl and the general consensis is that the MAF Location on the Momentum kit is
1. To close to the BOV
2. To close to the bend.

Now could this be a spark plug problem (Improper gap, the plugs that came with the ST kit were used, 1 stage colder NGK, we didnt touch the gap on them to my knowledge, I wasnt there)

Would buying a Uprev GT maf fix this? could it just be the PMAS which everyone is telling me is a garbage maf. Should I move the MAF placement higher towards the TB?
How far away should it be from the BOV, Right now its about 3 inches away.
How far should it be from the Bend?
Below is a picture of where the placement of MAF is from the BOV and the bend on the kit.
 
  #2  
Old 04-02-2012 | 06:21 PM
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complete parts list?
any data logging to share?
 
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