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New maf housing/sensor trials.

solo92s10

Hard-core CEG'er
Joined
Aug 29, 2009
Messages
1,454
Location
Elizabethtown, PA
Been trying to figure out a way to clean up look of the maf housing on my svt and came up with spectre mafs housing part #8705 and I used the sensor out of my 01 F150 since it has the air current guide thingy built onto the sensor instead of in the housing like the svtc. I figured this would not idle correctly or run at all maybe, but i got the housing for free when ordering parts for someone else so I figured i would try it.
Sofar I only got to drive it around a couple of blocks but it ran and idled as normal. IM gonna keep a screwdriver and the old maf and housing in the car incase after a couple of drive cycles things change.

Old intake pic

DSC02247..JPG

New pics

DSC02415..JPG

DSC02416..JPG

Would like to get the filter over to the fender a little further yet but looks a lot cleaner. Also the sensor is upside down. On my f150 stock it came on the front side but I have ran it on my f150 upside down for 10k miles with no problems. Cant say for sure but it seems as though it should flow more air as the mafs air channel thingy isnt taking up as much room in the housing.

Let me know what you think and deffinatley any concerns you may have with it.
 
i think the maf curve is not going to be correct, as they are tuned vehicle specific, i found this out when i went to have my car tuned and i was running a maf for a non svt dura, he showed me the curve difference between the two.
 
Yep, the output voltage is going to be incorrect as the F150 would be pulling a greater mass of air corresponding to each voltage point in the MAF output range.

So, your ECU will see incorrect voltage from the f150 maf for any given amount of intake air. And since the ECU adds fuel in relation to the metered air (among other inputs), at all points in the rev range the MAF voltage would be lower than stock, thus resulting a less fuel and a lean condition.

Now, I do not know this for certain, but I think my assumptions are fair.

ex. (hypothetical numbers)
Stock f150
f150 idle - .1V = 100 units of air
f150 wot - .5V = 500 units of air
stock SVT
SVT idle - .1V = 75 units of air
SVT wot - .5V = 375 units of air

f150 on SVT (untuned)
idle - .075V = 75 units of air
wot - .375V = 375 units of air
 
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