Can you put a 90" Light. MAF on a 4.6ltr. ?

Would it increase hp at all?

 

Yes, you can put it on but by itself I wouldn't expect a great deal out of it. Matched to a set of larger injectors with a chip burned to calibrate the modifications,
though expensive it might be worth while. I'm sending my chip in on Monday to have reburned for this exact process. I had to wait until the rest of the parts were here prior to doing it. I also put a larger fuel pump in to support the rest of the mods my truck has.

 

Sounds good. I already have the K&N FIPK and the cat-back flows.
I've recently asked Mike T. in the computer chip forum for info on a Superchip.

I'll add the MAF to the to-do list.

thanks.

 

I would save my money. You will not gain anything performance wise with your current mod's. The stock meter flows more than enough air. Most gains from a meter (aftermarket) change is because of the way in which they are calibrated they advance timing and lean out A/F ratios. (Which in a forced induction(IE lightining), or nitrous application is excatly what you don't want.)

A MAF works by heating an element in the airstream to 200C above ambient air temp, air passing over this element cools it, the computer will then increase the voltage to the unit to maintain the 200 degrees. It uses this voltage reading (a span of 1-5 volts) to determine the airflow.

Now picture a bigger meter calibrated to the same injector size, decrease the airspeed, less cooling effect, less voltage to keep it at 200 degrees. same amount of air, however it's velocity is less(because of the increase of volume within the meter) and will send the voltage of a lesser airflow.
(like blowing through a straw then a papertowel tube, you can move the same amount of air, however velocity is different)

Your motor uses 1.5 CFM per horsepower, it will only draw in what it can process, the stock meter is in no way hindering airflow.

There are plenty on places online where you can get airflow numbers for the different meter sizes. One of the major reasons Ford switched meter size on the Lightining, was many people would switch out a meter for a bigger one(not even needing it), and run too lean.......For the reasons mentioned above.
By putting on a larger meter, they hoped that most people would not see a need for a bigger MAF, and keep meltdowns from occuring.

Mike T (Superschips dist)will even tell you, a chip would have to be recalibrated to relect the changes in airflow, if a MAF is swapped out.

 

Makes sense. I'd have to adapt my whole system. I think I'll just go with the Chip...I'm not a hot rodder!