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Discussion Starter · #1 ·
Ok, to start off with, whats the diameter of the stock MAF?
Next, my buddy is willing to give me his old MAF off his crown vic...I think its 70mm. Would that work on an escort to get a little more power out of it?
And lastly, how much of an improvement would I see if I was able to put on the 70mm MAF and a 3.6l throttle body?
 

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That MAF does not match your injectors, so your Escort wont even run if you tried it.

The MAF is not the most restrictive part in the air flow path, your head/valves and intake manifold is. So by increasing the TB and MAF, there is very little to gain if you dont increase the rest of it.
 

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the stock maf housing you have now is big enough to flow air for 300hp.

the actual sensor itself is good for about half that.
 

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the stock 1.9 SEFI intake manifold is a very nice decent flowing economical one.. does it make max power with max flow? no..

the amount of fuel differential and air flow to each cylinder is so small i wouldnt worry about it too much. if it was a problem it would have been solved at the engineering plant.
 

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If i have the time, money, and access to a mig welder this summer I'm welding up a new upper manifold. Take that puny tube out and design a box that is exactly half the engine displacement... I'll add those bell shaped things if i can find some premade ones or press some myself.

Sorry i forget the exact terminology.

To awnser your first question. Yes the 3.8 throttle body makes a great difference!!! It's nice on the highway, you don't have to press the gas pedal as much. The small tb you have to keep almost 1/3 the way open to go 65-70 almost anywhere...

- Nick
 
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