Why do people put 70mm TB's on 96-98 GT's

[tireburner163]

Okay, so you state right in your defense that the Lightning MAF flows 56#, but a stock 4.6 uses less than 30#. You also state because of that, you'll be using just a small portion of the MAF's range and you won't have good enough fuel control. Sounds like you're agreeing with me already. To go on, you state you picked up .57sec and 2mph. Well, since 2mph will generally get you more like 2-3 tenths in the 1/4, that would mean you must have had a better run. Not to mention you added a chip at the same time, which are well known for increasing performance on the AOD-E 4.6's. It's kinda like saying you picked up 2 seconds with a new MAF... and a supercharger. Not too hard to figure out which part was really helping. Finally, you say you'll be right in the range of the Lightning MAF with your N20. I hate to break this to you, but the N20 will have no effect on your MAF whatsoever. The N20 adds oxygen to the system AFTER the MAF reads incoming air, and it uses a seperate system to compensate for the extra oxygen. Not the factory computer, which would be able to do so if you injected the N20 in front of the MAF.Your displacement won't be increased, nor will your rpms, or flow numbers, therefore your N20 isn't going to help your over-sized MAF problem.Most MAF's increase power on stock vehicles because aftermarket manufacturer units are more accurate than OEM parts. If you run into modified cars, you need more flow than the stock unit can provide. Ever notice the 5.0's can put down 250hp with the stock 55mm MAF