Another GM MAFT thread Options

[KOU In3]

Ok, I'll be upfront that I'm just being a bit of a Devil's Advocate here. I like the MAFT and from what I hear, I'll probably end up owning one. I've plowed through most of the DSMtalk threads on it too. But, just to cause trouble I'll ask the following from those of you that have it.

Anyone have any concrete dyno numbers or even track numbers and actual gains from this mod? Before and after improvements?

I know the 3.5 in flows like the Mississipi in and of itself but when you neck down to the throttle body is all that flow lost and even disturbed by all the steps to get it to mate up? The 2G MAS looks to be pretty close to a 3" MAS flowing more or less straight through.

Although tuneable, can it match the increments of the SAFC in terms of fine tuning?

Granted, everyone who's bought one seems to love it. I'm just wondering if anyone's truly dialed it in on the Dyno and done a side by side with the 'old' SAFC 2G mas combo.

OK, flame suit is on. Time to endure the punishment of the translators.

[natedogg]

I think flow before the turbo and after the turbo are two different monsters. Flow before it isn't pressurized, its being sucked in like a N/A car. After the turbo the air is pressurized so you can flow more because you are forcing it into the engine rather than sucking it into the engine like a N/A car. The turbo is the deciding factor on how much flow your car sees. It doesn't care what the piping after it looks like, because its going to force the air in there anyway. Don't get me wrong, bigger IC piping is better for higher flowing turbos because the turbo doesn't have to work as hard to push the air, but it still will push the air. I'm sure there comes a point where upgraded IC piping is required (eg. Running a monster L3R on stock IC piping) just for the turbo to spool up. But you could have a small 16g running on stock IC piping still flowing 505 cfm at 15 psi whether the piping behind it is stock or upgraded. If our cars were N/A, then I'm sure the (now unnecessary) IC piping would flow maybe 250-300 cfm (guessing), but hell the stock 14b flows more than this at the stock boost pressure.

Anyway the point is flowing more is the whole point of a turbocharger. If the piping behind the turbo was going to limit the amount that it could flow to what the piping itself would flow naturally, then turbos would be useless.