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]

The MAFT definitely can't match the fine tuning of the SAFC (1% increments on SAFC vs. 5% increments on MAFT), but at the same time it seems to be less finicky than the SAFC. When I had the SAFC on my FWD I was always f-ing with it to get my car to run just the way I wanted it to. With the MAFT, it took a few tuning sessions with the logger and I was done. (Well, I'm never really done with this damn car, but you know what I mean.) Plus, if you really don't want to let go of the SAFC you can use it in conjunction with the MAFT. Just set the MAFT's base setting for your injectors, leave the rest of the MAFT dials at 0 and do all your tuning with the SAFC.

I personally don't have any dyno numbers, but I think AMS is supposed to be dyno proving one sooner or later. I hear they've been pretty busy developing mods for the EVO though.

I've never seen any concrete flow numbers on the 2G MAS, but I know the 3" GM MAS flows up to 800 CFM and the 3.5" flows up to 1000 cfm. I kinda doubt the 2G MAS can match those numbers.

The main reasoning behind removing as many intake restrictions as possible on the intake side of the turbo is the simple fact that turbos are designed to blow, not suck. The less turbo intake restrictions, the less the turbo has to work to spool up and hit max boost, hence quicker spool up and more power.

I think one more plus is the simplicity. Installing the GM MAFT in draw-through form is truly a 15 minute job and tuning it to perfection doesn't take much longer. Perhaps a couple of hours on a country road...or in front of my asshole neigbors' houses.