Can A MAF be used with AF1
Thread Starter
|
Member
Joined: Jan 2004
Posts: 14
Likes: 0
From: Alabama
Can A MAF be used with AF1
Can a mass airflow sensor be used with a aftermarket air intake system. Where does it mount.
Has anyone used this combination if so what brand intake and MAF? Where you pleased with the results? Where the performance gains noticeable?
I am considering a few performance mods for my 2003 FX4 4.6L
Has anyone used this combination if so what brand intake and MAF? Where you pleased with the results? Where the performance gains noticeable?
I am considering a few performance mods for my 2003 FX4 4.6L
Last edited by tbbailey; Jan 28, 2004 at 11:31 AM.
Thread Starter
|
Member
Joined: Jan 2004
Posts: 14
Likes: 0
From: Alabama
Atermarket MAF
What I was asking about were some of the afterkarket Mass Air Sensors such as Granatelli. I've never heard of having a chip burned from what I have read. Although I am kinda new to Ford vehicles.
Thanks I'll look into this
Thanks I'll look into this
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
Hi tbbailey,
Yes, you *can* use an aftermarket MAF with an Air Force One intake, but we do NOT advise doing so on any stock or even remotely close to stock truck like yours - in short, forget about changing the MAF unless you install a supercharger in any 1997-2003 V8 F-150 or Expedition, etc.
Your truck already has an 80mm MAF on it from the factory, and even if it actually needed to be upgraded due to numerous significant modifications, the smart tip is to use the 4-wire 90mm MAF from the 2001-2002 Lightning.
However, remember that *any* time you change the MAF, whether you use an aftermarket unit or a larger Ford unit, your engine will go very lean as a result, and in many cases *dangerously* so - and the MAF manufacturers will not tell you that, they will usually tell you just the opposite, that it does *not* require any tuning changes - hogwash, as can quickly be seen with looking at the data thru the OBD-II port. So if you change the MAF, you will *have* to have a custom tune done, and it will require full chassis dyno testing & data acquisition to do it right. We can do all of that for you, but I do not advise doing that unless you install a supercharger, as you just don't need it and will not see significant power gains by doing that.
Whatever you do, PLEASE do not EVER make such a change without FIRST talking to a top-shelf F-150 tuner for advice - and at the risk of sounding like an obvious sales-dude, preferably us, as we know the tuning in these trucks very well, having specialized in them for many years.
The bottom line is, your stock MAF is fine for over 400 HP - thus I do NOT advise spending money to change it unless you supercharge the engine, as it's just not a good bang for the buck mod - I know that sounds funny as we sell those parts, but trust me, there are *far* better bang for the buck mods than any MAF at this point for your truck - forget the 17 HP gains claimed by Granatelli & other manufacturers for their MAF's for example, as that simply is not going to happen in any sustainable manner - you might see a 5-8 HP gain on your truck *after* the custom tune to compensate for the MAF change by writing a completely new transfer function.
Any vehicle making more than 400 HP (supercharged or not) but less than about 700 HP in normally aspirated trim or not more than 600 HP in supercharged trim should stick with the Ford 90mm MAF from the 2001 & up Lightning, as their calibrations are far more consistent - and that is only *if* the MAF really needs to be upgraded.
What I would suggest is to give us a call to go over just exactly what you've done to your truck so far, and we can advise you as to what will actually give you the best value for your performance dollars so you can give that some thought before making your decisions & spending your money.
One last point - Pro-M offers a remote optimizer that allows to to make some gross adjustments to it's calibration, but that still is *not* the correct way to dial in a MAF change, as you usually end up with the PCM pulling from the wrong places in the spark tables as a result, and even without detonation better performance & driveability can be had with proper tuning - the *only* way to do that right is to get it on a chassis dyno and do full data acquisition so you can see just what the MAF is actually doing on *that* vehicle, and then rewrite the transfer function and continue tweaking it on the dyno until the A/F's being delivered are the same as what is actually being commanded in the PCM's programming. Pro-M in particular, while a nice MAF in general and I like Jim (the owner) & other people there, is extremely inconsistent in their calibrations, one of the reasons Granatelli dropped them - Pro-M used to make all of Granatelli's MAF's until just recently. I know this is all probably beyond your knowledge at this point (as it is to most others, too), so don't worry, just give us a call to go over this and get a good understanding of it, and what will give you much better results, etc.
Best of luck whatever you decide,
Yes, you *can* use an aftermarket MAF with an Air Force One intake, but we do NOT advise doing so on any stock or even remotely close to stock truck like yours - in short, forget about changing the MAF unless you install a supercharger in any 1997-2003 V8 F-150 or Expedition, etc.
Your truck already has an 80mm MAF on it from the factory, and even if it actually needed to be upgraded due to numerous significant modifications, the smart tip is to use the 4-wire 90mm MAF from the 2001-2002 Lightning.
However, remember that *any* time you change the MAF, whether you use an aftermarket unit or a larger Ford unit, your engine will go very lean as a result, and in many cases *dangerously* so - and the MAF manufacturers will not tell you that, they will usually tell you just the opposite, that it does *not* require any tuning changes - hogwash, as can quickly be seen with looking at the data thru the OBD-II port. So if you change the MAF, you will *have* to have a custom tune done, and it will require full chassis dyno testing & data acquisition to do it right. We can do all of that for you, but I do not advise doing that unless you install a supercharger, as you just don't need it and will not see significant power gains by doing that.
Whatever you do, PLEASE do not EVER make such a change without FIRST talking to a top-shelf F-150 tuner for advice - and at the risk of sounding like an obvious sales-dude, preferably us, as we know the tuning in these trucks very well, having specialized in them for many years.
The bottom line is, your stock MAF is fine for over 400 HP - thus I do NOT advise spending money to change it unless you supercharge the engine, as it's just not a good bang for the buck mod - I know that sounds funny as we sell those parts, but trust me, there are *far* better bang for the buck mods than any MAF at this point for your truck - forget the 17 HP gains claimed by Granatelli & other manufacturers for their MAF's for example, as that simply is not going to happen in any sustainable manner - you might see a 5-8 HP gain on your truck *after* the custom tune to compensate for the MAF change by writing a completely new transfer function.
Any vehicle making more than 400 HP (supercharged or not) but less than about 700 HP in normally aspirated trim or not more than 600 HP in supercharged trim should stick with the Ford 90mm MAF from the 2001 & up Lightning, as their calibrations are far more consistent - and that is only *if* the MAF really needs to be upgraded.
What I would suggest is to give us a call to go over just exactly what you've done to your truck so far, and we can advise you as to what will actually give you the best value for your performance dollars so you can give that some thought before making your decisions & spending your money.
One last point - Pro-M offers a remote optimizer that allows to to make some gross adjustments to it's calibration, but that still is *not* the correct way to dial in a MAF change, as you usually end up with the PCM pulling from the wrong places in the spark tables as a result, and even without detonation better performance & driveability can be had with proper tuning - the *only* way to do that right is to get it on a chassis dyno and do full data acquisition so you can see just what the MAF is actually doing on *that* vehicle, and then rewrite the transfer function and continue tweaking it on the dyno until the A/F's being delivered are the same as what is actually being commanded in the PCM's programming. Pro-M in particular, while a nice MAF in general and I like Jim (the owner) & other people there, is extremely inconsistent in their calibrations, one of the reasons Granatelli dropped them - Pro-M used to make all of Granatelli's MAF's until just recently. I know this is all probably beyond your knowledge at this point (as it is to most others, too), so don't worry, just give us a call to go over this and get a good understanding of it, and what will give you much better results, etc.
Best of luck whatever you decide,