Ok let’s talk about MAFs.
Let me begin by saying “MAF” is smaller in length than the minimum FF character length search requirement so forgive me if this has been covered before. I’ve been thinking about larger MAFs as just looking through the outward port of my airbox, it is clear that there is a very narrow bottleneck there. Now I know that you can get MAFs larger than my stock 55mm(?) item from Ford but this is expensive and I had a few thoughts floating around in my head.
Firstly allow me to ask for clarification on what a larger MAF does with regards to voltage output. My standard MAF provides the ECU with a voltage range that it uses to quantify the amount of fuel to inject. Do the larger MAFs supply a greater voltage range? If not, it seems to me that more air will be passing through the larger MAF aperture on the bigger MAF than the computer thinks. If you’ve got more air flowing through the MAF for the same given MAF voltage output you’re going to lean out your AFR aren’t you?
Secondly, I’ve heard that the availability of LS1 MAFs is reasonable and that they represent a somewhat compatible Windsor upgrade option. For this to be considered, they’d have to be reasonably cheaper than the Ford option and from what I’ve heard from Ford parts, this may be the case. Now is there any truth to this? Do the LS1 MAFs talk to the ECU in the same manner as the Windsor unit (ie a single sided or differential voltage signal – one/two or two cables respectively)? The voltage ranges may be different but this is not a problem. I can design and manufacture interface circuitry to convert and calibrate an alien MAF voltage range into a range suitable for EEC-V. The LS1 MAFs seem to measure air parameters differently. Attached is a pic that I found – it is an SS inductions unit but presumably similar to the original unit.. No mesh. Has this been done? Any potential problems?
Thirdly, I got to thinking about the cost of upsizing MAFs and then wondered how expensive it would be to have a simple cylindrical plate (like the herrod air injection pipe thingy) manufactured and fit the standard MAF wire in between the plates. The MAF mesh just needs to cover the entire aperture doesn’t it? Is the mesh wider than 55mm on the stock item so that this could be accommodated? Is there anything I’m missing?
Let me begin by saying “MAF” is smaller in length than the minimum FF character length search requirement so forgive me if this has been covered before. I’ve been thinking about larger MAFs as just looking through the outward port of my airbox, it is clear that there is a very narrow bottleneck there. Now I know that you can get MAFs larger than my stock 55mm(?) item from Ford but this is expensive and I had a few thoughts floating around in my head.
Firstly allow me to ask for clarification on what a larger MAF does with regards to voltage output. My standard MAF provides the ECU with a voltage range that it uses to quantify the amount of fuel to inject. Do the larger MAFs supply a greater voltage range? If not, it seems to me that more air will be passing through the larger MAF aperture on the bigger MAF than the computer thinks. If you’ve got more air flowing through the MAF for the same given MAF voltage output you’re going to lean out your AFR aren’t you?
Secondly, I’ve heard that the availability of LS1 MAFs is reasonable and that they represent a somewhat compatible Windsor upgrade option. For this to be considered, they’d have to be reasonably cheaper than the Ford option and from what I’ve heard from Ford parts, this may be the case. Now is there any truth to this? Do the LS1 MAFs talk to the ECU in the same manner as the Windsor unit (ie a single sided or differential voltage signal – one/two or two cables respectively)? The voltage ranges may be different but this is not a problem. I can design and manufacture interface circuitry to convert and calibrate an alien MAF voltage range into a range suitable for EEC-V. The LS1 MAFs seem to measure air parameters differently. Attached is a pic that I found – it is an SS inductions unit but presumably similar to the original unit.. No mesh. Has this been done? Any potential problems?
Thirdly, I got to thinking about the cost of upsizing MAFs and then wondered how expensive it would be to have a simple cylindrical plate (like the herrod air injection pipe thingy) manufactured and fit the standard MAF wire in between the plates. The MAF mesh just needs to cover the entire aperture doesn’t it? Is the mesh wider than 55mm on the stock item so that this could be accommodated? Is there anything I’m missing?