I have reservations about using these types of MAF signal tuners to run a MAF and injector that are grossly mismatched, but they should work fairly well for fine tuning.
I may be completely wrong, but I have yet to hear from anyone who has used one of these.
Anyone have experience?
I looked at this and sent a few emails to AFM about it. The answers were too short for me so I started a thread about it on
www.SBFTech.com
Brian from AFM responded to the thread and in a nut shell, this is what its supposed to do.
For the 395.00 purchase price, you get the LOADio computer, a 90mm LMAF with adapter plug, Powerstak air filter and bell adapter.
I asked if with this product, you could install the LMAF and any size injector from 19lb to 50lb and have the car idle smooth and still provide the extra fuel needed. I was told yes.
You install the kit and down load the LOADio program from AFM. After that, you can download programs that tune the MAF for different size injectors from 19lb to 50lbs. Brian said that with this kit, you can tune it so your car idle smooth without the overly rich smell, then when you get into it, the injectors will act as the larger injectors that they are, providing you with the fuel you need.
The base tune that is in the larger injector program will get you up an running, then with the LOADio, you can fine tune the program at 40 different points to meet your needs. The only point it wont change is at start up, so with larger injectors you will probably still have a hot start or flooding issue.
The example I provided him was this:
I was under the impression that with the LOADio, that I wouldn't have the rich choking exhaust smell issue at idle while retaining the benefits of the larger injectors and MAF as need increased.
You said that the calibration can be adjusted after the program is loaded. So If I installed 42's with the LOADio, I would download the program for 42's from the AFM website and install it into the LOADio/MAF. After that, what adjustments can I make?
If after installing the base program for the larger injectors, I notice that it idles like a dream and the AF ratio is good until I get into boost (lets say 4000 rpm for a number) then it starts to lean out, can I adjust it so that it richen up the mixture at 4k and beyond without affecting the idle quality or mixture at lower RPM's?
The response I got from Brian was this:
Yes, you can! When you get a minute, check out the software for the LOADio on our website, it's free. Get a real feel for how it works.
On a side note, you're combo before, with the 24's, could have benefited from the LOADio as well. Unless, of course, there was an underlying mechanical problem at the same time that was magnified by the maf and injector change.
Food for thought - Often, not saying it was so in your case, a perceived rich condition at idle is in fact a lean condition which caused the engine to misfire putting un-burnt fuel into the exhaust and "smelling" rich.
So it seems like a good set up. Larger MAF and Injectors that will idle like stock, provide the extra fuel needed as the engine demands it and the ability to change injector size as needed. Seems like the only place you cant control is the fuel at start up and other EEC functions like timing ect....
The thread can be viewed here.
http://sbftech.com/index.php/topic,3698.0.html
Brian stayed on top of it pretty well, so if you have other questions feel free to ask. As stated, I don't know much about this and I may be missing the big picture or not asking the right questions so it will still be a learning experience for me.