ribs

But with all of this discussion of MAF kits, building your own ghetto kit, etc. I have been doing a lot of research into the cheaper alternatives, and have found a couple of MAFs that would be attainable from a junkyard for cheap that could be used for my car with proper signal massaging, and would have the proper girth and CFM flowrate to make them a worthwhile upgrade. The best ones I have found are: '85-'89 corvette/camaro/firebird/other SBC TPI motors, and '92 (?)+ mustang, thunderbird, V8 trucks (I think lincoln navigator is the biggest MAF). The only problem is that the voltage signal outputted by the MAF sensor has a lower voltage at idle (.4 volts on most of them) and a more of a parabolic airflow to voltage curve than the stock AFM. So...I would need to either come up with a black box that translates the voltage from the MAF to the proper voltage for the airflow rate from the AFM (like TT did), or use an aftermarket piggyback computer/signal massager to do just this. There are a couple that are made for this purpose, like the 2 adjustment proflow box, or the split second ARC2, but a much more programmable, adjustable, and more feature rich box that recently has been brought to my attention is the apexi S-AFC as something that may work for these purposes...does anybody know if they have the range of adjustment to make up the large differences between the MAF flow/voltage curve and the AFM flow/voltage curve? Any other smarter alternatives out there? Am I psychotic for thinking I can make something like this work without spending $1200 on a kit? Gotta go...cya.

instigator

Ribs im with ya on the outragous cost for this conversion thats why i started the map conversion thread. i was doing the math for some of the units out there with all the stuff thats included with them it sounds about right.. the arc2 is about $500 the maf itself is about $200 the arm1 $100 so about $800-$1000 looks to be the norm here, but they are all adjustable systems and all i want right now is just a replacment system to get rid of the afm, now on the other side of the coin the adjustable unit give you some room to play around with i.e bigger injectors, SC , etc..

when its all said and done i'm probably going to go with the pro flo setup $605 and it comes with a 2 **** signal conditioner i guess its like the arc1 but its cheaper than any other unit provided by the porsche tuners (lyndsey, huntley, speedforce)

Luke

ribs,

I have a pro flow. It is calibrated for the 951 and is also adjustable. Im sure that with a god set of chips and an adj. FPR it will do just as a good a job as n/e of the others. They go for $575 from <a href="http://www.modernperformanceinc.com" target="_blank">www.modernperformanceinc.com</a> I have several that I've installed along with this MAF and will see how good it works very soon on the dyno when I tune it. Dont dis regard pro flow just yet.

instigator

hey luke is it the one for the 2.3 turbo stangs? they look like they have them for $465 now

Luke

I beleive that is a different PRO FLOW model. Very simialr though. The 2.3's are in everything from stang's, rangers , and my buddie's Merkur!!! The kit is a general replacment for Bosche VANE meter's. It makes sense. It works in so many applications. It has been applied in so many ways. That fact that people doubt it's performance becasue of the price really irritates me. BECUASE this thing is STILL OVERPRICED. $600 is too much for a MAF. But every body is used to looking at units that cost twice as much as that. You can get a MAF for a 99' SVT cobra for $300. We are getting screwed left and right on things like this and some people would rather just "bend over" (pardon my french).

951and944S

Ribs, check out a Ford Explorer with 4.0 liter, youl have to fish it out of the airbox, it's kinda made together, which makes it a perfect candidate.If you see one hit moderately when passing a body shop, chances are the airbox is damaged, and the insurance pays for the whole ox, including the MAF. Stop a visit, at your local BS and put the word out, you can get one for free..!

Instigator, your absolutely right, in your points, especially on the ARC and ARM. It's not the MAF that cost so much, even in the big 3 tuners kits.

Luke, your close to running now right..?
Have you spent much time assembling since the arrival of the turbo..?

Luke

Then why does the autothority kit cost so darn much. Don't tell me chips cost that much. Sure it may inconvience them to custom burn a set, but not for $1500+!!!

Rob

[quote]Originally posted by ribs:
<strong>but a much more programmable, adjustable, and more feature rich box that recently has been brought to my attention is the apexi S-AFC as something that may work for these purposes...does anybody know if they have the range of adjustment to make up the large differences between the MAF flow/voltage curve and the AFM flow/voltage curve? </strong><hr></blockquote>

From The Apexi website "The S-AFC features a user-definable, eight-point, adjustable fuel curve that can be set in 500 RPM increments. The range of fuel adjustment is +/- 50% at each of the user-defined setting points."

I don't know if this is enough of an adjustment or not for an afm to maf conversion without seeing the data for both, but it might not provide enough adjustment at the low end of the scale. It would be interesting to know.

Later,
Rob

951and944S

Luke, [quote] Sure it may inconvience them to custom burn a set, but not for $1500+!!! <hr></blockquote>
Yeah chips are cheap..

Seriously Luke, if you can undertake the repairs, your making, then why not save the change and repair your own tranny.
I've been an independant trans repair shop for 15 years, I started at a GM dealer as a trainee and looked around my first week there, and thought, "Hmm, tune up men do brake repair, front end specialist can do engine repair, but these two guys doing the tranny repair were in their own special area, noone bothered them, cause noone could do what they do".
It was at this time I decided, it's a specialty, people are scared of a transmissions, because they don't understand the pricipals of opperation.
I laugh to myself all the time Luke, shops from all over my area, as far away as 100 miles send me the units for repair, after they do all the hard work, the R & I...!
Properly planned, your tranny repair is a piece of cake.

Just repeat, "I'm not going to pay alot for this trans repair". Do some research Luke, will the hardened S gears fit your tranny...?
If so, I vow to assist via email if you wish.
Pretty sure I have exploded veiws of your unit.

Cheers..

ribs

Didn't even read, but ( HAD 98 REPLIES IN MY ONIN BOXY. I have to stop drinking (home alone again tonite, despiitee visitiing ithe meat market and sampling some of the prime cuts).

ribs

Damn...I don't remember posting that last night. I need to get one of those breathalizer things (you know...the ones they hook up to your car's ignition for people who have had 3 DWI's) for my computer...don't worry...I don't drink and drive. Anyways, thanks for the replies guys. The guy that owns the performance shop down the way has a couple of those apexi units laying around, so I'll ask him if I can wire one up and play with it. Interesting about the 4.0L ford explorer...I have a friend who has one, so maybe I'll steal it out of his car...or...maybe not. I'm going to look into more of the ford MAFs as they seem to be the way to go. I would like to keep the whole deal under a couple hundred $$$, which shouldn't be too hard (I think the apexi S-AFC is $220 or so). Does anybody have experience with the apexi S-AFC on our cars or other cars? I would like to learn more about it (I looked over the spec sheet and documentation, and it looks like a very good signal massager that also reads off of your O2 sensor for self adjustments). Cool stuff...now I have to go to gym class half hungover...not much fun. Later.

Luke

[quote]Originally posted by 951and944S:
<strong>Luke,


Seriously Luke, if you can undertake the repairs, your making, </strong><hr></blockquote>


I totally agree. That's my philosophy actually. I got a great deal on an LSD tranny (mine's an open). I wasn't interested in finding somebody with a 10ton press. But my tranny is for sale. ($350) It's worth $600 as a core charge.

instigator

hey guys check out the link of a thread from the upgrades/mods section <a href="http://forums.rennlist.com/scripts/rennforums/ultimatebb.cgi?ubb=get_topic&f=11&t=000150" target="_blank">http://forums.rennlist.com/scripts/rennforums/ultimatebb.cgi?ubb=get_topic&f=11&t=0001 50</a>
looks like we might have a winner here(got fingers crossed)
also heres the web site fir them <a href="http://www.engineered.net/" target="_blank">http://www.engineered.net/</a>