Tuning a LMAF (PICS)

mustangt562 · Aug 1, 2006

Ok fellas, what is the deal?!?! EVERY tuner that I have talk to after I tell them I have a 90mm LMAF they go "uhh ohh well uhh you should get a c&l" or "ohhh ahh I can do it but its a pain the charts on it are upsidedown, you should get a c&l". What is the d^nm deal. I researched the LMAF and I have not heard of any problems dyno tuning with one so what up. So lay it to me straght fellas. Is tuning with a LMAF difficult? Is there a secret to it that I have to find out myself then tell these jokers? Or did I just make a big mistake buying a 90mm LMAF with a aluminum adapter and the 94/95 pigtail adapter?

WhiteDevil · Aug 1, 2006

I dont know what they are talking about. C&L meters are not really very good ESPECIALLY from a tuning stand point. Lmafs are a great high quality MAF. I would have no problem loading an lmaf curve with my tweecer and using it. I would be weary if a tuner could not tune with an Lmaf.

mustang6tee8 · Aug 2, 2006

sorry to go off topic a little, but I'm assuming a LMAF is a Lightning MAF??

BlackVert · Aug 2, 2006

+1 on what WhiteDevil said

And yes, a LMAF is a Lightning MAF

ProKiller · Aug 2, 2006

i've never heard of them being a problem. my only thinking is maybe cause of the pigtail?

Mustangless · Aug 2, 2006

the tweecer software has a maf curve for it. Not sure how close it is, but I have heard that its a good tuner meter.

Daggar · Aug 2, 2006

From what I understand (I've not actually done this yet) the LMAF meter is absolutely no harder to tune for than any other meter that you do not have the flow sheet for. It's true that there is meter data available with the TwEECer software but its not for the family of ECUs that reside within the Fox/94-95 cars. The clock cycle differences between the ECU and the ECU on Lightning appear to be the primary issue. Having said that, it is totally possible to use that TwEECer transfer function as a base line then tune it up and make it right for your ECU. There is a companion program out that was constructed by one of the TwEECer users called "EA", I believe. One of it's saving graces is that it is supposed to be very good at fine tuning the transfer function. Check out the TwEECer forums at http://eectuning.org/forums/index.php

You should be able to find the answers you're looking for there. You may even find someone with a similar combo to yours that'll have a modified transfer function that's closer to what you need than the reference table that comes with the TwEECer.

Hope this helps.

Pokageek · Aug 2, 2006

Your tuners are incorrect. I would find another one. BTW, where did you get that adapter?????

mustangt562 · Aug 2, 2006

Pokageek said:
Your tuners are incorrect. I would find another one. BTW, where did you get that adapter?????

http://www.musclemotors.com/index.asp?PageAction=VIEWPROD&ProdID=1066&HS=1

95Vert · Aug 2, 2006

I can't remember the name of the guy, but he posts here. Dan, I believe. I called for a chip, and he told me that the LMAF is the best maf to get. The c&l sucks. The Pro-M is better, but the LMAF is better than both. You have a good maf, just find a decent tuner.

Pokageek · Aug 2, 2006

mustangt562 said:
http://www.musclemotors.com/index.asp?PageAction=VIEWPROD&ProdID=1066&HS=1

Sorry, I meant the aluminum one..

mustangt562 · Aug 2, 2006

Pokageek said:
Sorry, I meant the aluminum one..

MTB950094
http://www.rpmoutlet.com/mus03maccai.htm

final5-0 · Aug 2, 2006

Daggar said:
From what I understand (I've not actually done this yet) the LMAF meter is absolutely no harder to tune for than any other meter that you do not have the flow sheet for. It's true that there is meter data available with the TwEECer software but its not for the family of ECUs that reside within the Fox/94-95 cars. The clock cycle differences between the ECU and the ECU on Lightning appear to be the primary issue. Having said that, it is totally possible to use that TwEECer transfer function as a base line then tune it up and make it right for your ECU. There is a companion program out that was constructed by one of the TwEECer users called "EA", I believe. One of it's saving graces is that it is supposed to be very good at fine tuning the transfer function. Check out the TwEECer forums at http://eectuning.org/forums/index.php

You should be able to find the answers you're looking for there. You may even find someone with a similar combo to yours that'll have a modified transfer function that's closer to what you need than the reference table that comes with the TwEECer.

Hope this helps.

You ought to hang with us more often

You show up here ... from time to time

Out of EVERYTHING you have ever posted here ...

About 99% I have agreed with OR atta-boyed

Just wanted to say I appreciate your posts cause I can plainly see

You take the time to put up stuff that is factual & helpful

O Yeah ... The Original Q ... What Daggar Said

Grady

69clark · Aug 3, 2006

+1 on what dagger said. Your tuner is full of BS. I run a 90mm LMAF and have had no problems once I got the transfer function set, which wasn't far off. FIND A NEW TUNER.

Think of it this way: who has more money and resources to make a good meter, multi-billion dollar FORD or an aftermarket meter company? Not to say that the aftermarket doesn't put out great products but the LMAF has to work and work good, and it has proven itself among many tuners. It is not a bad meter. I don't know if it is the best, as I am sure its not, but it can definately be tuned on your car.

Daggar · Aug 3, 2006

final5-0 said:
You ought to hang with us more often

You show up here ... from time to time

Out of EVERYTHING you have ever posted here ...

About 99% I have agreed with OR atta-boyed

Just wanted to say I appreciate your posts cause I can plainly see

You take the time to put up stuff that is factual & helpful

O Yeah ... The Original Q ... What Daggar Said

Grady

Thanks for the kind word. I don't venture out of the Fox forums very often because you guys know a lot more about your cars than I do. There usually isn't much that I can add to what is already posted. Every once in a while though, I come across something that I've either seen/done first hand or brushed up against from interrelated research I've done on my own. Many times, when I do come across a thread in your forums that does cross into the Fox platform, I discover something that I wasn't aware of before. So my motives are purely selfish. hehe I come here and browse in an effort to learn something that I might have missed (or is missing) from the Fox forums.

Pokageek · Aug 3, 2006

mustangt562 said:
MTB950094
http://www.rpmoutlet.com/mus03maccai.htm

Thanks man!

95Vert · Aug 3, 2006

Daggar said:
Thanks for the kind word. I don't venture out of the Fox forums very often because you guys know a lot more about your cars than I do. There usually isn't much that I can add to what is already posted. Every once in a while though, I come across something that I've either seen/done first hand or brushed up against from interrelated research I've done on my own. Many times, when I do come across a thread in your forums that does cross into the Fox platform, I discover something that I wasn't aware of before. So my motives are purely selfish. hehe I come here and browse in an effort to learn something that I might have missed (or is missing) from the Fox forums.

I really wish I had the patience to do this. I'm trying to get more involved and read more but it's gets frustrating at times cause I'm not actually doing the labor. I'm a 'learn as you go' type of guy, which is not always the best bet. This website has taught me a lot and I will always be on here with whichever question I may have.:SNSign:

Tuning a LMAF (PICS)

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