New MAF for FI guys?
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From: Waterloo, Ontario
New MAF for FI guys? I'm not sure if any of you seen this MAF yet?
http://www.abacoperformance.com/
I was talking to one of my Mustang Tuners and apparantely you can adjust the frequency so the table doesn't max out. If this holds true then it should be a great tuning aid for guys running the MAF and FI.
Any thoughts?
http://www.abacoperformance.com/
I was talking to one of my Mustang Tuners and apparantely you can adjust the frequency so the table doesn't max out. If this holds true then it should be a great tuning aid for guys running the MAF and FI.
Any thoughts?
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From: Waterloo, Ontario
Strange. Im not saying you dont know how to tune but my SD tune was much better than my Maf tune. Hell my car drives like it's stock now untill you mash the gas. No bucking,surging or anything of that nature. And I have a BIG CAM.
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I think part of the problem was the 96lb injectors. Nick Y had the same problem too-hit too many grams/cyl and the computer shuts down. Even Doug@ECS and Road Rebel have stayed away from it on C5's. I know Nick got some patches from HPT so we'll have to see if they work. In the summer I may try it again but it get's hard to drive around tuning building a VE table in the snow-lol! 
I hear yea! I had HPT do alot of editing on the silver car. There were options in the 2bar OS that needed to be s/d in order to get the car to run right. I am suprised you havent tried the 79lbs from racetronix. They are high imp and add up to around 91# ers after you add our base pressure of 59 psig.
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I hear yea! I had HPT do alot of editing on the silver car. There were options in the 2bar OS that needed to be s/d in order to get the car to run right. I am suprised you havent tried the 79lbs from racetronix. They are high imp and add up to around 91# ers after you add our base pressure of 59 psig.
I might try the 79's soon on a turbo car but it's weird that no one has tried them yet. I heard there some guys out in Australia drilling out the 60's with great success-after drilling they where like a 96.
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They didn't have them out last April/07 when I got the car out. It would of been nice to try. The 60's@80 psi(BR) where at 130%DC, I was going to try the 75's from RC but one of my Mustang buddy's talked me out of them. The 96's where pretty easy to dial in-Slowhawk helped out here.
I might try the 79's soon on a turbo car but it's weird that no one has tried them yet. I heard there some guys out in Australia drilling out the 60's with great success-after drilling they where like a 96.
I might try the 79's soon on a turbo car but it's weird that no one has tried them yet. I heard there some guys out in Australia drilling out the 60's with great success-after drilling they where like a 96.
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8 sec potential, 12 sec slip
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So would that MAF be a direct replacement for the stock MAF and then the stock computer can read it? How do you calibrate the stock OS with say HPT to use this MAF?
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From: Norn Iron
They didn't have them out last April/07 when I got the car out. It would of been nice to try. The 60's@80 psi(BR) where at 130%DC, I was going to try the 75's from RC but one of my Mustang buddy's talked me out of them. The 96's where pretty easy to dial in-Slowhawk helped out here.
I might try the 79's soon on a turbo car but it's weird that no one has tried them yet. I heard there some guys out in Australia drilling out the 60's with great success-after drilling they where like a 96.
I might try the 79's soon on a turbo car but it's weird that no one has tried them yet. I heard there some guys out in Australia drilling out the 60's with great success-after drilling they where like a 96.
Im going to 16 injectors instead. The 60lb Siemens just work too well. May as well use 16 of them !!!
My ecu can do it without me even thinking about it, so it makes sense.
Ive been using the RC 73lb's....I'll be glad to get rid of them, although they have worked ok.
I'm not sure if any of you seen this MAF yet?
http://www.abacoperformance.com/
I was talking to one of my Mustang Tuners and apparantely you can adjust the frequency so the table doesn't max out. If this holds true then it should be a great tuning aid for guys running the MAF and FI.
Any thoughts?
http://www.abacoperformance.com/
I was talking to one of my Mustang Tuners and apparantely you can adjust the frequency so the table doesn't max out. If this holds true then it should be a great tuning aid for guys running the MAF and FI.
Any thoughts?
I almost went with this one before my last dyno tune, but ended up talking myself out of it becuase Bryan from PCM's for less is a master at taking care of the PE tables once the MAF is maxed out, so I thought I'd save the money and just stay with my stock descreened MAF.
You are correct though about how MAF cars are better than the SD tunes, as they are hardly ever accurate as the atmospheric changes constantly occur and you have nothing to take it into account and change things like having a MAF would.
Last edited by CALL911; Feb 17, 2008 at 08:04 AM.
Here's the same concept MAF from LPE> http://www.lingenfelter.com/store/ln4232.html
I almost went with this one before my last dyno tune, but ended up talking myself out of it becuase Bryan from PCM's for less is a master at taking care of the PE tables once the MAF is maxed out, so I thought I'd save the money and just stay with my stock descreened MAF.
You are correct though about how MAF cars are better than the SD tunes, as they are hardly ever accurate as the atmospheric changes constantly occur and you have nothing to take it into account and change things like having a MAF would.
I almost went with this one before my last dyno tune, but ended up talking myself out of it becuase Bryan from PCM's for less is a master at taking care of the PE tables once the MAF is maxed out, so I thought I'd save the money and just stay with my stock descreened MAF.
You are correct though about how MAF cars are better than the SD tunes, as they are hardly ever accurate as the atmospheric changes constantly occur and you have nothing to take it into account and change things like having a MAF would.
I agree, Ben. Brent tunes with stock maf's on a lot of the cars we build, such as the C5 shown here. We also prefer to keep the front 02 sensors on as well. http://www.exoticperformanceplus.com...Car.php?car=40 Bob
Alot of tuners prefer the MAF because it takes less time and it will correct tables that are off or temp/elevation changes which you need to know the correction factors going OLSD.
In my eye's nothing beats OLSD on a FI or big cam car.If you know what you are doing the car will run perfect and correct itself in all weather,elevation changes. Also we have our Vette running perfect with 96lb injectors toping out at 20-22lbs of boost in OLSD.
Don't get me wrong.We still have FI cars running 16-18lbs on stock MAF's but SD without the MAF's just runs better.
In my eye's nothing beats OLSD on a FI or big cam car.If you know what you are doing the car will run perfect and correct itself in all weather,elevation changes. Also we have our Vette running perfect with 96lb injectors toping out at 20-22lbs of boost in OLSD.
Don't get me wrong.We still have FI cars running 16-18lbs on stock MAF's but SD without the MAF's just runs better.
Alot of tuners prefer the MAF because it takes less time and it will correct tables that are off or temp/elevation changes which you need to know the correction factors going OLSD.
In my eye's nothing beats OLSD on a FI or big cam car.If you know what you are doing the car will run perfect and correct itself in all weather,elevation changes. Also we have our Vette running perfect with 96lb injectors toping out at 20-22lbs of boost in OLSD.
Don't get me wrong.We still have FI cars running 16-18lbs on stock MAF's but SD without the MAF's just runs better.
In my eye's nothing beats OLSD on a FI or big cam car.If you know what you are doing the car will run perfect and correct itself in all weather,elevation changes. Also we have our Vette running perfect with 96lb injectors toping out at 20-22lbs of boost in OLSD.
Don't get me wrong.We still have FI cars running 16-18lbs on stock MAF's but SD without the MAF's just runs better.
We've done a lot of our customer's cars both ways as well, such as Anthony Peck's Trans-Am that would hardly run when he drove it off the trailer for us to tune, after another shop had tried to tune it SD. Once we tuned it SD as well the car purred. http://www.exoticperformanceplus.com/hotCars.php?car=70 Bob
i think the problem with MAFs are in the ECM,
the MAF table only goes so high.
maybe a COS with higher MAF table values like some COS
with a boost VE table would be an option.
the MAF table only goes so high.
maybe a COS with higher MAF table values like some COS
with a boost VE table would be an option.
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This MAF is completely different than the LPE, the LPE will still max out as nothing has changed but the size the of the meter. This new meter will allow you to change the frequency so you don't max it out.
I do like the SD tunes for big power but Nick and I had the same issues with the throttle closing-this required alot "tweaking" by HPT to eliminate that. I had to reduce my VE table by 50% so I wouldn't hit the 2.32 gram/cyl and put the car in reduced power mode. That's fine and I can work around it, while it is a PIA but for customer who doesn't want to mess with the car the MAF i still the way to go.
If this new sensor works, the end user will really benefit.
I do like the SD tunes for big power but Nick and I had the same issues with the throttle closing-this required alot "tweaking" by HPT to eliminate that. I had to reduce my VE table by 50% so I wouldn't hit the 2.32 gram/cyl and put the car in reduced power mode. That's fine and I can work around it, while it is a PIA but for customer who doesn't want to mess with the car the MAF i still the way to go.
If this new sensor works, the end user will really benefit.
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From: Hell AFB
This MAF is completely different than the LPE, the LPE will still max out as nothing has changed but the size the of the meter. This new meter will allow you to change the frequency so you don't max it out.
I do like the SD tunes for big power but Nick and I had the same issues with the throttle closing-this required alot "tweaking" by HPT to eliminate that. I had to reduce my VE table by 50% so I wouldn't hit the 2.32 gram/cyl and put the car in reduced power mode. That's fine and I can work around it, while it is a PIA but for customer who doesn't want to mess with the car the MAF i still the way to go.
If this new sensor works, the end user will really benefit.
I do like the SD tunes for big power but Nick and I had the same issues with the throttle closing-this required alot "tweaking" by HPT to eliminate that. I had to reduce my VE table by 50% so I wouldn't hit the 2.32 gram/cyl and put the car in reduced power mode. That's fine and I can work around it, while it is a PIA but for customer who doesn't want to mess with the car the MAF i still the way to go.
If this new sensor works, the end user will really benefit.
Either way there is only a certain amount of data that the pcm knows. In all reality, we need a custom OS that allows aftermarket mafs and higher ranges, and or multiple mafs. A twin maf system is ideal due to low range reading and also wot airflow reading as well.
And yes, nothing beats a sd tune for big cam / FI cars, theres a reason most all of the standalones are map based.
In either case, it would raise the bar considerably to a level that would be harder to achieve to max it out, which is the whole problem in the first place.