Electrical Speed density to mass air

Joemon5.0 · May 12, 2020

I was just wondering if there was a chip or a tune and chip that I can use in place of getting a mass air flow sensor, computer, and harness? Being that it’s hard to find a computer, and I currently have 19lb injectors, but I want to upgrade to 24’s in the future and don’t want to buy another mass airflow, thanks

Mustang5L5 · May 12, 2020

Yes, you can get a chip and have the car tuned for 24# injectors, or ditch the factory ECU and go with a microsquirt/megasquirt. It may be cheaper though to go with the factory mass air stuff though in the long run. ALl depends on what extent of modifications you plan on doing

Blown88GT · May 12, 2020

BTW, Megasquirt doesn't need to use a MAF; it has an onboard MAP sensor.
It is also fully capable of using the one you have or a blend of both.

Joemon5.0 · May 13, 2020

Thanks for the replies. I would like to go the cheapest route, run a mass air for 19’s then upgrade to 24’s when I work on the motor possibly stroke it to 347. I just can’t find the EEC’s anywhere for less than $300. How much would the cheapest tuner cost?

Blown88GT · May 13, 2020

You're not going to get a chip, tune or ECU for less than $300. Add to that your desire for larger injectors, 347 stroker?! You're into the $1000's.
Nothing is cheap.

Monkeybutt2000 · May 13, 2020

You can run 24# injectors on speed density.

General karthief · May 13, 2020

Here is a discussion on the sd and 24's, it's old but something to think about anyway, there are other threads about it too, I just googled (I am the 'official stangnet googler') 24lb injectors on speed density.

Are 24 pound Injectors OK with Speed Density??

Would upgrading to 24 pound injectors work with a speed density car, my stock 19s have 130k plus on them and i wanna change them, get a little more power. I dont wanna get 19s again because im going to eventually convert to mass air, and new heads and stuff, So i guess the only question is will...

www.stangnet.com

I'm sure others will chime in.

Joemon5.0 · May 13, 2020

General karthief said:
Here is a discussion on the sd and 24's, it's old but something to think about anyway, there are other threads about it too, I just googled (I am the 'official stangnet googler') 24lb injectors on speed density.

Are 24 pound Injectors OK with Speed Density??

Would upgrading to 24 pound injectors work with a speed density car, my stock 19s have 130k plus on them and i wanna change them, get a little more power. I dont wanna get 19s again because im going to eventually convert to mass air, and new heads and stuff, So i guess the only question is will...

www.stangnet.com

I'm sure others will chime in.

Ok I will check it out, thanks for the info guys!

Joemon5.0 · May 13, 2020

Blown88GT said:
You're not going to get a chip, tune or ECU for less than $300. Add to that your desire for larger injectors, 347 stroker?! You're into the $1000's.
Nothing is cheap.

What chip would you recommend? Also Do I replace my current computer with it or does it get added to my computer? Thanks

Monkeybutt2000 · May 13, 2020

Joemon5.0 said:
What chip would you recommend? Also Do I replace my current computer with it or does it get added to my computer? Thanks

You do NOT need a "chip" I ran 24's over 20yrs ago on a speed density car. Little fiddling with the idle screw. Car ran and idled great.

General karthief · May 13, 2020

Do you actually have a plan for what you are doing?

General karthief · May 13, 2020

Monkeybutt2000 said:
You do NOT need a "chip" I ran 24's over 20yrs ago on a speed density car. Little fiddling with the idle screw. Car ran and idled great.

What else was done to the engine, just the 24lb injectors?

SMOKEDYA · May 13, 2020

Also once you get an A9L (if running a manual transmission) all you need are injectors that match the MAF, MAF ,A9l ,timing light, fuel presure gauge, and adjustable fuel pressure regulator, and you should be able to tune all you need with those simple items. My old fox with H/C/I 19# injectors made 301/328 to the wheels and the only thing i tuned with was what i listed above.

Monkeybutt2000 · May 13, 2020

General karthief said:
What else was done to the engine, just the 24lb injectors?

It was essentially a 95 Cobra engine. I built it for the now defunct FFW Factory Stock class.

Joemon5.0 · May 14, 2020

Now I have to look for a good A9l computer, and a MAF. Maybe I will start by calling some junkyards around town, if they are open.

Mstng93SSP · May 14, 2020

Want a stock mass air meter? I have 6. Pay shipping and it's yours free. Let me know.

Chris

General karthief · May 14, 2020

Mstng93SSP said:
Want a stock mass air meter? I have 6. Pay shipping and it's yours free. Let me know.

Chris

Only 6?

Joemon5.0 · May 14, 2020

General karthief said:
Only 6?

Thanks Chris!!!

Mstng93SSP · May 14, 2020

Well, 5 now...

Red50Fox · Jul 5, 2020

I'm trying to get some info on MAF for my 88 vert, 5.0 automatic, GT with 19 lb. Injectors. I'm trying to plan out the next project , now the the 5lug/disc project is on the road... So, my 1st step, putting MAF in the 88. Looking at Cold Air Intakes there seem to be a few different tube sizes, and MAF sizes. I realize that I need to match the injectors and tube size, which leads me to possibly picking up a used MAF, but I have some questions. What is the stock tube size? What donor car should I look for? Anything I should be asking about used that I don't know of (pretty much everything)
I have an A9P ECU and a 70 mm BBK TB (on the car now) with a stock air intake. I plan to pick up the MAF harness from LMR to make things easier for the install

For my 2nd step I also have a lower RF-F87E-9K461-BA and the matching "CA" upper manifolds as a reference (not sure if it impacts work done in the first step). I do understand that I don't need to swap out intake manifolds to swap in MAF, just putting context to what I'm thinking of doing. Step 1 and step 2 may not be too far apart depending on how things go.

Thoughts, insights?

Electrical Speed density to mass air

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That is…until I whipped out my Bissell

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Mustang Master

wonder how much it would cost to ship you a pair

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Member

Mustang Master

wonder how much it would cost to ship you a pair

wonder how much it would cost to ship you a pair

Mustang Master

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You have a nice rear end there Dave.

wonder how much it would cost to ship you a pair

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You have a nice rear end there Dave.

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