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Unread 06-26-2013   #1 (permalink)
snakebite90 is offline Rookie


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Default MAF and injectors

Would anyone know if I can run 42lbs injectors with a MAF thats calibrated for 24lbs injectors without having problems?

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Unread 06-26-2013   #2 (permalink)
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You will need to get it tuned.
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Unread 06-26-2013   #3 (permalink)
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I just dont know if the 24 injectors are going to be enough for my set up

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Unread 06-26-2013   #4 (permalink)
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Even with a properly calibrated MAF for 42# injectors it probably won't run right. Just too far off from the curve programmed into the computer.

Plan on a tune.

What do you have that justifies 42# injectors?
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Unread 06-26-2013   #5 (permalink)
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Im going to be running aluminum gt40 turbo swirl heads, e303 cam, gt40 tubular intake, high flow rail and fuel pump, long tube headers, cold air with calibrated maf and 42lbs injectors
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Unread 06-26-2013   #6 (permalink)
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24's would work but i think make their cycle rate higher than you'd like for reliability, but it would work all day long. You really just have a basic(no offense)GT40 setup. I'm running 30's with a Cobra Maf cal'd for 24's and it makes my eyes burn(non tuned). 30's would be right where you'd need to be with "room to grow" IMO, 42's are not necessary at all and will hamper performance within its allowable parameters.


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Unread 06-26-2013   #7 (permalink)
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No offense taken...yea that sounds right I just couldnt let the deal pass up there practically brand new for $150
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Unread 06-26-2013   #8 (permalink)
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Quote:
Originally Posted by snakebite90 View Post
No offense taken...yea that sounds right I just couldnt let the deal pass up there practically brand new for $150
Haha! That's how I ended up with my 30's trading up lol. And I misinformed, I have a pro-m 80mm cal'd for the 30's but its way too much because my Cobra ecu(tune)is set for 24's.


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Unread 06-26-2013   #9 (permalink)
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Are you running a cam?
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Unread 06-26-2013   #10 (permalink)
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E303, check my signature for what I got. My heads are not as good as yours though.


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Unread 06-26-2013   #11 (permalink)
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It might not be fully updated. I'm usually using AutoGuide and not on the full site so I forget to do stuff lol.


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Unread 06-27-2013   #12 (permalink)
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Yea using same app here!! Do you know how much hp your putting down? I wanna get an idea of were ima be
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Unread 06-27-2013   #13 (permalink)
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No clue to be honest. I'm in the process of getting everything drive able and then I'm going to go get it tuned.


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Unread 06-27-2013   #14 (permalink)
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24 lb'ers will be more than enough for your combo.

There is no real need for 30's or 42's.

Like Matt said the stock ECU can not really handle the 42's to have good driveability and good WOT.

Your car with just basic bolt ons will be right on the money with the 24's.
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Unread 06-27-2013   #15 (permalink)
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I agree. 24# injectors with the 24# MAF will be fine for what you have.

What MAF do you have?

And, just because, might want to try reading this:

http://www.allfordmustangs.com/forum...ated-mafs.html
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