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Replacement MAF tubing

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Old Apr 13, 2014 | 06:51 PM
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Default Replacement MAF tubing

I have a TSP 100mm MAF w/ LS3 MAF card. I'd like to experiment with using smaller diameter tubing while keeping the MAF card. Any suggestions where I can find such tubing which already has the MAF mounting boss included?
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Old Apr 13, 2014 | 07:45 PM
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Originally Posted by JimMueller
I have a TSP 100mm MAF w/ LS3 MAF card. I'd like to experiment with using smaller diameter tubing while keeping the MAF card. Any suggestions where I can find such tubing which already has the MAF mounting boss included?
Been there done that. Buy a 3.5" Aluminum pipe approx 4" long, and the bung you can buy separately. Both together were like 20 bucks. You'll notice it actually CENTERS the card MAF using a 3.5 pipe.
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Old Apr 13, 2014 | 08:25 PM
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Spectre sells a 4" MAF tube for a card style MAF with the bung already attached. It comes with 2 reducers to put in it to strengthen the MAF signal. Got it from Summit Racing. http://www.summitracing.com/parts/spe-9705/overview/ $29.97

I have 1 for my LS7 MAF
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Old Apr 13, 2014 | 09:13 PM
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It doesnt strengthen the maf signal. It normally decreases the sampling area that passes over the card. 2 completely separate things.
The card only reads off nearly the very end of it, so keep that in mind.
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Old Apr 13, 2014 | 09:46 PM
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Wouldn't reducing the diameter of the housing the MAF is in increase flow velocity resulting in a stronger MAF signal? If I am wrong, I am wrong lol
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Old Apr 13, 2014 | 09:50 PM
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Laminar airflow isnt caused by the inserts they send, which is kinda what you are aiming for as far as a maf signal. If you move the floor of the tube closer to the actual maf sensor spot, any number of things can happen. Sometimes it changes the place/Hz at which the maf populates at, which can trick it into using the lower signal fuel cell. The same thing is accomplished by putting a resistor in line like the SLP mafs.
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