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Old 03-08-2017, 06:11 AM   #1
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General discussion on larger MAF tube

I wanted to add a thread on adding a larger MAF tube and what benefits can be gained. I found some larger universal MAF tubes on eBay.

I was wondering if going bigger would gain power?

How big is to big ?
There were some on there as big as 4 inches outer diameter.

I already replaced the stock MAF tube before from over tightening the K&N filter during intake install. I kind of wanted a metal one to eliminate that problem.

Any insight or help is greatly appreciated

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Old 03-08-2017, 06:13 AM   #2
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For instance I was looking at this for a replacement

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Old 03-08-2017, 08:20 AM   #3
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A larger MAF will 100% require tuning , I wouldnt go larger then 3 inch , location of the MAF is also important

If you can wait till May I am making more 3 inch intakes with the MAF built in to the intale so you not having to use the MAF Tubes

Tom
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Old 03-08-2017, 09:33 AM   #4
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MAF diameter is often smaller than you might think optimal for maximum power just to get enough air flow speed at low throttle openings for decent measurement.

That's where most cars spend the vast majority of their time, so sensitivity/accuracy in that zone is critical.

Larger than other intake tubing is blatantly too big, hurts flow more than helping and hurts accurate flow measurement.

As Tom mentioned, changing size/location requires tuning to work properly at all, and I'll add that unless it's an actual restriction on flow at current size making it larger will hurt more than help.
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Old 03-08-2017, 04:55 PM   #5
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Quote:
Originally Posted by 1turbofocus View Post

If you can wait till May I am making more 3 inch intakes with the MAF built in to the intale so you not having to use the MAF Tubes

Tom
Definitely seems like the best option to me.
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Old 03-08-2017, 05:48 PM   #6
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Quote:
Originally Posted by 1turbofocus View Post
A larger MAF will 100% require tuning , I wouldnt go larger then 3 inch , location of the MAF is also important

If you can wait till May I am making more 3 inch intakes with the MAF built in to the intale so you not having to use the MAF Tubes

Tom
I want one. Will the intake work with either stock or upgraded throttle body?
I'm waiting for dyno proof on bigger throttle body and TTR intake manifold.
Your intake is already dyno proven.
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Old 03-08-2017, 06:52 PM   #7
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It will work with the stock TB or 3 inch

Tom
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Old 03-08-2017, 07:09 PM   #8
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Quote:
Originally Posted by jr schultz View Post
I want one. Will the intake work with either stock or upgraded throttle body?
I'm waiting for dyno proof on bigger throttle body and TTR intake manifold.
Your intake is already dyno proven.
Tom said in the thread about his intake that he will provide a 3in intake tube with MAF and then we will buy our own couplers and clamps and filter. So all you'd need to do is get a different size reducer for the TB. stock would be a 3in to 2.5in and the 63mm TB would be 3in to 2.75in. you can get them pretty cheap on Siliconintakes.com
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Old 03-08-2017, 07:41 PM   #9
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I would be interested in Tom's new intake but I'd like to keep the K&N heat shield. My plan was to use a 3inch intake to 3inch MAF tube and have it be in the same location as the K&N

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Old 03-08-2017, 07:51 PM   #10
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Quote:
Originally Posted by tower2 View Post
I would be interested in Tom's new intake but I'd like to keep the K&N heat shield. My plan was to use a 3inch intake to 3inch MAF tube and have it be in the same location as the K&N

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I had similar thoughts with that. The problem is, at least for me, is there is hardly any space between the heat shield and the new TB location. So you are pretty limited on what you can do. Plus, would a 3in maf fit in the K&N heat shield. i know on the fswerks intake, the MAF attaches to it and the shield is made to fit that MAF. I think Tom's intake is going to not have a heat shield and it moves the filter so it's facing down. there is a pic of it in the thread he has on it.
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