Certain distance between filter and MAF?
Thread Starter
Staging Lane
Joined: Jan 2016
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Certain distance between filter and MAF? hello! Im finishing up an LS1 Swap and was just about to start on my air intake. And was wondering if there’s a certain distance I should place the MAF away from the filter, or does that matter at all. Cuz I was going to to mount the filter straight onto the MAF or is that a no no?
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From: Virginia
The factory lid has the MAF attached directly to it, so I don't see why that would be a huge problem. The bigger consideration is making sure you have at least 5" of straight tube before the actual TB.
If you can afford it, MAF's will work better with a little straight pipe between the filter and sensor. Ideally having 5" on both sides is the best bet, but not every car has 10" of space to route air tubing. Especially F-body's.
If you can afford it, MAF's will work better with a little straight pipe between the filter and sensor. Ideally having 5" on both sides is the best bet, but not every car has 10" of space to route air tubing. Especially F-body's.
Thread Starter
Staging Lane
Joined: Jan 2016
Posts: 78
Likes: 1
The factory lid has the MAF attached directly to it, so I don't see why that would be a huge problem. The bigger consideration is making sure you have at least 5" of straight tube before the actual TB.
If you can afford it, MAF's will work better with a little straight pipe between the filter and sensor. Ideally having 5" on both sides is the best bet, but not every car has 10" of space to route air tubing. Especially F-body's.
If you can afford it, MAF's will work better with a little straight pipe between the filter and sensor. Ideally having 5" on both sides is the best bet, but not every car has 10" of space to route air tubing. Especially F-body's.
so ur saying
filter
at least 5” Tube
MAF
at least another 5” of tube?
Want matter where u install it. A good tuner can make the changes needed for it to work correctly. Ive installed them straight off the tb with a filter. Worked just fine once tuned.
Most oem setups are as posted around 5" or longer after the maf into the tb. I usually just put it were its convienent.
Most oem setups are as posted around 5" or longer after the maf into the tb. I usually just put it were its convienent.
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Joined: Oct 2014
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From: Virginia
A stock tune biases dynamic air under 4000 rpm because the MAF is known to be inaccurate at low airflow. That's why GM recommends the 5", to help with accuracy, (accounting for turbulence at the blade I assume).
Of course, it is tunable. Anything can be tuned. How accurate it is might be a different story. I've even heard that clock position of the element can affect the accuracy.
Thread Starter
Staging Lane
Joined: Jan 2016
Posts: 78
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I am just using GM's recommended distance from the TB. By "lid" I am referring to the 4th Gen LS1 Camaro Airbox. The MAF is mounted right to it. So there is really no need for the extra space in front. The 5" behind it is to help ensure accuracy.
A stock tune biases dynamic air under 4000 rpm because the MAF is known to be inaccurate at low airflow. That's why GM recommends the 5", to help with accuracy, (accounting for turbulence at the blade I assume).
Of course, it is tunable. Anything can be tuned. How accurate it is might be a different story. I've even heard that clock position of the element can affect the accuracy.
A stock tune biases dynamic air under 4000 rpm because the MAF is known to be inaccurate at low airflow. That's why GM recommends the 5", to help with accuracy, (accounting for turbulence at the blade I assume).
Of course, it is tunable. Anything can be tuned. How accurate it is might be a different story. I've even heard that clock position of the element can affect the accuracy.
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Joined: Oct 2014
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From: Virginia
As to your original question though... yes, you can mount the MAF directly to the filter. Just try and give it some room before the throttle blade so it doesn't end up measuring the same air twice as it kicks back on a WOT to 0% transition, if that makes sense. Tuning can account for this though, if you must mount it closer to the blade. In fact, the stock tune already does this for transitions. It just adds a small degree of difficulty for the tuner.
5" is what GM recommends with thier crate instructions. I might even be able to dig them up if you want.
5" is what GM recommends with thier crate instructions. I might even be able to dig them up if you want.
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From: Virginia
I want to say 3'o clock for a standard screened MAF. Not positive though. That's where mine is. I just know someone that fixed a tuning problem by just rotating the sensor. That's where I got that. It does make sense though, considering airflow can be different at different places off the filter.
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Verdad Gallardo TECH Fanatic
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From: Virginia
Found a set of instructions for you. It looks like my memory is fading a bit with time here. They recommend 10" before the blade, but again, it can be tuned with less. It's particularly funny because there are only 5 inches of room on a stock Camaro lol.
This is the blade type shown here. Mounting positions are 3 or 9 o'clock. TSP told me 3 o'clock for my 100mm screened MAF if I recall correctly.
http://www.chevrolet.com/content/dam...except-lc9.pdf
This is the blade type shown here. Mounting positions are 3 or 9 o'clock. TSP told me 3 o'clock for my 100mm screened MAF if I recall correctly.
http://www.chevrolet.com/content/dam...except-lc9.pdf
