Turbulence with MAF Sensor Problem
Thread Starter
Heel & Toe
Joined: Nov 2019
Posts: 23
Likes: 1
From: Miami, Florida
Turbulence with MAF Sensor Problem
Hello everyone,
So i have done two centrifugal super charge builds, one on a c7 and now one on a c6. Both cars are my personal cars but i pushed to get more power out of my c6 with bigger fuel pump and injectors. We where able to get the car to 699hp with this setup + 93octane and 30% e85 on stock internals but are having issues with the maf sensor constantly trying to adjust due to the highflow of air causing turbulence in the pipe.
I have seen some youtube videos and done some reading but my tuner blames the location of the tube as a manufacturer (i will not disclose) flaw. Both setups had the same maf flow sensor location but we are pushing the c6 build to get much more horsepower. My shop suggest speed density tune from the beginning and my tuner said that was nonsense. Now i am having to pay more money to get the car tuned again (for a speed density tune) to avoid the fluctations on idle and when i drive the car... the flucatations happen at all times when i let off the gas but underload it goes away...
Any tuners wanna chime in? This is a very popular and well known great tuner. I will not release names to not cause any drama for everyone involved but I am upset for not going speed density from the beginning.
So i have done two centrifugal super charge builds, one on a c7 and now one on a c6. Both cars are my personal cars but i pushed to get more power out of my c6 with bigger fuel pump and injectors. We where able to get the car to 699hp with this setup + 93octane and 30% e85 on stock internals but are having issues with the maf sensor constantly trying to adjust due to the highflow of air causing turbulence in the pipe.
I have seen some youtube videos and done some reading but my tuner blames the location of the tube as a manufacturer (i will not disclose) flaw. Both setups had the same maf flow sensor location but we are pushing the c6 build to get much more horsepower. My shop suggest speed density tune from the beginning and my tuner said that was nonsense. Now i am having to pay more money to get the car tuned again (for a speed density tune) to avoid the fluctations on idle and when i drive the car... the flucatations happen at all times when i let off the gas but underload it goes away...
Any tuners wanna chime in? This is a very popular and well known great tuner. I will not release names to not cause any drama for everyone involved but I am upset for not going speed density from the beginning.
Last edited by xdjxtc34x; Apr 7, 2026 at 05:45 AM. Reason: typo
Pro
Joined: Oct 2024
Posts: 708
Likes: 394
From: WI
I'm not a professional tuner but I have tuned a couple of my own vehicles. My setup is a stock LS3 running an A&A kit w/3.8" pulley on a V3Si. My original plan was to run both MAF+MAP sensors as GM originally intended. My MAF readings got very shaky and sporadic under boost, just spiking low and high and not trending smoothly higher with boost/RPM. I ended up ditching the MAF in the tune altogether (i.e. running SD only) and it was a great decision. Driveability at idle, part throttle, and WOT are all wonderful with zero complaints. It runs as smoothly as a factory car and I don't miss the MAF at all.
Instructor
Joined: Apr 2017
Posts: 174
Likes: 83
From: Ventura
When I had A&A install the supercharger in my LS3 M6, I initially was getting surging around 1500-1700 RPM under light load conditions. It was attributed to turbulent airflow across the MAF sensor. They put a honeycomb-like insert upstream of the MAF in the intake tube. 4 years and 25k miles later, surging is not an issue. Because of the CARB laws in Cali, I can't run SD on my system. Not sure if this is the fix you need, but it worked for me.
Thread Starter
Heel & Toe
Joined: Nov 2019
Posts: 23
Likes: 1
From: Miami, Florida
This is why I am just going to that route and take the professionals advice lol. My shop (Great Friend) that did all my work also suggest the same thing instead of inventing with a honey comb insert to steady the flow of air.
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