Replacement Air Flow Straighteners
05-16-2011 | 10:18 AM
#41
Thread Starter
On The Tree
Joined: Dec 2010
Posts: 116
Likes: 0
From: NW OR.
It's gonna be a little oversize to be a tight fit in the mouth of the MAF. He made a pattern off of my 2000 Z stock MAF. Look at my pictures in post # 1.
Last edited by jg rider; 05-16-2011 at 11:33 AM.
05-16-2011 | 10:02 PM
#43
Thread Starter
On The Tree
Joined: Dec 2010
Posts: 116
Likes: 0
From: NW OR.
05-17-2011 | 11:18 AM
#44
Interesting. I have a truck/corvette maf that's the larger variety that incorporates the IAT into it. It doesn't have the screen, but I plan to go to FI in the near future, so I don't really need it, but for $13, it might be worth it just for scientific purposes.
05-23-2011 | 09:36 PM
#45
Had an extra $10 I felt like blowin, so I bought one of these screens. I don't have any issues at all with mine, but I figured it'd be worth a shot on my car. It's gotta be worth something for $10.
We'll see how it works this weekend..
We'll see how it works this weekend..
05-24-2011 | 12:02 AM
#47
Sorry gents... I've been slacking. I'm going to place my order tonight.
Agree with HoLLo. 10 bucks? I blow that on the car wash. Why not, ya know?
** Just placed order. We'll see how it goes and will inform.
Agree with HoLLo. 10 bucks? I blow that on the car wash. Why not, ya know?
** Just placed order. We'll see how it goes and will inform.
Last edited by dr_whigham; 05-24-2011 at 01:10 AM.
05-24-2011 | 03:30 AM
#50
According to the vette forum guys with the TSP 102mm MAF's, it really helped their MAF frequency stable out and MUCH easier to tune..... I really doubt you'd lose in the long run, considering everything would be easier for the computer to read.
Even if / when I go speed density, I'll probably run one somewhere in the pipe just due to the fact of the way it completely straightens out the airflow and removes all the turbulence.
Even if / when I go speed density, I'll probably run one somewhere in the pipe just due to the fact of the way it completely straightens out the airflow and removes all the turbulence.
05-25-2011 | 12:58 AM
#51
Not sure if anybody's actually mentioned the facts in this thread (stopped reading at the bottom of page 1) but the reason for screens on a MAF is, as stated, to straighten the air going THRU the MAF, so it gets an accurate reading. Whats going on between the MAF and the throttle body doesn't really mean much of anything, but the piping/filter arrangement before the MAF makes a huge difference. Ideally, if there is a bend in the pipe, you want the air to make 1 complete swirl before hitting the MAF. The other thing to think about in the intake tract is pressure pulses from the opening and closing of the intake valves. It's not all about JUST airflow - those pressure pulses sometimes move air back and forth as they exit the throttle body and travel down to your air filter and back, creating skewed MAF readings. Believe it or not, GM probably made a good intake. It's all a system, throwing bigger, 'better' (subjective) parts at a motor isn't always a good thing. All the CAI business usually does nothing more than skew MAF readings, causing bumps in ignition timing due to the ECU thinking there is more mass flow coming into the engine than there actually is. Might be OK on a stock motor where there's plenty of room in the tune, but on a modified car with a tune thats already pretty close to the edge....you probably want the ECU to get as good of readings as possible, instead of bumping timing into the knock threshold. Don't believe me - log the MAF voltage on the dyno between a stock intake/filter setup, and a CAI.
05-25-2011 | 06:35 AM
#52
Does anyone know the size of the screen to order for the truck/corvette maf's that are larger? Typically they are called 85mm maf's, but that's not the ID of the metal housing. I guess I can pull out the caliper tonight and measure.
05-25-2011 | 02:00 PM
#53
05-27-2011 | 02:35 PM
#56
I keep meaning to take a measurement when I get home from work each day and keep forgetting... maybe it's the 2 and 4 year old who rush me when I walk through the door... just a guess.
I'll try and remember when I get home.
I'll try and remember when I get home.
05-27-2011 | 02:42 PM
#57
Thread Starter
On The Tree
Joined: Dec 2010
Posts: 116
Likes: 0
From: NW OR.
I guess you're going to have to measure across the mouth of the housing as I show in post 41. You tell him what you want and he cuts it for you.
05-28-2011 | 07:31 PM
#59
Not sure if anybody's actually mentioned the facts in this thread (stopped reading at the bottom of page 1) but the reason for screens on a MAF is, as stated, to straighten the air going THRU the MAF, so it gets an accurate reading. Whats going on between the MAF and the throttle body doesn't really mean much of anything, but the piping/filter arrangement before the MAF makes a huge difference. Ideally, if there is a bend in the pipe, you want the air to make 1 complete swirl before hitting the MAF. The other thing to think about in the intake tract is pressure pulses from the opening and closing of the intake valves. It's not all about JUST airflow - those pressure pulses sometimes move air back and forth as they exit the throttle body and travel down to your air filter and back, creating skewed MAF readings. Believe it or not, GM probably made a good intake. It's all a system, throwing bigger, 'better' (subjective) parts at a motor isn't always a good thing. All the CAI business usually does nothing more than skew MAF readings, causing bumps in ignition timing due to the ECU thinking there is more mass flow coming into the engine than there actually is. Might be OK on a stock motor where there's plenty of room in the tune, but on a modified car with a tune thats already pretty close to the edge....you probably want the ECU to get as good of readings as possible, instead of bumping timing into the knock threshold. Don't believe me - log the MAF voltage on the dyno between a stock intake/filter setup, and a CAI.
05-28-2011 | 10:19 PM
#60