bowtieman81

iTrader: (35)

Well, have not seen any post on how people actually remove the MAF from there car, even though quite a few have. So, I figured I would post up my method. It works good, was cheap, almost looks factory, and can be put back to stock no problems.

Edit: this is for guys running/wanting to run speed density

I got the supplies from the local Ace hardware store, and the total was only $13. All you need is a 4" fernco coupler (in plumbing section), which came with 2 hose clamps and a piece of 4" white plastic pipe (this was for a dryer vent).

Procedure:
1 - Remove regular intake setup (lid to TB coupler hose)

2 - Remove MAF from lid (this was PITA on mine, damn near broke my lid getting that damn MAF off it!)

3 - Now if you have a normal lid (ie not the 85 mm TSP lid) you can simply take the GM rubber connector that goes between the MAF and the TB and turn it around and put it on you lid. I had to heat mine up slightly to soften the rubber, but it fits great on the lid.

4 - Then, take your white plastic pipe and cut it to about 2" in length. This will serve as a way to join the GM connector and your fernco piece.

5 - Next, the trickiest part is cutting the fernco coupler at an angle. Luckily I got it pretty darn close first try. But you want to cut it at about 15 degree angle to mate up easily to the TB.

6 - Once that is done proceed to put stuff together, then put it on the car. The cool thing about the white plastic pipe is that you can look inside it and see if the seal is good where the band clamps are. If you see black all around you have a good seal. I also chose to wrap some electrical tape around the MAF connector not being used to keep it from dangling there.

V8pwrdz28

iTrader: (5)

im guessing this is for swapping to speed density?

bowtieman81

iTrader: (35)

Yep, I figured that was a given. I will edit.

highgear

What is the benefit of switching from MAF to Speed Density?
Is our Computer setup to run Speed Density?

V8pwrdz28

iTrader: (5)

u know there are people out there that would try it then wonder why there car either wont run or runs like **** lol

bowtieman81

iTrader: (35)

You need to go to the PCM section and search under "MAF" or "speed density". There are more posts than I can count about it. In your case, especially if you already have the car tuned well I doubt you would see much benefit by going SD.

And yes, the computer will run SD. It is the backup in case of a MAF failure.

TheBlurLS1

iTrader: (8)

Nice writeup! Thanks for putting it together for us!

bowtieman81

iTrader: (35)

No problem

DirtyJohn

iTrader: (8)

I gotta give props, without this thread I wouldn't have even thought of this combo.
I did the full fernco which is actually 2 fernco tubes, hacked together with a coupler, similar to how this is done.
But like has been mentioned, it is really firm and doesn't flex for anything.

I think this setup is a really happy medium, and if you polish up the fernco and stock bellows, it can look pretty slick as well.

Great idea, and nice writeup.
DJ

brad8266

iTrader: (23)

https://ls1tech.com/forums/pcm-diagnostics-tuning/509481-advantages-disadvantages-sd.html

IMO Speed Density is pointless unless you are pushing more airflow than the MAf can read or your cam causes so much reversion in the intake that it is screwing up the MAF readings.

SpdFrk1990

iTrader: (6)

Nice write up im running on a SD tune right now and im looking to do this. What about a single hose from the tb to the lid? Like a 6" long hose that is 3.5" ID on one end and 4" on the other would that work?

Galen

iTrader: (3)

Hmmm, I wonder why GM went out of their way to do it with the Holden HSV then?

jay_99z

iTrader: (5)

Or....if your MAF took a dump and you didn't feel like replacing it. That was my reason ditching it. It has ran great ever since.