RollinSScamaro

iTrader: (25)

I just have been debating for a long time about chagning my MAF sensor on my car.. Most people say not to touch them but others say they feel a difference when they change them.. Realy leaves me hanging..

I heard the 85mm Z06 Maf was the best bang for the buck and you can pick them up for around $150-200.. Unless there are better ones for the price?

But would the gains be worth it with the mods in my sig? That stock maf just looks restrictive.. I already took the screen off it though so i just don't know for sure..

Let me know what you guys think and if you have dyno proven results?

skywalkrNCSU

iTrader: (3)

dont mess with the maf unless you are getting near 650 hp

Redneck Z

iTrader: (3)

The only gains you get from a MAF are because it leans out the air/fuel ratio. You'll get these same gains when you get a dyno tune. Don't waste your money.

TAQuickness

iTrader: (28)

Not a good idea to mess with the MAF. The screen is there for a reason.

You can pick up a GM 85mm MAF off ebay for around $25. I got mine for $23 complete with the intake plumbing shipped to my door.

I have since removed the MAF and am currently running in OLSD. I may, in the future put the MAF back in just to see if I can tune it.

RollinSScamaro

iTrader: (25)

well it sounds like i better not touch the maf then! Thanks guys.. i couldn't decide whether to or not.. but it makes sense that the stock ones can handle a lot.. and they all the aftermarket ones do it lean it out a little.. Thanks guys i appreciate your time!

SLP LS1

Keep stock!

BlkZ28LS6

iTrader: (1)

Would cleaning the wires in the maf sensor be worth anything?

Redneck Z

iTrader: (3)

Possibly, if you're runnin' an oily K&N filter. If I ran a K&N I'd clean my wires every once in awhile.

Bill's 02 Z-28 SS

Hi Folks
Unless you are running with a 90mm TB and Manifold, why change the 75mm MAF to a 85mm MAF. Does not make sense. Not a good investment.
Bill

WS6FirebirdTA00

iTrader: (33)

yeah dont change it. although it is restriction and a larger properly tuned one may get you 5 hp its not worth it. i took mine out of my car. that screen is there to create laminar flow, taking it out will screw with your readings

777

iTrader: (21)

How does everyone clean their maf wires. Just some rubbing alcohol?

WS6FirebirdTA00

iTrader: (33)

i get some electronic parts cleaner. got it at the hardware store actually. its almost like brakleen

MeentSS02

iTrader: (11)

I'm personally running an 85mm, 5-wire truck MAF (with the imbedded IAT sensor), but I'm also running a closed loop speed density tune, so I'm not worried about ever tuning the damn thing. I probably could if I wanted, but it is running really well without it...if I ever need to get an emissions check done, I'll probably need to fix it, but I'll cross that bridge when I get there.

All I know is that when I put this on along with a TSP 85mm lid, my VE values changed quite a bit. It must have done something...

xx9666xx

i have an after market maff,,,,no diffrence

pewterta

iTrader: (6)

i dont even run a maf... speed density baby... MAFless!!

TAQuickness

iTrader: (28)

RollinSScamaro

iTrader: (25)

how would you do that?

MeentSS02

iTrader: (11)

VERY carefully

HPTuners or EFILive Flashscan also help a LOT

RollinSScamaro

iTrader: (25)

so you just take it out and it runs off of MAF values?

MeentSS02

iTrader: (11)

I left mine in, but my MAF tables are all zeroed out, so it can't use it as a reference for the airflow calculations. Essentially, you use a wideband O2 sensor as the truth source for your actual air/fuel ratio, and you adjust your VE table according to what you are commanding vs. what you are actually getting (as verified by the wideband). Then the airflow calculations become a "lookup only" type of value, where the computer is simply referencing a table instead of a real time source (the MAF). Essentially, you are telling the computer how much air the engine is ingesting, and it adds the proper amount of fuel based off of the VE table.