Lances02ss

iTrader: (1)

i recently built my 408 and was thinking about deleting my MAF just wanted to know the pros and cons


thanks

Lance

BobDoLe

iTrader: (11)

pros
- reduce intake restriction
- better throttle response

cons
- the maf can account for change in weather
- i've got my HSW interface connected through my MAF to add fuel for a dry nitrous setup.

Gh0st

iTrader: (3)

If you know how to tune, having a MAF won't make a lick of difference(negatively) unless it's a restriction in your intake.

JonCR96Z

iTrader: (33)

Don't we go through this every time someone asks this question. MAF is only slightly better at accounting for weather than SD. O2 sensors do the real correcting.

Gh0st

iTrader: (3)

You are forgetting that IAT and ECT play a role in SD fueling.

With CLSD, yes the 02 sensors will help, but due to atmospheric conditions your fueling is still going to be off unless you have somehow perfected the bias tables. In an OL situation if your SD tune isn't perfect, your fueling is going to be off.

MAF on the other hand will stay very accurate despite conditions.

Lances02ss

iTrader: (1)

well im intake is a 92 fast and my maf is stock i wont buy a bigger aftermarket maf especially if i could just do away with the maf all together.. i think the stock maf is what 85 mm so i dont know how much restricting that 7mm is doing

BobDoLe

iTrader: (11)

if you're driving an 02 SS, the MAF is your bottleneck at 75mm.
so you'd be looking at more like 17mm.

thread about gaining 16hp on a cam and bolt-on fast 90/90 setup just going from the stock 75mm (called 78mm a lot i think due to OD) maf to a descreened 100mm maf.
https://ls1tech.com/forums/pcm-diagn...striction.html

Lances02ss

iTrader: (1)

17mm? holy **** ive gotta lose it now...

02sslayer

iTrader: (4)

how do u go about getting rid of it? ya i know u have to remove it but does some code have to be entered in the computer?

Lances02ss

iTrader: (1)

great thread btw... il have to get a 4" tubing and just delete the maf in my tune il dyno it before with the stock maf and then again without a maf but both times it will be deleted

Lances02ss

iTrader: (1)

i dont know about hand held programmers but i live a block away from a dyno and they will just delete it all together

JonCR96Z

iTrader: (33)

I ran my car back to back at the track with and without the MAF with every different tuning combo and there was no difference at all. Although, my car is only a bolt on car.

Here is mine with no MAF and a FAST 90:

2000ws6transam

iTrader: (5)

Do what i did make your own 100mm + lid and buy the 85mm GM or 100mm MAF from lingenfelter. *5mm comes on alot of the new cars and trucks (with V8s) http://www.lingenfelter.com/mm5/merc...egory_Code=C68

Lances02ss

iTrader: (1)

my lid is the ftp 104 mm lid

2000ws6transam

iTrader: (5)

well that will work too lol. i think mine is around 102mm i can make it as big as i want and i think it only cost me 40-60 $ in materials. Its good to know that someone has made a big lid!! only bad thing about mine is i had to do a lil grinding on the shroud and radiator support in the middle, i could go almost 5 " but i dont see any point with only a 85mm MAF anyways.

Lances02ss

iTrader: (1)

ya that is my problem with the stock maf it is a bottleneck i dont wanna spend 300plus on an aftermarket maf when i could have it tuned for 60 bucks

JonCR96Z

iTrader: (33)

Exactly what I say. You'd have to get a bigger MAF tuned also.

2000ws6transam

iTrader: (5)

well, is it a DD or a trailer car? I dont think i would want to run a DD w/o a MAF

JonCR96Z

iTrader: (33)

You wouldn't know the difference.

Lances02ss

iTrader: (1)

what i meant was i could have the maf tuned out for 60 bucks and delete my restriction all together i wasnt saying get my stock one retuned just do away with it all together