02LS1ram

iTrader: (17)

How far can the stock MAF take u HP wise?? What r the limits of it. How far Have u guys taken it before it starts to hold ur setup back.

TWS

iTrader: (63)

My stock motor'd '02 Z28 put down 479 RWHP on 8 psi with a D1SC through the stock MAF.

02LS1ram

iTrader: (17)

It wasn't maxed out was it

TWS

iTrader: (63)

I can't remember, but I don't think so.

It definitely maxxed out when I bumped the boost to 10 psi.

Put a Z06 MAF on there after changing the pullies and it is still maxxed out at the top of the RPM band, but my tuner was able to command a safe AFR.

02LS1ram

iTrader: (17)

Tx for ur input

moehorsepower

iTrader: (3)

722 RWHP on the Stock (Less de-screened) MAF

TWS

iTrader: (63)

Disregard Moe. His tuning abilities are beyond those of mere mortals.

Bob@BruteSpeed

iTrader: (16)

The maf will be maxed out around 450 rwhp, then the tune is basically a speed density tune after that. A lot of cars run 700 to 800 rwhp with a maf, but visually they look better when you get rid of it. Bob

STAR

iTrader: (1)

The important thing hear is to have proper fueling-which a maf will provide till 450-500rwhp as mentioned. After that you are relying on rpms and pe (power enrichment) for your fueling needs. This will work, but it is not accurate and consistent as a speed density tune. If you tune for today and next month its colder and you make more boost your air fuel will be leaner.
Speed density uses more input to calibrate your fueling requirements such as 2 or 3 bar map sensor, iat, rpms and ve. So your air fuel will always be what you set it for wether your making 10lbs of boost or 15lbs.
Your maf actually is not limiting you, its your pcm that is hard coded to read up to 512g. There are ways around this by fooling your pcm and cutting tables in half to extent the range, but not many people taking that approach.

moehorsepower

iTrader: (3)

I am not knocking SD or suggesting going MAF, What ever you feel comfortable with, its just when someone says "It cant be done" I have done a lot of R & D in the past years, trying dual MAF's, actually when I installed my kit back in the day the maf was in the intake side, I installed it on the pressure side and found more accuracy now all the kits place the maf on the pressure side, I'm not saying because of me they are doing this, I'm just saying I did all of this "YEARS" ago, Running 12+ pounds of boost on a stock PCM with a 2 bar map when that was said it couldnt be done ect. My fueling with the maf is spot on no matter what time of year and I have gone to different dynos at different cities, same results...It's all in the tune..

02LS1ram

iTrader: (17)

I also have a slp maf that I can put in there. I just want to be able to pull aleast 550rwhp, fuel wise I should be good. 60lbs injectors n twin Walbro 255"s

Ws6kid.

i agree

TWS

iTrader: (63)

FYI for those that don't know: Moe does the tuning on my LTx car and I was just teasing him.

That's what Brian and I decided on my Vortech equipped car. We looked into going SD on that car and decided against it. It got upgraded to a ZO6 MAF too.

I have one "blow through" (Procharger) and one "pull through" (Vortech) car, and both are still running MAFs.