Blown Interceptor

iTrader: (5)

Just installed my wideband and around 3k, my A/F ratio starts at 12.4 to 12.5 and goes down when the rpms go up. At one point I saw 11.8 on the A/F gauge.

Any ideas how much it would lean me up? Also if I get MAF tables from a stock Z06...will that effect it?

Thanks,
Jason

ringram

Nobody knows as you have mod's

Get a tune tool and tune it properly. The MAF should never lean out the engine, it should deliver your commanded fuel ratio. If it doesn't then your tune is wrong.

Blown Interceptor

iTrader: (5)

Well, if a bigger MAF does not lean you out...then why are some people having problems with pinging when they put one on?

Mods are in my sig. I have tuners so I can tune it.

MeentSS02

iTrader: (11)

Then why don't you tune your car with what you already have?

ZL1Killa

iTrader: (17)

why do you want/need a Z06 MAF?

you can use PE mode to richen you up if you are maxing out your MAF

USE PE MODE to get your fuel its so freakin easy!!!!!!
don't use VE but the level out the fuel trims @~-4% all around
use ur PE mode and set your AFR to what you want, change the parameters so PE mode comes in sooner (MAP and TPS) and BAM...theres your AFR

and i'm not joking...its that easy

jimmyblue

iTrader: (11)

At the big end, something like (459g/sec)/(512g/sec)=.896,
about 10% leaner at the 12kHz upper limit. Point by point,
maybe more or maybe less. This would take you from the
kooky 11.7:1 stock commanded to a 13.1:1 delivered AFR.

Presuming everything else in the system is straight up and
resembling stock. Which is already looking like a bad bet.
And you're not even to the fun part yet.

With airflow jacked lean you are going to get more positive
fuel trims (let alone what the cam and other stuff may have
already put on you) and these will fight the lean-out you're
hoping for. You may get the "seat of the pants" improvement
right after install, and next week you're wondering where it
went, and start looking for the next voodoo mod.

As a rule you're way better off not lying to the computer.
Learn it right, and you get less surprises. Run the Z06 MAF
(or the much cheaper eBay truck MAF minus screen) and a
table that represents, and command the fueling you really
wanted based on realistic air.

Blown Interceptor

iTrader: (5)

More air = more HP???

Blown Interceptor

iTrader: (5)

I planned on getting a Z06 MAF and putting that MAF table into mine.

jimmyblue

iTrader: (11)

Well then it will not lean you out at all, and simply be bigger
pipe.

ZL1Killa

iTrader: (17)

again...why?

Blown Interceptor

iTrader: (5)

Ummm...no real reason I guess. A little more air/HP, it is a bolt on. :dunno:

horist

one thing to keep in mind... if you can get it for a good price then fine... but don't pay a ton of money for the Z06/LS6 85mm MAF... Your AirLid is 78mm or so... that feeds to an 85mm MAF, which then feeds to a 78mm throttle body... that feeds into a 78mm intake manifold

I've always been a fan of the stock MAF w/screen and all (when doing MAF tunes)

But as I said, if you can get a good deal on the Z06 MAF and have extra cash, then go for it... just don't overpay for it

Blown Interceptor

iTrader: (5)

I see your logic, but in the near future I will be doing a FAST 90/90 combo.

1320FEVER

iTrader: (9)

If your going to the 90/90, why not just take the maf out and go speed density?

ringram

A very sensible idea!

ZL1Killa

iTrader: (17)

I'm with hin on this, except i wouldn't get it at all
don't waste your money on a new MAF. spend it elsewhere trust me

the_merv

iTrader: (88)

I spent $50 on the MAF and the Connector, I am running the L76/L92 Combo with a 90mm Holley Throttle Body. I got it to maximize Air Flow..