98camaroLS1M6

iTrader: (35)

What exactly does a Maf translator do?

AKRA

It fools the computer in thinking there is more or less air coming into the motor so that the computer delivers more or less fuel. This is used to fine tine your air fuel ratio. You get the most hp between 12.7 to 13. The higher the number the lean it is running. The lower the number the richer you are running. You would need access to a wide band sensor mounted in your exhaust to measure.

2002_Z28_Six_Speed

iTrader: (19)

This is just a device for someone that can't tune with a laptop programming system. Some people like it because you just plug it in and set the switches. I think it is kind of a false sense of security.

2mffZ28

Its a patch job untill you can get a real tune.. When I get my hptuners mine is going up for sale..............................

soundengineer

iTrader: (16)

actually....making the most horsepower is usualy between 12.5~12.8 NA

2002_Z28_Six_Speed

iTrader: (19)

Can't you go as lean as 13 or 14 in a non EFI car? I guess if you aren't running it for long periods of time you could.

horist

yes, you can go that lean at WOT on an EFI Car, but most cars will make less power then with the added effect of increased cylinder temps

lean = power, but there's a limit... once you pass that limit then lean makes less power and eventually goes boom

AKRA

My HP peaked at 12.8 for the most power. From there and higher (leaner) or lower (richer) gave me less power.

Good luck,

Al

soundengineer

iTrader: (16)

its usually not a linear amount either...
12.5 down below peak tq...start to lean out at peak tq till peak hp...12.8
then start to richen up again back up to red line 12.5

2002_Z28_Six_Speed

iTrader: (19)

How do you get the actual AFR for a given situation? When I take your multipliers and multiply them by the stoich ratio of 14.737 I get:

17.2 17.2....16.8 16.99

All numbers in 16-17 range.

Is that what the car is really running? There also is the table for fuel air mult but that would make it even higher.

horist

Those numbers represent fuel to add... so it's a multiplier cause its' increasing fuel.. but to do the calculations treat them as divisors


Stoich/multiplier = commanded AFR

2002_Z28_Six_Speed

iTrader: (19)

Thank you so much! I got this now:
12,56 12,56 12,56 12,56 12,56 12,56 12,56 12,56 12,56 12,56 12,56 12,56 12,72 12,86 12,72 12,56 12,46 12,46 12,46
Glad to be on the same page with everyone.

Would it be bad to run numbers closer to 1 or .9? I though the factory config was over rich.

SSNAKEATER23

I Have A Question I Bought My Car Last Year And The Guy Who Had It Before Me Had It Tuned By Speed Inc. And I Am Wondering If Once You Tune Does The Tuning Stay In The Computer Even When You Disconnect The Battery. And Is It Worth Going In A Retuning At Any Point. I Have A Diablo Programminer, And The Maf Hp In A Box, Is It Worth It?

Thanks