REDSTALION

hi guys,

i have just bought a AEM AFR gauge with wideband O2 sensor, so any one know what the ratio should be???
i already have Xcal II at home so im going to do it by my self, so one have a background regrading the air and fuel ratio????

REDSTALION

any suggestions??????hmmm

REDSTALION

come on ppl no body here know whats the Air & Fuel ratio is???????????????????????????????????

code3GT

For a N/A car, the A/F should be around 13.0 at idle and 12.5-12.9 at WOT.

REDSTALION

aha, but do mod's have any thing to do with the AFR?? i mean like if some have a stock car should be diffrent than a car with full bolt ons????

REDSTALION

any body else have an idea about the best air and fuel ratio for 4.6L????

code3GT

What, my post doesn't count? Your A/F should still be in that range even with a stock car.

fiad06

Guys he is less patient then me...

GT_Bob

Your stock computer program is going to attempt to keep your a/f ratio between 12.5/1 - 13/1 like Code said. Bolt on something that theoretically changes your a/f ratio, your computer will adjust the a/f ratio back to 12.5/1 - 13/1. If you bolt something on that changes the a/f ratio farther than what the stock computer can adjust for, you'll run into a lean/rich situation. Neither is good, lean worse than rich.

Unless you're lean and rich and then you get all the good looking babes.

[sm=Awwww.gif]

REDSTALION

sorry CODE but u got me wrong plus u didnt answer my 2nd Q? thats why i asked for more opinions, because my car is realy waisting alot of fuel plus of u go to the back of the car u cant breath, thats why i think that i might be running rich and i want to know whats the exact ratio should be with all of my bolt ons and cam's..