[Easy04_jm]

Yea just curious but i have and ram air intake.....well the fender-well intake for my 96 3.8l v6. My question is i think it came off of an 5.0, so if it did what size would the maf. be cause i think it goes by the housing size. Plz let me know if someone knows. ty oyea we made some extra tubing to make it work....just so that you know why it looks like that lol.

[mdvaldosta]

It's based on the housing size. I can't remember the stock size, I think it's 65 - 70mm though I'm not sure.

[Easy04_jm]

ok....but would that be the size of the housing that came with the intake? Like i said im pretty sure it came of an 5.0. But it was an kit i got from an friend. I got and xcal2 and im trying to tune it so i need to know. I thinks it is bigger than the one that is stock on the 3.8v6 off an 96 engine. Ty for the help.

[95opal]

If you said its from a 5.0 and thats the pic of it. Then its a 70mm off a 94-95 car.

[HMUSN]

Originally Posted by Easy04_jm ok....but would that be the size of the housing that came with the intake? Like i said im pretty sure it came of an 5.0. But it was an kit i got from an friend. I got and xcal2 and im trying to tune it so i need to know. I thinks it is bigger than the one that is stock on the 3.8v6 off an 96 engine. Ty for the help.

dude.. if you want a bad ass tune and since you already have the x-cal.. get some wide band 02's and data log

[Easy04_jm]

well i have the o2 sensor simulators..... what the differrance and give me details lol! ty

[HMUSN]

OK I KNOW THIS IS LONG... FORGIVE ME...

Seems some people have questions on the purpose of a Wideband O2 sensor so here is why you need one if you plan on more modifications. In case you don’t know much about AF, Lean has higher AF numbers and less gas, and Rich has lower AF numbers and more gas. If you run too lean your motor will get extra hot and lead to issues like detonation which will burn holes into your pistons, blow head gaskets, grenade motors, etc. Running too rich will wash the oil off the piston rings and cause issues due to excess friction. Lean will get you more HP, but will be closer to the edge of detonation. Running rich will net less HP, but will be more tolerant of bad gas, hotter temps, etc (safer). Timing also plays a role in heat and detonation so it’s good to know that a lean mixture will handle less timing that a rich mixture due to the cooling effect of the extra gas. Higher octane is required for leaner / more timing tunes. Never ever run 87 octane in a highly modified vehicle, and never run 91 octane in a car with the stock tune for 87 or you will loose power and get worse gas mileage.

The stock O2 sensors are narrow band sensors that have the very good resolution around the stoichiometric AF of 14.64, but have very poor resolution in the range below 12. The Narrow band gauges are a waste of money, they do nothing as far as actual AF at WOT because they are not accurate at the desired ranges. They are designed to use about 90% of their output range centered directly around AF of 14.64, so you get excellent resolution between 14 and 15 which works great for part throttle driving, gas mileage, emissions, but is way too inaccurate for WOT ranges.
The wideband O2 sensors have a linear output range from about AF 9 to AF 18 so they give accurate results over the entire AF range.

Here is some general AF target ranges, but feel free to ask any questions you might have.
NA car 12.4-13.2
Blown Stang 11.5-12
Blown Focus 11.0-11.8
Heavily blown 11.0-11.5

If you are doing any high speed runs the WO2 is the most important gauge to monitor.

[Easy04_jm]

thnx for the info dude, and were might i get these o2 sensors at? an normal autozone?

[HMUSN]

nah man.. pm me i'll hook you up with a guy that sells them

[HMUSN]

auto zone hahaha