Gutting MAF correction amount?

[KeithMac]

I`d seen 3150 hz on mine prior to modifying it, pulled the screens for some headroom (same with the bypass).

[blindmist]

Well I am wondering this because I have 550's and my 360's. I need to do an engine break in ~1000 miles. I was thinking that the gutted maf would allow me to run my 550's without having to change the tune in my EMU. I haven't had a chance to even log on this car yet. I think I am just going to put it to the stock setup, run that for the break in, then once I can put power on the ground, start messing with my EMU and my 550's

[KeithMac]

Best way, I wouldn`t mess around tuning it the same time as running your new engine in.

[vr3.9]

Bottom line on gutting a maf. You will need to tune. It will not be easy to tune. Low fuel trims will never stabilize like before. Temperature changes have more effect on tune (at least with an FMIC) Since you no longer accurately measure the true amount of air but a varying % of the air things like timing gears will make it run lean. The results. Much more air flow available quicker spool and pretty sure more HP available.

[lat42MS]

I`ve done the Mellon Bypass mod as well, to be honest if I`d started again from scratch I`d just do the bypass and leave the MAS alone.

Where are the melons on our cars, and how do I bypass them?

Seriously though, never heard of "the mellon bypass mod." Could someone enlighten me?

[i3igpete]

the mellon bypass mod is to leave the BOV recirc port open to let unmetered air thru the hole.