I have a VAST 3- tune for my audi, just had the new 3.5" intake built with the maf bracket from 034motorsports. inner diameter => 84.9313mm. I've used lemmiwinks to tweak my file, but cannot take the tune off to adjust manually. I will be running the nefmoto stage 3 tune when i get my injectors. I want to run the intake now, till I get my injectors, because well it looks pretty (I wont lie, much better than stock piping).

From http://s4wiki.com/wiki/Mass_air_flow says that the deviation for the maf is 35.6% difference from stock to 85mm. So in theory from http://s4wiki.com/wiki/Lemmiwinks I should change the value of the primary fuel tweak to 35.6% in order to correctly scale the maf.

Just to be specific, changing the primary fuel tweak to 35.6% will properly scale the 85mm maf to my stage 3- tune, and thats all I would have to do?

appreciate it, just very cautious since im just starting out with these tunes

Do not try to use lemmiwinks to tune for a maf, It will not work. Lemmi tweaks only work for fueling in closed loop. When you go WOT the ecu will still run based on tuning. Like DD said, wait til you get injectors too and do a full tune.

I will give you 60lb ev14's for 185 shipped. Brand new.

search berttos stage 3 tune.  siemens are generally frowned on due to erratic low pulse-width behavior.  that said, berttos has an off-the-shelf k04 tune legit stage 3 and refined many times.  just a thought, might not be the worst move.  should run ok - i would guess.  ev14's are much better bang for your buck if you are willing to learn to tune a bit more.

then i guess i'd take them just dont have the cash at the moment.

oh i know, should have known i'd get screwed with VAST, but yeah i would start over but no base tunes to work off for stage 3-. I'm not really familiar with tuning. Only good with logging.