I just got my 1997 a4 chipped with the dahlback chip and its running 15psi but i also have a MBC but i didnt put it in yet and i wanted to one how to put it in and 2 if i put it in and raised the boost to 19psi would i need to change the fpr or would it run fine? other mods done to the car are intake turbo inlet exhaust and a testpipe and an upgraded d/v

 

just put a n75j valve on it if you want 2 more psi, but if you are going to put a mbc on there i would say put a 4bar or 5bar fpr, i think your year comes with a 3bar. i have a 4bar fpr if you neededit.also just like with my experience be ready for a whole world of limp mode.

 

You dont need the mbc with a k03/k03 chip. Never mess with your boost/fuel unless your timing is being adjusted as well. Youll end up running either really lean or really rich at some point in the power band unless you have correct timing adjustments to go with your boost/fuel adjustments. What you are trying to accomplish is called ghetto tuning.

 

lol ghetto tuning thats the new word for it huh?? I like it

 

ya and there are other terms for it which arent so politicaly correct, so thats as nicest way i could put it. Its amazing how many pepole think they can just get a mbc and a fpr/big injectors and assume theyll be getting safe efficient extra power. I want to slap them all! [sm=chairshot.gif]

 

comes with a 5 bar stock i believe. but yeah...don't bump up the boost. play it safe and get the n75j if you want, but stay away from the mbc.

 

stock is 4 bar

 

i stand corrected...ty good sir

 

Ditto.

Question: Why didnt you just get Dahlback to tune the chip for higher boost applications? I mean sh** you paid enough for the chip. They would do that for you, then theres no need for an EBC or MBC. Put the money where it counts, into a larger turbo if you want more power. Turning the boost up on a K03 isnt going to give you some big improvement. Its efficiency range isnt that high.