it wont with your chip unless you put it in there backwards, then it would run of the wastegate (5psi)

 

hey thanks for the warning cincy im waiting on the BM too from modshack, except im running at almost peak boost 16-17 psi on k03 .. i can probably milk another 1-2 psi, at least ill be able to get rid of creep and hopefully make my boosting a little smoother

 

Alright, so I've been doing hard runs for the past 2 days and still haven't seen a change. I went ahead and made 3 more turns of the dial to see if i just hadn't upped it enough yet, but it still has the same 15 peaks, 10 steady. I put a new spring in the DV, so I don't think that's the problem (and it holds fine at/above 15 when the N75 is in). Any more ideas?

 

When i installed my brothers we had problems lowering it enough, not getting it up Ill try to think of what we did since it took us a while to get it set.

 

Thanks, I appreciate the help. It just seems everything I've done with it, it hasn't changed at all. After getting chipped and having the N75 in, i found out how long it took the ECU to figure everything out and adjust, and i've gone WAY past that distance in running it on the MBC

 

quick question... can you take some pics of the N75 and which hose you ran into the MBC etc. ... the mbc im gettign takes a hose from the bottom of the N75 and into the BM and then a hose from the BM to the N75. take a few snapshots, and lets take a look if we can source a different problem? soudns to me that the ECU is not getting a proper reading from the MBC you have there has to be a bad reading to one of the sensors. did you check for any leaks ? are all the ends tightened properly? go through your setup again and check to see for any leaks or cracks. take a water bottle and spray a lil water at the ends see if it bubles while at idle,

 

Both peices to the left (mbc and n75) come from the charge pipe and will be your in, the ones on the top are to the wastegate or your out.

 

I'll try and get some pics in the morning tomorrow of the entire setup. Basically I just took the hoses out of the N75 and attached them to the T splitter. The two sides each got one hose from the N75 and the bottom of the T ran to the MBC.

 

I was having similiar problems. It ended up being a bad MBC. To test it, crank down the valve all the way closed. Try to blow into the one end...if air comes out the other end then the valve isnt closing all the way and its faulty. I have the same MBC and sent it back. They sent me a new one, and so far i am having a similar problem with not being able to get the boost to climb.

 

ok i installed my MBC now. only 1 hose was disconnected from the bottom of the n75 into the BM and back into the same slot as the original hose came out of the N75.

what i can determine from your synopsis is that you are definetly getting a faulty reading from somewhere. if all your systems are not up to par then when you are trying to boost more than before the system will not allow it. try running it through a VAG. if not then do it the ghetto way (my non vag com way) most often than not the culprit is the MAFS. try unplugging it and run the car a few miles. (you will get a check engine light dont worry once you plug the MAF again and run it a few times it will go away) IF the car runs better than before there is a 99% chance the MAF is failing under high boost, causing the ecu to reject the reading its getting and limiting your boost production to what you see. i was peaking 16 psi holding at about 13 or so depending ont he gear and the rpm. btw its ok for boost to drop as the rpms rise.

can you describe exactly what rpm your boost is dropping at? and also when you are peaking boost? what gear are you doing runs in? you should really write all this stuff down along with the # of cranks you are giving the BM.

I ran into a couple of problems with my BM yesterday ( i did a 3 hour tune on the Highway, drope 230km in total but i got it in the sweet spot ) i started hitting limp mode. where the boost will rise right up to 15-16 but as soon as that happens the boost drops down to jsut 10 psi or so and it will hold around there no matter how much gas i give. i corrected the problem, having said that im wondering at what rate is your boost droppign and as i asked b4 rpms, gear etc.