my mbc looks like one you have on your sign.
and it installed between wastegate and n75… maybe I should bypass my n75…

 

Well mine isnt a ball/spring type. If yours is, you should probably keep it inline with the N75, if not youll probably run into other problems. If the mbc you have IS the SAME as mine then yes, bypass the N75.

 

Hope im not late

can you post a link/pic of your mbc?

I think your spiking when you feel this "cut" due to the mbc type/way its run. Also keep the boost under 20psi w/o a chip. your not really going to get more out of it above that, so dont risk the extra heat and extra air.

 

IS? … is it that little T thing? ….mine looks like this eBay link (got this one too for a friend)

 

That is the same as him and the one in my sig. Click the A4 in my sig if you havent already seen it

 

should look like this without the n75 being used

 

yeah... i've seen it .... tnx to u i did my diod mode.... so answer is- it was stupid idea go above 17-18… oh wait u did say keep it under 20, but it wont stay there… for now i installed mbs after n75 i guess i'll try running it w/o n75

 

bypassed n74 last night, it was late so i test drove it around my block only, on the way to work today it was jerking off every time i floor, boost was jumping around 10-20 psi, oh and CEL flashed once (unfortunately I left my scanner at home, but it’s off now so nothing serious there)…. overall it feels a lot smoother and i’m pretty sure faster response if accelerating slower.
no problem if i have it under 10 psi
i was thinking because of mbc (bleed valve type) i’m getting boost spices, i’ll try find cheep ball-spring type bc today on the way from work…

 

its spikes and you have that backwards. Ball and spring's spike badly and bleeds dont. You have something wrong.

 

OK so after reading all this I am thinking that I need a MBC and need to bypass my N75. I do NOT have a MAP sensor so if I got just the MBC could I safely run 16-18PSI??? It's under 20. I don't have a chip or anything though just a Forge 007 DV. Here is a link to the problem I am having:

https://www.audiforums.com/m_593551/tm.htm

Josh