I have a gretty t.v.v.c mbc I just recently installed, I installed using the method of wastegate to mbc and mbc to bov line, new hoses all new product.

I do have an aps bov, and on first gear of course im not boosting as much so maybe 6-10 psi and if i rev it hard ill hit the 20+ psi and shift and i hear my aps bov release air.

Now, when I continue shifting I get about 17-18 psi and accelerate harder and shift gears and I dont hear my aps bov release air, and i dont hear my turbo spool, and feels like no power what so ever. Could anyone give me insight to this dilemma im having?

 

For historical context it's worth also reading:

https://www.evolutionm.net/forums/sh...d.php?t=244457

and

https://www.evolutionm.net/forums/sh...d.php?t=244515

Which are on the same subject.

 

Don't tap the BOV line for your MBC.

 

is ur BOV leaking??