AutoEuphoria
Member
- :
- '08 CPW Mazdaspeed 3
Hey guys.
I'm going to the track tomorrow morning, and I cannot get this figured out for the life of me.
I bought a TurboSmart MBC from a member here...it seems to work OK (not broken), but I'm having trouble with it. I didn't get any install instructions, so I just followed the instructions I found here on this site. I read a couple of different installs, and I originally had it this way:
MBC (SIDE ARROW POINTS) to bottom wategate actuator nipple
MBC (OPPOSITE ARROW) T'd into the BPV line.
All other nipples capped (the two on the stock solenoid, one on the turbo inlet pipe, one on top of the wastegate actuator, and one on the compressor housing of the turbo)
This setup worked OK, but the pressure difference between clicks was over 1 psi, so I had very little adjustability. I was then told that T'ing into the BPV line wasn't the correct way to do it, and I should have installed it this way:
MBC (SIDE ARROW POINTS) to bottom wategate actuator nipple
MBC (OPPOSITE ARROW) to nipple on compressor housing of turbo.
All other nipples capped [two on stock solenoid, top of wastegate actuator, and turbo inlet pipe...regular (non-t'd) vacuum line between BPV and manifold (like stock)].
So, today I installed it that way, but I can't seem to get any consistency that way. I'm still fiddling with it a bit to try to get it to stay under 17.5 in all gears, but it just doesn't seem to be very consistent from one minute to the next. For instance, I'll get up to 16.5 psi one time and then the next time it'll be over 18.
So, all I'm looking for is confirmation on the routing of the lines. I have no idea where they are actually supposed to go...I was just going by different threads I was reading. I need an actual confirmation that the setup listed above is the correct one. If it helps, the arrow on the MBC says "Arrow points to wastegate actuator". Again, it's a regular TurboSmart Manual Boost Controller...nothing fancy.
I'm going to the track tomorrow morning, and I cannot get this figured out for the life of me.
I bought a TurboSmart MBC from a member here...it seems to work OK (not broken), but I'm having trouble with it. I didn't get any install instructions, so I just followed the instructions I found here on this site. I read a couple of different installs, and I originally had it this way:
MBC (SIDE ARROW POINTS) to bottom wategate actuator nipple
MBC (OPPOSITE ARROW) T'd into the BPV line.
All other nipples capped (the two on the stock solenoid, one on the turbo inlet pipe, one on top of the wastegate actuator, and one on the compressor housing of the turbo)
This setup worked OK, but the pressure difference between clicks was over 1 psi, so I had very little adjustability. I was then told that T'ing into the BPV line wasn't the correct way to do it, and I should have installed it this way:
MBC (SIDE ARROW POINTS) to bottom wategate actuator nipple
MBC (OPPOSITE ARROW) to nipple on compressor housing of turbo.
All other nipples capped [two on stock solenoid, top of wastegate actuator, and turbo inlet pipe...regular (non-t'd) vacuum line between BPV and manifold (like stock)].
So, today I installed it that way, but I can't seem to get any consistency that way. I'm still fiddling with it a bit to try to get it to stay under 17.5 in all gears, but it just doesn't seem to be very consistent from one minute to the next. For instance, I'll get up to 16.5 psi one time and then the next time it'll be over 18.
So, all I'm looking for is confirmation on the routing of the lines. I have no idea where they are actually supposed to go...I was just going by different threads I was reading. I need an actual confirmation that the setup listed above is the correct one. If it helps, the arrow on the MBC says "Arrow points to wastegate actuator". Again, it's a regular TurboSmart Manual Boost Controller...nothing fancy.
