Just installed the atp bcd and a turboxs boost mbc. I attached the boost controller directly to the boost solenoid on the wga. I am getting some weird hesitation now on boost and don't want to damage the car, i put it on the boost solenoid as opposed to the lower part of the wga because my hose would not fit down there. Is this bad? I still cannot boost over 15 psi, so I figure I should just do it the way everyone else said. Thanks.
Boost controller install
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chriscecc914
Member
- :
- 06 MS6
probably because you cant run two boost controllers and your ecu is still regulating boost thru the stock solenoid. You need to remove your stock boost controller and put the new boost controller on the vacuum line that runs off the wastegate nipple.
Whats circled needs to be disconnected and the arrow is pointing to the line that the new boost controller needs to be connected to.
You might need to buy some longer vacuum line tubing
Whats circled needs to be disconnected and the arrow is pointing to the line that the new boost controller needs to be connected to.
You might need to buy some longer vacuum line tubing
Last edited:
chriscecc914
Member
- :
- 06 MS6
No problem. Let us know how it works out for you. And remember to start off with the boost controller set at the lowest setting and then gradually stepping it up as you monitor a boost guage and decide how much boost you want to run.
http://www.mazdas247.com/forum/showthread.php?t=123683964&highlight=MBC
here is a great how to by laloosh. what he says does not seem to match up with what chriscecc914 says.
the MBC goes in the fatter hose, not the skinny hose.
here is a great how to by laloosh. what he says does not seem to match up with what chriscecc914 says.
the MBC goes in the fatter hose, not the skinny hose.
chriscecc914
Member
- :
- 06 MS6
im not trying to tell you which size hose to use, im just saying that the line with the arrow pointed to it is the vacuum line you need to put the boost controller on. I have the atp kit so my vacuum line is all the same size.
this is correct...... buy new hose if you have to, or a little reducer. whatever it takes. hooking it up the other guys way is incorrect. his way will still keep the stock boost controller in play with the MBC sending it false signals. this method will work for a short while. until the ECU figures it out and pulls the boost back out, which it can do if you dont cap off the stock boost controller.
balkanbase
Member
- :
- '08 Mazdaspeed3 Sport
so what's the downside of "replacing" the solenoid? Disconnect both hoses on the solenoid, cap them, (small) line from actuator goes to mbc inlet, outlet goes to nipple on intake... its a 5-minute mod of sheer awesomeness (uhm)
Hello people!
I have ordered ebc with solenoid for my mazdaspeed 6 (mps 6 in europe).
So I have a question*
I know thaht boost is only about 10 psi in first and second gear, and I want to remove stock ebc, and install this new ebc to have 16 psi boost in all gears. Is this possible, and what will happen with afr in these two gears??
I am not planing to install fuel controller, car is stock with fujita cai*
Thnx
I have ordered ebc with solenoid for my mazdaspeed 6 (mps 6 in europe).
So I have a question*
I know thaht boost is only about 10 psi in first and second gear, and I want to remove stock ebc, and install this new ebc to have 16 psi boost in all gears. Is this possible, and what will happen with afr in these two gears??
I am not planing to install fuel controller, car is stock with fujita cai*
Thnx
Darth Vader
Member
The boost reduction in the lower gears is ECU controlled, via the throttle plate, not the WG/BCS.
There's another issue of clarification for others: Unless you are using the Turbosmart Boost T or the Turbo XS MBC, if you tap into the big line on the compressor housing, you will likely experience huge boost spiking and no boost control. This is because there's a restrictor pill in that line fitting that weakens the signal to the MBC, rendering it inop. You'd need to tap into the intake mani and install another fitting to fix this.
There's another issue of clarification for others: Unless you are using the Turbosmart Boost T or the Turbo XS MBC, if you tap into the big line on the compressor housing, you will likely experience huge boost spiking and no boost control. This is because there's a restrictor pill in that line fitting that weakens the signal to the MBC, rendering it inop. You'd need to tap into the intake mani and install another fitting to fix this.
Darth Vader
Member
It's not safe to run anything above stock boost without a fuel pump upgrade. Some are ok, some are not. If you aren't datalogging, you can create dangerous situations without realising it.
