“Back pressure” Manuel Boost Controller
Hi guys!
After having some problems maintaining the boost level at high speed, I have installed a Manuel Boost Controller.
Before, the boost pressure when accelerating from 0-140 km/t was around 1.0 bar between 0-90 km/t and at 90-140 around 0,8 bar.
But when traveling at 110 km/t and then accelerating “hard” but still in 5 gear the boost pressure was only 0,3 - 0,4.
After installing the MBC, the boost gauge shows peaks around 1,8 bar when accelerating in 3 gear, and easily hitting 1,3-1,5 bar when accelerating in 5 gear at 110 km/t.
Of cause, I let go of the throttle instantly at those readings.
However, in my opinion this is not possibly with my current setup with standard turbo.
I therefor search through the web, and found this video on YouTube.
https://www.youtube.com/watch?v=w0lxBJ4k8mk
At 2:50 – 3:45 in the video, it states that the boost showing on the gauge is much higher, than the actually boost level.
I do not want to ruin my car, and would like a steady 1.0 bar at max. – But how do I get that?
If I turn the nob, so the gauge is showing 1.0 bar, it reached 100 km/t at around 8 second. Telling me, that it is not “enough pressure”.
I have checked the gauge with my compressor, and the readings is fine.
My installation is the same as on the video.
Help or comments is appreciated.
Alternatively, is the best way to simply by a Tactrix 3 ports plug and play? – Or other?
http://www.tactrix.com/index.php?opt...hk=1&Itemid=53
“Back pressure” Manuel Boost Controller
My guess is you have connected it wrong and the wastegate actuators are not seeing any boost pressure, so giving you absolutely max pressure the turbos can give. Just like if you disconnect then completely.
I have bought one of these MBC before and they are real crap if it is one of the £12 versions.
Many people have said they have fitted this type of mbc correctly but most have not.
My version of this mbc did not work at all it was so badly made with swarf and globs of paint on the inside of the mbc it was blocked. It have max boost all the time.
I threw it away and bought a mbc that worked.
As for the 3 port boost solenoid this will not do anything for you with respect to boost control unless you can reprogram your ecu. If you have standard boost pressure set in you ecu changing the boost solenoid will not change the boost pressure.