Manual boost controller
10 February 2015, 04:53 PM
#1
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Manual boost controller
My WRX STi V2 Wagon came with an MBC which the dealer has wound back to around 5/6psi
Following on from this:
Any technical boost gurus care to help?
Thanks,
Mike
Following on from this:
Makes good logical sense to me. Before I plumb it back to standard do you think it would be ok to adjust it back to a bar, just in case it is masking problems. At least then I could easily turn it back down until I've resolved any issues.
I'd love to be able to get it into Track 'n' Road/Race Engine Calibration for a bit of a shakedown but their dyno is only 2 wheel
I'd love to be able to get it into Track 'n' Road/Race Engine Calibration for a bit of a shakedown but their dyno is only 2 wheel
Turning it up to 1bar might not show the problem if there is one? Some people just fit them as its a very easy way of adding more boost,just not a safe way to do it. If yours is the v2 which I think it is then if the map sensor is stock then it will fuel cut at 1.2bar anyway as far as I know. Maybe someone fitted it because the boost solenoid is faulty or a missing restrictor pill?? I'm really no expert so before you turn it up I would post a thread asking advice because there are some top people on here who really know their stuff mate.
Thanks,
Mike
11 February 2015, 09:47 AM
#3
wound back to 5/6psi means it's not doing anything for you - that's just the wastegate pressure.
Did they say why they wound it back/turned it off? Unless your in a position to have the fuel/boost levels checked then I wouldn't go "winding up" the boost as you have no way to tell if the car is leaning out until the engine shafts itself.
Did they say why they wound it back/turned it off? Unless your in a position to have the fuel/boost levels checked then I wouldn't go "winding up" the boost as you have no way to tell if the car is leaning out until the engine shafts itself.
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