I was originally OFF PCM controlled boost and on my AGP WGA with a MBC
So, my question is. Should I switch over to PCM controlled boost and ditch the MBC now that I have FM?
How do you switch between PCM Controlled Boost and OFF PCM Controlled Boost. Are you talking about just removing the vacuum lines? What exactly are you doing to be On or Off.
How do you switch between PCM Controlled Boost and OFF PCM Controlled Boost. Are you talking about just removing the vacuum lines? What exactly are you doing to be On or Off.
there are 3 solenoids that your vac lines connect to causing you to be "on pcm controlled boost". When you take them off, you are running vac lines directly from turbo/wga/mbc etc
there are 3 solenoids that your vac lines connect to causing you to be "on pcm controlled boost". When you take them off, you are running vac lines directly from turbo/wga/mbc etc
Thank you, that's what I figured. I didn't know if there was more to this.
I thought there was no need for a MBC or a bleed when running PCM control.
If you want to run more than 14 psi that's where the MBC comes into play.
when on PCM boost controll the PCM will learn the WGA and adjust to fit factory parameters. The WGA on PCM will hold boost better but you won't get as big of a boost spike.
When I had my AGP on PCM control, I set it spike and hold @ 15 PSI, but some times it would spike lower. To run a 18 spike settle to @ 15, I would use a MBC.
If you want to run more than 14 psi that's where the MBC comes into play.
when on PCM boost controll the PCM will learn the WGA and adjust to fit factory parameters. The WGA on PCM will hold boost better but you won't get as big of a boost spike.
When I had my AGP on PCM control, I set it spike and hold @ 15 PSI, but some times it would spike lower. To run a 18 spike settle to @ 15, I would use a MBC.
Well that would explain why I couldn't hold more then 14 at redline LOL.
So since it is on PCM control, What vac lines do I put it in? Because off PCM control I had it spliced between the turbo and WGA. but now those lines are going to the solenoids.
Well that would explain why I couldn't hold more then 14 at redline LOL.
So since it is on PCM control, What vac lines do I put it in? Because off PCM control I had it spliced between the turbo and WGA. but now those lines are going to the solenoids.
Green line goes to turbo
Black line goes to back of WGA
If you want to add a MBC to PCM controlled boost, just "T" the black line
with that boost spike comes a torque spike. On time I dyno'd my car over boosted big time and made like 244whp but 330 torque at the wheels
Of course if I would not of fixed the overboost, I would of ended up burning my car to the ground.
cool, i see what u meaan now.....
i have stage to and try the boost controller thing and didnt like it at all, it was set to spike at 18psi but i felt the car weak as hell, so i just decited to leave as it was.
cool, i see what u meaan now.....
i have stage to and try the boost controller thing and didnt like it at all, it was set to spike at 18psi but i felt the car weak as hell, so i just decited to leave as it was.
Got ya.
In my opinion Tee'ing a MBC is only advantagous if you have a "in-cabin" boost controller. If you have one that you need to pop the hood to adjust, then just run off of the green line going from the turbo to the WGA.
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