Yesterday I received my Greddy V Spec FMIC. I installed it and everything went well until...

I looked at the pipe that runs from the turbo, I noticed that it doesnt have the nipple for the vacumm line that runs from my boost controller. Before the FMIC I had the boost controller hooked up to the WGA and the nipple on i/c pipe that runs from the turbo. I asked a friend and he said to keep the one vacumm line hooked up to the WGA and the line that went to the nipple run that to the BoV vacumm line. So I did that. Now for the big problem...

I have the boost controller turned all the way out. So I should be running like 13 lbs of boost if im correct which is what im running. But when I stomp on it, the boost gauge will run up to 30lbs I dont let it get that far once I hit 21 i let off the gas but you can tell that it wants to jump right up there. Then when I turn it upit does the same thing, jumps all the way up to 30 lbs...

So I need to know how other people with FMIC are running there Boost Controllers, where are your lines going to? Thanks alot in advance.

- Bobby

 

It's simple - they are just using the bov/intake manifold line as their pressure source. It's the basic setup that half the people use. You can find a diagram for it by searching for mbc install.

One line always goes to the WGA from the BC, but the other line can either go to the turbo outlet or the bov line. In your case, you need to put a tee in the bov line and send that tee'd hose to the BC as the pressure source.

 

warr...

i did just that, but im having problems now with the boost. I did do what u said with the bov line and WGA now im trying to set my boost and its boosting way past 21 and im only giving it one turn...

something isnt right... please let me know... thanx for the reply

 

From what you said above, you did not tee the line. If you did it properly, everything would work fine. Do you have the hoses backwards on the MBC? If they were switched, that would cause uncontrollable spiking. Please go view the Hallman MBC install thread by Plokivos. It has a diagram showing exactly how it should be setup.

To put it into words, the SIDE NIPPLE on the MBC (perpendicular to the main body) should go to the WGA. The bottom nipple (straight down from the MBC) should go to the TEE in the BOV line. Minimum setting is all the way OUT on the knob, or counterclockwise.

 

hey warr...

thanks alot bro for helping me out. i had the lines from the boost controller going to the wrong places. thanks again!

 

Sweet, glad we got it figured out quickly.