For those who asked for more details; yes the MBC works well on either the Cobalt SS/SC or the Ion Redline.

It helps you controll the maximum boost your smaller supercharger pulley will achieve. It's way safer than any other by-pass mod because you're sure that the pressure in the manifold will never exceed the pressure YOU have set the MBC. It's very cheap and easy to adjust.

Here is the way to do it :

Just install one MBC (like the 3/16" fitting size model in the following link; any color will fit LOL ) ...

http://www.boost-controller.com

... on the hose pointed by the yellow arrow in the following link (photo was copied from another user on another forum (thanks) since I have no camera :

http://www.putfile.com/jmc007

So the way to do it is to let the hose plugged just like stock, but to cut this very hose in the midlle and plugg the MBC on each side of the hose.

Hope this help !

 

So this will only change the BOOst in the really high rpms right, Also, what boost am I trying to get to, how much r u boosting to keep it safe, do I need this with my 2.8"

 

Yes.

I think you should achieve roughly 17 PSI from your 2.8" pulley and no you don't need it (the MBC) since you buy an already complete kit from Intense.

In my case, with a 2,6" pulley, my maximum boost can go as high as 22 PSI, but I can set it down to whatever 14, 15, 16, 17, 18, 19, 20 or 21 with the MBC.

Since my tuning isn't finished yet and since I only have access to 91 octane, I don't ride the engine in the last few RPM's too often for now.

Now it's set at 21 PSI, but with a good 5 or 6 degrees of knock (still untuned).

Dyno tuning is pricey too ...

 

That looks like the first pic of my engine bay I ever took... Except it's not lol... Now do you have to have the Boost Bypass mod done to run the MBC?

 

No if you read carefully, let the hose plugged all like stock, but just cut the pointed hose in the middle, No by-pass mod, just the MBC.

 

What color did you get Jmc?????? hahahahaah

 

The comp opens the valve also when things get really hot intake temp wise. can it still do that with this on it?

 

So this doesn't apply if I have the Intense Stage 3 kit? Just do the bypass mod? Is the bypass mod safe?

 

it is never safe to change what the factory has set your engne management to do. but it works, and with that size pully you shouldn't see enough boost to do much harm

 

I tried a boost controler on both hoses and neither worked to increase boost. Just reduced peak boost.

 

LMAO! thats what its for man! you cant increase boost on a supercharger with a boost controller, lol, Itll never boost more than what the pulley is booting, If your pulley is boosting 17lbs you cant boost 20 with a boost controller, now you sure can boost 15 and keep it safe.

 

it doesn't increase it like you can on a turbo application, just keeps it from going beyond a preset level. read below, which explains why he has it...

 

So with a 2.8" pulley the bypass mod is all I need to do? There is no way to get full boost at the top rpm without the mod right?

 

Black Body w/ Black Knob

 

Either running the by-pass mod or installing the MBC (set higher than 12 PSI but equals or smaller than the 2.8" pulley max psi) will help you achieve full boost.

 

This seems like an excellent idea. How do you know how much boost you have it set at? Like if I have my boost set at 15 psi, and I wanted to raise it to 18 psi, how would I know how much I need to turn that dial? Is it just trial by error? Or like 1psi per turn?

 

The stock boost gauge (or the Aeroforce Interceptor gauge) will show you the maximum boost you achieve after turning the MBC knob either clokwise or counterclockwise.

 

So can we put a Electronic boost controller now??? that would be awesome inside the car...tone it down for daily driving then turn it up when you want to race.

 

JMC...would you be able to put a 2.7" on a stock car and then turn down the boost to like 16 psi? I figure it would give even quicker boost response but I dont know if it would go lean too quickly because of how fast the boost builds or what. What do you think?

Dan

 

that would be a cool idea if you were running anything less than a 3".......are you still on the 3"?

 

Just PM Twincharged; he already has one installed.

 

It depends on the other mods you'll run with the 2.7" pulley. Stock injectors won't support a header, a catback, a CAI and a 2.7" pulley. What year is your car ?

 

05 redline only has a K&N CAI. Was gonna put a pulley on it and then use a boost controller to put the boost levels down until I get GM stage 1 or another kit depending on what pans out to work the best. I also have a scan tool coming so I can watch afr and KR. I just dont want to put it on then realize I have to swap it out cause the car is hating it.

Dan

 

yeah for now but iam going to get the Intense stage 3 kit soon

 

Dude, You can save yourself $300.00 right now...

Your body came with a device that lets you "Tone It Down" already. It's called a FOOT.