just bought a mbc, need a diagram or pics on how to install on my kick *** 87 turbo. any info is appreciated.

 

It goes in series with the air line to the wastegate actuator.

 

i was just under the hood a sec ago. i removed the the intake filter from the turbo and noticed a line from the turbo itself going into the wastegate actuator. am i in the right direction?? thanx

 

MBC? Master Brake Cylinder... am I confusing my acronyms?

 

manual boost controller

 

<---- RETARD. Thanks.

 

Yes.

 

how simple is it to install?do i run the line from the turbo to the "in" on the mbc,and a line from the"out" to the wastegate acuator

 

Correct.

Then make sure you at least have an FCD, and start out with the controller all the way opened up.... don't want to overboost and lean pop your car the first time out.

 

im not sure what an fcd is, as far as upgrades go i have a racing beat 3inch down pipe. into a apexi 3inch exhaust. fuel cut off switch, k&n intake and a walbro 255 lph fuel pump

 

lol... fcd fuel cut defenser i have one

 

You should be really careful, because I guarantee you are already boosting over stock boost with the 3" exhaust. With my controller all the way open, and 3" turboback, my car makes boost to wherever it wants. It will boost up to 6 pounds (stock), slow down a little, but will keep going up and up until I let off the throttle.

 

will be under the hood tomorrow.hope to hear from you again thanx for your all your help thank god for all rotor headz.

 

I would recommend NOT to install such things...

They will usually get you into more trouble than it's worth.
I know the temptation to get more power...faster with such a "cheap" device, but be warned it will usually lead to a blown motor more often than not...


-Ted

 

thanks for the info Ted i was kinda iffy about the mbc i have one also but havent install

 

whats the difference if i used a "cheap" mbc as opposed to the $175 name brand one?? dont they serve the same purpose?

 

with all my minor upgrades i know im running well over stock, i just want maybe a pound or two more of boost.

 

You are already getting well over "a pound or two more" with your exhaust. Installing the MBC will only choke it more. Unless you have a way of monitoring boost and AFR's - don't do it.

 

in the process now of installing a boost gauge and a afr. i just want to get the most out of my stock system b4 i go crazy with all the major upgrades,turbo, fuel ect.ect....

 

A pound or two over stock is already 7 PSI (or more). A few more pounds is 10 PSI (or more). At 10 PSI, you are past the point where the stock fuel system can be safely used.

Also manual boost controllers are notoriously twitchy to adjust so you will likely find yourself overboosting while you set it up.

And of course, the stock S4 wastegate is very small which will mean you won't have much control anyway.

 

You're right...an MBC is an MBS is an MBC...
I've never seen a $175 one - GReddy? HKS?
It's either a needle valve or some kinda ball-n-spring set-up.
The problem with these things is that they are adjustable - usually, via a ****.
The temptation to turn these things more and more is dangerous.

At least with EBC, the majority of them (if not all) use buttons to adjust, and very few use ***** for adjustment (i.e. increase boost levels).
It's a set-n-forget component.
Yes, these are pricey, but they are worth every penny, IMO.

BTW, as others have mentioned, your set-up is almost at the limit if the stock ECU.
The stock boost sensor cannot "see" boost levels about 15psi.
You should be running very close to that right now.
You really don't need to raise your boost 1 - 2psi higher.
Besides, you really won't see that much of a power difference if all you're looking for is a couple more pounds of boost...


-Ted

 

get a piggyback( apex'i safc) or something to controll your fuel like a aeromotive fpr. then you can run 11-12psi with no problems. i would also tell you to upgrade your secondary injectors but i did run the stock ones for well over a year and never had problems. anyway if you put your mbc withouth anything to controll your fuel, you can be looking at a blown engine if you don't know what youre doing. later

 

ok there is two types of mbc.....attached is the ball and spring type. now on this one you wouldof course put the T in line between turbo and WG, then you would run a line from the blue nipple to the arrow on the BC then leave the other vented, correct???

 

[QUOTE=rx7legend;7501281]get a piggyback( apex'i safc) or something to controll your fuel like a aeromotive fpr. then you can run 11-12psi with no problems. i would also tell you to upgrade your secondary injectors but i did run the stock ones for well over a year and never had problems. anyway if you put your mbc withouth anything to controll your fuel, you can be looking at a blown engine if you don't know what youre doing. later[/QUOTE i heard that i can safely run no more than 12 pounds w/my stock turbo and my upgrades without hurting the motor how true is that?? anymore boost than i would have to go into fuel, injectors and all the big boy upgrades im puerto rican and all the rotor heads i hang with majority are from PR and thats all they do is breathe and live for the rotary so im just going by what i hear from them

 

Well, I don't know about them, but I can guarantee that you are already running lean under boost. You have a full 3", which renders your wastegate useless, and stock injectors. You really need to make sure you are getting your fuel before you start upping boost, unless you are looking for a quick way to blow an apex seal.