for all of you using he MBC's what do you guys think the best value is for somebody lookin to get a decent MBC while he saves up for an EBC ( but that needs to have good support for mods like intake, TB exhaust, emanage, hks cams, cam gears, walbro pump, 720cc injectors)

basicly the question is what is a cost effective solution of boost control for somebody with quite a bit of power added that is easy to use...

-non

 

Go to Buschur for an inexpensive MBC. This is a well worth the $$$ mod and easy to install. I put one on a friend of mine's Evo and it is definitely well worth it. Nothing like 19 psi all the way to redline. Warranty is holding me from installing one...

 

You can make your own if you want to do it cheaply.

Quick Google search turned up http://www.well.com/user/mosk/boost.htm#DIY%20anchor

I'm sure you can find others if you don't like these.

 

****! None of those links work, sorry. I'm dumb.

Still, a google serch will turn up some plans!

 

well I dont think I'm desperate enough to make my own...

also how high will buschurs go above stock??? and has anyone had any problems with it...

-non

 

Any MBC will alow any turbo to go to its maximum boost. Even one you make yourself.

 

Correct me if im wrong, but all a boost controller dose is trick the turbo into thinking that it isn’t at full boost yet right? What happens with the fueling? What happens if you turn the boost up to a point where the engine can’t compensate for it anymore? Id say get a decent ECU. This will enable you to run what ever boost you want (within turbo limitations) and do it safely. Tell me if I’m wrong!

 

You are wrong. An MBC just eliminates the ECU as the boost controller. It controls the boost pressure via a vacuum line to the wastgate. When enough pressure is built up in the intake, a valve opens in the MBC to open the wasegate. The ECU knows exactly how much air is going into the engine at all times with an MBC. It also knows the air temp, pressure, and density.

The fuel system can handle 19 psi of boost across the entire power band. If you do happen to put in more air than the fuel system can handle the ECU shuts off the fuel injectors entirely – a process called “fuel cut.” It seems unlikely you’ll ever hit fuel cut with an otherwise unmodified Evo before you reach the detonation threshold.

 

Stay with a trusted name, just search the boards to see who is having success with what brand. I chose AMS, price and overall satisfaction from the posts I read brought me to this decision. Also make sure you run a quality boost gauge.

 

Thank Staori. I was thinking of the MBCs on Ford mechanical systems. So effectively you car cutting the ECU out of the boost loop? Why don’t people get the stock/standalone ECU remapped to run a higher boost?

 

I use the Hallman Evolution Kit MBC. I love it, and it works great. For me it combines the best of both worlds. It's manual so it keeps the cost down, but this kit has a cockpit remote via cable that runs into your car, so you can adjust the boost inside your car with out having to get out to adjust under the hood like other conventional MBC's. I have mine mounted right underneath the dash by my steering wheel. You can't even see it, but you can reach down and adjust while driving to dial your boost in just where you want it. You can get them at www.boostcontroller.com They sell for $160.00. Well worth the money in my opinion.

 

I'm thinking the same thing also... so if we reflash the ECU... we don't need a MBC?

 

I had my car DynoFlashed, and while it did hold peak boost longer it did still taper. However, I did tell Al that I was installing a MBC so that could be the reason. I installed a Perrin MBC and it still doesn't hold full boost across the rev range but the drop off is nowhere near as severe. Also, with the DynoFlash the car pulls hard even when boost does start to taper.

 

Exactly. The disadvantage with that is once it's done you can't just turn the boost up or down for any reason. You have to have the ECU flashed again.

 

$40 shipped and I hold a constant 1.4 bar of boost, it is a universal mbc


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