Is it worth it? I am on the fence about and getting it and wanted some opinions of what others think about it? I currently am using a Forge unos manual boost controller and thinking about a GM 3 port or something similar.

 

Is something wrong with your current setup, is there something you want to achieve by making the switch?

I have ECU controlled boost ATM, I'm getting boost creep and hit boost cut in 2nd and higher, it would be handy to have a MBC to turn it down a notch.

IMHO, if it is not broken, don't fix it.

 

Actually nothing was wrong with my old set up (MBC), I have revised my power combo and getting a complete new tune and it is offered as an option with ecu controlled boost. That's why I am wondering if I should go with it for an extra $50

 

I had both setups i say go with the MBC..less chances for electrical malfunction and over boost.

 

There are a lot of factors that play into whether ECU controlled boost would be better for you. For starters, if you don't know how to tune at all, you won't be able to make any adjustments with ECU boost. That being said, it's not always wise to make adjustments to an MBC unless you're also capable of checking and adjusting AFRs and timing.

Personally, I've been on ECU boost for a couple years now and i'm actually thinking of switching to an MBC now. The main advantages to ECU boost that I see are being able to do boost by gear and being able to retain the factory boost control safety features. MBCs are much easier to work with though and tend to perform a little better.

 

Thanks. I will not be tuning the car personally, it will be done professionally. Probably just going to see what the tuner recommends.

 

Simple way to go really is just MBC. It works, and it works well with no extra BS involved.

 

I switched to ecu controlled boost and like all the extra boost control features.

 

For ease of adjustment go MBC. They are cake to adjust when tuning. I have ran both ,but honestly if you never really change boost go with a 3 port. I like it because of the drastic weather changes where I live. Always can target the same PSI from cold to hot. Boost by gear is nice also. You can also tune it to hold more PSI to redline. Some people say it doesn't spool as fast as a MBC, but I honestly cant tell that much of a difference. Also as you stated, tuner preference is a big one. Both are good in my opinion.

 

Thanks for sharing. I do like the fact that it would hold the same boost to red line and not taper off.

 

My friend, ecu boost will outperform an mbc any day, it all depends on the tuning , if you still have a stock turbo however you will not get the full benefits of ecu boost, since the boost taper happens because the engine outflows the turbo, it doesn't really matter much the wastegate is closed or not, ecu boost benefits will be only marginal, but with a bigger turbo you're losing spool by using anything other than a 3 port, also make sure you have a good tuner, way too many people doing half *** tunes in central FL, good luck.

 

i've had mbc, then grimmspeed ebcs - but now i'm gonna switch to the hybrid/dual setup: get the mbc for the quick/hard spool and, then use the ebcs to control the boost in individual gears etc. tbh i do think the ebcs is a little bit slower than just an mbc, and my tuner is legit

 

This is definitely opinion and not fact. I used to be one of those people that thought that until I did more research and talked with several high profile tuners on here about it. There's a reason people like Buschur, STM, and many others only run MBCs and it's not just because they're easier to tune.

I don't want to get into a big debate here but I don't think this statement is entirely accurate. From what I've seen and heard, the main advantage to an MBC is slightly faster spool, especially between gears. One of the reasons I'm considering moving to an MBC is because I know that I'm losing spool when shifting gears at the track. You can see it in my logs. Especially in 4th, you can see my WG opening before I actually hit full boost.

OP- The bottom line is do some more research and talk to a few more people before you decide which one you want to go with.

 

I've also kicked around the idea of trying a hybrid set up. Not a lot of people are doing it but I've heard good things about it so far.

 

One thing to keep in mind is that holding more boost does not always equate to more power. It all depends on how much boost you want to run. The reason boost tapers on a stock turbo is because it loses efficiency in the higher RPMs. If you're trying to max out a stock turbo, holding more boost up top will equate to only blowing more hot air and over spinning your turbo, and you'll likely be hurting performance.

However, if you're someone who only wants to run 22psi then ECU boost does give you the advantage of being able to maintain that 22psi throughout the entire rev range where an MBC will still want to taper a little.