has anyone had problems with this mbc? i hear from people that one side always fails and for $220 its not worth it. what do you guys think.

btw, one of my friends have had one for 2 years now on his 04 viii and no problems with it. any info would be great. thanks

 

It's not worth it, period. You don't need a dual switch in order to change boost. You can't even up the boost unless you change octane, so it makes no sense to pay that much for something like that. If you have to stop and put in race fuel, then it doesn't take long to set your normal $85 MBC to the race setting with a few turns of the knob.

Also, the TXS MBCs are typically awful on the Evo. Your friend may not have NOTICEABLE problems, but most Evo owners never do have a clue that their equipment is garbage. It's not like it makes the car blow up - it just doesn't do a good job of controlling and maintaining boost.

 

hey thanks a lot warr.. appreciate all your help. the main reason i wanted it is so when i am just cruising i can have 1 side of the mbc at like 17 psi and the high boost set around 22 or 23 psi, this way its a little easier on the car.i am not going to get it after you said that though. do you know any d/s mbc's that work good, what about the turbo smart? thanks ahead of time

 

That would be kinda useless. There's no reason to run around at 17psi, plus you'd have to have 2 separate tunes to do that and wouldn't be able to switch boost unless you also loaded the other tune.

It is not easier on the car to try and run 17psi - you're just robbing yourself of 40-50whp and 50-60wtq on a daily basis. Plus, you only boost when you hammer it, and I would imagine you want all your boost whenever you hammer it. I can't see much reason to want to hammer it but only run 17psi sometimes and 22psi other times - it just doesn't make sense.

I do not recommend any dual stage MBCs.

 

thanks for the help again warr.i would have made a stupid mistake and bought one. what do you recommend hallman? forge? which one holds boost the best? thanks for your time.

 

Forge and Hallman have both been on my car and both have performed beautifully. The only difference between the two is that the Forge has little clicks so that you can remember exactly where you set it and how to get it back there in case anything happens or in case you have multiple settings for different octanes. I have 3 different settings and just remember the # of clicks from 0. So, even if I forget where I am, I can always set it to 0, then count up to get back where I need to be. Since they are the same price, the choice is obvious, imo.

 

thanks again for all your help.1 more question. i talked to a lot of people about this and everyone says to install the mbc by going off the nipple on the compressor housing of the turbo and others say t off the bov line. i dont know what to do. which method would hold the boost more consistenly and not taper as much?

 

If one was a lot better than the other, then we'd all do it the same way, but it works both ways.