Okay so i installed my mbc today and did everything right, i followed all of the install guides i've seen. I went out to drive and adjust the mbc to what i wanted around 19-20 psi on 93 oct and got almost to where i want it, but the mbc is making a loud leaking noise and its coming directly out of the mbc, i bought from a guy off of ebay so hopefully it wasn't a faulty one. My buddy has the same one on his talon tsi and said his makes a leaking noise but i can def. hear mine over my exhaust when its idoling, and i have a hks bov with the pipe kit and the blow off it makes now sounds like its spreading the air out and sounds like crap instead of the clean psssh it normally does, i'm guessing that the leaking of the mbc is affecting the bov. So can anyone help cause i'm out of ideas unless its the mbc
Worst MBC there is for the Evo - it should not be used. Any reason you chose to buy this instead of a top MBC? It should not make any noise, and you should not have an HKS BOV on your Evo unless you run speed density with no MAF.
I had no idea that the turbo xs was a bad boost controller for evos but thank you for the input, and for the bov i've never had any issues for it since i've had it on there and i plan to recirculate it
Most people don't notice the symptoms. You definitely are having problems and even recirculated it doesn't work right. Continue at your own peril but remember that you were warned.
So what do you recommend i use for a blow off valve? Should i go with a ams uicp or buschur racing uicp and what should i do for a bov? I'm going to go with a hallman mbc now instead cause this ones a piece. Thanks again for all the help
I have the Turbo XS MBC and mine doesn't make noise. So you should go by a new one never used. By the way Warr will let you know what he thinks. Listen to him he does have some good insites. I have also had my MBC for over a year and it works great.
____________________________
SCOTT
EVO VIII SSL
313AWH 313TRQ
Damn. I was hoping it was the HP model that wasn't set up right and a simple fix (has two mechanisims/extra set up).
The standard one is a bleeder valve style.
Sorry.
Yeah i think i'm gunna get a hallman pro boost controller and how come the standard turbo xs one doesn't work as well? And warr said the recirculation kit for ssqv wouldn't fix everything and i talked to ams today and they said it should take care of everything. Thanks again i appreciate the input
The TurboXS standard boost controller is a bleeder valve. It bleeds off positive boost before it hits the wastegate actuator, basically a controlled boost leak.
Do you have this connected to the turbo outlet pipe or the BOV line?
Bleeder valves also have a history if inconsistant boost.
The bov line thats connected to the intake manifold and then run to the wastegate actuator, do you have any input about the hks bov recirculation or what do you think?
Maybe try the compressor outlet pipe as a possitive boost source insted and see if that improves anything.
As far as the HKS valve (and this is just my opinion/input you asked for);
I wouldn't waste the time or the money trying to make that thing work. Stick with the stock IX/JDM metal valve till you run over 25 lbs. of boost.
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Turbo XS boost controller
