mbc hooked up correctly? i think not

[Chipper308]

i have a dual stage turboxs mbc with the solenoid switch on cockpit(yes the switch works and the solenoid activates) and on or off it stays at a steady 12psi on the gauge(stock pressure with my 3' turboback in presume" i have an smic and t25...please dont chirp to me about not turning boost up on stock fuel system and turbo and etc etc...im not...im just installing it for something to do. anyways i have the bottom nipple hooked up the the compressor housing(no tee's) that the wga was originally hooked into and the side nipple running into the wastegate. and i cant help but feeling im missing a piece to the puzzle, do i need tee the line that runs to the compressor housing into an intake line? because really all i have right now the compressor housing > mbc > wastegate.

ive searched and read but i cant seem to grasp this simple concept! slow it down for me guys? thanks!

 

[miguelmcv]

You just need a hose from the compressor to the mbc, and from mbc to the wastegate.

A pic will tell more then you can explain

 

[Chipper308]

cant get a good photo to save my life, just tried, going to need to take the cold air off tomorrow for a photo op. but basically if all i need are 2 lines coming from the mbc
1. to the compressor housing
2. to the wastegate

and no other vacuum lines involved? no tees involved? why would i be sitting at 12psi no matter what then? hm...

i have it installed exactly as this gent does here. (this is not my mbc but a photo i found on tuners)

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so...could i have my vac hoses backwards by any chance? if they wer backwards would it cause me to just run stock boost?

 

[CountryDSM]

You don't even need to use the intake nipple, cap that off. You have the wastegate line (attach this line to MBC on wastegate nipple) (Other nipple on MBC will be attached to a VAC source Ex. - I have mine tapped into my IC piping). Just check the instructions as to which one is for the wastegate and other and it is that simple.


Wastegate {-------=={M}{B}{C}==----------} Vac source

 

[NHerron]

http://turboxs.com/shop/attachment.php?id_attachment=1

Pretty simple... its illustrated

 

[Chipper308]

just swapped the hoses around, apparantly the turboxs are backwards than most mbc's, or possibly just the dual stage ones, thanks for your replies guys!!! whats a safe max psi i can run on the t25? turboback 3' exhaust and injen/ K&N intake are really my only mods, other misc things like boost gauge suspension and 3g lifters(see profile) but u get the picture

http://turboxs.com/shop/attachment.php?id_attachment=1

Pretty simple... its illustrated

haha yeah i ended up downloading the pdf manual for the turboxs, i bought this used so i didnt have instructions(should have thought of that one! ) haha

 

[MJBean420]

Rewire your fuel pump and you should be ok to about 15-16psi.

 

[ZenkaiRacerDsM]

Do you have a BOV? If its stock it will just leak, hell its probably leaking at stock boost.

 

[Chipper308]

Aftrmrkt Bov...turboxs and it holds pressure great

 

[JusMX141]

please dont chirp to me about not turning boost up on stock fuel system and turbo and etc etc...im not...

whats a safe max psi i can run on the t25?

12psi.

 

[Chipper308]

12psi.

well i ask because i cant get it below 15psi, i have no boost leaks, car runs great, gas milage is above average, but wot its 15psi, never fails. is that okay? or do i need to investigate some things?