DID U INSTALL THE LINES backwards??

the side nipple/hole( one that is horizontal ) is the input and should go to the wastegate

the one at the bottom (vertical one) is your output and should be teed off into your bov.

 

would there be any issues leaving the boost solenoid hooked up? I ran mine off the wastegate and turbo and left it tee'ed into the solenoid

 

I just hooked mine up like using the first method (to the BOV line). It works perfect, couldn't be happier. It holds constant boost, no taper, no spikes. I set it to 18psi until i get tuned in about a week.
wow this is an old thread... but it helped me alot in figuring out the connections. thanks everyone for the input

 

One correction. The thing pictured (under the intake box) isn't the Turbo Wastegate actuator, it's the boost control solenoid.

 

Bump.

Currently running a spike of 28 psi and tapers to a sad 20 psi at 7500 rpm. The hallman is tapped into the bov line like most suggest. Stock actuator and stock IX turbo.

I was fine with the taper (wasn't much) when I was running 22 psi with the hallman. Now it tapers a lot since I increased the boost. Some people say that the IX turbo just can't flow more than ~20 psi at redline, but there are people here that are running the GM 3port BCS and tapering to ~25 psi.

I'm curious to know if the little bleed hole on the MBC is big enough to let out all the air quick enough to start closing the flapper so it doesn't taper as much.

I will mess around this weekend by first moving the MBC so I can make the lines even shorter. Then possibly try using the turbo outlet pipe nipple instead of the tee into the BOV line.

 

^did you fix this yet?

which spring do you have on the MBC? you might have to switch it with the heavy spring that comes with the Hallman MBC package.

 

I shortened the line a LOT and it helped with the taper. I have always been running the heavy spring since day one. I can still hit 28, or even higher if I want to. Its the taper that bothers me. I'll switch the MBC's boost source to the turbo outlet nipple in a few days and I'll report back.

Even though I am going to use the EGR solenoid in the end.

 

all righty... i just finished the installing the mbc and whipping around with the evo.

- i tapped the t fitting on the bov line method
- before the install, i was boosting 10-11 psi because the pills were missing between the wastegate and turbo compressor vacuum lines.
- with the LIGHT spring cranked all the way with boost, i was hitting 16-17 psi - the evo feels definately faster!
- when i get the HEAVY spring from back order, i will install it and crank it back down to wastegate boost because im still on an unknown tune from the previous owner.
- just want to say thanks to this how to. its effing awesome! i love the diagrams! they really help me do the install!

PS: 2 caps came with the hallman pro rx mbc, i lost the other one, is there any way i could get an extra cap?

 

Thanks for this old helpful thread, Gonna get a boost controller soon, and this will def help me out...

 

good writeup.. Just ordered mine and will follow this to install it and ditch the hondata boost controller.

Right now, I am running a Hondata boost controller with a wg spring of only 7 psi.. For some weird reason, when I turn on the bc, it spikes 15+ psi @ 6krpms... With the bc off, it does around 9-10 psi @ 6k rpms

I got everything hooked up properly, any ideas?

 

Anybody needs one, i got a brand new black one for $120 shipped. PM me..

 

Hey, I want to switch my MBC from the turbo compressor/wga to the bov/wga vacuum line. I have a boost guage tapped into this vacuum line so can I still hook up the MBC on this line? Is it bad to have 2 tee's on the same vacuum line? Obviously I will have the boost guage tapped in between the intake manifold and mbc, not between mbc and wga. Thanks

 

Would it be ok to put the boost gauge in this location? Sorry I searched and could not find the answer.

 

Anyone? i don't think it should matter, I just want to make sure.

 

bump?