MBC installation question ????????

[odormat000]

So I put a FMIC on my car and my j-pipe does not have a nipple on it where the old line connected to.

a friend of mine installed his MBC line that went to the j-pipe, to the bov-intake manifold line. he just tapped into that instead.

Could this actually work? even if it doesn't see boost when the throttle body is closed???

Also I want to remove my old boost control solenoid and i was told i could just unplug it and take it out completely if i have the MBC

is this true?

-thanks

 

[stefanOst]

IIRC it is not recommended to tap into the BOV line for anything, as it can throw off the proper operation of the BOV. Get a nipple installed on to your intercooler piping near the compressor outlet, like you used to have on your j-pipe.

 

[matthewdesigns]

I ran tee'd off my bov line for a couple of years, so it can be done, but a dedicated line to the boost controller or wastegate will provide the quickest, most direct response. I now have a dedicated boost-only source from my LICP...it makes troubleshooting any vac line problems a little easier if nothing else. It's an easy job...pull your p-pipe/licp/whatever you have out of the car, drill a hole and jbweld a brass nipple into it, let it set overnight, and pop it back in the car with your new vac lines. Make sure you get all the little shavings out before you reinstall it

Do not unplug your factory bcs electricals, just cut the vac lines off and reroute them to your new controller. Unplugging the bcs will usually cause you to throw a CEL.

 

[odormat000]

Do not unplug your factory bcs electricals, just cut the vac lines off and reroute them to your new controller. Unplugging the bcs will usually cause you to throw a CEL.

someone once told me to take a hose and connect it to each side like a loop. would that work?

 

[odormat000]

does anyone know if this will work?

 

[spectr019]

No i do not know if it will work. Routing your boost controller lines does NOT need to be complex or tee-d off. Connect one line to the wastegate actuator, and the other to the compressor housing (that's where the boost PRESSURE originates, find me a better source than that for the controller to read from). You're BOV should have its own dedicated hose for reasons stated above. If whatever turbo you're using doesn't have a compressor nipple, then go to a shop and have a nipple welded onto your new j-pipe.

Ben

 

[TuRBoTaLooN]

It's an easy job...pull your p-pipe/licp/whatever you have out of the car, drill a hole and jbweld a brass nipple into it, let it set overnight, and pop it back in the car with your new vac lines. Make sure you get all the little shavings out before you reinstall it

I would not recommend this as there is a good chance you can have an air bubble in the JB Weld to leak air, and on top of that if you run a decent amount of boost, chances are it will go right through and cause a leak or even pop off the fitting.

The correct way to do this is still very simple. Go to Autozone or any local auto parts store and get a 1/8" NPT brass vac line fitting. Go to Home Depot/Loews and get a 1/8"NPT tap. Most IC pipes are pretty thin, so any standard drill will be able to tap the pipe. Take a drill bit smaller than your fitting and drill a pilot hole. Then take your tap and put it in your drill. Slowly start drilling. You'll get to a point where the tap gets stuck. Take off the drill and get an open ended wrench that fits around the tap. Slowly, by hand, keep turning the tap until you get all the way through. Now get some teflon tape, put it around your vac line fitting, and screw it in your ic pipe. No fuss, no muss.

 

[odormat000]

I would not recommend this as there is a good chance you can have an air bubble in the JB Weld to leak air, and on top of that if you run a decent amount of boost, chances are it will go right through and cause a leak or even pop off the fitting.

The correct way to do this is still very simple. Go to Autozone or any local auto parts store and get a 1/8" NPT brass vac line fitting. Go to Home Depot/Loews and get a 1/8"NPT tap. Most IC pipes are pretty thin, so any standard drill will be able to tap the pipe. Take a drill bit smaller than your fitting and drill a pilot hole. Then take your tap and put it in your drill. Slowly start drilling. You'll get to a point where the tap gets stuck. Take off the drill and get an open ended wrench that fits around the tap. Slowly, by hand, keep turning the tap until you get all the way through. Now get some teflon tape, put it around your vac line fitting, and screw it in your ic pipe. No fuss, no muss.

'nuff said. well put.

+3 1/2 gold stars

 

[matthewdesigns]

The correct way to do this is still very simple. Go to Autozone or any local auto parts store and get a 1/8" NPT brass vac line fitting. Go to Home Depot/Loews and get a 1/8"NPT tap. Most IC pipes are pretty thin, so any standard drill will be able to tap the pipe. Take a drill bit smaller than your fitting and drill a pilot hole. Then take your tap and put it in your drill. Slowly start drilling. You'll get to a point where the tap gets stuck. Take off the drill and get an open ended wrench that fits around the tap. Slowly, by hand, keep turning the tap until you get all the way through. Now get some teflon tape, put it around your vac line fitting, and screw it in your ic pipe. No fuss, no muss.

Umm, that's what I did, but I added the extra layer of JB Weld as security. I've run up to 30psi through it with no problems. I assumed that the OP would figure out the specifics once he saw that the nipple was threaded, etc.

OP, yes, you can loop your hose back to the bcs, or you can just leave them cut and open.