Need some help with FMIC install.

[smokey240sx]

I'm running a smic right now and installing a fmic. I'm not to sure what to do with the vacuum line from the acutator to the factory smic cold pipe. Another problem I found is that my the cold pip is 3" and I would need a reducer coupler for the TB. Can someone verify what size is need. 3 to 2.75 or 3 to 2.5?

[9240sx]

2.75

[otterman]

Is there not a nipple on the FMIC piping for the vacuum line? My piping came with a nipple on the cold pipe for the line.

[smokey240sx]

2.75

thanks

My stock had one large one and a tiny one.

[otterman]

Large one is for your idle... tube... not sure what the technical name is lol. But its the pipe coming out right beside the throttle body. It controls your idle.

The small one is for the vacuum tube from the wastegate.

[smokey240sx]

can i T that vaccum line into something else?

[9240sx]

So i take it your FMIC piping does not have a port for the wastegate right??If thats the case then you can T off from the BOV vaccum line and run that to your wastegate..Your turbo will spool alittle faster too,that way..

[smokey240sx]

So i take it your FMIC piping does not have a port for the wastegate right??If thats the case then you can T off from the BOV vaccum line and run that to your wastegate..Your turbo will spool alittle faster too,that way..

[smokey240sx]

just wanna say thanx.

[9240sx]

Nice So hows she's run now?

[smokey240sx]

actually not so good. The car shakes like crazy at 65mph and it now boosting up to 10psi. I have no clue what i did. Its to dark to check out.

[9240sx]

Were was the boost at before??Its very normal when adding a large front mount like yours for the boost to rise..When i went front mount my boost went from flat out 7psi to a 10psi spike and 8 to 9psi hold..So no big deal there..But the shaking sounds like a boost leak..Check all your couplers and clamps..