How To: Greddy Profec B Spec 2 Install

[Wingman21]

Whats the size of the hose that goes to the wastegate?

 

[540James]

it would also help is all of my directions/warranties/booklets, etc werent in japanese

 

[GhostMercury]

does the length of hose and the amount of t's in it affect the boost reading? i have a vibrant vacuum block installed with 3 nipples on it.
-bov
-stock bpv
-AFC

i ran my boost gauge throught he car to the glove box and t'ed it off rite at the AFC so i could know the exact boost the afc was reading

now if i installed a T near the boost gauge to the EBC would it throw off the reading at all?

 

[cougar10agREDUX]

good write up. i'm about to install mine... but you need to update your article. you teed off the wrong side of the FPR vaccum line. you need to tee off the little hose coming off the manifold going to the FPR solenoid so you get a clean signal without the solenoid.

 

[cougar10agREDUX]

Is there a reason why they say to tee off the FPR line and not the intake manifold line? Do you get a more precise reading there? Because I was about to tee it off the manifold line just like the boost gauge install.

they do mean the manifold line, going to the FPR. in our case we have a solenoid so you need to go between the manifold and the solenoid. for people who don't know engines inside and out, it's the easiest one to find and it's guaranteed to see both vacuum and boost. some things require the use of a vacuum chamber, if you tee off one of the lines for them you will only see vaccum.

if it's coming directly off the manifold, it's safe to say it's a clean source. i'm teed into the FPR before the solenoid, and the line for my cruise control

 

[SpeedAdiction20]

Ok, I was wondering why they were saying to T off the FPR line, when I have used the manifold and vac block as a source for everything so far....

but if I am understanding this correctly, the "COM" port goes to the WGA, the "NO" port goes to your vac source(FPR or Mani), and essentially is like sticking the valve unit in the middle of the vac line from the wga to the mani like a MBC normally would go right? and then from there you can just run your wires to the EBC unit...

also I just realized, the only stuff coming from the valve unit that goes into the cabin are the wires, and you run a separate vac source for the EBC's internal boost gauge right? which in my case I would run from my vac block(or T into my boost gauge line from inside the cabin most likely)

also the "NC" port, I don't have the unit infront of me now, but I am assuming that is some type of pressure release port on the valve unit and does not need to be connected to anything right?

does it sound like I have everything worked out?.. hook up the power/ground wires and all that junk and im all set? I was just thrown off by the FPR line, and wondering why they used that, makes more sense now

 

[cougar10agREDUX]

COM, NC, and NO are the types oof ports or relay connections since the solenoid is essentially a relay. COM= common, NC=Normally closed, NO=Normally open.

how you hook it up depends on what setup you have, hook it up how the directions state. theres different way depending on if you have an internal or external WGA and stock boost/WGA solenoids or not.

 

[SpeedAdiction20]

ok, but really what the directions are stating are to hook the COM port to the WGA, the NO port to the vac source and in this case the FPR ( I would rather hook it up to the mani like I have for other things because if I don' that leaves a vac port open that use to run to the WGA), I was just confused on how he had worded it, or how the pics showed where the lines were going, and in this it seems like they said (and didn't mention the NC port from what I saw) so from the posts above it sounds like I uncap it and that is it..

I just want to make sure there is nothing wrong the way I am hooking it up, for the MSP.. the directions are just worded a little funny and I tend to like to know why something is hooked up to something else, or what it does, just makes things easier for me if I know.

 

[jeanspeed]

(inout)i finally found this thread.... this is what i was looking for. for some reason i hook my ebc the wrong way. i have it backwards

 

[SpeedAdiction20]

backwards how?.. if you look at my last post, that is how I set it up. .and it works great

 

[jeanspeed]

i had something wrong