hooking up wastegate?

[Durty]

ok guys, i bought an Ebay wastegate...and the quality is actually really good. but anyway...it has 3 ports on it, 2 on the top, and one under the diaphram....just wondering where i hook up my vacuum lines and everything. one is an atmosphere port right?...and the one under the diaphram gets a boost line right?..but whats the 3rd one for?..

[tonym]

bottom is boost ref.  One up top is boost controller.  the other may be a vent?  not sure

[Durty]

well two of them are 1/8" NPT....and the other one is smaller, like 1/4" size non pipe...centered right in the middle of the top....like its an adjustment or something, but it didnt come with a stud or anything to fit in there

[tonym]

well two of them are 1/8" NPT....and the other one is smaller, like 1/4" size non pipe...centered right in the middle of the top....like its an adjustment or something, but it didnt come with a stud or anything to fit in there

+

 

[flyinhillbilly]

that sounds like mine, i just hooked up a line from the carb hat to the bottom port, and it worked awesome at 10psi. i didn't sweat the ones on the top because i'm not using a boost controller.

[Durty]

leave them open then?...if i run a boost controller will i be able to turn it any lower than the 11psi spring thats in it?

[flyinhillbilly]

leave them open then?...if i run a boost controller will i be able to turn it any lower than the 11psi spring thats in it?

i just left mine open, a manual boost controller will only let you up your boost, i'm sure there are some double throw down electronic ones that can do god only knows what with co2,but i have no experience with anything like that, and i always just want to up the boost anyway. 

[ΜΟΛΩΝ ΛΑΒΕ!]

well two of them are 1/8" NPT....and the other one is smaller, like 1/4" size non pipe...centered right in the middle of the top....like its an adjustment or something, but it didnt come with a stud or anything to fit in there

Actually....they aren't 1/8 NPT. They are 10mm X 1.0   

BUT - a 1/8 NPT tap will make those threads into 1/8 NPT pretty easily (what I did)
otherwise you will only be able to thread each fitting in about 1-1/2 turns

The stud in the center is 6mm X ? - - I just cut a small piece of sponge and stuffed it in each port on the cover (still breaths, keeps mud daubers out!)

a manual boost controller will only let you up your boost,

Correct. Did you get the 50mm? Mine was supposed to be a 12 psi, but it is actually 8 when running on the car (I reference the wastegate to the bonnet, though)

[flyinhillbilly]

i got the 50 from autodynasty on erape, it was supposed to be 10 psi and was dead on, i referenced from the hat too, but was also getting my guage reading from the hat too, it might have been less under the throttle blades, it was still enough to grenade a 12 bolt 

[D347643]

the one on the top might be for adjustment, i have the same gate as you.  the one on the bottom is boost ref, hook that up your intake or the tubes post compressor side.  And, as already stated, the top one is for boost controller.  If it's the 50mm gate im thinking of I have had a lot of good luck with mine

[Durty]

my turbo has a line coming off the compressor housing...can i run that to the wastegate...it runs from there to the internal gate...it should work for my external right?

[ΜΟΛΩΝ ΛΑΒΕ!]

my turbo has a line coming off the compressor housing...can i run that to the wastegate...it runs from there to the internal gate...it should work for my external right?

Yes, that would be fine.
It also has the strongest "signal strength" of any point in your cold side, so your 'gate would open soonest attached there.