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Prepping for turbo build

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Old 10-24-2014, 01:49 PM
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My fault. I didn't add a quote in reference to mazdaspeeders post.
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Old 10-24-2014, 02:15 PM
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Originally Posted by Jeffbucc
My fault. I didn't add a quote in reference to mazdaspeeders post.
Haha oh well

In other news... Omg I had a HUGE vacuum leak on my EBC.... For some reason I thought leaving one fitting off wouldn't leak... I was listening to the engine run and heard a huge air rushing noise. Sure enough put my finger over the port and the engine started running so much better. Took it for a drive after putting a capped fitting in the port and it drove amazing. Now I seriously can't wait to run VEAL on this bitch!
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Old 10-24-2014, 02:17 PM
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Thats doesnt seem right.
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Old 10-24-2014, 02:40 PM
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Originally Posted by Leafy
Thats doesnt seem right.
What doesn't seem right?
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Old 10-24-2014, 02:43 PM
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that you had to block a port on the boost controller. A normal EBCS should be connecting the manifold to the wastegate when not energized and be venting the wastegate can while blocking the manifold port when energized.
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Old 10-24-2014, 02:45 PM
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Originally Posted by Leafy
that you had to block a port on the boost controller. A normal EBCS should be connecting the manifold to the wastegate when not energized and be venting the wastegate can while blocking the manifold port when energized.
The bottom right is the fitting I'm referring to. My EBC setup only uses the ports that have vacuum lines running to them

Attached Thumbnails Prepping for turbo build-20141024_144138_zpsdpw8zu7s.jpg  
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Old 10-24-2014, 02:51 PM
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And the top one goes to the turbo while the bottom left goes to the manifold right?
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Old 10-24-2014, 02:55 PM
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Originally Posted by Leafy
And the top one goes to the turbo while the bottom left goes to the manifold right?
Each one goes to a different port on my EWG
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Old 10-24-2014, 02:58 PM
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I have it routed like this for the 2port ewg...

Attached Thumbnails Prepping for turbo build-wastegate_control_zpsf45ee94a.png  
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Old 10-24-2014, 03:00 PM
  #590  
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Then your solenoid has a failed internal seal. If you're lucky and you go drive it like you have it now the first time you hit boost and the wastegate cycles it'll blow the cap off rather than hit 30psi.
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Old 10-24-2014, 03:03 PM
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Originally Posted by Leafy
Then your solenoid has a failed internal seal. If you're lucky and you go drive it like you have it now the first time you hit boost and the wastegate cycles it'll blow the cap off rather than hit 30psi.
Wait... So that shouldn't have been leaking? Even with no fitting on it?
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Old 10-24-2014, 03:07 PM
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correct. When you energize the coil in the noid it connects the wastegate port to the port you capped to vent the boost pressure in the gate. But I messed up, you wouldnt hit infinite boost you'ed be stuck at wastegate pressure.
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Old 10-24-2014, 03:09 PM
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Originally Posted by Leafy
correct. When you energize the coil in the noid it connects the wastegate port to the port you capped to vent the boost pressure in the gate. But I messed up, you wouldnt hit infinite boost you'ed be stuck at wastegate pressure.
Hmmm thanks for the heads up I just e-mailed DIYAutotune
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Old 10-24-2014, 04:09 PM
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Yeah so I just noticed that diagram says "leave bottom port disconnected" ..... How did I end up with all these brand new parts that are bad?!?!
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Old 10-24-2014, 04:29 PM
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Wow so I got tired of waiting for an email back so I called them...

Yeah that is supposed to have a vacuum leak there... He told me its doing exactly what its supposed to do. The thing is, it runs like **** with that port opened up and leaking vacuum... So I guess I will just leave the port open and see if the car runs better after I run VEAL
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Old 10-24-2014, 05:27 PM
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Ok so somehow I found this online... Granted its info based around DSM's ...

The EBC looks exactly the same. It says best to route that fitting to pre-turbo pipe (Snorkel) ..... Dont know if this is relevant to this situation or not.

bcsinstall [ECMTuning - wiki]
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Old 10-24-2014, 05:38 PM
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If your noid doesnt seal in vac like that you probably should get a different one. Like the Mac style rather than the IR one. Its kind of surprising that the valve is that common for this use and doesnt seal in vacuum. You might be able to get some improvement in the seal by putting some air tool oil into one of the ports and cycling the noid a few times while blowing through it.
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Old 10-24-2014, 05:55 PM
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Maybe I'll try another one... I hate how loud the obvious vacuum leak is...

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Old 10-24-2014, 06:22 PM
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Is the input line coming from the intake manifold? If so I totally don't understand that logic. There are debates on if the source of boost for the valve should come before or after the intercooler, but I can never see why it would be a good thing to have it after the throttle. Perhaps I don't understand your set-up.
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Old 10-24-2014, 06:27 PM
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https://www.miataturbo.net/showthread.php?t=47532&styleid=22

^Good read on the subject.
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