BP turbo build/advice

solidus

Couple things. Make sure you have your vacuum lines clear of the manifold and securely so. Second after much suspicion I found that the springs in the Tial wastegates read a bit off consistently. At first I thought it was my boost controller buat after checking around I talked with a major shop in the area and found that they would pressure test the springs before install and the same inconsistent readings were found with the springs. I finally went with the the next step lower than recommended. The boost controller can only regulate boost from that point up and no lower. But above all else make sure the vacuum lines stay clear of anything that might burn a hole in them. I got owned by a 1/4 inch hole in a vacuum line to the passenger wastegate.

hc_416

I will do that, i'm getting the vacuum gauge to test vacuum and set up the BOV that way. After that I will check he waste gate springs next Thanks for the info that is really helpful.

hc_416

2 updates. First the vacuum gauge didn't come today, so I will have to wait till next week to get the reading. Second is i'm hearing the waste gates open but they sound like they are fluttering and not releasing pressure when they should. the boost just keeps going up.... any idea what it its?

hc_416

oH and Girls, Girls, Girls!! bonus points for who knows that song!!

hc_416

Hey guys got the vacuum measurement, it came in at 19.5 Hg, What are guys thought's? I also turned off the BC and found that i'm not even getting the waste gates to do jack. The boost just goes up till i hit redline and shift, maybe they are stuck? Well this weekend I will take them apart and take a look at and see what springs they put in, maybe they went way to strong.

solidus

Be very careful if you spike you're looking at a new motor. Maybe pull the wastegates to make sure your diaphragms are not pinched. And it may seem like alot of work but having been through what I've been through I'd pull all the vacuum lines and reinstall them.

solidus

Here's the diagram of my setup.

Attached Images

img1493737975275.jpg (738.4 KB, 28 views)

Jayhovah

How much boost are you seeing?
Also, when you tuned the BC off, did you leave the solinoid plumbed in the wastegate lines? Try completely removing the BC from the loop so you can be certain your wastegates are as isolated as they can be.

__________________
2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

solidus

Yeah, if you do what Jayhova said, run a line from charge pipe to the tops of the wastegates and leave the bottom open to atmosphere. Also if you have a 3 port solenoid make sure it's plumbed correctly. My diagram is for the Greddy Profec OLED EBC. When I used port 1 it was wrong and allowed runaway boost. It would also be nice to see what you were peaking at.

jwick

That's how mine is rain too. Except I don't remember exactly which port is which on the EBC solenoid.

__________________
'10 G37T 6MT Graphite/Graphite - BP - G37T Build

hc_416

I actually did rerun all the line, they had it all messed up.

i have see about 21-24 psi... When I turned off my Profec the boost just went up and never blew off until I let off the gas and the BOV took over.

I am going to try that this weekend, I wanted to do it earlier but many things came up. I have the three port and the drawings look like the way i hooked it up. I have the control unit hooked up to the big vacuum line from the manifold to the fire wall. I want to just check to make sure I put the line correct on the waste gate. I also don't see were i have a hot side line hooked up to the wg. I will have more info over the weekend! To bad no one live close they could have some beer and steaks to help me get it right!!

Jayhovah

I know this goes without saying, but it really should be said because of the danger... BE CAREFUL! 20+ PSI you are in very dangerous territory if you aren't built/tuned for it.

__________________
2013 Gun Metallic Sport - Gamma V3 Twin Turbogized
DIY Gamma V3 TT Install * Jayhovah's Gamma V3 TT Install Pic'Z and Vid'Z * DIY: Washer Reservoir for the Boosted

jwick

I'd also probably get a compression test if you think you really saw boost over 20psi.

__________________
'10 G37T 6MT Graphite/Graphite - BP - G37T Build

solidus

I hate to scare you but my motor was turned into hot glitter at 23.7psi. If yours didn't blow there's a very good chance there's some crooked parts inside. Not definite but from my personal experience I'd be wearing depends till I got compression checked. The wastegates have upper and lower ports. The upper is either on top where it says Tial or directly on the side of the top hat. The lower is the other. (Not the one marked H2O). The upper is connected to the charge pipe via Twitter connector. The lower comes from the port as I sent the diagram into a T. Try to keep the length from the T equal. I sincerely hope that you didn't bend a rod or tear up some rings. But on the bright side it's an excellent excuse for a built lower. I'd drain the oil to check for glitter and if it's there purge the exapump. ( Don't ask how I know.) If there's no glitter check compression. Also I have a Greddy and it's pure Voodoo. Set it up at the lowest boost setting and work up. Here's where mine was at 9PSI

Lo boost settings
SET= 24%
WARNING =10.5
LIMITER=5%
START=7.5
GAIN= GO SLOW AFTER ALL OTHER SETTINGS.

That should keep you safe but that was with 5lb springs and maybe lower the set boost to 20% and set the warning to 9.5psi . That's a start once you get the readings you creep up slowly. When you find exactly where you want to be you can play with gain but that requires a copilot and a long trip to Mexico in and out of boost.

solidus

BTW this is a simple wave off and budget approval if the better half can be convinced that it was a common spark plug issue. This has been tested and it works.