Just installed my 50 trim!!

sureshot971 · May 10, 2007

Alright so I just installed my new garett 50 trim.

I really like it and after getting over a few problems (intercooler pipes blowing off) I still see a few more problems.

At idle my oil light on my dash starts to light up. Never happened before. It has plenty of oil in and the pressure is fine. Any suggestions?

Also I am running an external wastegate. I have a greddy ebc.

I have a vacuum line running from the valve unit to the top of the wastegate. and then the other line from the valve unit goes to the compressor on the turbo.

I have the ebc set for 16 pounds. It boosts up to 25!!! not good for my set-up!

is my wastegate hooked up worng? (it has just a 7 pound spring in it right now)

BrokenTsi · May 10, 2007

how low is your idle?

sureshot971 · May 11, 2007

the idle seems to drop now about 100 rpms lower then before, it use to be at about 700 and now its at 600.

BrokenTsi · May 11, 2007

My oil light comes on too if the idle drops below 500 for too long.

DiamondStarAwd · May 11, 2007

I think you hooked your external gate up wrong. What spring is in there? Even if the ebc is also hooked up wrong, the gate should limit the boost to the pre-set psi by the spring.

edit: just saw the 7 lb spring. Try and bypass the ebc and just hook the vacuum lines up to the external gate and see if it holds. If it doesn't then switch the lines on the external gate and if that still does not work, then I believe you have a bad spring/wastegate.

sureshot971 · May 11, 2007

So just hook a line up from the wastegate to the compressor? should i go off the top or the bottom?

Cs4g63 · May 11, 2007

Diagram of how to hook up the vacuum lines.
http://www.tialmedia.com/documents/w3_tial_wginstall.pdf

daren_p · May 11, 2007

Cs4g63 said:
Diagram of how to hook up the vacuum lines.
http://www.tialmedia.com/documents/w3_tial_wginstall.pdf

Thats an old diagram, they no longer recommend that. The standard MBC hookup would be from the pressure source (comp cover) to the MBC & then to the lower nipple on the WG. Some EBC's need to be hooked up in different configurations depending on the solinoid they use & their action. For proper EBC hookup you should refer to the instructions that came with your controller.

If you hook the pressure line directly from the comp cover to the lower WG nipple you will see around 7 psi. If you don't connect any line to your WG I have been told you should see double you spring pressure, 14 psi in your case (though have never verified this)

sureshot971 · May 11, 2007

alright the instruction manual for my ebc says to connect the compressor to the top of the wastegate, and then it has another vacuum line coming off the top but does not show nor tell where it goes?

Ajax · May 11, 2007

Here's a simple diagram to make it easy.Keep in mind you can run the vacuum off the turbo on the nc side for cleanliness

fwdeclipse · May 12, 2007

I always thought you were supposed to vent the top hole and just use the side hole. That is what I do and it works great.

Ajax · May 12, 2007

top hole you can use if you have trouble keeping the wastegate closed. The scematic I found of the internet so it could be wrong! I am also in the process of hooking up my EBC and came across it hoping it was right.

Rice Over Wheat · May 13, 2007

If you're wastegate is 7 psi and your ebc is set at 16 lbs, together that adds up to 23...pretty close to where you say the boost peaks. Does the ebc control boost in addition to the wastegate like a mbc? If so, dial that shit down.

Burnett03 · May 13, 2007

Rice Over Wheat said:
If you're wastegate is 7 psi and your ebc is set at 16 lbs, together that adds up to 23..D

Umm no that's not how things work... The wastegate spring is at 7psi.. Without any sort of boost control the wastegate will open at 7psi. The ebc is used to raise this. So if it's set at 16psi it will hold off the boost signal to the wastegate and send it to the gate at 16psi, thus opening the gate at 16psi instead of 7psi. You do not add them together.

sureshot971 · May 13, 2007

i thought the gate started to open at 7 psi and the reason for getting a bigger spring would be to stop the gate from opening which would allow you to spool faster.

sureshot971 · May 13, 2007

Another thing is wrong now... I am pretty sure I hooked all the radiator lines back up and everything but I filled it with coolant to the top and then put like a cup into the overflow...

Now I just checked the coolant and the overflow tank was full to the top and leaking out and there wasnt any in the upper radiator hose.

Any suggestions, thanks for the help guys!

sureshot971 · May 13, 2007

Any ideas guys? just got done driving it again and the overflow tank was all the way full, it had popped off the cap and was splashing all ofver everything.

Any ideas why it is emptying all my coolant out of the radiator lines and such?

Rice Over Wheat · May 14, 2007

Burnett03 said:
Umm no that's not how things work... The wastegate spring is at 7psi.. Without any sort of boost control the wastegate will open at 7psi. The ebc is used to raise this. So if it's set at 16psi it will hold off the boost signal to the wastegate and send it to the gate at 16psi, thus opening the gate at 16psi instead of 7psi. You do not add them together.

That's what I was asking about as I haven't used an ebc before and I was wondering if it operated off the same principle as a mbc which just adds more pressure over the wastegate.

eldiabloz13 · May 14, 2007

it sounds like something bigger then the ebc. If you have the time disconnect the ebc and go from there. Then when you found the problem, reconnect it.

Ajax · May 14, 2007

Anybody been able to validate the scematic about how to hook up a EBC?

tkelly27 · May 14, 2007

http://www.apexi-usa.com/pdf/productDocumentation/200.pdf

Page 44 of the PDF file.

If you don't have an apex'i unit, find us the PDF file for your EBC.

That scematic may work, it may not, depends on how the thing works to control boost

Run a line straight from your compressor outlet to your wastegate if none of that works. You should see about 7psi. If so, you've done something wrong with your EBC. If not, you've done something wrong with your wastegate.

25psi spike w/out tuning for it + old HG = time for a compression check

. Also check your thermostat.

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Just installed my 50 trim!!

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