Ef4 installed....no boost???
 

I recently installed a map ef4 into my evo 8. Now I am not getting any boost, I may get 1-4 pounds and here a slight release from the bov and that's it. I haven't hammered on it at all because the car is not tuned for this turbo yet but I can just tell that something is wrong. The dowel pin that clocks the turbo compressor to the hot side was missing but I marked it with a sharpie on top and got it lined up damn near perfect. . Could it be that the wga is too tight? Or maybe the mbc needs to be adjusted?
I did a boost leak test and fixed all leaking issues, under throttle I can almost hear what sounds like a boost leak or a slight whine.... any thoughts or tips would be much appreciated ...

Sounds like wga not tight enough. I would be more conserned about that missing pin rather then how much boost i can make at this time. If your only making 1-4 lbs I would say that the wga isnt tight enough as i said. I would go back and make sure its properly adjusted before i go any further.

I installed the compressor side first, I bolted the oil return to the bottom of the turbo then both coolant lines then the remote oil line feed from the oil filter housing.
Then I installed the hot side and clocked it properly as close as I could get it since the alignment pin is broken off.
I then installed the turbo smart wga and buttoned everything up.
Once I started the car I heard the map o2 dump leaking under the car, then I shut it off and adjusted the wga so that the dump wasn't leaking anymore and then took it for a test drive and here I am. No boost.
I am considering removing the turbo again and having a machinist friend drill out the old alignment pin and put a new one in to insure proper alignment of the turbo.
The wga is tight enough as to where I can barely pull it up enough to get it onto the wga flapper arm...

I just verified that the wga does in fact move freely by hooking my air compressor up to it..

ok how many lbs of air did it it take for it to open? I know when I did my wga it was a pita to get the correct preload on the thing. I had to use rope to pull down on it to get it to work. If you don't have at least your wg pressure opening up the wga then it needs to be tighter. If it is anything less then what the wga spring is, then your going to have to readjust it. Either that or that pin that is broke off is causing the turbo to leak. Or if all that is fixed and your sure none of that is the problem then maybe its because your car isn't tuned. Like you said though it maybe worth it to repull the turbo and get your buddy to put that pin in that way you can assure everything is sealed correctly.

I'm not exactly sure how many pounds of air it took I just hooked up a vacuum line to the wga then pumped air into it with my air compressor until it opened..

I'm almost 99% sure the turbo is clocked correctly, I can't see the pin not being in creating a exhaust leak, the v band clamp is still tight.
Think the mbc could be the problem and needs to be reset?

OK if your sure everything is correct check to see if your mbc is hooked up backwards swap the lines see if it changes anything. Been there done that before lol

I'll double check the mbc.
I took it for a short drive with the wga run directly to the J pipe and Ithe struggled to get to 4 psi by 5k rpm. After that I took it home and parked it. {thumbdwn}
Dunno what to do........
I tried to adjust the wga again and I got nowhere. ... turn the threaded rod clockwise....counter clockwise..... I dunno

You want to go clockwise to make the rod shorter that will give you more preload. I would make it so the eye of the hole is about half way between the end of the hole itself and the middle of the hole so basically half way between the lower half of the end of the rod. That should be enough preload. But yes definitely check the mbc to make sure you didn't do a me and hook it up backwards lol.

I'm going to remove the turbo after work tomorrow and have my machinist friend drill out and replace the broken dowel pin with a new one so that I know the turbo is clocked properly.
The only other thing I changed was re installing my 3 inch cat back.

Yeah that would be a good idea, I don't see anything you have done really causing a problem. Again doesn't make any since and the only thing that would cause a problem like that would be wga or the mbc being hooked up backwards. But like you said get that fixed make sure its 100% correct and start over from there.

I'm thinking that the turbo is improperly clocked enough to create an issue. I will report back once I have gotten it repaired and re installed...

Well for your sake I hope that's all it is too. It sucks when you have to chase phantom things around to get results that you want.

Well I installed a new pin in order to line up the turbo and the hot side correctly, everything is spot on and I still have no boost...... by 4000 rpm I have like 3 pounds and when I let off the gas I have a tiny bit of blow off and alot of flutter.
So disappointed. ..

When I initially started it up the 02 dump didn't leak... I let the car sit for an hour and then went to move it into a parking spot and now it's leaking at idle.

Mind blown-!!!!!!!!!:crap:

if its leaking then like I mentioned before wga isn't tight enough. It is opening up and your not building any boost. I know it kinda sucks but it has to be done properly to make sure it stays closed. What spring do you have in your wga? I think I asked but I don't recall your answer

I believe its the 25 psi spring that comes in the turbo smart wga...
I just think it's weird that it didn't leak at first and then it started to leak...
I guess I can try to make the wga tighter but it's gonna be hard to get it on the flapper arm, is there such a thing as having it too tight?
Also when does this turbo reach full spool?

yeah it is a pain in the ass for sure. But once it is on there you will know, full boost usually kicks in about 4800 rpms depending on the way the motor is built. Although I cant say that I have saw one spool less on one setup to the other

Well I tried to get the wga on even tighter I had it as to where I couldn't get it on by hand any more so I decided to actuate it with my air compressor and it expanded and snapped right onto the flapper arm and seated itself. ..
It was one of those once in a life time things that I couldn't do again if I wanted to.
I took it for a rip down the street and low and behold after 43XX rpms I saw over 17 lbs of boost and better....
I guess it's all figured out now.. I'm going to take it for a ride again in a little while and see how it does...

See I told you it was too loose. What I would is take off your mbc and just go wg pressure and make sure it doesn't open before 25 psi. If it does then guess what has to get tighter. It is all trial and error it seems with cars anymore.

Sounds good to me.. I'll run it off the wga tomorrow and see where I'm at.. I don't wanna romp on it too much until it gets tuned but I'll see what I get...

Just remember one thing, that turbo is pretty large for what it is. I wouldn't be beating on it to much even to find out what the wg pressure is on the car being depending on the turbo you had before that turbo will cause lean conditions being the larger amount of air it does flow

Ok got it.. I'll just take it easy on it and not get too far into boost, and I'll keep my eye on the a/f gauge...
I hope to get it tuned this Friday. But if not then the following Friday for sure.

yeah that is a good idea. Trust me the turbo will make the car pull like a freight train so depending on what kinda boost levels your at with it untuned you may not full boost right away. I would let your tuner know for sure that you are having issues with the wga finding the right tightness for it and hopefully he will be able to help you out.