AJPTurbo boost regulator mod with EcoPowerParts charge pipes

[AJP turbo]

Ok, the gate did not open at all. I did not have the right spring in the gate. It came with 2 springs, a 7 and a 13. I must not have read instructions thoroughly. It is set for 20psi. I assumed there was supposed to be 3 springs and they shorted me one. Tomorrow is another day, the ground is wet here anyway, car was having trouble getting traction


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I saw your logs and could see you were spinning...You had tq reductions from traction control shifting into 3rd....Just for the record I don't like MBC and wish you had a TIAL or turbosmart wastegate...It just adds an element and it makes it seems like this is a complicated mod...But I'll work on it with you!...I'm afraid if I open up the throttle at higher boost that you are running and you have the MBC wrong or in your case they loaded it with a 20 psi spring set you will get boost spikes way over what we should.

[f8tlSHO]

Ok, the gate did not open at all. I did not have the right spring in the gate. It came with 2 springs, a 7 and a 13. I must not have read instructions thoroughly. It is set for 20psi. I assumed there was supposed to be 3 springs and they shorted me one. Tomorrow is another day, the ground is wet here anyway, car was having trouble getting traction


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Good luck, do you have quick grips/similar (http://www.emedco.com/irwin-quick-grip-bar-clamps-spreaders-4b8.html?SKU=GG453&gclid=CIeDyu2NvtECFR6ewAods84AIw)

I clamp my gate to the workbench I use, with two clamps, and loosen all screws, then slowly back both grips off, it allows for the gate to relieve pressure without the top flying out/springs going everywere.

I do the same method to put it back together, gradually tighten the grips, then align the holes and bolt it up.

Make sure the diaphragm is clear of pinching and in the correct place as well when you put it back together.

I don't have quick grips, I used my vise to take it apart. Works great


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[f8tlSHO]

Ok, the gate did not open at all. I did not have the right spring in the gate. It came with 2 springs, a 7 and a 13. I must not have read instructions thoroughly. It is set for 20psi. I assumed there was supposed to be 3 springs and they shorted me one. Tomorrow is another day, the ground is wet here anyway, car was having trouble getting traction


Sent from my iPhone using Tapatalk

I saw your logs and could see you were spinning...You had tq reductions from traction control shifting into 3rd....Just for the record I don't like MBC and wish you had a TIAL or turbosmart wastegate...It just adds an element and it makes it seems like this is a complicated mod...But I'll work on it with you!...I'm afraid if I open up the throttle at higher boost that you are running and you have the MBC wrong or in your case they loaded it with a 20 psi spring set you will get boost spikes way over what we should.

The roads are wet, damn traction control. I understand what you are saying. I will correct the spring issue tomorrow. And see where we stand. If it is too much of a pain I will experiment with the springs


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[derfdog15]

Gotcha, no vice here, and I don't want to scratch the finish on the fancy TiAL haha

As for traction control, we hate it, but it does keep ya planted!

[AJP turbo]

Ok, the gate did not open at all. I did not have the right spring in the gate. It came with 2 springs, a 7 and a 13. I must not have read instructions thoroughly. It is set for 20psi. I assumed there was supposed to be 3 springs and they shorted me one. Tomorrow is another day, the ground is wet here anyway, car was having trouble getting traction


Sent from my iPhone using Tapatalk

I saw your logs and could see you were spinning...You had tq reductions from traction control shifting into 3rd....Just for the record I don't like MBC and wish you had a TIAL or turbosmart wastegate...It just adds an element and it makes it seems like this is a complicated mod...But I'll work on it with you!...I'm afraid if I open up the throttle at higher boost that you are running and you have the MBC wrong or in your case they loaded it with a 20 psi spring set you will get boost spikes way over what we should.

The roads are wet, damn traction control. I understand what you are saying. I will correct the spring issue tomorrow. And see where we stand. If it is too much of a pain I will experiment with the springs


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Not a pain for me at all! I just want it to go smoothly for you and don't want you to think it was a waste of time and money and I want it to be consistent and worry free.

[f8tlSHO]

Gotcha, no vice here, and I don't want to scratch the finish on the fancy TiAL haha

As for traction control, we hate it, but it does keep ya planted!

I use an old bubble wrap package in between to keep it nice


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[derfdog15]

AJPTurbo was kind enough to send me his stock dyno run file as well (similar to mine he had his catless SW downpipes installed, and the Airaid CAI installed, but a bonestock tune, and he even had the 2 bar installed - his downpipes and Airaid CAI are now installed on my car)

Look how consistent the stock tune is on our two cars (with weather, humidity, ambient pressure corrected for)

Pretty cool if you ask me!

He was running 93 on his pull, and I ran E20.

[AJP turbo]

Yeah really cool considering different dynos but same model and different cars with same mods....very consistent

[AJP turbo]

Pretty good conversation last night here

[StealBlueSho]

Ok, the gate did not open at all. I did not have the right spring in the gate. It came with 2 springs, a 7 and a 13. I must not have read instructions thoroughly. It is set for 20psi. I assumed there was supposed to be 3 springs and they shorted me one. Tomorrow is another day, the ground is wet here anyway, car was having trouble getting traction


Sent from my iPhone using Tapatalk

I saw your logs and could see you were spinning...You had tq reductions from traction control shifting into 3rd....Just for the record I don't like MBC and wish you had a TIAL or turbosmart wastegate...It just adds an element and it makes it seems like this is a complicated mod...But I'll work on it with you!...I'm afraid if I open up the throttle at higher boost that you are running and you have the MBC wrong or in your case they loaded it with a 20 psi spring set you will get boost spikes way over what we should.

The roads are wet, damn traction control. I understand what you are saying. I will correct the spring issue tomorrow. And see where we stand. If it is too much of a pain I will experiment with the springs


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Just start testing the mbc at its lowest setting.. monitor frp and boost... quarter to half turn until you see impact and monitor/adjust from there....

I dunno if I would ask anyone to tune around it... as thar would be a nightmare...I think Brad is being super duper kind there offering too...

I used it to tweak the final tune that Brad worked out for me... I did send Brad a few logs just for confirmation everything still looked safe....

And it's not a set and forget modification... it's something you need to constantly watch....

I will post logs when I get home with and without the MBC...


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[derfdog15]

I could be wrong, but I have a worry that since you may end up going to a higher or lower barometric pressure F8tlSHO, the MBC could become a bit of a pain, if your desired boost levels change. I guess you would know the scaler, but definitely something I would want to monitor on the X4, OR if you are feeling fancy add a cheap manual boost/vacuum gauge into the line, maybe even add two reference locations (one pre, and one post, MBC, so you can see the effects it has).

I am not a MBC guru, but would it do anything to the reference when pulling vacuum, could be a simpler way to see how much you are changing things.

[StealBlueSho]

As promised... here are two logs with the SAME tune from Brad... one with the MBC and one without...

The MBC delayed the opening of the wastegate and helped keep it from opening middle of the gear... helped me hit that sweet spot I was looking for in between a 15.95psi spring setup and 17.4 spring setup...

If you look at the logs, there are a couple things to note...

1: I DID NOT ASK BRAD TO TUNE FOR THIS, YOU NEED TO BE ABLE TO ADJUST THE MBC ON THE FLY DEPENDING ON ENVIRONMENTAL CONDITIONS

2: Using the MBC IMPACTS SIGNIFICANTLY your fuel rail pressure! Thus you need to monitor it closely!!!
3: Using the MBC lowered my WGDC SIGNIFICANTLY.. at the EXPENSE of fuel pressure
4: I was able to hold more boost since I was not allowing the WG to open until the MBC opened.

Enjoy the logs as always...

[derfdog15]

As promised... here are two logs with the SAME tune from Brad... one with the MBC and one without...

The MBC delayed the opening of the wastegate and helped keep it from opening middle of the gear... helped me hit that sweet spot I was looking for in between a 15.95psi spring setup and 17.4 spring setup...

If you look at the logs, there are a couple things to note...

1: I DID NOT ASK BRAD TO TUNE FOR THIS, YOU NEED TO BE ABLE TO ADJUST THE MBC ON THE FLY DEPENDING ON ENVIRONMENTAL CONDITIONS

2: Using the MBC IMPACTS SIGNIFICANTLY your fuel rail pressure! Thus you need to monitor it closely!!!
3: Using the MBC lowered my WGDC SIGNIFICANTLY.. at the EXPENSE of fuel pressure
4: I was able to hold more boost since I was not allowing the WG to open until the MBC opened.

Enjoy the logs as always...

No attachment?

[f8tlSHO]

I just pulled one of the springs, I now her the whoosh. I am not asking Brad to tune around the mbc. I am going to dial it in as close as I can then have Brad just double check to make sure everything is ok.. I watch my gauges on my sct x4 on a daily basis, I am not worried about tinkering with the mbc. This is an experiment. If it works good then I will stick with it. If not I will move on to the spring method.


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[StealBlueSho]

Good deal, just trying to assist with information I have obtained while doing the same thing. Maybe some of my random posts will help you. Good luck!


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