MMP1k logs -- Boost leak?

[veer90]

Just read this whole thread, yeah screw it flash to stock and see what it does. Just keep an eye on boost and let off immediately if it becomes dangerous - use common sense here.

I used Twisted before for my regular MMPs... there was a reason I switched.

 

[langsbr]

Here is a log from 1k's. Your issues seem to be similar. I am curious to see if this is turbo related.

https://datazap.me/u/blaster3500/log-1533320770?log=0&data=3-21

Who's issues are similar? Is there someone other than morffius having issues?

 

[langsbr]

Just read this whole thread, yeah screw it flash to stock and see what it does. Just keep an eye on boost and let off immediately if it becomes dangerous - use common sense here.

I used Twisted before for my regular MMPs... there was a reason I switched.

Just curious - what would that tell him? He's already did a log with the vacuum signal direct to the wastegates. That takes any and all boost control out of the picture.

I'm just trying to make sure everything stays on track for his troubleshooting. He's been told to do the same thing in a different way numerous times.

To recap:

Everything connected normally, spool is slow and requires much more WGDC than normal up to about 4500 rpms and then comes inline.

Physically and visually tested vacuum on wastegates - closing properly at 5.5inhg

Replaced boost solenoids?

Confirmed all vacuum lines are good/replaced burnt one

bypassed solenoids and ran vacuum direct to wastegates - max of 8psi on a WOT log

Confirmed all outlet connections secure

To be done:

Pressure test system


@morffius, you've confirmed you don't have any other issues like poor sealing BOV or chargepipe correct? If your chargepipe has stock DV ports, they are plugged correct? O-ring in BOV? O-ring in TB to chargepipe?

All clamps from Chargepipe to intercooler are tight?


It still makes no sense how you made 17+ psi on 39% WGDC, yet only 8psi with direct vacuum, unless your vacuum pump is wacked out or something, or you have a major vacuum leak.

 

[Blaster3500]

Who's issues are similar? Is there someone other than morffius having issues?

A local to me. Separate car from morffius but looks to be the same or similar issue.

 

[langsbr]

@Blaster3500, are you on full e85? Even if on a mix, isn't timing fairly low?

 

[Blaster3500]

@langsbr Yes the car was on full e85. It was a base map for the 1ks so that may be why. After wastegate adjustments, a new outlet, smoke and pressure tests, the issue was still there. It is very possible that the issue was not the turbos. I would love to see some logs/testing from MMP that they did prior to releasing them.

 

[langsbr]

@langsbr Yes the car was on full e85. It was a base map for the 1ks so that may be why. After wastegate adjustments, a new outlet, smoke and pressure tests, the issue was still there. It is very possible that the issue was not the turbos. I would love to see some logs/testing from MMP that they did prior to releasing them.

Are you saying that the issue morffius is having is the same as the one in the log you posted? They don't look anywhere in the same ballpark to me.

 

[Blaster3500]

Are you saying that the issue morffius is having is the same as the one in the log you posted? They don't look anywhere in the same ballpark to me.

Looking at the log in the original post they seem to be having similar issues? Both seem to have very slow spool (18-20psi at 4500). The log I posted was obviously targeting higher boost but had issues running mid 20's at a very high WGDC.

 

[morffius]

Finally got around to doing the pressure test. I spent Saturday taking off the outlets and peeled off my gold tape to inspect the junction of the front turbo to the main outlet line. No breaks. Looked perfect. I replaced the rest of the silicone parts and put new clamps on the hot side.

Next I bought the parts to make the pressure test caps. It was hard to find a pressure gauge.

After pressuring to 5 psi.... there’s a leak.

It sounds like it is at the throttle body / CP junction and also maybe around the other end of the CP as it dives down to the IC.

I took off the CP and the o-ring is still there. (I checked that before) I’m going to order another Oring. If I grab the pipe and give it some pressure up, I can change the leak. So it’s definitely something with the seal.

If I can’t fix the leak with the o-ring, I’ll buy a new charge pipe.

Thank you all for your help!

Just curious - what would that tell him? He's already did a log with the vacuum signal direct to the wastegates. That takes any and all boost control out of the picture.

I'm just trying to make sure everything stays on track for his troubleshooting. He's been told to do the same thing in a different way numerous times.

To recap:

Everything connected normally, spool is slow and requires much more WGDC than normal up to about 4500 rpms and then comes inline.

Physically and visually tested vacuum on wastegates - closing properly at 5.5inhg

Replaced boost solenoids?

Confirmed all vacuum lines are good/replaced burnt one

bypassed solenoids and ran vacuum direct to wastegates - max of 8psi on a WOT log

Confirmed all outlet connections secure

To be done:

Pressure test system


@morffius, you've confirmed you don't have any other issues like poor sealing BOV or chargepipe correct? If your chargepipe has stock DV ports, they are plugged correct? O-ring in BOV? O-ring in TB to chargepipe?

All clamps from Chargepipe to intercooler are tight?


It still makes no sense how you made 17+ psi on 39% WGDC, yet only 8psi with direct vacuum, unless your vacuum pump is wacked out or something, or you have a major vacuum leak.

 

[langsbr]

Good find! What charge pipe do you have?

 

[morffius]

Good find! What charge pipe do you have?

I believe it is generic and unbranded. It could be poor manufacture. If the o ring doesn’t solve it I will buy a branded one. I was looking at the ER pipe because it has the mount point which would hold it more secure.