[BunkerJ]

Originally Posted by fate_f30

When I’m going wot for my logs should I be punching it to the floor or easing it to 100%?

Punch it. But yeah, if it was in the 50s, you should have been lower.

[rjd_F30]

Originally Posted by fate_f30

A smoke test would reveal this?

Yes.

[fate_f30]

Originally Posted by rjdnyy224

Yes.

Swung by the garage that did my install. He wants me to send him the logs so he can take a look. Most likely a smoke test will be scheduled.

Ran 5 new logs on the way home Stage 2 Test 2 Tune:

http://www.bootmod3.net/log?id=5bbf8c46d10b434f3ca85d41

http://www.bootmod3.net/log?id=5bbf8c48d10b434f3ca85d43

http://www.bootmod3.net/log?id=5bbf8c47d10b434f3ca85d42

http://www.bootmod3.net/log?id=5bbf8c44d10b434f3ca85d40

http://www.bootmod3.net/log?id=5bbf8c48d10b434f3ca85d43

[rjd_F30]

Originally Posted by fate_f30

Swung by the garage that did my install. He wants me to send him the logs so he can take a look. Most likely a smoke test will be scheduled.

Ran 5 new logs on the way home Stage 2 Test 2 Tune:

http://www.bootmod3.net/log?id=5bbf8c46d10b434f3ca85d41

http://www.bootmod3.net/log?id=5bbf8c48d10b434f3ca85d43

http://www.bootmod3.net/log?id=5bbf8c47d10b434f3ca85d42

http://www.bootmod3.net/log?id=5bbf8c44d10b434f3ca85d40

http://www.bootmod3.net/log?id=5bbf8c48d10b434f3ca85d43

It looks like you didn't log the target boost in those pulls, which is an important parameter in your case. We can assume it's 22.85 or thereabouts, but it's good to have it logged. You can change what is and isn't logged by clicking on the settings button in the top right of the datalogs page. It must've been turned off mistakenly, nbd

That being said though, those logs do look a bit better, looking just at boost deviation without the actual boost target being shown. Before your peak boost deviation was about 6psi consistently, now it's down to about 5psi consistently. 5psi below target is still too large and still indicative of an issue, but at least it's better. Perhaps PTF maximized the amount of boost you're able to generate with whatever mechanical issue you've got with their test maps.

[fate_f30]

Originally Posted by rjdnyy224

It looks like you didn't log the target boost in those pulls, which is an important parameter in your case. We can assume it's 22.85 or thereabouts, but it's good to have it logged. You can change what is and isn't logged by clicking on the settings button in the top right of the datalogs page. It must've been turned off mistakenly, nbd

That being said though, those logs do look a bit better, looking just at boost deviation without the actual boost target being shown. Before your peak boost deviation was about 6psi consistently, now it's down to about 5psi consistently. 5psi below target is still too large and still indicative of an issue, but at least it's better. Perhaps PTF maximized the amount of boost you're able to generate with whatever mechanical issue you've got with their test maps.

I'll check the settings and go do a few more pulls.

[fate_f30]

Originally Posted by rjdnyy224

It looks like you didn't log the target boost in those pulls, which is an important parameter in your case. We can assume it's 22.85 or thereabouts, but it's good to have it logged. You can change what is and isn't logged by clicking on the settings button in the top right of the datalogs page. It must've been turned off mistakenly, nbd

That being said though, those logs do look a bit better, looking just at boost deviation without the actual boost target being shown. Before your peak boost deviation was about 6psi consistently, now it's down to about 5psi consistently. 5psi below target is still too large and still indicative of an issue, but at least it's better. Perhaps PTF maximized the amount of boost you're able to generate with whatever mechanical issue you've got with their test maps.

In the setting menu do I want my slider to the left or to the right? Red showing would be turned on correct?

I may not be able to grab new logs this evening as the rain has moved in. If we get a small window where it lets up I'll try to sneak a few runs in. If not I'll have to wait until tomorrow.

[rjd_F30]

Originally Posted by fate_f30

In the setting menu do I want my slider to the left or to the right? Red showing would be turned on correct?

I may not be able to grab new logs this evening as the rain has moved in. If we get a small window where it lets up I'll try to sneak a few runs in. If not I'll have to wait until tomorrow.

Yah red indicates that it's on.

Don't worry if you can't get them tonight. It's no pressing matter, as your car's not in danger or anything, just being annoying lol

[fate_f30]

Originally Posted by rjdnyy224

Yah red indicates that it's on.

Don't worry if you can't get them tonight. It's no pressing matter, as your car's not in danger or anything, just being annoying lol

I log for the cause. Check out target! Good lord I think I'm pushing too much boost!

http://www.bootmod3.net/log?id=5bbfb5f4d10b434f3ca85db6


http://www.bootmod3.net/log?id=5bbfb5f4d10b434f3ca85db5 - I think this one looks better but the boost maybe too high?

[rjd_F30]

Originally Posted by fate_f30

I log for the cause. Check out target! Good lord I think I'm pushing too much boost!

http://www.bootmod3.net/log?id=5bbfb5f4d10b434f3ca85db6


http://www.bootmod3.net/log?id=5bbfb5f4d10b434f3ca85db5 - I think this one looks better but the boost maybe too high?

I log for the cause, lol love it.

The boost discrepancy looks about the same as the last logs aka still not making enough, but at least now we can see the target.

And yah 36psi!? They really put it on kill with these test maps...


lol, it's measuring absolute pressure rather than relative. I've made the exact same mistake before . In other words, it's combining ambient pressure with boost pressure to give you that number. If you subtract ambient pressure from those numbers, you'll see the actual boost pressure/target/MAP psi etc. If the car actually made 36psi (if the turbo could do it which it can't) it would've died and thrown a rod into the stratosphere while it was at it. In the same settings that you adjust what is logged and what isn't you can change from absolute to relative pressure. Ya must've switched it on accident

[fate_f30]

Originally Posted by rjdnyy224

I log for the cause, lol love it.

The boost discrepancy looks about the same as the last logs aka still not making enough, but at least now we can see the target.

And yah 36psi!? They really put it on kill with the test maps...


lol, it's measuring absolute pressure rather than relative lol. I've made the exact same mistake before . In other words, it's combining ambient pressure with boost pressure to give you that number. If you subtract ambient pressure from those numbers, you'll see the actual boost pressure/target/MAP psi etc. In the same settings that you adjust what is logged and what isn't you can change from absolute to relative. Ya must've switched it on accident

Should I send these logs off to PTF? I'm kinda at a roads end here. Completely confused beyond my mind can handle.

[rjd_F30]

Originally Posted by fate_f30

Should I send these logs off to PTF? I'm kinda at a roads end here. Completely confused beyond my mind can handle.

I don't think they could do anything with them, it's out of their hands and it's very likely that the issue is being caused by a mechanical issue with your car, likely a boost leak. The only way to fix it at this point is to get a smoke test, find the leak, and fix it.

[fate_f30]

Originally Posted by rjdnyy224

I don't think they could do anything with them, it's out of their hands and it's very likely that the issue is being caused by a mechanical issue with your car, likely a boost leak. The only way to fix it at this point is to get a smoke test, find the leak, and fix it.

This was the settings on my datalog. It was set to relative...

[rjd_F30]

Originally Posted by fate_f30

This was the settings on my datalog. It was set to relative...

It must've recorded in absolute then for some reason, that's weird. If you do the math, subtracting the ambient pressure from the target, you'll get 22.49, which is exactly right. If the car made 32psi of boost it wouldn't have made it home. Also, I don't think the stock turbo couldn't generate that amount of boost anyway. Try going to the about page, and hit reset settings. After that, go back into log settings and make sure it's on relative and try again.

This little anecdote aside, we're still at the same place: you've probably got a boost leak and need a smoke test done.

[fate_f30]

Originally Posted by rjdnyy224

It must've recorded in absolute then for some reason, that's weird. If you do the math, subtracting the ambient pressure from the target, you'll get 22.49, which is exactly right. If the car made 32psi of boost it wouldn't have made it home. Also, I don't think the stock turbo couldn't generate that amount of boost anyway. Try going to the about page, and hit reset settings. After that, go back into log settings and make sure it's on relative and try again.

This little anecdote aside, we're still at the same place: you've probably got a boost leak and need a smoke test done.

Reply from PTF" Can you please do default on the logs, I see you changed it completely. I see boost still drops a lot. I tried to add wgdc but it may be hardware related this time."

Speaks the statement that you've been saying all along. I won't be able to get a smoke test until next week. Hopefully I'll get some answers then. I'll keep you posted.

[rjd_F30]

Originally Posted by fate_f30

Reply from PTF" Can you please do default on the logs, I see you changed it completely. I see boost still drops a lot. I tried to add wgdc but it may be hardware related this time."

Speaks the statement that you've been saying all along. I won't be able to get a smoke test until next week. Hopefully I'll get some answers then. I'll keep you posted.

Sounds good.

[fate_f30]

Originally Posted by rjdnyy224

Sounds good.

[rjd_F30]

Originally Posted by fate_f30

It's frustrating, but it'll get worked out

[fate_f30]

Originally Posted by rjdnyy224

It's frustrating, but it'll get worked out

Hope so!

[Noelified]

Originally Posted by fate_f30

Hope so!

It's easy for me to say, but don't sweat it. Like you said early...car is running strong. You just have this little glitch of a boost leak somewhere. You'll get it figured out. I know it's frustrating and will be on your mind until it's resolved, but at least you don't have a blown turbo or tranny that will take her out of commission and cost thousands.

[fate_f30]

Originally Posted by Noelified

It's easy for me to say, but don't sweat it. Like you said early...car is running strong. You just have this little glitch of a boost leak somewhere. You'll get it figured out. I know it's frustrating and will be on your mind until it's resolved, but at least you don't have a blown turbo or tranny that will take her out of commission and cost thousands.

I appreciate the support. Everyone has been great and informative. I feel bad for hijacking this thread but I hope we can all learn from it. Smoke test coming next week. I’ll keep everyone posted.

[fate_f30]

Originally Posted by BunkerJ

Tuning of the N20/N26 is the same, which is why they share the same maps.

So, for your logs, something is definitely up. You are making much less boost than you should and your log isn't smooth. In hotter weather, it might be more "jagged" in terms of the graph, but your IAT is relatively low. To clarify, do you have an FMIC? You did shoot up about 8 degrees or so, but at least for me, I only go up when I'm in the 60s/70s. Nevertheless, something is likely mechanically wrong and it's just a matter of smoke testing and inspection to find it. You can keep working with PTF to see if it's something on their end, as every car is in fact different and sometimes people need tweaks. I've taken two screenshots comparing your log to one of mine that is similar. You'll notice that they look fairly similar, but I do shift much earlier in this one. The key thing to watch here is how jagged they are. In something like a JB4 or other tune that polls much slower, that might be normal, but in a flash tune like BM3, the polling rate is much higher so these deviations and errors are more apparent. My WGDC will register lower by about 7% on average than yours due to a bigger turbo and not having to work as hard, but that's it.

Bunker: Can you post the link where you took this screen shot of my data log you used in this example? My mechanic would like to see it.

On another note. I scheduled a smoke test on Wednesday and I got a reply back from PTF "Could be the diverter valve starting to fail, but it keeps boost pretty OK at 5000RPM. I don't think it's a boost leak, if it should it's very small."

Strange because the DV valve is brand new. Talking with a few other people they said the diaphragm could be dried out or not seated correctly. We'll look closely at that during the smoke test.

I'll keep everyone posted. The plot thickens....

[rjd_F30]

Originally Posted by fate_f30

Bunker: Can you post the link where you took this screen shot of my data log you used in this example? My mechanic would like to see it.

On another note. I scheduled a smoke test on Wednesday and I got a reply back from PTF "Could be the diverter valve starting to fail, but it keeps boost pretty OK at 5000RPM. I don't think it's a boost leak, if it should it's very small."

Strange because the DV valve is brand new. Talking with a few other people they said the diaphragm could be dried out or not seated correctly. We'll look closely at that during the smoke test.

I'll keep everyone posted. The plot thickens....

Interesting. I'm assuming when PTF says they don't think it's a boost leak they mean it's a bad DV, which is a roundabout boost leak anyway. Maybe you got a dud from GFB or it's not installed just right. I'm really curious to see what your smoke test turns up!