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Old 07-31-2017, 01:16 PM   #51
Imprezaspeed07
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Originally Posted by mrsaturn7085 View Post
If you are on a hybrid system, you need to tune the electronic maps. Your professional is giving you a sub-optimal solution that will likely work (safely), but has plenty of room for improvement. My guess is that he wants to do an 'e-tune' adjustment based on your log. This is fine... but wastegate tuning takes time. One pull is going to just give you a rough base or verification that it's safe.

It's too bad he locked the map or you could do it yourself.


So after talking a bit more he stated he will need to do the tune in person so I'll just get a road tune from him when he is back in town. He said the pull with just the mbc is better than with the hybrid system so I'll leave it like that for now.

I have just turned down my mbc to the lowest boost and will not do any more logs or go wot.

As far as Corr performance I had a stage 2 tune from them and I cracked a ringland. The guy who built my Engine said it was most likely due to the tune. I have also heard other Subaru people having issues with their tunes as well so I'm going to stay away from them.
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Old 07-31-2017, 01:48 PM   #52
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i was away over the weekend but it looks like were still not tuned. I think you need a more indepth tune, not just a wastegate duty update. The reason your seeing higher AFR's at lower boost levels, is one, you OL fuel table is calling for that (doubt it) or your half assed tuner only did the VE table in the areas you were hitting at wot on the old wastegate. To properly do this, you need roller or for me, road time. Its a good time now on your MBC since your slowly increasing boost. Save those logs, maybe you can get some useable VE changes from them.

tuning your own map from scratch isnt hard. You can find info from opensource tunes, its going to look differnet from AP but the info's the same, just applied differently. Speed Density tuning is a little more advance than just plugging in a MAF scale. Do you still run the MAF? Id start there, then maybe work your way into speed density
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Old 07-31-2017, 01:52 PM   #53
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How long would it take to do the ve tables? Also wouldn't ve be messed up because of the new uppipe and ewg? Would running a maf map fix issues caused by ve?
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Old 07-31-2017, 01:58 PM   #54
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if you have a known good MAF map it may help as long as your set to the MAF tuned boost level. MAF maps are 2D, were speed density is 3D. MAF measures airFLOW, and assuming its scaled properly it isnt as senitive to pressure vs rpm changes. On speed density you need to tell the computer the airflow amount via VE, at just about every rpm and boost level. Theres corners of the MAP you wont see, like 20psi at 800 rpm but theres a very large area in between that needs manually adjusted, and the only way to do it accurately is to see it.
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Old 07-31-2017, 02:01 PM   #55
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Default Tune with an ewg

I see also could it be an issue that I am using the stock location map sensor?

Also can you edit per each gear on a my07? Or is there one map for everything
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Old 07-31-2017, 02:12 PM   #56
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heres an example of MAF table vs VE table. MAF's are nice because they measure airflow all in house. It tells the ECU voltage and the ECU converts the volts to airflow based on the Scale entered. SD denisty uses a lot of math and variables but it still runs off a "scale" its just a bigger one. The pic below shows my unused maf scale and my e85 VE table (romraider) The area inside the red is basically all manually enter and interpolated from lots and lots of logging at all different boost levels. Quickest way to do it is set you entire OL fueling table to one AFR. I set mine to 12 cuz e85, and lean is mean. Then once you hit your target or close enough then you can redo your OL table to target what you want and it does the rest. My numbers read a little low since im using made up latency values and scaler but I corrected for that with VE. nobody list tested scalers for 950's runnin 58psi base pressure

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Old 07-31-2017, 02:15 PM   #57
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your stock location map is likely what tripped the CEL, it ran out of range. Probably spiked over 24psi or something. Stock location is fine, but its a 2.5bar sensor andnly reads to about 25psi, set to warn around 23/24. Im using a OMNI 3bar in stock location. You dont want to use more than you need or you loose resolution at idle and cruise which can effect driving


for fuel its one table for all gears, but it doesnt affect fueling much between gears. you will have LOAD changes that effect ignition timing but thats covered in the ignition table since its Load based. The wastegate tables will have per gear adjustments. I tuned my wastegate in 3rd, then 4th is liek 5% less or something and 5th is even less to reach targets

Last edited by no694terry; 07-31-2017 at 02:20 PM.
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Old 12-16-2017, 03:13 PM   #58
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your stock location map is likely what tripped the CEL, it ran out of range. Probably spiked over 24psi or something. Stock location is fine, but its a 2.5bar sensor andnly reads to about 25psi, set to warn around 23/24. Im using a OMNI 3bar in stock location. You dont want to use more than you need or you loose resolution at idle and cruise which can effect driving


for fuel its one table for all gears, but it doesnt affect fueling much between gears. you will have LOAD changes that effect ignition timing but thats covered in the ignition table since its Load based. The wastegate tables will have per gear adjustments. I tuned my wastegate in 3rd, then 4th is liek 5% less or something and 5th is even less to reach targets
So I dropped off my car to get the ebcs connected and then tuned for the ewg and they never hooked up the ebcs before the tune. The tuner said he had a really hard time tuning the boost but never thought to check to make sure the ebcs was connected (I asked him to check before he tuned it) He stated that the car should've been hooked up before he got it. ( The mechanic messed up)

He said he doesn't need to have the ebcs connected before it's tuned. Is this true? Seems like it would be best to just have it connected.

Last edited by Imprezaspeed07; 12-23-2017 at 08:34 AM.
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Old 12-23-2017, 08:34 AM   #59
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Bump please!
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Old 12-23-2017, 09:02 AM   #60
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Bump please!
You seem to not wanna get your fingers dirty so take it back to mechanic to plug the vacuum lines in and then get it retuned. It needs to be hooked up to tune, no way around it. If he's just tuning with mbc then it's only tuned for one thing. Once ebcs is hooked up you'll see different pressures all over the place. You don't want tuned for 17psi at 50% throttle if the ebcs is going to knock that down to 13 psi at same spot.
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Old 12-26-2017, 04:37 PM   #61
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You seem to not wanna get your fingers dirty so take it back to mechanic to plug the vacuum lines in and then get it retuned. It needs to be hooked up to tune, no way around it. If he's just tuning with mbc then it's only tuned for one thing. Once ebcs is hooked up you'll see different pressures all over the place. You don't want tuned for 17psi at 50% throttle if the ebcs is going to knock that down to 13 psi at same spot.
So there is no way to tune without it connected? And I forgot to connect it last time. Does anyone know where I can find a diagram on how to hook up hybrid boost control?
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Old 12-26-2017, 05:26 PM   #62
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It can be tuned fine with on a mbc or even just wastegate spring pressure but if you plug in the ebcs later you may not have ideal part throttle results with a return. The whole benefit to the hybrid or ebcs is stable part throttle boost.

Personally I don't care if I hit 25psi at 50% throttle on a mbc but that's not for everyone
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Old 12-26-2017, 06:15 PM   #63
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So there is no way to tune without it connected? And I forgot to connect it last time. Does anyone know where I can find a diagram on how to hook up hybrid boost control?
Dude.....really....stop making multiple threads with your same basic issues.....screws up peeps trying to help you out......


Hopefully a mod will merge your threads so we ALL know most of the story....

Last edited by Charlie-III; 12-27-2017 at 08:26 AM. Reason: Clean up.
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Old 12-26-2017, 07:04 PM   #64
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So there is no way to tune without it connected? And I forgot to connect it last time. Does anyone know where I can find a diagram on how to hook up hybrid boost control?
google search hybrid boost control and you'll end up right back here at a sticky - 2nd to the last page is the suggested routing. I found I needed to change my tune and ditch the 3rd line (from solenoid to intake), which is one of the reasons to run hybrid boost.

Double check the thread, but, I think you'll want to update the WGDC to 100% in some ares also.
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Old 12-27-2017, 07:44 AM   #65
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google search hybrid boost control and you'll end up right back here at a sticky - 2nd to the last page is the suggested routing. I found I needed to change my tune and ditch the 3rd line (from solenoid to intake), which is one of the reasons to run hybrid boost.

Double check the thread, but, I think you'll want to update the WGDC to 100% in some ares also.
whats usually not clearly noted is that the hybrid setup works better without a vent hole in the mbc
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Old 12-27-2017, 10:01 AM   #66
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Dude.....really....stop making multiple threads with your same basic issues.....screws up peeps trying to help you out......


Hopefully a mod will merge your threads so we ALL know most of the story....
Not sure what other thread you are talking about...
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Old 12-27-2017, 10:02 AM   #67
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whats usually not clearly noted is that the hybrid setup works better without a vent hole in the mbc
And great thanks for the info. So will I need to be retuned after I connect my ebcs?
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Old 12-27-2017, 11:01 AM   #68
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whats usually not clearly noted is that the hybrid setup works better without a vent hole in the mbc
I have the grimspeed and there s no hole to cap..... That I cloud find. It does bleed air though.... Obviously lol.
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Old 12-27-2017, 11:16 AM   #69
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Not sure what other thread you are talking about...
https://forums.nasioc.com/forums/sho....php?t=2861831

There is also someone else with 3 or so threads that sounds very similar....
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Old 01-02-2018, 05:59 PM   #70
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https://forums.nasioc.com/forums/sho....php?t=2861831

There is also someone else with 3 or so threads that sounds very similar....
This thread is specifically about the ewg tuning. The other thread is about the CEL.
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Old 01-02-2018, 06:01 PM   #71
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I have the grimspeed and there s no hole to cap..... That I cloud find. It does bleed air though.... Obviously lol.
Hole is right above the two little screw holes
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Old 01-28-2018, 07:05 PM   #72
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So I got the hybrid boost control hooked up and tuned with the ewg. It ran great with the tuner except the mbc wasn't doing it's job. It was at the lowest setting and still allowing 20 psi. We double checked to make sure the lines were connected right and they were.

He went and did the tune with the ebcs and it ran well. Im driving today and I had a boost spike of 20 psi in second gear. And bad boost oscillation in 4th.

Could this be because of a bad grimmspeed ebcs? Can I swap out to a different ebcs without any issues? And can I also just switch to just mbc and dial in the boost that way as well?

What else could be causing this? I changed to the hybrid boost control, I added an ewg to rule out the boost control options. Could it be a bad turbo?
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Old 01-28-2018, 07:13 PM   #73
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It shouldnt really spike in second gear, not without really spiking in 3rd. Oscillation is usually from poorly tuned Turbo Dynamics. The mbc set to lowest will still allow boost through to the wastegate, that's the whole point of it being a fail safe. If it's over boosting you may have a inproperally set actuator or line issues
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Old 01-29-2018, 02:21 PM   #74
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Hole is right above the two little screw holes
Really? And you plug it? What's that do?
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Old 01-29-2018, 03:41 PM   #75
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Really? And you plug it? What's that do?
Since the bleed hole is on the waste gate line side, it will bleed off the signal from the ebcs. Obviously it's a small hole so the ebcs will win, but it does bleed off some signal which may or may not cause low boost issues
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