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Discussion Starter · #1 ·
Damn guys I think i pushed it too hard today, and I mean hard.My DAM dropped to 0.812 today. Im just gonna go easy for for a few, learn my lesson and Hope it goes back to 1.000. Any advice or experience with this?
 

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That's a global timing pull. It's more than a single incident.

Is the car modified?

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No, that means you have a persistent problem. You should be checking for what causes it. Vacuum/boost leaks, plug issues, improper equipment for your convenience stage 2 tune.

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Does the car meet the modification requirements for Cobb S2+? You're not running a catless downpipe, are you?

Assuming your car satisfies the map notes, you should contact Cobb about the issue; you're paying not only for their device and map, but their support of the product they are putting out.
 

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Discussion Starter · #7 ·
I did and they said that drop in the DAM is Typical when goin that hard. And it should fix itself within 30 to 50 miles. If not reset the ECU. If it returns then its a issue. Im talkin sustained 140+mph hard. Right to the brink. 2017 WRX
 

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Hope you were on a track.....
 

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Rexbeast39 said:
I did and they said that drop in the DAM is Typical when goin that hard. And it should fix itself within 30 to 50 miles. If not reset the ECU. If it returns then its a issue. Im talkin sustained 140+mph hard. Right to the brink. 2017 WRX
140MPH on a base map is your issue...
 

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Discussion Starter · #11 ·
Does the car meet the modification requirements for Cobb S2+? You're not running a catless downpipe, are you?

Assuming your car satisfies the map notes, you should contact Cobb about the issue; you're paying not only for their device and map, but their support of the product they are putting out.
Catted DP/Cobb Bigg SF
 

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Was on Stage 2+ 91 Octane. Not base map
Those are generic maps, if you are on a track you need to have the car tune specifically for the exact setup.

If you have a catless down pipe, or an intake not Cobb supported that kind of run can detonate your engine right now. Even wailing on your car if everything is functional and correct it shouldn't pull global timing.

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Discussion Starter · #13 ·
Was on Stage 2+ 91 Octane. Not base map
Those are generic maps, if you are on a track you need to have the car tune specifically for the exact setup.

If you have a catless down pipe, or an intake not Cobb supported that kind of run can detonate your engine right now. Even wailing on your car if everything is functional and correct it shouldn't pull global timing.

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Thats the thing. My setup was: Catted J-pipe, Borla Catback, Cobb Big SF. Got 93 Octane In the tank. Flashed at Stage 2+ 91 Octane. I think i might have just ran it to hot? Do you think I did irreversible damage?
 

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Rexbeast39 said:
Was on Stage 2+ 91 Octane. Not base map
Unless the car was custom-calibrated for the setup you have, it is a base map. If you're using a map from Cobb that anyone can download from their site, it's a "base map".

Your S2+ WRX can't hit 140MPH on a drag strip. Your S2+ WRX can't hit 140MPH at Watkins Glen (you've mentioned you live in Rochester, NY).

You need to calibrate the car for the conditions you're going to be driving. When you get above what the ECU has been calibrated for, you will run into a "guessing game". Stay below 140MPH in the future; everyone on public roadways will thank you for it.
 

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Yeah it's pulled that timing to run smooth. You are in race car territory, and if you don't take it to a performance shop to do a fine tune for your car then it's just time before you explode it running like that.

To pull dam you have a consistent knock. At high rpm and load that knock can instantly demolish your engine, at low speed and load consistent knock will drastically shorten the life of your engine.

Either way you need to check anything dealing with airflow, fuel, and ignition.

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Reading:
RomRaider • View topic - Subaru's knock control strategy explained

In that article, IAM = DAM (OpenECU / Cobb call it a different parameter, but it's the same thing)

Basically, your car pulled timing globally because it detected enough detonation from the active knock control strategy.

I'm not familiar enough with the FA motor tuning (merchgod got hired by Cobb, and the ECU hasn't been released on the OpenECU community), but exhaust gas back pressure has been an issue with previous WRX motors in the past. When paired with an intake, it made things worse. The 2015+ WRX could suffer this same issue. EGBP reading:
Exhaust Gas Backpressure testing - IWG vs. EWG - COBB Tuning Surgeline on 2010 WRX
 

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Discussion Starter · #19 ·
Reading:
RomRaider • View topic - Subaru's knock control strategy explained

In that article, IAM = DAM (OpenECU / Cobb call it a different parameter, but it's the same thing)

Basically, your car pulled timing globally because it detected enough detonation from the active knock control strategy.

I'm not familiar enough with the FA motor tuning (merchgod got hired by Cobb, and the ECU hasn't been released on OpenECU), but exhaust gas back pressure has been an issue with previous WRX motors in the past. When paired with an intake, it made things worse. The 2015+ WRX could suffer this same issue.
Must have had heavy Exhaust back pressure at high speeds? It was poppin. U think I should just go easy on it for 50 miles and it should reset
 

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I know it's not the direction of the thread, and if I don't say it someone else will, but 140MPH on any public road could've quickly ended your life, or multiple others lives. Keep the high speeds to the track, and enjoy your ride.
 
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