Cobb AP question - Subaru WRX Forum
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#1 Old 01-14-2008, 11:41 AM
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Cobb AP question

Hey guy, real quick question. What is the difference between a Reflash and Realtime?
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#2 Old 01-14-2008, 12:13 PM
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Do you mean realtime mapswitching? If so when the car is "Reflashed" the ECU's factory software is overwritten with aftermarket software by a third party hardware device (In your case COBB AP). The Realtime map switching refers to the AP's ability to change that software while on the fly. Hopefully that will help, I tried to break it down as much as possible.

Mike
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#3 Old 01-14-2008, 12:41 PM
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so if it set to realtime then you have to leave the AP connected while driving?
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#4 Old 01-14-2008, 03:09 PM
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Reflash is when you change the parameters in the ECU, realtime is what allows you to make changes to the ECU to see what effects it has on the engine before you reflash it.

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#5 Old 01-14-2008, 04:14 PM
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Those are both correct answers. Go to Cobbs website and download the users manual, it breaks it down there also. I have it on my other computer or I would write it down for you.

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#6 Old 01-14-2008, 04:50 PM
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so if i want to change it to lets say stage 1 and leave it on there i would do reflash
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#7 Old 01-14-2008, 05:03 PM
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Yes, that is what you would do. Plug in test connectors, plug in AP, car to on position, select map, load map, car off, unplug AP, unplug connectors, enjoy. That simple and a much better car.

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#8 Old 01-14-2008, 06:38 PM
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Alright so i understand reflash and thats what i have been using,, but the user guide really does not explain the real time mode enough for me. If I press real time instead of reflash what would happen and what would I use it for. Sorry but I cant find anything that really explains it and i never pressed real time because i was always unsure of the use. Thanks
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#9 Old 01-16-2008, 01:12 AM
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Think of it this way:

Realtime - temporary
Reflash AKA basemap - permanent

They both have the same parameters.
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#10 Old 01-20-2008, 08:12 AM
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Quote:
Originally Posted by wrXmon
Think of it this way:

Realtime - temporary
Reflash AKA basemap - permanent

They both have the same parameters.
That's not entirely true, the base map has parameters that the real time map doesn't have. Basically if you reflash with a stg. 1 map, and then load in a real time stg. 2 map the car will revert to the stg. 1 map for certain parameters. It is also a good idea to load in a lower octane map than what you use as a safety precaution.

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#11 Old 01-20-2008, 08:40 AM
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Quote:
Originally Posted by psinuse View Post
That's not entirely true, the base map has parameters that the real time map doesn't have. Basically if you reflash with a stg. 1 map, and then load in a real time stg. 2 map the car will revert to the stg. 1 map for certain parameters. It is also a good idea to load in a lower octane map than what you use as a safety precaution.
Yup.And once the battery is disonnected any realtime or RAM data is dumped.The flashed base map (ROM) will still be in effect,but the realtime map will have to be reloaded.Some Protuners do their tuning in the realtime time.Also generally you want the basemap to be pretty close to the realtime map.If you run stage2,don't run the stage1 base and stage 2 realtime.Or vise versa.Map switching comes in handy when you run a stage 2 93 octane base and have a realtime stage 2 93 octane,stage 2 economy and stage 2 100 octane race map.

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#12 Old 01-20-2008, 11:11 AM
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So what is the difference between running a stage 2 reflash compared to running a stage 1 reflash and a stage 2 realtime?
Im really sorry, but im not grabbing this concept
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#13 Old 01-20-2008, 12:55 PM
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If i want stage power, what exactly should i do?
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#14 Old 01-20-2008, 02:30 PM
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Quote:
Originally Posted by vtwrx227 View Post
So what is the difference between running a stage 2 reflash compared to running a stage 1 reflash and a stage 2 realtime?
Im really sorry, but im not grabbing this concept
Read psinuse's last post.Stage 2 is requires a TBE.Why would you not reflash the base to stage 2?You can't just go back and forth between stages.The difference between stage 1 and stage 2 is higher boost and new wastegate duty cycle parameters due to the free flowing exhaust.Per Cobb's map notes:



Here is a list of tables (parameters) that may change when you select a Realtime
calibration with your AccessPORT:
Boost Targets
Turbo Dynamics (i.e.: turbo "gain")
Wastegate Duty Cycles
Fuel Injector Parameters (size and latency)
Intake Calibration (MAF Sensor)
Primary Fuel
Primary Ignition
Rev Limits
Defeated CELs and Closed Loop tables are not changed with Realtime map switching.
This is why we highly recommend you running the Stage Base calibration that best
matches your car's modification. Running the Stock Mode Base calibration with a
Stage2 Realtime calibration over it will get you some of the improvements but no
where NEAR what you would get if you were to run the proper Stage Base calibration.
Again, you should have no reason why you will want to run the Stock Base calibration,
unless of course you're the type that doesn't like extracting the full potential of
your vehicle.

Additional Notes:

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#15 Old 01-20-2008, 03:13 PM
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so basically if i want stage 2 then i should reflash stage 2 and leave realtime alone
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