First tune using Eurodyne Maestro7 - BAT B5 A4 1.8

[B6A4Dave]

Well ladies and gentleman!

It may or may not be known, however I have been tuning Subaru's and Evo's since 2005 and recently had the chance to tune a friend of mines Big Turbo B5 A4..

Built 1.8, Scatt Rods, JE Pistons (9.5:1), Cat 3578 cams (I think), supertech valvetrain, ported AEB Head, Apikol AEB Intake manifold, big FMIC w/ 2.5" piping, ATP Turbo Manifold, Custom 3" DP, Garrett GT3076R BB, Bosch 044 pump, 630cc injectors..

Im missing some things, but y'all get the point.

Regardless, We discovered on Pump gas we run out of fuel at 5500rpm if we try to run higher boost.

But currently, We're tuned at a steady 21psi, full boost comes on about 4400rpm!

Still have some other things to do to the car, going to increase the fueling capacity and injector size to hopefully run on E85.

Moving on, I can honestly say this...I will NOT be using Eurodyne for my BAT build.. The software is horrible, the features are limited, the interface is garbage, the latest update from Eurodyne doesnt allow you to Copy/paste tables so to rescale your load to higher values is now a pain staking cell my cell process which is infuriating.

You can't adjust the Voltage / offset / multiplier on the MAP Sensor so you can't even use a better MAP so you're limited to the stock 2.5bar which limits your boost reading and really fucks with the tune at times.

You cant adjust any of the sensor calibrations with exception to the MAF...which this car isn't using, we're running it Speed Density.

In Retrospect, for anybody wanting to go over the 450whp range, consider investing in a better EMS. Eurodyne will probably work just fine for most peoples 300-350whp builds, but for those who have a more hardcore end goal in mind.. dont waste the $800 on this trash.

Regardless, here's just a little sample of the progress of the tune from the second revision to the last one we finished the other night. And I'll get some pics up of the build and the car!

Ign Timing:


Car / Motor:




Enjoy!
- Dave

[Pr1ce]

Looks good... Wanna fly out here and tune mine? Lol I just got maestro7 and still trying to learn the system.

This build looks awesome though. Can't wait to see the progress...

[B6A4Dave]

Looks good... Wanna fly out here and tune mine? Lol I just got maestro7 and still trying to learn the system.

This build looks awesome though. Can't wait to see the progress...

What's your set-up? Maybe I can help guide you in the right direction.

I've found a lot of limitations to Maestro...Unless it looks different for the B6, on his B5 it was rather limited.

I'd assume because you'd be using an AMB Base file it might look a hair different but.. couldn't imagine a whole lot.

My only thing with the software is that you cant change sensor calibrations, despite the interface being a pain in the ass, the software actually does a pretty good job. But the fact that you cant change the multiplier and the offset to run a 3 or 4 bar MAP sensor...that is some BS.

Or that you cant see the O2 sensor calibration... I wanted to streamline the whole system.. Run the 5v output from the LC-1 to the OE WBO2 Harness that way we can use the other hole for an EGT Sensor, keep the function of the Primary O2 and also use the LC-1 to run the gauge and monitor fuel via the ECU Logging.

Which brings me to another point, Maestro's logger doesn't support additional inputs like almost every other software ive used...no ability to log the data from your external wideband directly to the same log as all your captiured ECU Data...and for some reason, if you see any value richer than 11:1, actual AFR according to the Seperate WB, the LC-1. The Logger cannot read or understand it..

He could have a bum O2 sensor, but both the LC-1 and the OEM WBO2's are Bosch LSU 4.2 sensors...so if you could change the 0v-5v definition/calibration in the Eurodyne, you could essentially only need 1 O2 sensor and then even use the Simulated Narrow band as a Secondary O2 so you dont just have to turn it off..

nit picks I guess... really LIMITED Software for the $800 price tag...I would be furious if I had paid for it and this was what I got..Also be ware that the latest software update completely ruined the interface...enjoy seing "..Unavailable" whenever you try to copy ANYTHING.

[redline380]

Before I get very defensive here, I need to know which year car you were tuning, or more specifcally (since it can be changed) which version of motronic you were tuning.

And remember, Maestro is not tuning in and of itself. It is merely an interface that allows you to change stock parameters. It is not standalone, and doesn't operate like that.

I believe you cannot see values below 11:1 because that is the limitation of the stock 02 sensor, that is if you were attempting to tune an 01, and looking at the ecu, it appears that way,

[redline380]

I mean really, it seems most of your beef is with Mortronic, not Maestro. The whole point of Maestro is being able to tune your stock ECU to whatever you want to run, while saving other functions the ECU controls saving you from piggy backing a standalone to run the engine.

Eurodyne will probably work just fine for most peoples 300-350whp builds, but for those who have a more hardcore end goal in mind.. dont waste the $800 on this trash.

If you are going to build an all out race car, you would want standalone anyways as there is no need to retain the stock ecu. As I stated above, the whole point of Maestro is being able to tune a street car that still has carpet, a back seat, the stock fuel tank, etc.

[B6A4Dave]

Before I get very defensive here, I need to know which year car you were tuning, or more specifcally (since it can be changed) which version of motronic you were tuning.

And remember, Maestro is not tuning in and of itself. It is merely an interface that allows you to change stock parameters. It is not standalone, and doesn't operate like that.

I believe you cannot see values below 11:1 because that is the limitation of the stock 02 sensor, that is if you were attempting to tune an 01, and looking at the ecu, it appears that way,

Still ME7, it's an 01.5

I'm aware that it is simply an interface for the OE ECU, however I assure you that Maestro does not give you access to even half of the tables that the factory has the ability to manipulate.. Also note that I have tuned thousands of stock ECU vehicles with far more effective software than this.

Take a look at what the OEM Evo ECU is capable of....makes the ME7 look like MS2 on a rabbit

The Sensor does absolutely NOT have a limit of 11. That would be the dumbest bullshit I've ever heard, it is a Bosch LSU 4.2 Sensor... 0v = 7.35 AFR - 5V = 22.39 AFR.
However I cant confirm if that is the accurate calibration for the controller, that is the calibration for almost all aftermarket wideband O2 sensors..

I mean really, it seems most of your beef is with Mortronic, not Maestro. The whole point of Maestro is being able to tune your stock ECU to whatever you want to run, while saving other functions the ECU controls saving you from piggy backing a standalone to run the engine.


If you are going to build an all out race car, you would want standalone anyways as there is no need to retain the stock ecu. As I stated above, the whole point of Maestro is being able to tune a street car that still has carpet, a back seat, the stock fuel tank, etc.

..This car has carpet, back seats and the stock fuel tank.

Look at it like this... 2.5Bar maximum.. that means you're limited to 36.25 Psi Absolute.
so, 36.25 - atmos = 21.75 PsiG

Really....why can't you just pop a 3 or 4 bar map sensor in the car and Change the Offset and Multiplier? You can do that with Cobb Accessport which is a piggy back which works on BMW, Subaru, Mitsubishi, Nissan GTR's, etc.

Can do it with EcuFlash for Evo's...also stock Ecu manipulation.

Can do it with Crome/Hondata/etc which is simply an EPROM Chip tossed on a stock ECU..