Dyno with AA ECU
MBWorld Fanatic!
Joined: Jun 2005
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From: Mia
2005 E 55
He has one of the flashes that was originally tuned on the dyno, my afr's were never that rich.
Out Of Control!!
Joined: Sep 2004
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From: San Diego
2015 S212
I am learning more and more how powerful the tunes can be on these cars. Not exactly to unlock magical HP, but to hurt the potential for the car making hp that it rightly has inside.
Really hard to judge the tune from a dyno. Would need timing graphs etc to really see what is happening Hamann.
Wish it was easier to try different tunes. Would be REALLY cool to pop on a VRP or Kleemann and see if the car instantly perked up.
Keep us posted.
Really hard to judge the tune from a dyno. Would need timing graphs etc to really see what is happening Hamann.
Wish it was easier to try different tunes. Would be REALLY cool to pop on a VRP or Kleemann and see if the car instantly perked up.
Keep us posted.
The dyno just shows part of what we get. One thing to notice is that the VRP tunes are more linear in power delivery and don't die off at 6K like most.
Two things of note. For the OP, look into the datalogger and see if you can compare boost to your curves.I still think you have the ECU dumping fuel at 12+ psi. To the RennTech tune. All looks good to me. The question I would have is how safe a tune is that , considering how lean it looks?
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From: Mia
2005 E 55
AMEN!!
The dyno just shows part of what we get. One thing to notice is that the VRP tunes are more linear in power delivery and don't die off at 6K like most.
Two things of note. For the OP, look into the datalogger and see if you can compare boost to your curves.I still think you have the ECU dumping fuel at 12+ psi. To the RennTech tune. All looks good to me. The question I would have is how safe a tune is that , considering how lean it looks?
The dyno just shows part of what we get. One thing to notice is that the VRP tunes are more linear in power delivery and don't die off at 6K like most.
Two things of note. For the OP, look into the datalogger and see if you can compare boost to your curves.I still think you have the ECU dumping fuel at 12+ psi. To the RennTech tune. All looks good to me. The question I would have is how safe a tune is that , considering how lean it looks?
Out Of Control!!
Joined: Sep 2004
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From: San Diego
2015 S212
No disrespect to anyone, but I have always had issues with RennTech tunes but attributed it to the issues that were going on with Adam and EVOTech and my own tuner (at the time). I guess all is well as long as MBUSA warranties it, right?
I would personally be pretty concerned running that lean, especially at the top end where the power is also dropping. Where is the gas going, then? If that stuff doesn't combust and sticks around, POW!!
To the post that mentioned that AA was not adding any effort, I would personally call my credit card company and pull the plug. There are a zillion excuses that lame tuners will make for why you see the exact issue you have. They will say that the cooling is failing at the top end or that the belt is slipping, or whatever. That is why you MUST datalogg to get the facts. What are the engine mechanics up to when these things happen? Where is the butterfly when the throttle is wide open?What is the boost when you start dumping fuel? The key to these tunes is in the engine management. If you don't get the system, then a tune will go blank because the ECU's "safety" limits will all kick in and negate anything you are trying to do.
Member
Joined: Dec 2007
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From: Northern VA
06 e55 wagon
If they really want to sell products to MB owners, they should come on here and talk this over with us or give it up. Either that tune is not right, or your car is dumping fuel for some other reason at the top end ... either way, they should be willing to work with you on it based on those dyno results.
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E63, SL 550 Sport,C63 Coupe On the Way!!
Why did you chose to use Active in the first place when they specialize in BMW tuning? I dont see any details of AMG offerings from them on their site.
Hope you can work things out with them.
Hope you can work things out with them.
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Banned
Joined: May 2004
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From: Richmond Hill, Ontario
2003 E55 AMG
AA is a very good company and they were actually the ones that were helping me get a tune done for the MBs. Their programmer that was working with them is no longer there and someone else now is doing the programming so I am not sure whether or not the same files are being used.
I think something is wrong with the car but you can't be 100% positive it is the tune.. it could be belt slip or something else causing the ECU to dump fuel. That fuel dump at 5,000RPM is indicative of a belt slip issue from my experience. It can also be torque limiters.. the only way to verify that is to run a OBDII scanner and log Throttle position, RPM and boost. If it falls off to 12psi at 5,000RPM then you know its torque limiters.
Just to rule out all the other possibilities, spend $40 and get yourself a new belt and see if that cures it.. If not, talk to Karl (the owner) and see if they can have another look at the ECU.
I think something is wrong with the car but you can't be 100% positive it is the tune.. it could be belt slip or something else causing the ECU to dump fuel. That fuel dump at 5,000RPM is indicative of a belt slip issue from my experience. It can also be torque limiters.. the only way to verify that is to run a OBDII scanner and log Throttle position, RPM and boost. If it falls off to 12psi at 5,000RPM then you know its torque limiters.
Just to rule out all the other possibilities, spend $40 and get yourself a new belt and see if that cures it.. If not, talk to Karl (the owner) and see if they can have another look at the ECU.
Thread Starter
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Joined: Jul 2007
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From: Florida
E55 AMG
AA is a very good company and they were actually the ones that were helping me get a tune done for the MBs. Their programmer that was working with them is no longer there and someone else now is doing the programming so I am not sure whether or not the same files are being used.
I think something is wrong with the car but you can't be 100% positive it is the tune.. it could be belt slip or something else causing the ECU to dump fuel. That fuel dump at 5,000RPM is indicative of a belt slip issue from my experience. It can also be torque limiters.. the only way to verify that is to run a OBDII scanner and log Throttle position, RPM and boost. If it falls off to 12psi at 5,000RPM then you know its torque limiters.
Just to rule out all the other possibilities, spend $40 and get yourself a new belt and see if that cures it.. If not, talk to Karl (the owner) and see if they can have another look at the ECU.
I think something is wrong with the car but you can't be 100% positive it is the tune.. it could be belt slip or something else causing the ECU to dump fuel. That fuel dump at 5,000RPM is indicative of a belt slip issue from my experience. It can also be torque limiters.. the only way to verify that is to run a OBDII scanner and log Throttle position, RPM and boost. If it falls off to 12psi at 5,000RPM then you know its torque limiters.
Just to rule out all the other possibilities, spend $40 and get yourself a new belt and see if that cures it.. If not, talk to Karl (the owner) and see if they can have another look at the ECU.
Banned
Joined: May 2004
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From: Richmond Hill, Ontario
2003 E55 AMG
If its not belt slip, then check these 2 things:
Datalog the Boost (MAP sensor) and timing.. Would be good to verify you are not getting any knock.. What fuel are you using?
Datalog the Boost (MAP sensor) and timing.. Would be good to verify you are not getting any knock.. What fuel are you using?
I already tryed putting on another belt and I didnt feel a differnce so I can rule that out. I also just had the IC pump and h/e temp checked via star and it checked out normal. Im gonna get a data logger and boost gague on the car later today and and get some info from that.
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From: Florida
E55 AMG
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From: Florida
E55 AMG
Update...Went back down to Active today and they changed some things in the ecu. At first they didnt take off the boost limiter/load limter fully because they didnt know that the car had the air pump recall flash done so that part of the tune went back to stock after a day of driving. Now they say its fully off. I dynoed the car again tonight but im still not happy with the power and AFR, something still isnt right. Here is the dyno. Im thinking about just getting my money back and going with the VRP tune at this point. I also want to thank Rflow306 for meeting me down there and helping me out.
Last edited by hamann69; May 12, 2008 at 09:46 PM.
Thread Starter
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From: Florida
E55 AMG
Well my car made 426whp stock so only 20whp gain is not right it should be at least 40whp over stock. Also the AFR isnt supposed to go rich how it is. Here is the vrp dyno with pulley/ecu so you guys can compare. I dont think im gonna be there this Thursday its pretty hot out.
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From: Mia
2005 E 55
Well my car made 426whp stock so only 20whp gain is not right it should be at least 40whp over stock. Also the AFR isnt supposed to go rich how it is. Here is the vrp dyno with pulley/ecu so you guys can compare. I dont think im gonna be there this Thursday its pretty hot out.
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Joined: Oct 2007
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E320
Your numbers look pretty dead on compared to other cars we have done. You also assured AA that you did not have the newest recall. Luckily Rflow was able to help you figure that out. The intake air temp needs to be addressed as well.
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From: Florida
E55 AMG
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E320
AA is a very good company and they were actually the ones that were helping me get a tune done for the MBs. Their programmer that was working with them is no longer there and someone else now is doing the programming so I am not sure whether or not the same files are being used.
I think something is wrong with the car but you can't be 100% positive it is the tune.. it could be belt slip or something else causing the ECU to dump fuel. That fuel dump at 5,000RPM is indicative of a belt slip issue from my experience. It can also be torque limiters.. the only way to verify that is to run a OBDII scanner and log Throttle position, RPM and boost. If it falls off to 12psi at 5,000RPM then you know its torque limiters.
Just to rule out all the other possibilities, spend $40 and get yourself a new belt and see if that cures it.. If not, talk to Karl (the owner) and see if they can have another look at the ECU.
I think something is wrong with the car but you can't be 100% positive it is the tune.. it could be belt slip or something else causing the ECU to dump fuel. That fuel dump at 5,000RPM is indicative of a belt slip issue from my experience. It can also be torque limiters.. the only way to verify that is to run a OBDII scanner and log Throttle position, RPM and boost. If it falls off to 12psi at 5,000RPM then you know its torque limiters.
Just to rule out all the other possibilities, spend $40 and get yourself a new belt and see if that cures it.. If not, talk to Karl (the owner) and see if they can have another look at the ECU.
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E320
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From: 20854
new balance
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E320
