Programmable tcu for factory cars with a 722.6
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Joined: Oct 2008
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From: seattle
1990 300ce supercharged and intercooled
I would simply ask some of the tuners what they have access to. HPtuners is doing stuff with the Dodge stuff now. I think there is a good chance that that same program will access Mercedes. I have used a sds machine to look at the Dodge tcm before so some of the protocols are the same.
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2005 e55 AMG
I have seen different with my car. Always had lock up right after the 1-2 shift and it feels funny...like a double shift. Normal driving it blends right into the shift but get on it and you will feel it. This is why I never got the 3k converter because if it locked right away I would be lossing some benifit...no???? I checked this also by going into the wireing to disconnect the TCC and it would not lock up so I know what its really doing.
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From: seattle
1990 300ce supercharged and intercooled
We normally lock up converters at the top of 2nd gear, right before the shift to 3rd. Under full load you want to lock the converter high in the rpms where it is almost coupled anyways. Trying to lock one up under full load at low rpms where there is a lot of stall will take one out pretty quickly. Mercedes uses very tight converters from the factory so you can do it at lower rpms. You have to look at the slip ratio in the converter to see.
But yes once you are passed the stall on the converter you are just loosing power through it. So it should be locked for efficiency which is the same as power loss.
I ran both ways on a dyno a few years ago in a car of mine and it was 11rwhp out of around 300rwhp. So a pretty decent amount.
But yes once you are passed the stall on the converter you are just loosing power through it. So it should be locked for efficiency which is the same as power loss.
I ran both ways on a dyno a few years ago in a car of mine and it was 11rwhp out of around 300rwhp. So a pretty decent amount.
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From: seattle
1990 300ce supercharged and intercooled
I am working on this daily. I have a few solid base maps built for some different setups. There are still a few things to work out on the firmware. I am also at the point that I am trying it in as many different cars as I can to see what is different from model to model and year to year.
When I get the firmware sorted out for the proper timing on on the solenoids then I will start slowly releasing them. Still working on how I am going to do support since the strategy is fairly complicated. This of course dictates price as well. I will get a hold of a local E55 and get a solid tune built for these cars as well.
When I get the firmware sorted out for the proper timing on on the solenoids then I will start slowly releasing them. Still working on how I am going to do support since the strategy is fairly complicated. This of course dictates price as well. I will get a hold of a local E55 and get a solid tune built for these cars as well.
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Thread Starter
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Joined: Oct 2008
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From: seattle
1990 300ce supercharged and intercooled
I am about to see how supporting one goes. Depending on how this goes, I will start releasing this on a limited basis. The main thing is going to be how the car is setup. Special cases are going to be harder to deal with.
Thread Starter
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From: seattle
1990 300ce supercharged and intercooled
Did some testing in a E55 the other day. Always forget the vbody is different. Had to drop pressures a bit. Did not have a lot of time to play but got it down to a basic starting point. Need to get back in one for a few hours to dial it in a bit. So far I have been pretty happy with the small amount of changes from car to car.
Rev matching will not really be possible most likely. That would require the ECU to do this as well. I could try a request for more tq but I do not know if the ECU will do anything.
Rev matching will not really be possible most likely. That would require the ECU to do this as well. I could try a request for more tq but I do not know if the ECU will do anything.
Thread Starter
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Joined: Oct 2008
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From: seattle
1990 300ce supercharged and intercooled
Got a bit more seat time in an SL55 the last couple of days. Getting the basic upshifts set up. It is all very drivable at this point and shifts firm but not abusive. Interestingly I am getting some tq reduction on the 1-2 shift at WOT I think it might be because I am getting wheel spin on the shift. I am only seeing a 1mph push on the gear change but maybe that is enough. I will need to log the CAN from ESP to see if it is asking for the reduction. Hopefully I will get some more time in the car the next day or two.
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From: Florida
2002 CLK 55 AMG cabriolet Eurocharged
Well it sounds like you have found some glory in customizing the TCU on Benz 722.6.
Many of us including me have found fault when encountering ESP, and ABS under moderate performance use. My transmission shifts fine but under performance demands, The adaptive strategy program makes the torque curve into nothing.
Manual shift from 1 is extremely mush. Perhaps the maybach selonoids will correct some of this. This is one trans I have never opened for service overhaul.
The kick is the serial cypher found to communicate with the TCU. U Found
I am hoping you share your controller along with others so we can enjoy enhanced Benz.
Best, Gator
Many of us including me have found fault when encountering ESP, and ABS under moderate performance use. My transmission shifts fine but under performance demands, The adaptive strategy program makes the torque curve into nothing.
Manual shift from 1 is extremely mush. Perhaps the maybach selonoids will correct some of this. This is one trans I have never opened for service overhaul.
The kick is the serial cypher found to communicate with the TCU. U Found
I am hoping you share your controller along with others so we can enjoy enhanced Benz.
Best, Gator
Super Member
Joined: Jan 2016
Posts: 599
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2004 E55
Well it sounds like you have found some glory in customizing the TCU on Benz 722.6.
Many of us including me have found fault when encountering ESP, and ABS under moderate performance use. My transmission shifts fine but under performance demands, The adaptive strategy program makes the torque curve into nothing.
Manual shift from 1 is extremely mush. Perhaps the maybach selonoids will correct some of this. This is one trans I have never opened for service overhaul.
The kick is the serial cypher found to communicate with the TCU. U Found
I am hoping you share your controller along with others so we can enjoy enhanced Benz.
Best, Gator
Many of us including me have found fault when encountering ESP, and ABS under moderate performance use. My transmission shifts fine but under performance demands, The adaptive strategy program makes the torque curve into nothing.
Manual shift from 1 is extremely mush. Perhaps the maybach selonoids will correct some of this. This is one trans I have never opened for service overhaul.
The kick is the serial cypher found to communicate with the TCU. U Found
I am hoping you share your controller along with others so we can enjoy enhanced Benz.
Best, Gator
I came from the open source tuning world of Saab/T7 suite, solder 10pin header on ECU and access with free software reflash at will in car with built in PC at gas stations E85 flex fuel tuning etc. Amazing forum support. We are getting there with these cars as well! Super exciting times are ahead.
So I think what Gator is getting at is:
What is your price point for a few beta-testers for say 5-10 kits built for a group buy.
What deposit do you need if any?
When can we expect delivery if it is even possible?
What is your Paypal address if you can provide tolerable answers for the first three questions
We all are super excited and your hard work is laudable to say the least, IMHO information and access are godsends so thank you!
Kind regards,
Will
Thread Starter
Super Member
Joined: Oct 2008
Posts: 837
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From: seattle
1990 300ce supercharged and intercooled
I think there is some misunderstanding. This is a tuner based system. I have done all the integration work and have starter calibrations but it requires end user tuning. Even if I built a full tune around a stock or slightly modified car it would still most likely require adjustment on the end users car. Primarily I use these for swaps into older cars that did not come with this transmission and vehicles that are heavily modified and require custom tuning. There is a full tuning suite that works with the package and additional wiring for options that are not part of the basic setup can be done at your convenience. The harness for this type of setup is just a patch harness to plug into the facotry wiring harness. All pin are used in the tcu connector so that wiring can be done at the factory connector instead of into the aftermarket tcu connector.
This is a PCS product that I have co developed for this transmission.
This is a PCS product that I have co developed for this transmission.
