W213 AMG Discuss the W213 AMG - 2017 to present

Anyone try the new Renntech ECu

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Old Feb 21, 2019 | 03:55 PM
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Anyone try the new Renntech ECu

Anyone try the new RennteckHHT handheld ECU set-up ?
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Old Feb 22, 2019 | 08:24 AM
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Hello,
Yes this looks interesting. My X6M had a HHT from Velos designwerks, and it was great. It made it easy to go back and forth from tuned to stock. Here is the link for the Renn:
Cheers,
https://www.renntechmercedes.com/ind...13-e63s-detail
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Old Feb 22, 2019 | 09:26 AM
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so, how does it work ? Just plug that into the OBD port and switch to 'stock' or 'tune' ?
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Old Feb 22, 2019 | 11:05 AM
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Interested in the Renntech ECU also but wondering if any other reputable shops provide a cheaper alternative with similar performance. Also, since I'm in California and don't have access to octane higher than 91, is getting a tune basically a waste of money?
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Old Feb 22, 2019 | 11:39 AM
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Is this not similar to the OBD port tunes that all the other tuners are doing now? EC told me last I was there they can do it for the M177 as well using the MyGenius handheld
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Old Feb 22, 2019 | 03:35 PM
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Originally Posted by bobblehead
so, how does it work ? Just plug that into the OBD port and switch to 'stock' or 'tune' ?
That's pretty much it. When ordering, you have to supply us with your VIN, we then pre-load the module with the tune.
So when you receive the tuner, it's ready to go. No need to download a software to your computer, load the tuner, etc.

When you receive the module, make sure the toggle switch is set to tuned, car in key position 2 and then plug the module in your OBD2 port.
The little LED turns red and starts loading. After about 2 minutes the LED turns green and the process is done.
You can now unplug the module and you're good to go.

If you decide you want to go back, just repeat the process with the toggle switch moved to stock. You can switch between tuned and stock as often as you like.
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Old Feb 22, 2019 | 08:28 PM
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So I just noticed the 93+ octane - It's almost impossible to find anything higher than 91 in Utah ( unless you go to a race gas center, and that is a P.I.T.A.) wonder if that is an issue for the tune.. detonation?
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Old Feb 22, 2019 | 08:53 PM
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Originally Posted by RENNtechHQ
When ordering, you have to supply us with your VIN, we then pre-load the module with the tune
so pre loaded basic tune with no further calibration ?
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Old Feb 22, 2019 | 11:22 PM
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Originally Posted by GreenFox
Interested in the Renntech ECU also but wondering if any other reputable shops provide a cheaper alternative with similar performance. Also, since I'm in California and don't have access to octane higher than 91, is getting a tune basically a waste of money?
I live in the Sacramento area and there is a pump that you could obtain 100 octane unleaded race gas. There are several places in the Bay Area too. My friend fills up at the 76 station in Redwood City which has 100 octane unleaded gas. https://www.240turbo.com/Unleaded_Ra..._in_SoCal.html. This link shows all the stations with race gas in NorCal and SoCal.
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Old Feb 23, 2019 | 02:11 AM
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Originally Posted by dav461
so pre loaded basic tune with no further calibration ?
Related to the above question, is the module updatable so that we have access to new/revised tunes?
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Old Feb 23, 2019 | 01:36 PM
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Originally Posted by RaceDeck
So I just noticed the 93+ octane - It's almost impossible to find anything higher than 91 in Utah ( unless you go to a race gas center, and that is a P.I.T.A.) wonder if that is an issue for the tune.. detonation?
We still offer a tune for 91 octane. Same process, same module.

Originally Posted by dav461
so pre loaded basic tune with no further calibration ?
We still can do customization. But if not noted/discussed directly, it will be our highest power ECU Upgrade.
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Old Feb 23, 2019 | 03:32 PM
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Will the gains be much less using the ECU on 91 octane? Would love to get more info. Thank you.
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Old Feb 26, 2019 | 07:14 PM
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Well I got the new Renntech handheld ECU downloaded and WoW! That thing wakes the sleeping giant. Just for fun, I did a launch control to 60 and did 2.88 .. keep in mind that is on 91 octane and at 5000 feet above sea-level. Happy Customer
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Old Feb 26, 2019 | 08:21 PM
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Wow. I wish you have done some YouTube clips for us to see
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Old Feb 26, 2019 | 09:48 PM
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Originally Posted by RaceDeck
Well I got the new Renntech handheld ECU downloaded and WoW! That thing wakes the sleeping giant. Just for fun, I did a launch control to 60 and did 2.88 .. keep in mind that is on 91 octane and at 5000 feet above sea-level. Happy Customer
In the process of choosing a tune as well. What made you choose Renntech vs the other tunes out there? AMR, OETuning, etc??
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Old Feb 28, 2019 | 02:18 PM
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Originally Posted by Lucabratsi
Hello,
Yes this looks interesting. My X6M had a HHT from Velos designwerks, and it was great. It made it easy to go back and forth from tuned to stock. Here is the link for the Renn:
Cheers,
https://www.renntechmercedes.com/ind...13-e63s-detail
We are now able to do the W213's with the Handheld as well if you were interested

Last edited by velosdesignwerks; Feb 28, 2019 at 02:47 PM.
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Old Feb 28, 2019 | 02:30 PM
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Eurocharged is currently offering their tune for $1500 vs Renntech's that is close to $4000. Is tuning pretty much cookie cutter now or is there any real benefit left to visiting a local tuning shop with a dyno? Are any tunes open source in that the customer can see what actually was changed vs just seeing the end result? Does Renntech have some secret sauce in their tune or are they just more expensive due to their higher marketing and overhead costs?
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Old Feb 28, 2019 | 04:06 PM
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Originally Posted by stephen@velosdesignwerks
We are now able to do the W213's with the Handheld as well if you were interested
Yes, I am very interested. You guys really supplied both a great tune, and great support for my BMW X6M. I will contact you. Is this the same, specifically with the myGenius?
Cheers
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Old Feb 28, 2019 | 04:35 PM
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Originally Posted by Lucabratsi
Yes, I am very interested. You guys really supplied both a great tune, and great support for my BMW X6M. I will contact you. Is this the same, specifically with the myGenius?
Cheers
Appreciate the kind words and yes same process as your X6M. Can send me a PM or email at stephen@velosdesignwerks.com whenever you are want.
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Old Feb 28, 2019 | 11:58 PM
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Originally Posted by GreenFox
Eurocharged is currently offering their tune for $1500 vs Renntech's that is close to $4000. Is tuning pretty much cookie cutter now or is there any real benefit left to visiting a local tuning shop with a dyno? Are any tunes open source in that the customer can see what actually was changed vs just seeing the end result? Does Renntech have some secret sauce in their tune or are they just more expensive due to their higher marketing and overhead costs?
I wish they were open sourced. You’d need somebody to extract the maps out of the (probably obfuscated/encrypted) MyGenius map files.

I got my OETuning tune for $1,300 all in with the device. Is there a Eurocharges/Renntech tune out there with 25hp more? Probably...
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