W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Renntech ECU plug in

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Old Jul 21, 2009 | 11:46 AM
  #1  
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E55
Renntech ECU plug in

http://www.worldcarfans.com/10907202...rade-announced

This looks interesting. Wonder what sort of gains you would get
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Old Jul 21, 2009 | 02:19 PM
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I have been using it for about 6 months now. Works great it's an ECU tune do the easy way.
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Old Jul 21, 2009 | 02:27 PM
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What is the cost ?
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Old Jul 21, 2009 | 02:38 PM
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Probably $1500. I would love to hear more opinions about this item, I always wanted to put ecu program that would allow to have high performance tune and also possible to put back to stock when take it to the dealership.
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Old Jul 21, 2009 | 02:41 PM
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wow, very cool.

how much? looks a bit large.

Does it need to stay connected? or does it flash and one can remove after the file transfer is done.
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Old Jul 21, 2009 | 02:42 PM
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So who sells this and what's the cost for the SL65?
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Old Jul 21, 2009 | 03:47 PM
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haters crazy
^ Umm Renntech

Will this work on older models?
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Old Jul 21, 2009 | 03:47 PM
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Originally Posted by CharlyE500
What is the cost ?
After the sales meeting tomorrow, I will fill everyone in.
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Old Jul 21, 2009 | 03:49 PM
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Originally Posted by blackbenzz
^ Umm Renntech

Will this work on older models?
yes it will Ahmad
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Old Jul 21, 2009 | 03:51 PM
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Originally Posted by bfnnrgn
So who sells this and what's the cost for the SL65?
What year is your SL65? wondering if its a ME 2.71 or 2.72 is 07+
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Old Jul 21, 2009 | 04:56 PM
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E55
Originally Posted by rarfinancial
I have been using it for about 6 months now. Works great it's an ECU tune do the easy way.
what sort of power gains did you get with this?
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Old Jul 21, 2009 | 05:11 PM
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Originally Posted by AdrianE55
what sort of power gains did you get with this?
This is not a power mod. the "RAT" (Renntech Auto Tuner) allows you to have multiple tunes on your computer then upload two at a time to your RAT via USB.

This mod will not do the average guy with one Renntech tune much good. For the racer and traveler it will shine. You can store many tunes on your home computer then select any two of them and load them up to the RAT. You can have all sorts of tunes for many different fuel types, Nitrous blablabla.

Also as far as i know you can have a stock file as well for dealer service.
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Old Jul 21, 2009 | 05:17 PM
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Thanks for info Mike. I guess will have to wait that other company will come up with a tune via obd-2. I know on stock pulley won't feel big of a difference, but still
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Old Jul 21, 2009 | 06:10 PM
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and is that true with renntech ECU upgrade better HP and also 2 MPG better ? I heard about that a while ago....
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Old Jul 21, 2009 | 06:12 PM
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Originally Posted by MBH motorsports
This is not a power mod. the "RAT" (Renntech Auto Tuner) allows you to have multiple tunes on your computer then upload two at a time to your RAT via USB.

This mod will not do the average guy with one Renntech tune much good. For the racer and traveler it will shine. You can store many tunes on your home computer then select any two of them and load them up to the RAT. You can have all sorts of tunes for many different fuel types, Nitrous blablabla.

Also as far as i know you can have a stock file as well for dealer service.

Ah ok..... thanx for the info !
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Old Jul 21, 2009 | 06:33 PM
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Originally Posted by Karlson
Thanks for info Mike. I guess will have to wait that other company will come up with a tune via obd-2. I know on stock pulley won't feel big of a difference, but still
It is a OBD tune. All you do is plug this in and it loads a tune file.
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Old Jul 21, 2009 | 06:39 PM
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Very interesting device..... Didn't they call it the block a while back? I have a few questions for you James.....

1) Assuming 2 different tunes are loaded into the RAT, and the RAT is connected to the car and it's running a selected tune. What happens to the original tune that was in the car? Is that tune replaced by one of the tunes in the RAT or does that original tune remain and the computer now reads the tune directly from the RAT?

2) Does the RAT have to stay plugged in? If so, what happens if it is un-plugged accidentally while driving? Will the car default to the last installed tune?

3) If I'm running tune 1, and I would like to switch to tune 2, do I have to shut down the car or can it be switched live?
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Old Jul 21, 2009 | 06:46 PM
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correction: If you don't have a Renntech tune it will come with a tune for home flashing. Rather than shipping your ECU to Renntech. So another benefit is you dont have to pull your ECU out anymore you can just ship them the RAT.
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Old Jul 21, 2009 | 07:18 PM
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Originally Posted by MBH motorsports
correction: If you don't have a Renntech tune it will come with a tune for home flashing. Rather than shipping your ECU to Renntech. So another benefit is you dont have to pull your ECU out anymore you can just ship them the RAT.
Mike, then now I have a question about home flashing.. I will give you my example, so you might help me out. I have e55 stock to the bone and because of people in my local dealership are bag of tools,They love to void warranties because of performance modifications I don't want to send ecu and install pulley for that So will that plug-in work fine with a stock car just to get more hp?
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Old Jul 21, 2009 | 08:30 PM
  #20  
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Originally Posted by Karlson
Mike, then now I have a question about home flashing.. I will give you my example, so you might help me out. I have e55 stock to the bone and because of people in my local dealership are bag of tools,They love to void warranties because of performance modifications I don't want to send ecu and install pulley for that So will that plug-in work fine with a stock car just to get more hp?
buying just the unit without a tune will do nothing for you.

You will want to purchase a tune with the RAT to allow you to go back and forth from a tuned file to a stock file.
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Old Jul 21, 2009 | 08:37 PM
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Originally Posted by MB_Forever
Very interesting device..... Didn't they call it the block a while back? I have a few questions for you James.....

1) Assuming 2 different tunes are loaded into the RAT, and the RAT is connected to the car and it's running a selected tune. What happens to the original tune that was in the car? Is that tune replaced by one of the tunes in the RAT or does that original tune remain and the computer now reads the tune directly from the RAT?

2) Does the RAT have to stay plugged in? If so, what happens if it is un-plugged accidentally while driving? Will the car default to the last installed tune?

3) If I'm running tune 1, and I would like to switch to tune 2, do I have to shut down the car or can it be switched live?
Mo,

The RAT is basically the block that rick has but for the ME2.71 and not for the ME9.7's that the 63's and 550's have.

1.) I'm kind of confused, but hopefully I'm answering your question. the RAT basically is a flash loading tool. Which every files you have uploaded to the RAT, those will be the files that you can switch between.

2.) The RAT does not need to remain plugged in.

3.) However you will need to go through a few key cycles for the new file to be uploaded so no switching of files on the fly.
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Old Jul 21, 2009 | 08:59 PM
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this is a great product if the price is right..

I just hope the tune is not $1500 and another $500 for the gadget.


I'm sure other companies can come up with a cheaper solution.
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Old Jul 21, 2009 | 09:06 PM
  #23  
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Originally Posted by TopGun32
this is a great product if the price is right..

I just hope the tune is not $1500 and another $500 for the gadget.


I'm sure other companies can come up with a cheaper solution.
I think that would be a more then a reasonable price, considering that powerchip also sells there tune for $1495.
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Old Jul 22, 2009 | 04:03 AM
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Originally Posted by TopGun32
this is a great product if the price is right..

I just hope the tune is not $1500 and another $500 for the gadget.


I'm sure other companies can come up with a cheaper solution.
Well there was a guy on the board a month back that said he worked for diablo sport and they would be coming out with a hand held tuner for around 600.00 in about a year.
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Old Jul 22, 2009 | 03:32 PM
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Originally Posted by James@ACGSD
What year is your SL65? wondering if its a ME 2.71 or 2.72 is 07+
It's an '06.

Question. How do they ptotect the tune installed on the RAT from being shared with buddies etc? It sounds like you're not limited to Renntech tunes so could you buy just the device and get another tune to put on it?
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