Your statement is not specific to an incident where they caused a failure as a result of improper modification. It stands to reason anytime a tuner produces more HP there is some risk. You never know how a car has been driven or maintained or what the internal condition is of the components are. What I can say is if anyone can perform the job correctly Renntech can. They understand what they are dealing with and they have direct access to AMG Engineers and code. As this gets more complicated they are needed even more because the codes change all the time on different models. I would be very weary of anyone who claims to have the inside track on the latest AMG codes. The CLK-63 Black has 7,000 pages of code. If anyone can perform the job correctly Hartmut can. There is a lot of trial and error with a bunch of dyno testing. It's no easy job.

 

Okay Steve, we will wait for a full report.

 

I am sending Hartmut my ECU on Tuesday. He has found more areas for improvement and has a new map which he said has made good power gains. 30 HP and Tq but the car run's very strong because of the relation of the torque and horsepower curve. When you can get Tq and Hp in sync rising with the rev's, the motor pulls stronger as it rev's higher. A reverse example of this is the 2002 Porsche turbo. Pulls like a bandit from 3,000 to 5,500 then peters out when the Tq falls off sharply. Hp still gains but it dosen't make any more Tq. Will let you know how the latest software works but as he said I will see a big difference from idle on up. I wouldn't doubt it ! Steve

 

So does he insert your ecu into another car and then tune off the dyno results?
I'm interested in your results, I've been hoping to find someone to do a "real tune", not a flash that's the same in every 55K engine.

I've previously added a pulley which was good for 50hp and 60tq and I'm adding headers next week.

 

^^^cmon mike, Hartmut does not dyno tune, nor can he personally write code

 

Hey Dino nice to see you over here, are you sponsoring 6speed now?

 

I dunno' Jay, looks to me like Steve is saying that Harmut does dyno tuning.

 

You dont need to write code to know how to tune.

 

thanks

 

hey dynamic thanks for the ref.

 

No prob!