trag

That is the question...
Does anyone know wich is better?

trag

Thanks for all the helpfull advice people!!!
I think speeddriven is what i will go with.It seems like more people here have that over renntech...

slonar21

Check out Kleemann as well, I know they had a really good deal for members here at one point.

here it is
https://mbworld.org/forums/cl-class-...g-special.html

slonar21

Las summer I was looking into an ECU tune, sent out emails to Renntech and Kleeman, Renntech answered to all my questions with the phrase "If you want the best get Renntech". As for Kleemann they really answered my questions and actually stated that they probably get just a bit less HP out of there tune but they are much more careful with reliability and long term wear.

So Renntech is faster, about 20HP more than Kleemann, more expensive, pushes the engine nearer it's limit.

Kleemann is almost as powerful, a bit more conservative, much cheaper

That is my opinion anyways, not proven facts

BlownV8

I did the Renntech tune and I highly recommend the tune. The power was more than advertised and there were no issue with driveability.

slonar21

Just so everybody knows, the TT V12 is rated a 493, but both Renntech and Kleemann stated that the true HP is 540, so the gains are between 60 and 80 hp with an ECU tune.

Solo_D33A

thought people have dynoed it stock at 470 -480 whp for the 600s? and the true is at about 510, in line with the newer models' 600's ratings?

trag

What is the hp gains for Kleemann?
Do they have a website?
Below is what i have learned thus far....(Not much)

Renntech-$5400, 625 hp
Speedriven-$2200 613 hp

slonar21

540 HP would be at crank


Here is the web site for Kleemann
http://www.kleemann.dk

here is the V12 page
http://www.kleemann.dk/Performance/Engines/V12.aspx

Kleeman states 627 HP, if my memory is good they told me when inquired that with the ECU only tune it would be more like 615 HP

slonar21

Here is the Kleemann dyno

BlownV8

I gained over 125 RHWP on an independently owned dynojet with the Renntech tune. I'm always a bit leary when the tuners give you their dyno numbers.

slonar21

Wow, what octane grade are you running, you got that with only an ecu tune?

BlownV8

Yes, just an ECU/TCU. Car was tuned for 93 octane.

slonar21

This post has once again pushed me to research ECU tunes by different people,

Renntech
VRP
Eurocherged
Kleemann
Veloce
Speedriven
Evotech
Brabus (not really, to $$$$, complete engines...)

On dragtimes.com all the best times are by Renntech or Eurocharged, actualy they seem to be the only times. Nothing else, so it is very difficult to compare. I have read the Renntech and Evotech have the same tune, one in Europe the other in America. They all claim pretty much the same gains, but I have yet to see races against each other ex: Renntech vs Kleeman (for the V12)

The other thing that came to mind is the cost and resale value, Renntech is the most expensive but will probably by worth something in resale, Kleemann might be worth something as well, but I think the smaller tuners wont help the resale value at all since they are pretty much unknown and don't have any reputation.

As for warranty they all have the same thing, the tune it's self is under warranty, nothing else. If a bad tunes damages your engine you are screwed, one more reason to go with a reputable tuner that has tested thoroughly it's ECU programing.

One thing seems obvious, Renntech is the most expensive but seems to be the product with the most proven results, still it is double what the others are charging.

Damn, I would like to see a Renntech V12 vs Kleemann V12 1/4 mile

One last thought, Not all tuners do the TCU, so that might be important as well in a decision, often people get the ECU/TCU done.

sales@eurocharged.com

We write our own ECU software and we offer a custom Kleemann TCU to match. :-)

Please let me know if you have any questions.

Jerry

trag

It would be nice just to even see a 0-60 video for them...

slonar21

Can you explain what you do to the boost, rpm, gas mixture... How exactly does a V12 TT go from 500hp to 625hp, what are the base lines vs tune settings?

sales@eurocharged.com

It's a boosted car, so simply raising the boost, followed by timing, fueling, trq limiter adjustments will allow the car to make 625hp.

Airboxes help get more air in and more peak HP. Heat Exchangers allow the car to make more consistent power and in some cases, make a little more.

Once I get near a PC, I'll send you a PM with a little more detail.

anthraciteboy

Trag - I have a tune from Jerry at Eurocharged and I gotta to say it left a on my face the entire way home and everyday when my right foot decides to hit the floor. You get nothing but professional quality service from Jerry. I highly recommend his tune in all respects including reliability, results and bang for your buck.

I reflashed my car to stock for a maintenance service and could not go one day without having a tune in the car when I got it back.

My car is completely stock except for the Eurocharged tune and I would be happy to make some in car videos to show the results between stock and a Eurocharged tune going from 0-60 and 0-100.

What do you say Jerry, you up for it?

Henry

Speedriven1

Really? Wow, that's surprising. I think what you're actually seeing is that - while more people have "brand x" or "brand y" over Speedriven (because, let's face it, we are a newer shop, even if we've all been in the industry a while), I think more people are happier with what we've been able to deliver. I think the price and value is really there, also.

We look forward to working with you.

Speedriven1

Some of the 600s are very underrated, that's true - but some aren't, and do dyno a bit lower. You need to look at the delta in hp on a before/after dyno run to really see what you've got.

Speedriven1

CL600 w/ Speedriven tune. Stock v. tune.

Also, keep in mind that you can go back and forth between stock/tune files without removing the ECU using the Block Tuner, so you can take the car to the dealer without issue. PM me for details.

Thanks!!

trag

When can we expect videos?
Is there anyone else here with ecu/tcu tunes that might want to contribute experiences/videos?

Speedriven1

What videos are you looking for?

trag

I was hoping people with ecu/tcu tunes would post in car videos 0-60,or anything.
I cant find any on youtube or anywhere.