Sounds good. Do both of you guys have cat-delete and air filter? Hope the tune turns out good

 

yup we both have same mods.

 

 

I dont have K&Ns

 

yeah, i agree. i actually called speedtuning for my 550 no one answered. i even sent them a messege on here and still no answer. seems strange to me.I am considerding doing this but im worried about a few issues. all though for the price and result ratio. its not bad from what they claim.

if i remember reading correctly you asked if a dealer can find out if you flashed the ecu.. and yes they can, but they generally dont touch the ecu unless you complain about performance issues.

another potential problem with this could be if there is no rev redline safety. in other words if you switch to the wrong gear by accident, will the car switch gear or will it realize you screwed up and make the appropriate action?

my other question is why cant renntechh pull this much from an ecu flash. thers does about half as what this one can. i would like dyno results as well

 

Seems like you've had problems contacting the company like me.

As far as the rev limiter goes you bring up a good point. I wonder if there is any way to not touch the rev limiter...it would suck to accidentaly rev down and blow our engine.

I'm sure Renntech and pull this much from a ecu flash, i konw companies such as VP/Powerchip and Kleemann claim 405-410 hp...the only issue is they can't compare to the price of this.

I think the best tune that has good reviews is Powerchip, they have dyno's and countless customers (one being Roupin) who have local cars i can drive. Also, Powerchip's pricing is no where near Kleeman/Rennthech.

 

lol, funny....I never had a problem contacting Oliver....

 

maybe he is on vacation, I will try calling tomorrow with my own questions. Good question about the rev limiter

 

Why don't you ask him to send us a dyno of a 550 since you seem to be on Oliver's jock so hard

 

 

I called Speedtuning twice (first time no one answered, but it was a Friday evening) & the second time i got ahold of him... he took the time to answer a couple of my questions and seemed pretty honest. My experience with car tuners/shops has been negative overall though...they tend to not have the soft skills to run their business effectively...just my 2 cents....

 

I usually ignore customer calls on evening and weekends unless I listen to emergency voice mail

Could you post any interesting info/answers you got from him?

 

Not even once i had a problem contacting oliver, he always answers questions and sounds like a honest person. To the red line issue.... how in the ****ing world can you down shift in to the wrong gear in a fully automatic car? please explain.

Our engines on E55 push well over 500hp with out blowing lol.

 

Seems like AMS approves

 

Amen thx

 

Fusion2007's point was if you remove the rev-limiter, you no longer have the computer kick it when trying to downshift (and not let you if you're trying to downshift in the wrong gear). Thus without a rev-limiter there is a possibility that you downshift into a wrong gear and blow an engine. I'm not sure what SpeedTunning does with the rev-limiter so i'm not saying that this tune would do that, but Fusion's got a good point. Removing the rev-limiter would be like having a manual car, and with a manual if you try to downshift into the wrong gear - and go past the rev limiter - you destroy your engine.

Our engine on teh E55 does push well over 500hp but that's with a supercharger. I would be curious to see whats the most HP a CLK55's got as they as practically our engine being naturally aspirated.

 

why remove the rev limiter? it just gets raised by about 1500 RPM.

 

Based on a few posts I have read on another thread the rev limiter has to do with the TCU not the ECU

 

The rev limiter has nothing to do with the TCU and that's why the TCU still shift at the factory redline in an automatic mode even though the redline has risen up with ECU mods. Only in a muanual mode that will allow you to shift at the new rev limiter. The rev limiter is to prevented the engine from over rev and blew up the engine. You can risen the rev limiter a little bit but it VERY VERY STUPID to remove it completely. Here's my take on the risen the rev limiter, I don't think it do any good on an engine that designed for torques then horsepower but it make alot of sense on an engine that designed for top end like the Honda S2000. On an S2000 engine, the torques band are not flat like the Mercedes engine because it designed for top end power like in an F1 engine, so by risen the engine rev on the S2000, it allow the engine to make a little more power but the most benefit from it is, the torques/hp power come on sooner because you are at the higher rpm on the next gears. On a Mercedes engine, the torques power band is very very flat from 500 rpm to 2000 rpm you got 80% of the torques and it flat out around 2000-4000 rpm. As for the hp, it max out about 300-500 rpm before redline. Risen the rev limiter on the Mercedes engine doesn't benefit much in my opinions because the engine does not make any more power beyond factory redline. And your next gears change be at the higher rpm does not benefit at all because your still in the flat torques rpm.

 

I think Oliver told me that 2 years ago too but not too sure...its been awhile when I had mine 320.

Andy

 

rev limiter gets raized it doesn't get removed..

 

I stand corrected, probably misunderstood what I read

 

do they really raise it by 1500?

i thought it was only by 500 RPM

 

No one is that stupid to risen the rev bu 1500 rpm on any stock engine. It normal to risen it by 500 rpm.

 

dont quote me on the 1500 i had that that on my other car, i dont even think oliver will raize the limiter, all he is doing is mixing more air and gas in to the engine over the factory mixture.

i still don't understand what the fuss is all about.... this is a very simple tune, and very safe it's not maxing out our cars out put.