Blake P

Talk about the pot calling the kettle black!

mig888

I'm sorry, declined again?. Could you please shoot me that P.O.? I'll kindly take the personal stab at me if you prove to the world out there who you think I really am. You're comparing filamentous bulb sales to ECU tuning... that's a first, I guess.

Have you had your lunch yet? Would you like a waaamburger with all those cries? I can provide them if you would like to continue to subject yourself to mockery.

mig888

Create fake user names to sell software through deception? When the hell was this issue brought up - it's a great idea, but funny you should mention it so defensively.

StealthAuto

For all reading this, note the location of all the above posters. Looks to me like you're all friends.

I would love to hear some testimonials from Speed Innovation customers (real customers) from states other than California; customers or forum members that have no financial interest in Speed Innovation and do not live in close proximity to each other. We all know friendships will sway opinions in one's favor.

Any out there? Chime in

StealthAuto

I have no reason to argue with you, we both know the truth. Keep on truckin' and do your thing

mig888

So now local customers aren't considered true software testimonials? Isn't the best form of advertisement through word of mouth?

The basic fact is that if there were a C-class meet in Southern California - yes, the likelyhood of C-class owners to actually become friends and discuss their mods are relatively high. I'll be honest, I've driven my friends' cars, all different kinds... okay sure, SI-tuned .

You're continuing to poke at a seriously dry sponge here. No wait, I'll be the cheese, you be the grater, cuz there's more holes in your stories than Monterey Jack. :\.

MJ50

i have SI ECU on my car... but i'm in california (not sure what difference that makes)... price was good, performance was noticeable, didn't need to pull out ECU and ship... can't complain...

fyi - friends recommend what is best, salesmen recommends what is most profitable...

jgsx

Huh? Not to add fuel to the fire, but I've caught Powerchip trolling the forum under different screen names to promote Powerchip software. I have no idea what the story is with SI.

mig888

to you sir, for you have not forgotten the pirate's code. Take what ye can, give nothing back! Arrr!

LOL.

neilsam

I totally agree, especially the second point where there is no address on the website AND no one to answer the phone.

Powerchip on the other hand, answered my call right away, sent me an instruction sheet on how to remove the ECU, they are well organized. I feel MUCH more comfortable with them so they will most likely get my business.

drexappeal

Why is it that there always seems to be this debate between the two different softwares? Look, it's simple. People will choose whomever they decide to go with and who to give their money to.

From what I have seen, SI has done a lot of custom tunes. That's just from what I have researched. Powerchip has done some tunes as well. Both companies seem to have their supporters, so why argue about it?

Secondly, I don't think this forum is a place to slander any particular manufacturer. If any of you have a problem with another manufacturer, your private business dealings should be conducted elsewhere, not on this forum. I don't think it is fair for a sponsor to slander a product being offered by another sponsor that pays good money to be a sponsor on these boards.

AndySays

I also have the Speed Innovation ecu tune for my C350 and I love it in fact. But then again I guess my testimony doesn't count even though I live closer to StealthAuto But then it is a very good point that you brought up the fact that REAL CUSTOMERS on this forum should chime in, not SPONSORS who are trying to only sell their own product



So any other real customers would like to share their experiences? And for the sake of argument for StealthAuto, only "real active forum members" who put their time here. No trolls please

eunosracr

I'm in Miami, Fl and have no affiliation to SI. I had them tune my c230 and love it. I would do it again in a second. Nothing like SI and a Sprint Booster to make your day better.

StealthAuto

I linked you to a testimonials page that has 30+ Mercedes customers on it...

I myself believe Vadim is a VERY active and helpful forum member, if not THE MOST helpful member. Look at this thread he posted on his Powerchip findings... https://mbworld.org/forums/showthrea...t=vadim+tuning

If you want to see "real active forum members" all you need to do is search around, it's as easy as that
Thread 1
Thread 2
Thread 3
Thread 4
Thread 5
Thread 6
Thread 7
Thread 8
Thread 9
Thread 10
etc... etc... etc...

AndySays

Why search? Active members should easily find this thread and post. nay?

StealthAuto

This thread is in the C-class W203 section, only 1/20 of the forum at most. Due to such, a vast majority of active members don't even visit this section

AndySays

Oh but you forget that he IS asking his fellow C-class owners in the C-class W203 section. On top of that he is asking for the 3.5L ecu tuning for his C350 which I happen to own

Even though the C-class section may be 1/20 of the forum, it is pretty dam active

Drop-a-Daimler

I love this place. Hmmm. What to do? Well, I emailed a few questions to Powerchips but nobody would write back. I think I'm gonna pull the trigger on the SI ECU.

AndySays

I'm pretty sure you'll enjoy the SI tuned C350 as much as I have

Jon Levi is a good guy and answered all my messages if he didn't pick up the phone

Tangerine

I don't think so, unless the tune factored in all the performance parts you had installed. Creating power does not work like that, its adding parts that suits the powerband. A tune is usually the last thing that an engine tuner does (better to tune once). Adding more performance parts after the tune might decrease performance (or shift the powerband) due to the optimal A/F ratio used before. Its not just slapping on performance parts and making power, only the newbies think that way (no offense to anyone).

Drop-a-Daimler

I agree with most of what you point out here. It's good advice for sure. But I've built and dyno tuned 3 fuelie race motors now and done a lot and dyno'd a lot and learned a few things along that way. But I am no MB expert for sure so I come here to learn what works. And thanks all! What I HAVE seen in practice is that on a fuel injected motor with MAS, knock, and O2 senors with VVT and a closed feedback loop, you can add parts and see improvements as long as you are staying pretty close to your original tune. The only time I had to reprogram and ECU every time I added a mild part (not meaning cams or supercharger, meaning things like exhaust, headers, air boxes, mufflers, hi-flow filters, etc.) was when I was working on fuel injected motors WITHOUT O2 sensors and closed loop programming. Think motorcycles. In that instance your A/F ratio can get way off of a nice chubby 13 and you lose economy or power or both. But on the MB the sensors work to keep the volumetric efficiency within certain parameters. And it's the ECU programing that sets those parameters -- more fuel or spark here, less there to some degree based on the TPS readings and data from the feedback loop. So yes, if you are slapping on a SC you need to re-program the ECU or you're toast. But getting a set of performance data in your ECU and then adding headers can still give you decent results. Sure, not a perfect A/F ratio or spark curve that you might get from a mega-tight dyno tune after adding the parts, but just adding exhaust improvements will be detected at the MAS and O2 sensors and the ECU (with more aggressive injector pulse settings and spark curve) will still net you improved performance. The SC is a good example of an improvement that really does need a re-tune; cams are another good example. Cams change the valve timing (among other things) and really should be tuned at the ECU. But headers or mufflers (or both) after a performance ECU is plugged in? The performance won't go down unless the headers are crap. If they breath better, the MAS and O2 sensors will detect it and the hot ECU will crank the injector pulse duration, timing and spark and the motor will recognize the additional power and torque. At least that how I think about it. I'm not saying a tune after headers won't get you more power--it probably would--I'm just saying headers after the the hot ECU code will still net you power gains (if they are good headers and your ride is running right). Not really changing the shape of the power curve drastically, just moving it up mostly. Maybe I'm just way out of my league here. You MB tuners tell me. I'm here to learn about how my new car works.

splinter

Kudos for your fine post. It is indeed encouraging to read information such as yours on our forum. You exhibit and display much more than a modicum grasp and understanding of internal combustion engine theory and its relation to practical design and function. For that you have already earned much respect.

As you are well aware, volumetric efficiency is solely a function of a motor’s intake and exhaust tracts, piston crown configuration, combustion chamber design, valve timing and its effects on resonate tuning, and reciprocating speed. Any and all performance enhancing normally-aspirated and supercharged ECU modifications can only affect mixture strength and ignition timing. There is no third dimension associated with MB software modifications as they relate ultimately to horsepower and torque production. With our drive-by-wire configuration the “brains” can, of course, ultimately control throttle position via ASR and ESP inputs.

I am currently searching for a competent software tuner. As I progress through the perfunctory Stage1 modifications, and towards achieving what I hope to be Stage2+, I am only too cognizant that any anticipated HP gains can only be fully realized through the science and wizardry of properly exploiting the ECU.

StealthAuto

Feel free to email me with any questions you may have, I'll be glad to help.

Aaron(@)StealthAuto.com

StealthAuto

EXCELLENT POST!

Drop-a-Daimler

Thanks! I sent you a note.