question form a new owner

hi everyone. I am from Hong Kong, i just bought a 2004 CLK 240. It is a great car, but i feel like i need more power.
So, my question is, what kind of aftermarket tuning can be done to my car??
i checked the Renntech website, but they did not have anything for 240, or 280??

thanks in advance

If your willing to send your ECU to California we can programme it here and return to you and we can also send you a pulley kit. You should get about 16-18hp with the ECU and 12hp with the pulley kit... we can also send you a diagram so you can modify your intake system to improve the airflow. www.singhautosport.com

thanks, can you give me a ball park price of the ECU and the Pully kit please?

An underdrive pulley adds zero hp. Nada. It shifts existing hp from driving your accessories to driving your rear wheels. It's effective, but it adds no hp whatsoever.

hi M28,

the price for the kit is about $1100 plus delivery (no tax because its an export). If you need some more information on what 'works' you can check the following websites...

http://www.kleemann.dk/site/Main/tuningproducts/performancekits

http://www.renntechmercedes.com/pdf/W203.PDF

the best place to get information on performance products and results is to check the tuner websites, this forum probably isn't the best place to get advice. You can always ask someone who has actually had work done to their car as apposed to someone who hasn't. I have never come across someone who wasn't happy and if there is someone out there... speak to the guys who carried out the service. We offer a 50% refund to customers who aren't satisfied, we haven't come across this yet. You can e-mail us your phone number and we'll call you in Hong Kong.

p.s. it takes a couple of minutes to remove the ECU.

I can't believe there's a vendor here selling a BS idea like a pulley is a power adder. I wouldn't trust anyone who claims that a pulley is a power adder. They DO NOT create hp. jags has an embarrassing misunderstanding of what a pulley does and is misleading you. Makes me wonder what other BS he'll sell you. Get water from a rock? Turn lead into gold?

As I said in my above post, you need to know that an underdrive pulley shifts existing hp from driving your accessories to driving the rear wheels, and underdrives your accessories (power steering, AC, alternatoror/generator, etc) as a result. You have to spend more time at higher RPM to get the same energy to the accessories that you got with the stock pulley. You can, for example, run down the battery and damage the power steering pump if you spend too much time in rush hour traffic that's stop and go.

Also, as I said in my above post, underdrive pulleys are effective in their purpose. You can feel the difference in torque to the wheels. Like everything else in life, however, it's not free. You sacrifice the efficient operation of the accessories to get this feeling. It's very much like changing gear ratios in the rear end and has the same result as far as feeling the difference. Gear ratio changes DO NOT create hp either. jags probably thinks that they do.

what do you do for a living lugnut? you have more know how than all the tuners in the world... you should quit Walmart and open a tuning shop. Your pathetic, with your $10,000 poor excuse of a Mercedes or trailer... or both.

Explain to us all how a pulley creates hp. I can't wait for this load of crap. Go on, tell us. We're waiting. Go on. While you're at it, explain where I'm wrong.

If you can only call me names (and my car trailer???) without explaining the source of hp from a pulley, then I'm afraid you're just going to remain a BS vendor who lies to his customers. What's worse is that you may not even know you're lying about the pulley and you may be lying about other things. You're a dangerous person who wouldn't be allowed near a car of mine and shouldn't be allowed near others. You're willing to lie to a customer to take their money.

If you make a claim around here, be prepared to back it up. If you make a ridiculous claim, you will be challenged. Count on it. Calling me names won't stop me from doing it. If you choose not to back them up, then those will be your true colors and people will see right through your BS after we're done. Arrogant pea brains like you really piss me off. If you knew what you were talking about and were arrogant, I could handle it.

You're the clown who couldn't explain how to reprogram the ECU to handle real power adders like boost or nitrous when I asked you. We learned that you only program for minor mods like high-flow air intakes, that actually don't even need aftermarket reprogramming on an OBDII engine--but you charge people to do it like they're getting something special from you. I guess real programming is too difficult for you? There's a lot you need to learn. You and your "tuning shop" may not be ready for prime time.

DO NOT TRUST THIS GUY. HE DOESN'T APPEAR TO KNOW WHAT HE'S DOING. HE APPEARS TO KNOW JUST ENOUGH TO BE DANGEROUS. CAVEAT EMPTOR.

Lugnut... BS? you talk a lot of it. So... everyone is wrong... Brabus, Kleemann, Hamann Motorsport, Carlsson, Hartge, Renntech, etc, etc. Spread the word Lugnut... your so full of it.

here are some links... get educated you fool!!!

http://www.renntechmercedes.com/pdf/W203.PDF

or maybe Renntech don't know what they're talking about?? you ponse

http://www.kleemann.dk/site/Main/tuningproducts/performancekits

just admit your wrong... it hurts but its ok. If not start a petition and get everyone to sign it, present it to to the above listed companies and see what they have to say.

you muppet, get a life.

This topic is now done, im not gonna waste my time with your incompetence. I produce 200mph cars with a proven track record, what do you produce??? hot air? As per the nitrous? who add's nitrous to a 100k car, how many people actually buy a SL55 and add nitrous?... sorry I don't work on Civic's.

it didn't mention at what RPM can achieve those torque.

seems you got to sacrifice more RPM just to get them.

a comparison graph would be more convincing.

mercedes-benz got a bunch of high quality engineers... so why don't they just do it the way kleeman and rentech do?

there must be some reason. it will shorten engine life? it's not proportioned? payback on fuel consumption?

Idiots like you always go off on a tangent because they aren't smart enough to stick to the point. I didn't think you were an idiot from the start. You convinced me of that every time you made a post. And, you chose the tone of this thread, not me. Running off to hide and refusing to discuss this won't make you right. It proves to me that you are wrong and are admitting it.

Nowhere on those tuners' sites do they claim that a pulley creates hp. That's because a pulley doesn't. They don't lie like you do. Do you even understand the difference between a power adder and a non-power adder? It's becoming obvious that you don't. You need to do some homework before you start making hp claims. Re-read my post about the accessories.

Just for the record, I'll say it in this post just as I said it in my previous post. An underdrive pulley works as far as a performance enhancement. We disagree on the source of that enhancement and the consequences, the "costs", of doing it.

Your comment on nitrous is more proof that you're just a lame VW Bug mechanic trying to make it in the real world. Just because you opened a shop doesn't mean you know squat. Anyone can do that. You can only mildly modify $100K cars. You leave the big stuff to the big boys like RennTech, Brabus, Kleeman, etc. What about boost, you moron? Does that overwhelm you too? And just because you remove the speed limiter from an ECU doesn't mean you build 200 mph cars.

You're amazing as far as customer relations. If someone asks you to back up a claim you're making, you start name calling and trying desparately to make fun of their car? You're just a punk. A lying punk. It's okay if I call you names. Know why? I'm not trying to steal your money.

YOU'VE ANSWERED NO QUESTIONS SO FAR, JUST CALLED ME NAMES.

YOU EITHER CAN'T OR WON'T SUPPORT YOUR HP CLAIMS. YOU CAN'T BE TRUSTED AS A RESULT.

NOW, GO RUN AND HIDE LIKE ALL LITTLE PUNKS DO.

Lugnut... go back to the links I sent you... and if you still don't get it... go back again, and again. Your not gonna buy from me as much as I wouldn't sell you to you. Your an idiot and Im sure many a members on this forum have confirmed.

DO NOT REPLY TO THIS, WE'RE ALL IMPRESSED BY YOUR KNOWLEDGE.... YEAH RIGHT!

p.s. I distribute for all the tuner's I mentioned.

I thought you were done with this thread? As I already said, name calling won't scare me away. Whatever you supply to whomever doesn't mean you understand what you're doing or that it's worth paying for. You shouldn't be in this business, IMO. Maybe when we're through people will recognize that and avoid you and your products. Is that what you're trying to accomplish with your foolish behavior?

Do you think no one else is reading this thread and learning how you operate? Do you think other people want to deal with you knowing that if they ask you a question or wonder about a claim you make that you're going to make fun of their car and call them names instead of answering their questions? Maybe I won't buy anything from you... but maybe no one else here will either. You're not dealing with just me.

YOU STILL HAVE NOT AMAZED US WITH YOUR EXPLANATION OF GETTING SOMETHING FROM NOTHING. DID YOU STUDY ELEMENTARY PHYSICS? DO YOU REMEMBER THE CONSERVATION OF ENERGY LAW? CAN YOU APPLY IT TO UNDERDRIVE PULLEYS?

DOES PARASITIC LOSS OF HP MEAN ANYTHING TO YOU? ARE YOU ABLE TO TIE THAT INTO DRIVING THE ACCESSORIES WITH AND WITHOUT AN UNDERDRIVE PULLEY?

CAN YOU PROVE THE INFO IN MY POSTS IS INCORRECT? I CHALLENGE YOU TO DO THAT... AGAIN.

WHAT'S THE MATTER? LET'S HEAR YOUR EXPLANATIONS INSTEAD OF YOUR NAME CALLING SKILLS. WE ALREADY KNOW YOU CAN CALL PEOPLE NAMES WITH THE BEST OF THE NEIGHBORHOOD CHILDREN. LET'S SEE IF YOU KNOW ANYTHING ABOUT CARS.

I just realized you said you "distribute" for all the tuners you mentioned. That explains it to my satisfaction. You don't understand what you're selling, you just sell it. You're a plug-n-play kinda guy.

quote:

Original: jags

... go back to the links I sent you...

I did better than that. I asked RennTech and Brabus to answer the questions in my e-mail below. I got a couple of interesting answers, neither of which support the incredibly arrogant and self-appointed M-B know-it-all and run-of-the-mill name caller, jags, the VW-reject grease monkey. They didn't answer my hp question directly either, though the RennTech guy alluded to it and offered that underdriving accessories can cause problems, which I previously stated and is tied to the hp source.

quote:

Original: Lugnut's E-mail

----- Original Message -----
From: Lugnut
To: bobb@renntechmercedes.com; info@brabus-usa.com
Sent: Sunday, November 27, 2005 11:33 AM
Subject: Under Drive Pulley

I'm considering buying an underdrive pulley for my SL600. Please help settle an argument I'm having.

He says the underdrive pulley adds horsepower, or creates it. If an engine produces 300 hp, he says an underdrive pulley will change it to 315 hp, for example.

I say it transfers existing horsepower that's being used to drive the accessories (power steering, AC, etc) to the rear wheels. It doesn't create horsepower, just makes the engine use existing horsepower in a different way. A 300 hp engine remains a 300 hp engine.

Who's right?

Thanks in advance.

quote:

Original: RennTech Response

This is something that people with the Jap cars use, but not worth it is a MB, plus that you end up running the alternator slower which means it makes less power and than if you have a good stereo you do not have the power.

MB has spent millions in research if to get extra power it was as simple as going to under pulley's they would do it. The newer cars are very sensitive to amps and volts going through the system, underpulley's would effect that and could cause problems.

Save your money.

Bob Brady
Senior Product specialist.

quote:

Original: Brabus Response

Sir,

We don't offer an underdrive pully for the SL600.

Sorry.

So, this jags character will install something that Brabus doesn't sell and RennTech advises against and tell you that it's a gotta have option on $100K M-B cars. Deal with this uninformed clown if you dare. I would stay clear.

There are a lot of vendors and tuners out there that tell the truth about pulleys. Info on pulleys is easy to find. I didn't quote them because I wanted to use sources mentioned by jags.

I had a 94 Mustang with a 5.0......I did change the underdrive pully.... I did get a kick off the get go....nevertheless, no HP's gained. My battery was always low. All the pully did was.........cause problems with power in the long run. Stay away from the smaller pully!!!

I am not 100% certain about the chips. I had got my son a Crossfire and there were alot of debates on that site about the chip. Seemed like in most cases a 10% increase was what everyone was getting. Not being a mechanic I generally buy the horse power I want in a model that is engineered for that specific horsepower.