Mirza210

Hello Guys!

Im from Europe, my Brother owns a E500/E550 2006 Model Year. Its a great Car and has already some Beauty Upgrades like AMG Steering Wheel, AMG Speedometer, AMG Design and AMG Mufflers and the sound comes near to the real AMGs.

So now after three months riding it already 4000miles and some "Races" i want to add some extra Horses under the Hood. I have heard that Kleemann offers some Modifications like ECU Upgrades and Header Kits. So my Question is will the engine last long the same as without the Modifications?

And does anyone from here already done or knew some other Sources?


Greetings and sorry for my Bad English!

Speedriven1

Reliability with just a tune- especially from an established shop like Kleemann- is going to be very close to stock. Say, 90% or better.

AMGAffalterbach

You will wear things faster the more horsepower you make, and I'm not sure the benefit is really there for a naturally aspirated engine to spend so much money on tune, headers, cams, etc when you could just buy an E55, but I agree with Speedriven, even as a non-tuner or sponsor, I'd feel comfortable saying these engines are very stout and robust and will probably not experience much higher failure rates with just a tune.

Mirza210

Thanks guys!

I also would know if the E63 Intercooler would fit or any other to the E550?

cmriv

What exactly are you trying to cool with a N/A motor????

AMGAffalterbach

^Right. Mirza, the W211 E550 doesn't have an intercooler as it is not forced induction of any kind (supercharger or turbocharger), the W211 E63 is also naturally aspirated. The W212 E550/E63 as well as the W211 E55 have heat exchangers (air to water) but that's about it. Intercoolers are used to cool the charge air coming from the compressor side of a turbocharger or cool a charge from a supercharger.

Mackhack

I'll send you a PM.

If you want E55 power, buy an E55. It's worthless to put money into a non supercharged engine. You will never get your money's worth in terms of $$$/power ratio.

AMGAffalterbach

So true...

cmriv

I wouldn't exactly say it's worthless if you have the money. I'm sure there are some N/A M273 engines putting 450hp to the wheels, same as a stock M156 non P package motor, question is how much money are you willing to spend. You could easily upgrade your heads, internals and other modifications to get power out of these motors. But as the saying goes, you gotta pay to play.

I like E55's, but is it possible to find one that doesn't have collapsed engine suspension components, loose ball joints, leaking thrust arms, and a burnt supercharger pulley??? At a reasonable price??? Not that i'm aware of. So i understand people trying to upgrade their N/A motors. E55's are every where for cheap now but the key word in this sentence is cheap, and when somethings cheap/used 9 times out of 10 it's been ragged on. I paid 16.9k out the door form my 2wd 550 and honestly have no problem whatsoever over time investing 10k worth of parts into the engine/drivetrain over time to make it faster, to each their own. If i bought a E55 i would of probably spent more money, higher mileage, and still woulda had to spend mad dough to get it to pass inspection and not have issues. There's a reason the 55's are so cheap, they need alot of work is the main reason.

edit, on another note, explain to me why a S/C E55 can be had for under 20k$ but a older 2002/2003 E39 M5 with low decent mileage is still 25-55K$? Hmmmmmm

AMGAffalterbach

I don't think anyone is getting an M273 to 450whp, maybe 450 at the crank but that's pushing it and you would have to be right at sea level. It is very possible to get an E55 at a reasonable price, friend spent 22k on one with 60,000 miles and it is one owner, clean. They both have airmatic issues too so that's the main expense on this car.

cmriv

tune, bigger injectors, re-built heads with titanium components, colder plugs, pistons, rods, crank, cams, flywheel, throttle body, intake, straight pipe with no back pressure ect ect...... money talks. all of this stuff will surely get you 100 hp. stock m273 hp to the wheels is 330 or so. I'm sure a complete engine overhaul with well known performance compaines can squeeze 120 hp or so more out of these stout motors.... To bad i can't afford all of that though!

Mackhack

All true but one thing not to forget. An E55 is a symbol/art (not if status) of engineering. There were only so many build. For me the E55 is the ultimate car. Sound, options, power. It's almost like a BMW K1200 motorcycle. In any gear you floor it and there she goes. No obstacle is too big for the car. With the E320 came a reliable car into the garage. With the E55 came a dream into the garage. If you take this into consideration not too many people can say they are driving one.

With an E55 there are no opponents, only victims

NthDegree

iTrader: (-1)

Injectors, spark plugs, pistons, flywheel and rods won't give you anymore power. Their supporting mods. Also you don't want a complete straight piped exhaust with no back pressure all that would do is cause you to lose low end torque.

cmriv

I'm just figuring if Hendrick/Joe Gibbs Racing/Penske can squeeze 750-900hp out of a small block 358ci motor I'm sure a 333ci mercedes benz block is well capable of 450whp +.... Just my two cents though....

Touche' on the back pressure. I was unaware that this could potentially be a/his daily driver. If that is the case back pressure is a necessity.

Mackhack

Difference is that race car engines end up on the junk yard after each race and font need to last for 400k miles.

a100steaksauce

So much potential in the m273 motor.

I'd love a better aftermarket intake and mid length, shorty headers (affordable).

AMGAffalterbach

Intakes don't do anything for this engine. Look at the surface area of the stock intake and realize how unrestrictive it really is. It's also as cold air as you can get so intakes won't do much. E55 guys on the M113k summed up that argument a long time ago.

Cmriv, NthDegree is totally correct. Most of those mods won't give you power and make NO sense on this engine when you could buy a biturbo E550 and make way more power stock. Those mods are good supporting mods for forced induction or as someone mentioned in racing applications, but the M273 isn't a good tuning platform simply because it's a naturally aspirated V8 with a very limited aftermarket... Your money is better spent elsewhere. Very poor hp/dollar. Not to say this isn't a very stout and technologically advanced engine, because it is and I love it. You would only do colder plugs if you were forced induction and running way above spec power wise, the crank is already forged, so are the connecting rods on the M273. Pistons would only change if you bored out the engine or wanted to change it's effective compression or again run a blower (none available for the M273, one was prototyped by Kleemann I believe but never put into production). As for straight pipe you will lose so much torque, not because back pressure is required (because it really only exists in the manifold in the way you're thinking of as far as restriction anyway), but because of exhaust scavenging. A 3" straight pipe will actually evacuate exhaust gases slower than stock because of bernoullis principle, it acts under the same laws as any fluid, for the exhaust is created in pulses with high and low pressure zones that consecutively help "pull" the exhaust out at a faster rate. Not to mention with less surface area it will inherently evacuate at a higher velocity. This myth is perpetuated by turbocharged cars that may benefit from less restrictive exhaust as turbochargers act like low pass filters on these exhaust pulses as they are recycled to spin a turbine/compressor, so by having a less restrictive downpipe and exhaust, the turbo can spin more freely and spool faster.

Things like headers, cams, tune, and less restrictive catalysts are your only power makers. Hence if you look at Kleemanns tuning packages that's all they offer and it makes like ~460 crank at sea level.

a100steaksauce

the intake looks very restrictive to me. The e55 guys resolved whatever argument for that motor not mine.

AMGAffalterbach

Well if you do end up getting aftermarket intakes, if you have the ability to dyno (I know this is ridiculous considering you'd have to have a control without a tune and after without a tune) for cheap let us know the difference.

a100steaksauce

I guess I won't be checking back. Nothing for this car is cheap.

But like I said an intake, headers, exhaust and tune would be ideal.