taylorg

So here's the story,
Earlier I was looking at different tuning companies who offered packages for my M113k motor. I came to the conclusion that the best bang for your buck is eurocharged. As a reference I was comparing the numbers to my dad's sl65 and it seems that I could get pretty close to his horsepower rating for under 2k. Then it occurred to me that my car could already have a tune and/or pulley.. It keeps up pretty well with the sl65 and smoked my mom's s600. What I'm asking is if there's any way to tell if I have a tune and/or pulley?? The dealer I bought the car from said that it had mods, but I never got a straight answer on what. Just FYI the car is a 2003 s55. I'm pretty active on the benzworld forum, but nobody messes with the m113k engines as much as you guys on the e55 mbworld forum (which is why I'm posting over here). Any help or tips would be great! Thanks

taylorg

Other reason why I think it could have a pulley is because when I got the car, the s/c bearing was blown, the shear pins were sheared off, and the s/c bypass valve stripped the internal plastic gears for the actuator.

Zod

why guess when you can get it dynoed and know the truth

DAGREEKNYC

in park hit the gas and if the motor revs past 3-4 K without giving you a dead pedal then the car is tuned . un tuned cars dont let you rev past that point in park .

e55amgrocket

Post a picture of the pulley and engine

Ronan Mc Cabe

My RENNtech tune does not allow me past 4.2ishKRPM

GT-ER

My EC tuned car doesn't either.

GT-ER

This.

SterlingE55

There's two rings on the crack pulley. One for accessories (alternator, power steering, etc) One for the supercharger. If the outer one for the supercharger is much larger than the inner one congratulations you have an aftermarket pulley. Post pics as well.

loungn14

shoot me a vin and I can tell ya if we tuned it...

like everyone else said, post up a pic of the pulley and we can tell ya if its aftermarket...

cahiil55k

What model year is your mom's S600? Pictures or a well-lit video of your pulley, headers, and heat exhanger would help. If you're really in a hurry to know, find an open stretch of road and see if you can hit 160 but be safe - I don't recommend this for a new guy though.

I'm tuned and still can not rev past 4K in park.

taylorg

Alright, first off, thanks guys.. I was not expecting this kind of support. The vin is WDBNG74J03A362517. My mom's car is the bi-turbo 2003 (and yes, the coil packs were done). Attached are some pics of my pulley and my passenger bank header (the driver's wasn't that visible..) From what you guys are telling me, the pulley is stock

The part number on the supercharger is: 155 090 04 80















Just kidding

The actual part number is:A 113 090 02 80
And the throttle body is : A 113 141 06 25

CLKCLK

It's a stock pulley and stock header!

Now, if you were able to hang around with your dad's sl65, then after mods his will hardly hang around with yours

taylorg

Well, thanks everyone.. Now I need one haha - anyone have one for sale?

taylorg

Other thing is, I'm located in the Milwaukee area and have a star sdconnect setup..

taylorg

0-60 the sl65 isn't much faster.. Both cars are very traction challanged. I have 285's on and he has 295's but with my car weighing more we have similar traction. On the interstate I wouldn't stand a chance!

Das Geld 2

WHAT'S

SLR M155K MAPPING?

taylorg

It's where you change all of the ECU's behaviors, settings, fuel maps, boost control, etc from M 113K E55 AMG to M 155K E55 AMG.. One of the most noticable changes (other than the huge increase in power) is that the supercharger engages based on throttle regardless of rpms. For example if I'm at a red light and I give it half throttle, even below 1k rpm's you can hear (and see if you're looking) the supercharger whine. With that, I have NEVER encountered any of the belt chirp or slipping that so many of you guys are talking about. Also, I changed the torque limitations to the SLR's 295 wide rear tire.

Of course, most of the other control units must be changed with star otherwise you get errors.

I searched and searched for something talking about this on google, but can't find anything. As far as I know, I'm the only one who knows about this.

The other thing is, on my brother's 2006 S500, I can enable the cylinder shutdown feature that was on the 99-02 S600's.

loungn14

you might wanna be careful doing stuff like that bud...

taylorg

We haven't been brave enough to do the cylinder shutdown.. but changing his octane and fuel map to a n/a m113 5.5l gave him more power.

When you say "stuff like that" what exactly are you talking about?

BlkE55K

There's probably a reason no one else has done this. Many people here have star as well so it's not like people haven't seen all the settings. I'd get the car on a dyno and measure AFRs if I were you. Also, you should check the duty cycles on the injectors with the changed mappings. You don't want to see a cylinder 8 failure.

Also, the fact that you can't even tell if your car is modded even by the clearly stock headers and crank pulley probably tells me that you know less about your car than you think.

There's plenty of good info here. Use it to your advantage and mod right. A tune isn't that expensive and can be adjusted (properly) with each level of mod you have.

Good luck!

taylorg

Actually, I know my car pretty well. I just don't know mods for these cars very well. And as for mods, I've read many topics about people blowing their engines with pulleys, headers, throttle bodies, etc. but never with going from a MB 113k tune to a MB 155k tune. I have the money, and could tune my car right now if I wanted, but all the blown engines scare me. Even if people running a pulley and tune don't have any problems now, who knows what might happen 10-50k miles from then... I'm just saying, with a tune and pulley you might be making stock 65 power, but the engines will probably not last as long as a stock 65. I might as well leave my car stock and if I want more power, go with an s65.

BlkE55K

Like I said, check AFRs and injector duty cycles. If you're really using an SLR tune, your stock internals, which are different than an SLR, may not support it. You said yourself that you don't know mods for your car very well. This statement alone tells me that you didn't think the tune mod through very well.

Believe me when I say that the way your car is now, tuned and untested, is more likely to crap out cyl-8 or something else than a proven tune from Kleeman, OE or EC.