OCAMG

I recently installed an upgraded ECU and Pulley to my SL55 and the performance and acceleration difference was amazing. Has anyone else experienced the same results or am I imagining it?

vraa

Superchargers benefit quite a lot from lighter / larger diameter pulley upgrades. The ECU may have done it's part as well by altering boost.

JamE55

So how much HP/rwhp are you putting down? Pls post dyno sheet.

thx

OCAMG

I haven't run the numbers on dyno yet. Will let you know once I have.

I started first with the ECU upgrade which was good, 2 weeks later I had the pulley upgrade done and the change was dramatic, it is a huge improvement. It just feels like a different car.

JamE55

^^ Great! Pls keep us posted on your dyno results. Also hopefully you can join us next month. We're having a Benz get together on March 4th at the Pasadena Rosebowl. Pls click here for more details and don't forget to sign up. Should be nice.

HLG600

When modded, vehicles with forced induction stock show very impressive results, since you are increasing boost. Just look at RennTech and their ECU upgrade for the V12TT. Computer alone adds 132 hp and 155 tq.

OCAMG

Has anyone else who's done the same upgrade have similar results?

OCAMG

I got the ECU and Pulley from Oliver at SpeedtuningUSA. Very impressed with the entire experience and honest deal.

ja1031

I had Cory install the pulley, headers. limited slip and reprogram the ECU. The results are not something I'm imagining, the increase in power was beyond my expectations. Rapid acceleration from under 40 mph the car is probably dangerous without the traction control engaged and if it's raining the car stays in the garage for fear of looping out on some freeway onramp. Anyone who has driven an old '94 3.6 Turbo Porsche will know what I mean.
jeff

lkirchner

I did the Renntech ECU, pulley and carbon fiber airbox to my '05 SL55. I have to agree that the acceleration is phenominal. The stock 55 was a great feeling but with the upgrades the low end makes the stock 55 feel sluggish. I am seriously considering the headers and the throttle body. You know what "they" say Boys will be Boys even when you are 63.

Juice it

Any of you guys have these to the track yet? I wonder how these mods translate to actual numbers. I have seen some of the E55's but no SL's yet.

RU_MATRX

Hey OCAMG:

I have the speedtuning USA ECU flash as well. With the new SC overdrive pulley did you have to send in your ECU to Oliver again for an upgraded flash that'll match the characteristics of the new pulley upgrade?

I've heard a quote of around $1800 just for the pulley. Is that right and do you feel it's truly worth it as an upgrade from the ECU alone?

Thanks for your insights!

sporters78

i have taken it to the track once, 12.3 with a bad 60' going again sometime next week. should be in the 11's

sporters78

and 572 hp at the crank

Juice it

What are a few stock times to compare?

lkirchner

What modifications did you have done?

Thanks

ja1031

i HOPE TO TAKE MINE TO THE UPCOMING tEXAS mILE IN gOLIAD. cHECK 'EM OUT AT WWW.TEXASMILE.COM. (whoops) I'll post the slip.
JEFF

sporters78

Headers, ecu, pulley , rolling on 20's

OCAMG

Hi RU_MATRX

The experience with Oliver from speedtuningusa.com was painless. I sent him my existing ECU - 2 days later I received it back, I would have done the pulley upgrade at the same time but he was waiting for new pulleys to come in. This took about 10 days to get.

I now had a chance to test out the car with the ECU by itself and then with the pulley installed. The ECU upgrade by itself wa great but once I added the pulley this was the cherry on top, it was an awesome upgrade and well worth it. The best thing was it was much less expensive than what Kleemann or Renntech, he came highly recommended so I went for it.

Anyway, to answer your question, I feel you may need the updated flash for your ECU. Why don't you call Oliver direct and ask him: 301-421-9464

gregc

please do go to a dyne and have them check the O2 during the run. It is important that the fuel is tuned with the new pulley. You should be 11.5:1 to 11.7:1 air-to-fuel ratio. Anything higher on that engine and you may need to send back and have the code tuned just a little.

If its lower than 11.5:1 you OK. BUT, anything lower than say 10.8:1 is running too rich on fuel.


Good luck.

IngenereAMG

I just have speedtuning's ECU upgrade........and the car has done 202 in the desert and a 1:48 at Laguna Seca.

gregc

that still does not say what the air to fuel is running at. I guess money and a car's health is not an issue. Trust me, have it checked to be safe.

You could be running great, then to about to blow the motor.

A dyno with A/F reading is a simple thing, what $100.00

AMG2GO

How much is the speedtuning setup?

jonnyml500

Hi Greg, do these #'s also apply to SL500's? I just chipped my car and will be getting the pully upgrade next week. I will get it dynoed and check the O2 since you wrote this.

Want to make sure that my car lastest a long time.

IngenereAMG

I paid about $350 for the ECU flash