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whats wrong with my SL65???

 
Old 11-09-2009, 03:51 AM
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whats wrong with my SL65???

i just dyno my 07 SL65 with only 9k miles on it and i only got 464rwhp on dynojet. what is wrong with it??? is it normal?? the only thing i did to the car is removed the mufflers and put in a straight pipe. also the tech couldn't get a RPM signal from my car so i could get tq reading. how do you get the RPM signal from the car??? first pull was 463HP is 3rd gear then 446HP in second gear then 464HP on forth gear. i can't imagen lost of 140HP in the drivetrain.
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Old 11-09-2009, 04:56 AM
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2003 SL55 AMG
I was the guy with the SL55 that was next in line. I think the biggest problem was that they couldn't get your car into dyno mode. The couldn't get mine to do it either. Do a search here to figure out how to do it. I finally figured out mine, but since it's an '03 it's slightly different. Mine dyno'd 384hp to the wheels, and then lost 10-15hp each pull afterwards. This leads me to believe that my IC pump still isn't working. Let me know if you get it back on a dyno again. I'm curious as to what that beast actually puts to the ground when the ESP isn't holding it back.
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Old 11-09-2009, 10:33 AM
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Check the IC pump. Tach pick up is unfortunately under the airbox so you can't get to it.
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Old 11-12-2009, 11:36 PM
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after thinking about it i know why my car dyno those number. the ic pump radiator is on the side and the vent for it is near the fog light. i don't remember the dyno tech face the blowers in there. i'm going back sometime next week to re-dyno it with the blower blowing in that side vent. there must be some way to get a tach reading without ripping open the airbox. sucks with out RPM reading
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Old 11-19-2009, 02:28 AM
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2003 SL55 AMG
Keep us updated on the numbers. BTW, where did you have the resonators removed at? It looked to me like they did a good job and I was thinking about getting that done on my 55.
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Old 11-19-2009, 12:52 PM
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You need some three-n-one oil on the Fetzer valve, that should do the trick!

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Old 11-20-2009, 02:25 PM
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Careful, I think you are referring to the oil-cooler behind the passenger side fog light.

On the SL65, the IC heat exchanger is in front of the radiator.


Originally Posted by sl65hawaii View Post
after thinking about it i know why my car dyno those number. the ic pump radiator is on the side and the vent for it is near the fog light. i don't remember the dyno tech face the blowers in there. i'm going back sometime next week to re-dyno it with the blower blowing in that side vent. there must be some way to get a tach reading without ripping open the airbox. sucks with out RPM reading
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Old 12-09-2009, 06:16 PM
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wooohooo!!!! went back yesterday and pulled 522RWHP. I wasn't in dynomode when i did it the first time.
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