Boost curve very wavy, graph inside, opinions welcome
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e55-03 , m3 e36 irs drag car
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'06 E55 AMG
What Hulk said.
Also, put the front engine cover on (the part with the star logo that falls off) and make some WOT runs. Check the bottom of the cover for a trail of belt dust. Telltale sign the spring is weak.
Also, put the front engine cover on (the part with the star logo that falls off) and make some WOT runs. Check the bottom of the cover for a trail of belt dust. Telltale sign the spring is weak.
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From: USA
'06 E55 AMG
A "decent amount of dust" on the underside of the cover is belt slip. It won't necessarily squeal. If you happen to be reading boost though the OBDII port, the data rate can be slow enough to miss the "dips" in boost. The BWK is not a band-aid for a failing tensioner. For reference, I have the 84mm pulley and zero belt dust on the cover.
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From: South Africa
2018 E63s AMG (Current) 2011 CL63 AMG (Sold) 2005 CLS55 AMG (Sold) 2004 C32 AMG (Sold)
This is very interesting. So should a normal everything perfect in the motor boost curve should be linear, let's say starting at 5psi and then builds up to 12psi at redline as the motor spins up... My boost definitely is up and down on the way to max. Any one that can share a nice curve of how it should be?
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A Merc
How are you measuring? If its obd then you can not have other parameters at the same time because the refresh rate will be too slow. Also if it's going up and down by 1-2 pounds that's not good but if it's .1 or .2 that's ok
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From: Joshua, TX
2004 AMG E55
This is very interesting. So should a normal everything perfect in the motor boost curve should be linear, let's say starting at 5psi and then builds up to 12psi at redline as the motor spins up... My boost definitely is up and down on the way to max. Any one that can share a nice curve of how it should be?
On centrifugal superchargers you will see boost rise with RPM. They will start low and go up with RPM. Boost curve goes from low to high in an increasing manor.
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From: Joshua, TX
2004 AMG E55
It depends on your sampling rate. I would go with the one that has a higher rate. Dyno operator should know how often they are sampling. Where did they get the signal from?
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From: Joshua, TX
2004 AMG E55
If you can get the Dyno file into excel you can plot your Data against it and see. Plot against rpm.
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From: Sweden
E55 AMG V8 Kompressor 2004 E 55 AMG Type: 5,439 cc (5.439 L; 331.9 cu in) Supercharged V8 Powe
What you use for obd to meassure boost then?
Torque DashCommand does these work I mean are they trust worthy monitoring boost?
Torque DashCommand does these work I mean are they trust worthy monitoring boost?
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From: Sweden
E55 AMG V8 Kompressor 2004 E 55 AMG Type: 5,439 cc (5.439 L; 331.9 cu in) Supercharged V8 Powe
Thank you will remember that.
The Zeitronix boost sensor sound interesting and thread aswell.
Super thanks will remember that 2 parameters
The Zeitronix boost sensor sound interesting and thread aswell.
Super thanks will remember that 2 parameters
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From: Sweden
E55 AMG V8 Kompressor 2004 E 55 AMG Type: 5,439 cc (5.439 L; 331.9 cu in) Supercharged V8 Powe
Is that the same?
There is a lot of good stuff boost can be adjusted
https://torque-bhp.com/wiki/Boost_Adjustment
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From: Florida
2002 CLK 55 AMG cabriolet Eurocharged
Hulk is stating, (Do not utilize any extra resolution from the CAN bus of the car).
It will slow down the actual Fr (resonant frequency) degrading bus speed and performance.
I think an AEM Wideband with a piggy back input would be more desirable.
Thoughts, Gator
It will slow down the actual Fr (resonant frequency) degrading bus speed and performance.
I think an AEM Wideband with a piggy back input would be more desirable.
Thoughts, Gator
