Tranny not built for track abuse :( and a questions on brakes
07-12-2011, 10:57 PM
#26
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2014 Audi RS7
You may also consider the DTM bumper because it has larger openings. I know HHughes1 had trouble at Sebring with the heat and limp modes prior to installing his new front bumper. It's been okay since.
Engine temp effects the tranny temps. When your tranny went into limp mode check your engine temps. The heat transfers between the two.
Larger coolers will help though.
Engine temp effects the tranny temps. When your tranny went into limp mode check your engine temps. The heat transfers between the two.
Larger coolers will help though.
07-12-2011, 11:16 PM
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'14 911S (garage queen) '13 X3 (family hauler)
07-13-2011, 12:36 AM
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AMG GTBS, AMG GTR Pro, AMG GT, C63 AMG, Porsche Panamera 4S, RX-7 FC Turbo II
When I read these post it makes me scratch my head. I want to swear that AMG tested the motor in a ew geographic location representing extreme weather/altitude/temps.
Didn't they tested the car on the mojabe desert, then South Africa, Nurburgring, Sweeden and places like that?
I also seen a few videos of members here posting their cars on road courses and no issues, maybe someone can elaborate more...
Didn't they tested the car on the mojabe desert, then South Africa, Nurburgring, Sweeden and places like that?
I also seen a few videos of members here posting their cars on road courses and no issues, maybe someone can elaborate more...
What is described as limp mode comes from engine overheating. A loss of power and into safe mode. I experienced that at the Homestead AMG Challenge a few years ago in a CLS63. Thought I broke the car, until the AMG guys explained the situation.
07-13-2012, 01:02 PM
#33
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High Track temps
Evosport engineering has the fix as it's not the transmission thats overheating but the engine oil sensor. Without going in to technical details I'll try and summarize what I've learned.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
07-13-2012, 01:47 PM
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C63 AMG Coupe
Evosport engineering has the fix as it's not the transmission thats overheating but the engine oil sensor. Without going in to technical details I'll try and summarize what I've learned.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
One interesting thing is that the oil and coolant temps are not the same at cold start up (as displayed on the instruments). After the car has been sitting for a while, I would think that both would indicate the same temperature.
Last edited by Serge944; 07-13-2012 at 01:51 PM.
07-13-2012, 02:18 PM
#35
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Oil temperature and emissions systems are not related. There is more to it that this...
One interesting thing is that the oil and coolant temps are not the same at cold start up (as displayed on the instruments). After the car has been sitting for a while, I would think that both would indicate the same temperature.
One interesting thing is that the oil and coolant temps are not the same at cold start up (as displayed on the instruments). After the car has been sitting for a while, I would think that both would indicate the same temperature.
07-13-2012, 02:58 PM
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2009 C63, 2000 ML 430, 1994 Del Sol Vtec
Luckily at buttonwillow there is really only 1 place you could possibly hit the wall. That would be the last turn (when going CW) going two of on exit trying to save the car. Everywhere else is just dirt.
Joking aside, I did read that the TC causes the clutch plates in the tranny to slip trying to decrease power for traction reasons; thus overheating the tranny when activated too often. I haven't tracked my C63 yet to confirm.
07-13-2012, 09:35 PM
#41
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Evosport engineering has the fix as it's not the transmission thats overheating but the engine oil sensor. Without going in to technical details I'll try and summarize what I've learned.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
Didn't you give Evosport a large sum of money to keep the company from bankruptcy? Hows that working out
07-13-2012, 10:44 PM
#42
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AMG GTBS, AMG GTR Pro, AMG GT, C63 AMG, Porsche Panamera 4S, RX-7 FC Turbo II
Evosport engineering has the fix as it's not the transmission thats overheating but the engine oil sensor. Without going in to technical details I'll try and summarize what I've learned.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
The emission design requires a fast up to temp to light off the cats. In order to do that the engine oil sensor bypasses the engine oil cooler until it reaches temp to achieve the desired emission calibration. However when that temp is reached too quickly (track use) it's too high and doesn't go through the cooler and goes into limp mode. The ecu goes into protection mode and causes the tranny to do the same.
The replacmetnt part is pretty inexpensive but installing it is a bear. Installing a new oil pressure sensor will not fix the problem.
07-15-2012, 01:02 PM
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CLK BS
07-15-2012, 01:22 PM
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CLK BS
Oil temperature and emissions systems are not related. There is more to it that this...
One interesting thing is that the oil and coolant temps are not the same at cold start up (as displayed on the instruments). After the car has been sitting for a while, I would think that both would indicate the same temperature.
One interesting thing is that the oil and coolant temps are not the same at cold start up (as displayed on the instruments). After the car has been sitting for a while, I would think that both would indicate the same temperature.
The difference is that the secondary oil cooling in the C63's is under engineered. Same M156 as the BS……but obviously different cooling arrangement. I just tested a C63 BS in 98 degree temps…..and we PUSHED it. The car didnt skip a beat. If you are going to track your C63……you'll need to augment at least your engine oil cooling capacity. As far as understanding how oil cooling in the M156 works……watch this. https://vimeo.com/43979870
These guys understand the animal.
07-15-2012, 01:48 PM
#45
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Your question is OT, but no response gives some the impression it has some truth which recreates a conundrum if I do respond with the typical back and forth. I'll give you the Cliff notes and stop there.
Evosport started a major expansion just prior to the recession and was looking for capital to grow and move from the tuner ranks to an engineering, design, fabrication and development company for Mercedes, BMW, Ferrari and McLaren.
Evosport ENGINEERING is the focus of the investment group securing capital which is a pretty standard thing to do in business in our capitalist society. The recession hit the performance products area very hard and some other engineering companies (HKS, and General Motors who you might have heard of) declared bankruptcy and some secured government bailouts with your money.
We've hired 21 professionals, including engineers, PHD scientist, technicians and fabricators in developing the Evosport Engineering.
I'm one of many investors in this venture and to suggest I bailed them out of bankruptcy is false, misleading and libelous.
Evosport Engineering is the first company to run the M156 and M159 engines on a stand alone management system which required cracking the Siemens codes that AMG said couldn't be done. Evosport Engineering has the capability to due wind tunnel testing and modeling.
So to answer your question how's it working out, check Evosport out on Face book or check out Wikerbill's post.
