SC Clutch Problem?
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Joined: Feb 2010
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From: Loveland, OH
2019 S63, 2006 CLS 55, 2005 Infiniti QX56, 1994 Softail Springer
SC Clutch Problem?
Has anyone had a super charger clutch go bad? If so, can you describe what you experienced? I have a major power loss. My dyno looks like a normally aspirated V8 engine. My IC pump is testing out fine and the IATs are normal for stock. I'm at the point where I don't know where else to turn. Any and all advice/input is much appreciated.
Thread Starter
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Joined: Feb 2010
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From: Loveland, OH
2019 S63, 2006 CLS 55, 2005 Infiniti QX56, 1994 Softail Springer
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From: Houston
2003 W211 E55, 2003 W220 S600
yes look for MAP reading. It will be very high since the barometric pressure is added. You will have the subtract that from the reading to get the boost.
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From: Loveland, OH
2019 S63, 2006 CLS 55, 2005 Infiniti QX56, 1994 Softail Springer
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From: DownEast Maine
CLS 55 AMG E500 ML320
Looks like IAT's are too high. Check your pump again. Also if you're logging through OBD port, no more than 2 at a time. If that is wideband then never mind.
Timing starts backing off at 95*F. Supercharger shuts down around 150 something.
Timing starts backing off at 95*F. Supercharger shuts down around 150 something.
Thread Starter
Member
Joined: Feb 2010
Posts: 162
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From: Loveland, OH
2019 S63, 2006 CLS 55, 2005 Infiniti QX56, 1994 Softail Springer
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From: South Africa
2018 E63s AMG (Current) 2011 CL63 AMG (Sold) 2005 CLS55 AMG (Sold) 2004 C32 AMG (Sold)
Mate I am tagging along for this one. I have the same issue. I had a bosch 010 pump on before and replaced it thinking the pump was bad with a new 010 pump. Was told to bleed the system, did that with a mate however has made no difference.. Have given up on the issue. Cruising around iat temps are fine then do one run and iat's get crazy hot.. Have put the car on dyno twice but it's no use. Get pathetic numbers as ecu just shuts things down with the high temps. Am interested to see if you get yours right.
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From: Central Pennsylvania
1994 S420 RIP (2/8/13), 06 CLS55, 02 ML55, 94 TT Supra, 89 Maserati 228, 911 Porsche Carerra
I'd look for a bad pump. If the temps are fine "around town" but one run makes it crazy hot then the pump is failing. Sometimes brand new pumps will fail. Remember it's not necessarily an electrical failure but a pump ( impeller ) failure. While both are bolted together they are two distinct mechanisms. Check the cfm as that is a truer indicator but it requires knowing the number and then removing the pump and testing it using water and a bucket. Good luck.
Thread Starter
Member
Joined: Feb 2010
Posts: 162
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From: Loveland, OH
2019 S63, 2006 CLS 55, 2005 Infiniti QX56, 1994 Softail Springer
Mate I am tagging along for this one. I have the same issue. I had a bosch 010 pump on before and replaced it thinking the pump was bad with a new 010 pump. Was told to bleed the system, did that with a mate however has made no difference.. Have given up on the issue. Cruising around iat temps are fine then do one run and iat's get crazy hot.. Have put the car on dyno twice but it's no use. Get pathetic numbers as ecu just shuts things down with the high temps. Am interested to see if you get yours right.
Thread Starter
Member
Joined: Feb 2010
Posts: 162
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From: Loveland, OH
2019 S63, 2006 CLS 55, 2005 Infiniti QX56, 1994 Softail Springer
OK, replaced the SC clutch and the IC pump. There seems to be an increase in power. Interestingly, the ambient temps have fallen off with the fall weather so it is impossible to know for sure what the real fix might have been (if there was a fix). I will have it on the dyno again on Monday and post the results.
