SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: why doesnt the super charger whine

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Old 11-20-2013, 10:03 AM
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2003 sl55,03 ford taurus
why doesnt the super charger whine

I just had a e/c tune that took the boost from 11 to15psi. shouldn't I @ least hear the s/c whine some?
Old 11-20-2013, 10:09 AM
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the air box muffles a lot of sound of the SC
Old 11-20-2013, 10:50 AM
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Drove mine without an intake once for a short run to compare boost levels and had virtually no whine at 12.5lb of boost.

How is the car running?
Old 11-20-2013, 12:54 PM
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time to get a smaller sc pulley to spin the blower faster
Old 11-20-2013, 09:07 PM
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Can an ECU tune raise boost on a supercharged car? I thought you had to increase the size of your engine pulley or decrease the size of your supercharger pulley?
Old 11-20-2013, 09:18 PM
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Originally Posted by shardul
time to get a smaller sc pulley to spin the blower faster

Already running your clutched pulley Shar.. 168 on the crank. I've got the BIG tb and long tubes, have a 185 begging to go on.
Old 11-21-2013, 03:02 AM
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sorry it took me so long to reply. I have an 83mm s/c pully. was thinking about getting a 180 crank pully. at what point should I get the 550 injectors and a trunk tank system? I already have a small front tank and a Johnson pump and h/e
Old 11-21-2013, 03:13 AM
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where r u rawamg?
Old 11-21-2013, 07:15 AM
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I doesn't whine because it is designed to not whine. It is a mercedes, not a gt500.
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Old 11-21-2013, 10:46 AM
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you will need injectors if you get the 180mm crank pulley

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