W211 AMG Discuss the W211 AMG's such as the E55 and the E63

IAT - 175/180mm pulley vs 168

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Old Apr 9, 2011 | 08:41 PM
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E55
IAT - 175/180mm pulley vs 168

Has anyone moved from a 175/180 pulley to 168 mm and recorded the IAT changes ?

I have added upgraded HE with meander pump and still constantly breaching the 140f threshold causing fuel dumping at about 4800 rpm and losing power at the top end. Was considering sizing pulley to 168 and maybe getting more power.
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Old Apr 9, 2011 | 08:52 PM
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From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
i dunno but should be drastic... my friend had a 180 and it would shut down ALL the time until he upgraded his HE and pump
I have a 168 and never shut down with repeated runs in the Vegas summer - my HE and pump were stock at that time.
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Old Apr 9, 2011 | 09:57 PM
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I go over 140 all the time with the 180mm...but then again I went over 140 with the oem pulley as well on the stock H/E.
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Old Apr 9, 2011 | 11:25 PM
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Done many things to reduce intake temp but the only thing I cannot mod is the local weather!

Just wanted to see if someone that has made the change can share the info. All I need is for the temp to fall another 8-10C ,I think it will be good
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Old Apr 9, 2011 | 11:32 PM
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Done many things to reduce intake temp but the only thing I cannot mod is the local weather!

Just wanted to see if someone that has made the change can share the info. All I need is for the temp to fall another 8-10C ,I think it will be good
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Old Apr 10, 2011 | 02:41 AM
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CLS55 2006, CLS 63S 2015
Originally Posted by Brave7012
Done many things to reduce intake temp but the only thing I cannot mod is the local weather!

Just wanted to see if someone that has made the change can share the info. All I need is for the temp to fall another 8-10C ,I think it will be good
For sure it will. I made a post a few years back on AIT of the 168 with tables. You will have to search for it
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