W211 AMG Discuss the W211 AMG's such as the E55 and the E63
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S/C pulley vs. Crank pulley

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Old 11-02-2015, 08:09 AM
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W211 E55
S/C pulley vs. Crank pulley

Looking for input from the veterans or anyone that has experience with both.
Does the 83mm make as much power ad a 168mm?
Is the clutched 77mm making as much as a 180mm?
Cost aside, just actual gains.
Old 11-02-2015, 08:34 AM
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Search the forum for failed supercharger pulleys before making your decision. In terms of power, the supercharger is mechanically driven and the speed can be calculated using a formula.
Old 11-02-2015, 08:58 AM
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It really depends on what kind of power u want and cost of install. To answer your questions the 83mm produces alittle less than the 168 crank. But it also generates a lot less heat than others. The 77cluched and 180 are pretty much the same. They both generate a lot of heat. With stock cooling you will heatsoak.

Do a google search on both. There is enough info out there to keep you reading for weeks.
Old 11-02-2015, 11:52 AM
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CP makes more tq than sc pulley no?
Old 11-02-2015, 06:12 PM
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Originally Posted by dchl21
CP makes more tq than sc pulley no?
It was always that way. But after looking at dynos for the cluched 77 I'm not so sure. Seems pretty even to me.
Old 11-02-2015, 06:20 PM
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W211 E55
Oh okay so they are pretty even. I have a 83mm now and debating whether to use a 168 my cousin never used or to just use a 77mm

Last edited by Jdm2Gdm; 11-02-2015 at 06:24 PM.
Old 11-02-2015, 07:44 PM
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'06 E55 AMG
The "83" is closer to 84mm, if you're trying to compare to a 168 CP in terms of boost.

It's blower RPM, not upper vs lower pulley.

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