72mm s/c or 180mm crank pulley
Thread Starter
Senior Member
Joined: Mar 2014
Posts: 404
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From: San diego cali
05 e55 amg
72mm s/c or 180mm crank pulley
what is up fellas ...ok so I'm having a hard time choosing between 72mm sc or 180mm crank pulley ,will it be a diffrance if I switch out my 83 for 72 ?..what do you guys think would run best with my set up ??or perhaps run my 83mm sc and a 172mm crank ?if you guys can please let me know .if any with same mods please chime in thanks
My set up is
83mm sc pulley (should I replace with 72?)
Kleemann headers
FTP HE
0010 ic pump
Colder sparks
Split cooling
No mufflers no cats
EC tune to support mods .
My set up is
83mm sc pulley (should I replace with 72?)
Kleemann headers
FTP HE
0010 ic pump
Colder sparks
Split cooling
No mufflers no cats
EC tune to support mods .
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Joined: Jul 2009
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From: toronto
Gallado Spyder / AMG C63S / Cayenne
poor install it might fall off and chew up your keyway.
never had a sc pulley but I know 180cp pulls like a beast.
If you decide to go with a 180 cp and want a weistec one let me know within 2 days. I bought one and was going to send back to seller but shipping is a ton.
Thread Starter
Senior Member
Joined: Mar 2014
Posts: 404
Likes: 0
From: San diego cali
05 e55 amg
poor install it might fall off and chew up your keyway.
never had a sc pulley but I know 180cp pulls like a beast.
How much you letting that cp go for ?? Any pics ?? Message me with more info if you like
If you decide to go with a 180 cp and want a weistec one let me know within 2 days. I bought one and was going to send back to seller but shipping is a ton.
never had a sc pulley but I know 180cp pulls like a beast.
How much you letting that cp go for ?? Any pics ?? Message me with more info if you like
If you decide to go with a 180 cp and want a weistec one let me know within 2 days. I bought one and was going to send back to seller but shipping is a ton.
MBWorld Fanatic!
Joined: Nov 2008
Posts: 1,916
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From: Northern VA
2006 E55
Not being argumentative, just curious.
The cp adds weight and wait (as in for boost as the engines winds up the heavy crank pulley). When it hits though
.Given the issues some (not me, I'm on year 6 w RT 178 cp
have had with install and the ease of the sc pulley swap, if I did it now I probably would add a sc pulley instead.
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Joined: Jan 2005
Posts: 4,276
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From: Bay Area
2015 E63S, 2018 E63S
I'm a believer that the sc pulley will build up heat faster due to the sc spinning faster all the time where with a crankshaft pulley you can learn how to drive around town without engaging the supercharger which will reduce supercharger heat.
Last edited by Hammer Down; May 9, 2015 at 05:08 PM.
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MBWorld Fanatic!
Joined: Dec 2014
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From: Indianapolis
2004 E55.98 SS Camaro.Jetta TDI. Expedition
Well the 72 will produce higher boost and heat. A 77 is equal to a 180. A 72 will be in the ballpark of a 190mm crank pulley. Personally I would go with a 77mm clutched. Fixed pulley can cause headaches for some people.
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How much do you want for it?
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Joined: Jun 2013
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From: 'Merica
'04 E55 (Gone but not forgotten), '13 C63 P31 (RIP), another '13 C63 PP
Wait, how does a crank pulley not generate as much heat or spin the SC as fast? Isn't the point of either to spin the kompressor faster to get more boost?
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Joined: Jul 2014
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2005 e55 AMG
Any time the blower spins faster regardless of what pulley is where...it will produce more heat.I think every one gets a little crazy with the heat issue. On my Mustang I run 25lbs of boost with just an air to air intercooler. The Shelby we just finished made around 18lbs ,900hp, with the same type of set up,air to water intercooler we have for our cars and the Shelby has always been a fixed pulley just like everyone else with a supercharger.
Last edited by SICAMG; May 11, 2015 at 01:36 PM.
Member
Joined: Apr 2010
Posts: 206
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From: Tampa, FL
2005 E55 AMG
180mm
I've had mine now for roughly 3 years without an issue...I forgot which one. I know it has the actually pulley part bolted to the part that is bolted to the crank that way the size can be changed easier...I just can't remember who makes them or even if they're still being made...I haven't been around for awhile...
I've had mine now for roughly 3 years without an issue...I forgot which one. I know it has the actually pulley part bolted to the part that is bolted to the crank that way the size can be changed easier...I just can't remember who makes them or even if they're still being made...I haven't been around for awhile...
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Joined: Jan 2011
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From: West
E55 AMG
Any time the bower spins faster regardless of what pulley is where...it will produce more heat.I think every one gets a little crazy with the heat issue. On my Mustang I run 25lbs of boost with just an air to air intercooler. The Shelby we just finished made around 18lbs ,900hp, with the same type of set up,air to water intercooler we have for our cars and the Shelby has always been a fixed pulley just like everyone else with a supercharger.
Granted had I stuck ice in the tank before going to the staging lanes I might have had near ambient temps at the line, considering the lanes were packed that day.
