Tested the best crank pulley and it has adjustable boost features!
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Ok, here is the harmonic balancing hub , sawed in half. You can see the interlocking injected rubber core. This is a CNC, solid steel ,two part hub VERSES the factory hub being cast two part with a very soft rubber in it. This hub uses the same factory method style of dampening but with improved rubber injection, CNC steel parts and better balanced final part. The durameter of the rubber was specially formulated to last longer, handle more HP and larger diameter boost pulleys.
So here it is ,,, with the skirt pulled all the way up..
So here it is ,,, with the skirt pulled all the way up..
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
I am taking pictures and posting info on a safe pulley DIY soon. I hear about a lot of bad installs and I will include some close up shots and tricks to do yourself or most of all WARN your tech about.
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
170mm is available and any custom size you can dream up, so I have been told. I know a guy that plans to run the 170mm and then put the Smaller/lighter SC pulley on with it. Now that will be a wicked combo!
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
I plan to run the RTR pulley in a 185mm with the UPD SC boost pulley combo on my motor that I am buildng now.
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Most peopple tht keep their 55 for a few years or more,, will avergage several crank pulley changes. Plan up front and you can save money by just changing rings.
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Last edited by Exotic-metal55; Apr 5, 2012 at 09:06 AM.
Senior Member
Joined: Apr 2011
Posts: 414
Likes: 1
From: Grand Rapids, MI
S55 AMG
Sorry for the ignorance here, but I would like to know the benifit of the adjustable crank pulley system? I get the changing out pulley, but the hub is what I would like to know.
I am looking at going bigger. I just dyno'd my S55 and put down 503rwhp, but would like a little more. LTH and a new tune are about as much as I want to go. I have shorties now and a 180 ASP kit, 550cc injuectors, cooling pump and Kleemann box tune.
I am looking at going bigger. I just dyno'd my S55 and put down 503rwhp, but would like a little more. LTH and a new tune are about as much as I want to go. I have shorties now and a 180 ASP kit, 550cc injuectors, cooling pump and Kleemann box tune.
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From: Northern Va
Dirt Scooters
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Sorry for the ignorance here, but I would like to know the benifit of the adjustable crank pulley system? I get the changing out pulley, but the hub is what I would like to know.
I am looking at going bigger. I just dyno'd my S55 and put down 503rwhp, but would like a little more. LTH and a new tune are about as much as I want to go. I have shorties now and a 180 ASP kit, 550cc injuectors, cooling pump and Kleemann box tune.
I am looking at going bigger. I just dyno'd my S55 and put down 503rwhp, but would like a little more. LTH and a new tune are about as much as I want to go. I have shorties now and a 180 ASP kit, 550cc injuectors, cooling pump and Kleemann box tune.
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
would be great to see someone with a 180 + S/C up against a 190mm to see how the numbers roll!
Super Member
Joined: Sep 2005
Posts: 927
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From: Covington wa
05 SL500, 02 BMW Z3 (Mrs. VF), 05 FJR1300, 91 ZX-11
Looks good man.
I have the opposite opinion about the inner ring. You need a way to center up the ring independent of the bolts to keep it true and prevent the aluminum ring from walking around under the bolts. I don't know how much HP the s/c consumes but I would guess 60+ to turn that sucker at max rpm. That is a lot of drag.
I have the opposite opinion about the inner ring. You need a way to center up the ring independent of the bolts to keep it true and prevent the aluminum ring from walking around under the bolts. I don't know how much HP the s/c consumes but I would guess 60+ to turn that sucker at max rpm. That is a lot of drag.
The pulley is going to see three loads - centrifugal force due to the pulley spinning, radial load from belt tension, and torque due to the force required to spin the supercharger.
The radial load will be carried by the shoulder that fits into the balancer. It's a simple calculation to see if your shoulder is of sufficient size.
Using bolts to carry the torque load is bad design, and if you insist on using bolts, you should at least us a bolt with a shoulder (smooth area between the head and threads) that is long enough that the threads don't bear against the hole in they pulley.
You should consider improving the design by using close tolerance dowel pins instead of or in addition to a couple of the bolts. That would let the dowell pins carry the torque load and the bolts would simply clamp the pulley to the balancer.
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From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
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Joined: Jan 2009
Posts: 7,659
Likes: 67
From: Atlanta
2006 E55 AMG
READ Brotha READ. These guys are not known for good business practices, and I would hate for you to get burned in more ways than one
These pulleys will eat your crank alive, just give it time.
These pulleys will eat your crank alive, just give it time.
Last edited by chawkins2001; May 4, 2012 at 03:58 PM.
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Joined: Oct 2011
Posts: 2,279
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From: A to the Z (the state)
'06 E55
Here is a video of my RTR 180 at idle after ~2,000 miles, 3 dyno pulls, and at least 25 runs down the track. Straight as can be:
I am also running the new supercharger pulley. Will be at the track in 4 hours.
I am also running the new supercharger pulley. Will be at the track in 4 hours.
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,066
Likes: 37
From: Folsom, CA
2005 E55 AMG
Here is a video of my RTR 180 at idle after ~2,000 miles, 3 dyno pulls, and at least 25 runs down the track. Straight as can be:
http://www.youtube.com/watch?v=1uOY9...e_gdata_player
I am also running the new supercharger pulley. Will be at the track in 4 hours.
http://www.youtube.com/watch?v=1uOY9...e_gdata_player
I am also running the new supercharger pulley. Will be at the track in 4 hours.
can't wait to see the results! A NEW BEAST!
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Joined: Oct 2009
Posts: 2,825
Likes: 17
From: Southern California
E55 w/ goods, Z32 Project underway
At this point I will stick with the pulley I have until an alternative has proven to be reliable, whether it is this pulley or another. Everyone loves their mods until something happens, then the games begin........Hopefully no others will experience the same as the results are obviously tragic. 
Last edited by pearlpower; May 5, 2012 at 12:33 AM.
Member
Joined: Jul 2006
Posts: 138
Likes: 11
From: Las Vegas
2004 CLK55
Finally someone who understands a little about load paths.
The pulley is going to see three loads - centrifugal force due to the pulley spinning, radial load from belt tension, and torque due to the force required to spin the supercharger.
The radial load will be carried by the shoulder that fits into the balancer. It's a simple calculation to see if your shoulder is of sufficient size.
Using bolts to carry the torque load is bad design, and if you insist on using bolts, you should at least us a bolt with a shoulder (smooth area between the head and threads) that is long enough that the threads don't bear against the hole in they pulley.
You should consider improving the design by using close tolerance dowel pins instead of or in addition to a couple of the bolts. That would let the dowell pins carry the torque load and the bolts would simply clamp the pulley to the balancer.
The pulley is going to see three loads - centrifugal force due to the pulley spinning, radial load from belt tension, and torque due to the force required to spin the supercharger.
The radial load will be carried by the shoulder that fits into the balancer. It's a simple calculation to see if your shoulder is of sufficient size.
Using bolts to carry the torque load is bad design, and if you insist on using bolts, you should at least us a bolt with a shoulder (smooth area between the head and threads) that is long enough that the threads don't bear against the hole in they pulley.
You should consider improving the design by using close tolerance dowel pins instead of or in addition to a couple of the bolts. That would let the dowell pins carry the torque load and the bolts would simply clamp the pulley to the balancer.
Member
Joined: Mar 2012
Posts: 168
Likes: 0
e55
Here is a video of my RTR 180 at idle after ~2,000 miles, 3 dyno pulls, and at least 25 runs down the track. Straight as can be:
http://www.youtube.com/watch?v=1uOY9...e_gdata_player
I am also running the new supercharger pulley. Will be at the track in 4 hours.
http://www.youtube.com/watch?v=1uOY9...e_gdata_player
I am also running the new supercharger pulley. Will be at the track in 4 hours.
