Super charger boost pulley options for power
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Super charger boost pulley options for power
Here are most of the main UPD Supercharger pulley sizes made, including the new Duel bearing 77mm clutched model. Also the new 74mm fixed SC pulley. Get asked all the time what each size is equal to in crank pulley size, so here is the general ratio list.
1) Starting from the upper left, we have the fixed 89mm fixed SC pulley and this model is a stock boost replacement sc pulley, that eliminates the OEM clutch unit and increases power by reducing rotating mass (same as all the pulley`s below).
2) 77MM fixed supercharger pulley and equal to a 180mm crank pulley ratio.
3) 74mm (new) fixed supercharger pulley and equal to a 185mm crank pulley ratio.
4) 83mm clutched style pulley and equal to a 168mm pulley but some have dynoed hp gains in the 180mm crank pulley range. 60 plus hp gains have been attained with tune.
5) 77mm (new) clutched style duel bearing SC pulley and equal to a 180mm crank pulley ratio.
Belt wrap kits are recommended with all SC pulley`s.
1) Starting from the upper left, we have the fixed 89mm fixed SC pulley and this model is a stock boost replacement sc pulley, that eliminates the OEM clutch unit and increases power by reducing rotating mass (same as all the pulley`s below).
2) 77MM fixed supercharger pulley and equal to a 180mm crank pulley ratio.
3) 74mm (new) fixed supercharger pulley and equal to a 185mm crank pulley ratio.
4) 83mm clutched style pulley and equal to a 168mm pulley but some have dynoed hp gains in the 180mm crank pulley range. 60 plus hp gains have been attained with tune.
5) 77mm (new) clutched style duel bearing SC pulley and equal to a 180mm crank pulley ratio.
Belt wrap kits are recommended with all SC pulley`s.
__________________
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: Jan 2009
Posts: 7,659
Likes: 67
From: Atlanta
2006 E55 AMG
Nice, the tip in on the fsp are insane. Been trouble free on BI Performance CL55 for months now!
I have been lucky enough to compare iats between the M113k blower, Weistecs 3.0 blower and now on my Caddi CTS V. All sit withing 5* of each other in stop and go traffic and highway cruising. Definitely worth the upgrade.
I have been lucky enough to compare iats between the M113k blower, Weistecs 3.0 blower and now on my Caddi CTS V. All sit withing 5* of each other in stop and go traffic and highway cruising. Definitely worth the upgrade.
Last edited by chawkins2001; Mar 23, 2015 at 09:21 PM.
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Sorry for delayed reply but up late on a photoshoot and traveling today.
Been over a year since I put my UPD 77mm clutched sc pulley on but basically, to go 3mm smaller per side (6mm total), required a different bearing set up than the 83.5mm pulley, that was limited to 83mm. So a duel bearing set up was created, presses in fit like the 83mm but X2 and looks like the 83mm front and back. This design, allows for a smaller SC pulley to be used , lighter and gives additional options to make considerable more power with a clutch Sc pulley.
Been over a year since I put my UPD 77mm clutched sc pulley on but basically, to go 3mm smaller per side (6mm total), required a different bearing set up than the 83.5mm pulley, that was limited to 83mm. So a duel bearing set up was created, presses in fit like the 83mm but X2 and looks like the 83mm front and back. This design, allows for a smaller SC pulley to be used , lighter and gives additional options to make considerable more power with a clutch Sc pulley.
__________________
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
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Senior Member
Joined: Feb 2011
Posts: 320
Likes: 40
From: Northern VA
2015 CLS63 S AMG
This 77mm clutched is new to me too. Thinking of doing the Killer Chiller with my Bosch 010. I'm assuming this will be enough cooling for that level of boost. Also would you have to upgrade to 550cc injectors for it too?
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Super Member
Joined: Jan 2008
Posts: 586
Likes: 2
From: Springfield, Missouri
03' E55 Techtite Grey
Here are most of the main UPD Supercharger pulley sizes made, including the new Duel bearing 77mm clutched model. Also the new 74mm fixed SC pulley. Get asked all the time what each size is equal to in crank pulley size, so here is the general ratio list.
1) Starting from the upper left, we have the fixed 89mm fixed SC pulley and this model is a stock boost replacement sc pulley, that eliminates the OEM clutch unit and increases power by reducing rotating mass (same as all the pulley`s below).
2) 77MM fixed supercharger pulley and equal to a 180mm crank pulley ratio.
3) 74mm (new) fixed supercharger pulley and equal to a 185mm crank pulley ratio.
4) 83mm clutched style pulley and equal to a 168mm pulley but some have dynoed hp gains in the 180mm crank pulley range. 60 plus hp gains have been attained with tune.
5) 77mm (new) clutched style duel bearing SC pulley and equal to a 180mm crank pulley ratio.
Belt wrap kits are recommended with all SC pulley`s.
1) Starting from the upper left, we have the fixed 89mm fixed SC pulley and this model is a stock boost replacement sc pulley, that eliminates the OEM clutch unit and increases power by reducing rotating mass (same as all the pulley`s below).
2) 77MM fixed supercharger pulley and equal to a 180mm crank pulley ratio.
3) 74mm (new) fixed supercharger pulley and equal to a 185mm crank pulley ratio.
4) 83mm clutched style pulley and equal to a 168mm pulley but some have dynoed hp gains in the 180mm crank pulley range. 60 plus hp gains have been attained with tune.
5) 77mm (new) clutched style duel bearing SC pulley and equal to a 180mm crank pulley ratio.
Belt wrap kits are recommended with all SC pulley`s.
Senior Member
Joined: Feb 2011
Posts: 320
Likes: 40
From: Northern VA
2015 CLS63 S AMG
So with the FSP if you stayed with stock boost levels what would the heat be like for IATs? I'm assuming the same as stock just no ability to clutch the Supercharger when it gets too hot.
Last edited by CerBErusM113; Apr 4, 2015 at 07:43 AM.
Super Member
Joined: Nov 2012
Posts: 698
Likes: 16
From: Germany
C215 CL55 AMG, W124 500E, W210 E430, W124 300E
Anyway, unless the tuners figure out whats causing the FSP issues, the FSP Pulleys are worthless in my opinion. Have a 77mm here, will not use it until tune gets fixed (if it will ever happen at all).
Super Member
Joined: Jun 2014
Posts: 609
Likes: 19
From: Ontario
2005 E55
Patience for the noob, so the fixed SC will not grenade like some of the clutched pulley options? Downside is they never stop rotating the SC, so if IAT's get too high you may be in some trouble?
Super Member
Joined: Feb 2005
Posts: 929
Likes: 3
From: Littleton, CO
2005 E55 silver
correct, so decide what you would rather have fail..pulley/bearing or your whole motor if you don't have cooling in place.
Senior Member
Joined: Feb 2011
Posts: 320
Likes: 40
From: Northern VA
2015 CLS63 S AMG
Pretty accurate way of putting it, that being said apparently the first batch of clutched S/C pulleys was made defectively or with poor springs. So they were prone to "grenading" apparently it's been fixed. But it's your car, don't take it on my word. Ask around to folks who have it in their signature and look and see if anyone has had issues with them in the last few months. Or you could always call the manufacturers for slight confirmation.
MBWorld Fanatic!
Joined: Jul 2014
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From: Earth, USA, Atlanta, GA
E55
Can somebody explain why a 180 crank pulley makes more power than the SC pulley equivalent? I went from 180MM CP to stock and want the power back but can't do a crank pulley anymore. I am limited to supercharger pulleys
MBWorld Fanatic!
Joined: Jul 2014
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From: Earth, USA, Atlanta, GA
E55
That being said, I would think the SC pulley would yield the exact results from a crank pulley. The only thing I could see different is the CP gets the SC rotors spinning faster due to the rotating mass but that would be pretty minimal.
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From: SWFL
E55, E320 CDI , CLA250, Jag XJ Supersport
Have the 77mm SC pulleys been dynoed yet?
Senior Member
Joined: Feb 2011
Posts: 320
Likes: 40
From: Northern VA
2015 CLS63 S AMG
IDK whose car this is but the caption says 77mm FSP, don't know anything about their dyno or the tune but it says 444whp with cooling mods. Just browsed youtube for "FSP AMG"
Last edited by CerBErusM113; Apr 10, 2015 at 11:11 AM.
Senior Member
Joined: Dec 2014
Posts: 271
Likes: 4
From: Auckland, New Zealand
2004 E55 AMG
77mm Clutched has been dyno'd
There was a full thread with results and full writeup on another forum but I don't think I can post the address
Here is the results from the tuner on Facebook
https://m.facebook.com/story.php?story_fbid=938405019531633&id=5313673835 68734&refid=17&_ft_&__tn__=%2As
There was a full thread with results and full writeup on another forum but I don't think I can post the address
Here is the results from the tuner on Facebook
https://m.facebook.com/story.php?story_fbid=938405019531633&id=5313673835 68734&refid=17&_ft_&__tn__=%2As
MBWorld Fanatic!
Joined: Dec 2011
Posts: 1,485
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From: new ringgold pa
99 ford lightning
The black car is my buddies, he went back to a clutch pulley that fixed pulley tune never worked right, the went back to a fixed 77 and tune from bip now it runs great makes a lil over 500hp
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
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From: Texas
2003 CL55
The UPD (ultimatepd.com) 77mm clutched SC pulley is a game changer for new power options on our 55 engines. Big power and easy to install. Due to the weight savings VS a crank pulley, gains will and are showing to outperform a 180mm crank pulley.
__________________
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: May 2007
Posts: 6,403
Likes: 139
From: Clearwater Beach, Florida
2016 Cls63s AMG
77mm Clutched has been dyno'd
There was a full thread with results and full writeup on another forum but I don't think I can post the address
Here is the results from the tuner on Facebook
https://m.facebook.com/story.php?sto...t_&__tn__=%2As
There was a full thread with results and full writeup on another forum but I don't think I can post the address
Here is the results from the tuner on Facebook
https://m.facebook.com/story.php?sto...t_&__tn__=%2As
Stock
423whp
475 wtq
77mm pulley tuned
509 whp
596 wtq
that's a lot of power just from a pulley. Its got to have more mods
Super Member
Joined: Jun 2014
Posts: 609
Likes: 19
From: Ontario
2005 E55
Is it engineered differently to resist the malfunction that some of the other CSP's have experienced? I am new to the platform so bear with me, how is this a "game changer"?
