Evosport underdrive pulley sizes on C55?
Thread Starter
Member
Joined: Nov 2012
Posts: 221
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From: San Diego, CA
2005 C55 black on black aka DVS C55, 2007 C230 sport silver on black for the boss
Evosport underdrive pulley sizes on C55?
Can anyone with Evosport pulleys on a C55 send me the size of the pulleys? And the replacement belt #?
Trying to put together a makeshift set of other types of pulleys.
Thanks
Trying to put together a makeshift set of other types of pulleys.
Thanks
Thread Starter
Member
Joined: Nov 2012
Posts: 221
Likes: 4
From: San Diego, CA
2005 C55 black on black aka DVS C55, 2007 C230 sport silver on black for the boss
I wasn't asking for opinions, I was asking for pulley sizes.
UDPs allow an engine to rev faster and this has been proven for decades. Decades. With time slips.
Last edited by EDgineered; Mar 3, 2014 at 01:09 PM.
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From: California
06 C55, 09 E350
You don't have to request opinions to get them obviously telling you so you don't waste your time. This is info they told me when I asked about them. So have fun, I am sure there will be people lining up to help you...
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From: Va Beach, VA
05 C230K SS (sold), 06 C55 (sold), 08 Yamaha R1 (sold), 16 X5M
lol its not about making power...this isn't like a s/c pulley to increase boost. You don't put in a better transmission to "add power" but you do go faster! lol
GLW the search ED (although your name is eerily close to Erectile dysfuntion-gineered) lol just saying!
GLW the search ED (although your name is eerily close to Erectile dysfuntion-gineered) lol just saying!
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MBWorld Fanatic!
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
UD pulley is fantastic upgrade, after install the, car running smoothly,
i didn't dyno the car, our fine friend Jason(503C43 ////AMG) did:
https://mbworld.org/forums/c36-amg-c...run-c43-2.html
ZAYED,,
i didn't dyno the car, our fine friend Jason(503C43 ////AMG) did:
https://mbworld.org/forums/c36-amg-c...run-c43-2.html
ZAYED,,
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Thread Starter
Member
Joined: Nov 2012
Posts: 221
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From: San Diego, CA
2005 C55 black on black aka DVS C55, 2007 C230 sport silver on black for the boss
Super Member
Joined: May 2011
Posts: 660
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From: Maryland
2006 C55, 1995 C36
Sizes as follows:
Power Steering @ 5.5840"
Water Pump @ 4.7170"
Alternator @ 2.4825"
Belt is NAPA 25-060945
PS and Alt pulleys were measured for overall diameter of the pulley. If you'd like additional measurements to the ribbed surface of the pulley let me know, looks like install will be next week so I have a few days.
Power Steering @ 5.5840"
Water Pump @ 4.7170"
Alternator @ 2.4825"
Belt is NAPA 25-060945
PS and Alt pulleys were measured for overall diameter of the pulley. If you'd like additional measurements to the ribbed surface of the pulley let me know, looks like install will be next week so I have a few days.
Thread Starter
Member
Joined: Nov 2012
Posts: 221
Likes: 4
From: San Diego, CA
2005 C55 black on black aka DVS C55, 2007 C230 sport silver on black for the boss
Sizes as follows:
Power Steering @ 5.5840"
Water Pump @ 4.7170"
Alternator @ 2.4825"
Belt is NAPA 25-060945
PS and Alt pulleys were measured for overall diameter of the pulley. If you'd like additional measurements to the ribbed surface of the pulley let me know, looks like install will be next week so I have a few days.
Power Steering @ 5.5840"
Water Pump @ 4.7170"
Alternator @ 2.4825"
Belt is NAPA 25-060945
PS and Alt pulleys were measured for overall diameter of the pulley. If you'd like additional measurements to the ribbed surface of the pulley let me know, looks like install will be next week so I have a few days.
Awesome, thanks for the measurements and pics, the lip looks as deep as the stock lip so should be good.
Hopefully the pulleys get you to 11.999! It would be the first N/A C55 in the 11s as far as I know.
Thread Starter
Member
Joined: Nov 2012
Posts: 221
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From: San Diego, CA
2005 C55 black on black aka DVS C55, 2007 C230 sport silver on black for the boss
Belt for the underdrive pulley set:
Belt is NAPA 25-060945 which translates to a 6 rib, 94.5inch belt. The belt at Dayco is 5060945
Many other brands call it a 945K6
I put together an underdrive pulley kit and got all of the parts off of eBay! Thanks again for the info on the parts Dustin...
Evosport Pulleys
Power Steering: evo.mpps.3v
Water Pump: evo.mpho.3v
Alt: evo.bpalm5.pw
The water pump pulley looks different than some other Evosport C55 pulleys I have seen but it is the correct same size, bolt pattern and part #.
The Alt pulley is a 7 rib pulley instead of 6 rib (for an M5 but still Bosch alt) and has a built in spacer on the back, everything else is the same. Going to drop it and the stock alternator pulley off at the machine shop in the coming weeks to get the spacer cut down. The extra groove wont hurt anything.
Have a new power steering pump on the way (couldn't get that thing to shut up!) and have had the AMS crank pulley waiting to be installed for some time now.
Sooo, in the coming weeks I will install the lightweight crank pulley and underdrive pulley setup. Cant wait!
The pictures shown are the pulleys I have and the pictures of another members pulley kit along with the same crank pulley.
Last edited by EDgineered; Jul 2, 2014 at 12:58 PM.
Super Member
Joined: May 2011
Posts: 660
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From: Maryland
2006 C55, 1995 C36
Sorry Zayed, don't know how I missed your post, looks like Ed answered you though...
Belt for the underdrive pulley set:
Belt is NAPA 25-060945 which translates to a 6 rib, 94.5inch belt. The belt at Dayco is 5060945
Many other brands call it a 945K6
I put together an underdrive pulley kit and got all of the parts off of eBay! Thanks again for the info on the parts Dustin...
Evosport Pulleys
Power Steering: evo.mpps.3v
Water Pump: evo.mpho.3v
Alt: evo.bpalm5.pw
The water pump pulley looks different than some other Evosport C55 pulleys I have seen but it is the correct same size, bolt pattern and part #.
The Alt pulley is a 7 rib pulley instead of 6 rib (for an M5 but still Bosch alt) and has a built in spacer on the back, everything else is the same. Going to drop it and the stock alternator pulley off at the machine shop in the coming weeks to get the spacer cut down. The extra groove wont hurt anything.
Have a new power steering pump on the way (couldn't get that thing to shut up!) and have had the AMS crank pulley waiting to be installed for some time now.
Sooo, in the coming weeks I will install the lightweight crank pulley and underdrive pulley setup. Cant wait!
The pictures shown are the pulleys I have and the pictures of another members pulley kit along with the same crank pulley.
Belt is NAPA 25-060945 which translates to a 6 rib, 94.5inch belt. The belt at Dayco is 5060945
Many other brands call it a 945K6
I put together an underdrive pulley kit and got all of the parts off of eBay! Thanks again for the info on the parts Dustin...
Evosport Pulleys
Power Steering: evo.mpps.3v
Water Pump: evo.mpho.3v
Alt: evo.bpalm5.pw
The water pump pulley looks different than some other Evosport C55 pulleys I have seen but it is the correct same size, bolt pattern and part #.
The Alt pulley is a 7 rib pulley instead of 6 rib (for an M5 but still Bosch alt) and has a built in spacer on the back, everything else is the same. Going to drop it and the stock alternator pulley off at the machine shop in the coming weeks to get the spacer cut down. The extra groove wont hurt anything.
Have a new power steering pump on the way (couldn't get that thing to shut up!) and have had the AMS crank pulley waiting to be installed for some time now.
Sooo, in the coming weeks I will install the lightweight crank pulley and underdrive pulley setup. Cant wait!
The pictures shown are the pulleys I have and the pictures of another members pulley kit along with the same crank pulley.
Glad I could help Ed, looking forward to hearing how it works out for you!
,
Thread Starter
Member
Joined: Nov 2012
Posts: 221
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From: San Diego, CA
2005 C55 black on black aka DVS C55, 2007 C230 sport silver on black for the boss
So I finished the install of the underdrive pulley set and lightweight crank pulley. Mas Powerrrrr! revs faster, shifts smoother, shifts faster, just pulls harder and revs up faster through the entire range. *feels* like a little more vibration due to the lighter crank pulley but who knows...
I am also going to space out the A/C unit in the coming month(s) so that I can use a short belt to bypass the compressor when desired but use a slightly longer belt to use it when needed.
Gonna need to add 265 R compounds to the list of mods.....
.
Last edited by EDgineered; Jul 24, 2014 at 01:19 PM.
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From: NY
2014 E350 4Matic
For anyone who's interested I just pulled the Evosport under drive pulley set from my car and am willing to sell it, the Alternator Pulley, Water Pump Pulley and Power Steering Pulley as pictured below.
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04 Crossfire MB 5.0L M113 V8 6spd, 05 Bagged SRT6w/55K AMG V8 ,2016 C300 Sport
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C55 AMG
I’m also interested in a UDP set. I’ve been trying to look for these but haven’t come across anything for sale. Looks like it’s been discontinued. Any leads to parts that could possibly interchange with our C55’s? Or anyone here selling?
