Pulley Weight Comparision - ASP 180, ASP 190, Redtooth Racing Variable Size
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Former Vendor of MBWorld
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From: Houston
2003 W211 E55, 2003 W220 S600
Pulley Weight Comparision - ASP 180, ASP 190, Redtooth Racing Variable Size
I purchased a Redtooth Racing crank pulley yesterday. The Kit come with the following. I plan to install it today. Torqueing specs are same as stock crank pulley.
1. Crank Pulley with outer ring as per your choice. I got a 190mm. From what i understand custom and additional ring sizes are avaliable.
2. Lightweight water pump pulley
3. OEM AMG Crank bolt
4. Gates Belt
Below is a comparision on the weight. ENJOY my friends!!!
ASP 180 weighs in at 14.5LBS
ASP 190 weighs in at 15LBS
Redtooth Racing Pulley with 190mm ring weighs in at 10.5LBS (Same as Stock Pulley)
1. Crank Pulley with outer ring as per your choice. I got a 190mm. From what i understand custom and additional ring sizes are avaliable.
2. Lightweight water pump pulley
3. OEM AMG Crank bolt
4. Gates Belt
Below is a comparision on the weight. ENJOY my friends!!!
ASP 180 weighs in at 14.5LBS
ASP 190 weighs in at 15LBS
Redtooth Racing Pulley with 190mm ring weighs in at 10.5LBS (Same as Stock Pulley)
Last edited by shardul; Dec 16, 2011 at 09:44 AM.
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From: San Diego
F-250
I just pulled off my 180 ASP pulley and it weighed 13.5LB. The new ASP 190 weighed 13.1lb. (Digital bathroom scale) 
I was not looking for or expecting a weight savings, both are steel. The holes around the circumference of the pulley are the same size, just more of them on the 190. I was pleasantly surprised
I was not looking for or expecting a weight savings, both are steel. The holes around the circumference of the pulley are the same size, just more of them on the 190. I was pleasantly surprised
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Thread Starter
Former Vendor of MBWorld
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From: Houston
2003 W211 E55, 2003 W220 S600
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Joined: Mar 2011
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From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
Not sure how some got to 10-15 hps with this but the power freed up will be dependent on the gear. And I'm saying freed up for a reason since there is truly no power gains to be had. Its just that we all mostly do pulls on an inertia dyno and this changes inertia. On an engine brake dyno, this would show nothing. In first gear because the engine accelerates the fastest you would see the most benefit and nearly nothing in 5th. Its no different than changing a flywheel except the diameter is alot smaller so the effect is not as significant. My guess is that on a 3rd gear pull it would equate to a few hp's but not much. I can do the math but I would need some details from you Shards on the dimensions of the pulley so i could get a proper moment of inertia. If the full 10lbs is all on the outside edge vs directly in the center, that makes a big difference too. Send over the details and I'll put a spreadsheet together.
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Joined: Dec 2006
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From: Florida-Germany-New York
2004 E55,1969 300SEL6.3,2011 ML350 BlueTec Diesel,2005 ML400 CDI
Not sure how some got to 10-15 hps with this but the power freed up will be dependent on the gear. And I'm saying freed up for a reason since there is truly no power gains to be had. Its just that we all mostly do pulls on an inertia dyno and this changes inertia. On an engine brake dyno, this would show nothing. In first gear because the engine accelerates the fastest you would see the most benefit and nearly nothing in 5th. Its no different than changing a flywheel except the diameter is alot smaller so the effect is not as significant. My guess is that on a 3rd gear pull it would equate to a few hp's but not much. I can do the math but I would need some details from you Shards on the dimensions of the pulley so i could get a proper moment of inertia. If the full 10lbs is all on the outside edge vs directly in the center, that makes a big difference too. Send over the details and I'll put a spreadsheet together.
Super Member
Joined: Mar 2011
Posts: 502
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From: Porter Ranch, CA
E55, CTS-V Wagon, Duc 1098R
Another great innovation from the Houston crew. Bravo and keep them coming!
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Joined: Jun 2008
Posts: 3,834
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From: Texas
2003 CL55
Not sure how some got to 10-15 hps with this but the power freed up will be dependent on the gear. And I'm saying freed up for a reason since there is truly no power gains to be had. Its just that we all mostly do pulls on an inertia dyno and this changes inertia. On an engine brake dyno, this would show nothing. In first gear because the engine accelerates the fastest you would see the most benefit and nearly nothing in 5th. Its no different than changing a flywheel except the diameter is alot smaller so the effect is not as significant. My guess is that on a 3rd gear pull it would equate to a few hp's but not much. I can do the math but I would need some details from you Shards on the dimensions of the pulley so i could get a proper moment of inertia. If the full 10lbs is all on the outside edge vs directly in the center, that makes a big difference too. Send over the details and I'll put a spreadsheet together.
I was trying to run some moments as well.
Take 190mm at 15lbs and 190mm at 10.5lbs. Both have steel hubs but one ring is steel and the other is aluminum. Granted, we do not know what the weight is on the outer edges of the 190mm but it is alum. VS steel .. So how much inertia is added at 6000 rpm? 4.5 lbs is added to the stock hub on the pulleys that weigh 15lbs.
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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.
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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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Joined: Jun 2008
Posts: 3,834
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From: Texas
2003 CL55
Did you use the tool or hold the flywheel?
__________________
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: Apr 2009
Posts: 1,258
Likes: 5
E55
I purchased a Redtooth Racing crank pulley yesterday. The Kit come with the following. I plan to install it today. Torqueing specs are same as stock crank pulley.
1. Crank Pulley with outer ring as per your choice. I got a 190mm. From what i understand custom and additional ring sizes are avaliable.
2. Lightweight water pump pulley
3. OEM AMG Crank bolt
4. Gates Belt
Below is a comparision on the weight. ENJOY my friends!!!
ASP 180 weighs in at 14.5LBS
ASP 190 weighs in at 15LBS
Redtooth Racing Pulley with 190mm ring weighs in at 10.5LBS (Same as Stock Pulley)
1. Crank Pulley with outer ring as per your choice. I got a 190mm. From what i understand custom and additional ring sizes are avaliable.
2. Lightweight water pump pulley
3. OEM AMG Crank bolt
4. Gates Belt
Below is a comparision on the weight. ENJOY my friends!!!
ASP 180 weighs in at 14.5LBS
ASP 190 weighs in at 15LBS
Redtooth Racing Pulley with 190mm ring weighs in at 10.5LBS (Same as Stock Pulley)
I've weighed the ASP and stock pulleys too, but on a postage scale. The ASP pulleys I have measured come in around 13 and a half pounds depending on overall size. Stock was approx 10 and a half.
Anyone notice the botched install on the first pulley? Yikes!
Just wanted to add, photos and weights aside, I believe you have a great product on your hands.
Last edited by lowprofile; Jan 29, 2012 at 08:33 AM.
