Belt Wrap Kit for Supercharged M113 motors
#1
Thread Starter
Former Vendor of MBWorld
iTrader: (1)
Joined: May 2008
Posts: 12,139
Likes: 294
From: Houston
2003 W211 E55, 2003 W220 S600
Belt Wrap Kit for Supercharged M113 motors
Belt wrap kits ready.
1) Increases belt wrap of crank pulley and supercharger pulley to help eliminate the dreaded belt slip
2) Stops loss of boost from belt slip during peak loads and when clutch engages
3) Uses ASP idler pulley with high speed rated ZZ bearings.
4) Promotes longer lasting belt and less dust
5) Test have shown any where from .5 to 1.5psi of boost increase during peak loads
6) Easier to tune car with more consistent boost levels and less fluctuation during peak load
7) Easy to install and kit also braces the double idler pulley`s to eliminate them from flexing under load . This double idler flexing causes belt tension to decrease and more belt slip.
Price 550 shipped in the continental US (Will be shipped out 08/03 via UPS) Retail is 599 plus shipping and handling.
My paypal id is mehtashardul@hotmail.com PM me if you prefer to pay via credit card.
Please make sure to notate your pulley size / combo in the paypal description so the appropriate belt size can be supplied.
Detailed install instructions and pictures will be included with the kit.
Contents of kit
1. Idler pulley
2. Bolts
3. Brace
4. Bracket
5. Gates Belt
Before
After
Belt wrap kit with 3 piece asp idler pulley kit 799 shipped in the continental US
Belt wrap kit, 3 piece ASP idler pulley and smaller s/c pulley (this will be avaliable in week of Aug 6, 2012) 1299 shipped in the continental US
1) Increases belt wrap of crank pulley and supercharger pulley to help eliminate the dreaded belt slip
2) Stops loss of boost from belt slip during peak loads and when clutch engages
3) Uses ASP idler pulley with high speed rated ZZ bearings.
4) Promotes longer lasting belt and less dust
5) Test have shown any where from .5 to 1.5psi of boost increase during peak loads
6) Easier to tune car with more consistent boost levels and less fluctuation during peak load
7) Easy to install and kit also braces the double idler pulley`s to eliminate them from flexing under load . This double idler flexing causes belt tension to decrease and more belt slip.
Price 550 shipped in the continental US (Will be shipped out 08/03 via UPS) Retail is 599 plus shipping and handling.
My paypal id is mehtashardul@hotmail.com PM me if you prefer to pay via credit card.
Please make sure to notate your pulley size / combo in the paypal description so the appropriate belt size can be supplied.
Detailed install instructions and pictures will be included with the kit.
Contents of kit
1. Idler pulley
2. Bolts
3. Brace
4. Bracket
5. Gates Belt
Before
After
Belt wrap kit with 3 piece asp idler pulley kit 799 shipped in the continental US
Belt wrap kit, 3 piece ASP idler pulley and smaller s/c pulley (this will be avaliable in week of Aug 6, 2012) 1299 shipped in the continental US
Last edited by shardul; 08-03-2012 at 05:12 PM.
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#9
Shardul - I was looking at a recent log I did in 3rd gear and noticed the boost is not as flat as I thought it would / should be....Any idea what the boost curve should look like when the belt is NOT slipping (how many psi fluctuation is normal) ?
#10
You will see a (+/-) 1 to 2 psi deviation under normal conditions. Also, boost is variable thanks to the little throttle body under the SC. You will see boost step up as you accelerate.
Here you will see the minor variations, as well as the step up.
WHen the belt slips (depending on how bad and for how long) you will see BIG drops (5+ psi), If you are in the 1 -2 range, you are seeing "normal" behavior
Here you will see the minor variations, as well as the step up.
WHen the belt slips (depending on how bad and for how long) you will see BIG drops (5+ psi), If you are in the 1 -2 range, you are seeing "normal" behavior
#15
Senior Member
Joined: Aug 2009
Posts: 310
Likes: 1
From: Wisconsin
2005 E55, 2007 ML63, 2008 SLK, 2015 GLK350, BMW Z3, Dodge Power Wagon, Electric Smart car
I installed my new Belt Wrap Kit last night. The install was very simple & I only needed a few hand tools. The install time was about 40 minutes. The Belt Wrap Kit is heavy duty and will work great with our engines I am very happy with this high quality product. I did a little test run after the install & noticed rite away big improvements. My SC engages smoother and the acceleration is improved especially from 3200 rpm and higher. I noticed big improvements between 40mph and 130mph & then backed off the throttle.
#16
You will see a (+/-) 1 to 2 psi deviation under normal conditions. Also, boost is variable thanks to the little throttle body under the SC. You will see boost step up as you accelerate.
Here you will see the minor variations, as well as the step up.
WHen the belt slips (depending on how bad and for how long) you will see BIG drops (5+ psi), If you are in the 1 -2 range, you are seeing "normal" behavior
Here you will see the minor variations, as well as the step up.
WHen the belt slips (depending on how bad and for how long) you will see BIG drops (5+ psi), If you are in the 1 -2 range, you are seeing "normal" behavior
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Glennzo (12-06-2019)
#19
The larger the lower crank pulley, the more the belt will tend to slip. I have seen them slip on the dyno on stock cars to modified cars. Lot easier to tune without the slip as well. Belt wrap kits are very common on many of the high production supercharged cars and have been for years. Belt slip on supercharged cars , has long been a performance issues. Especially after you modify them.
__________________
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
#23
__________________
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