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Belt Wrap Kit for Supercharged M113 motors

 
Old 07-30-2012, 03:05 PM
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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 [email protected] 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

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Last edited by shardul; 08-03-2012 at 05:12 PM.
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Old 07-30-2012, 03:45 PM
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Looks great Shardul. Once it cools off and I start my next round of power mods I will have to add this to your pulley, Fabtech 82mm TB, 550cc injectors, and MBH headers.
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Old 07-30-2012, 03:53 PM
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Originally Posted by black06c230 View Post
Looks great Shardul. Once it cools off and I start my next round of power mods I will have to add this to your pulley, Fabtech 82mm TB, 550cc injectors, and MBH headers.
Thank you Sir
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Old 07-30-2012, 09:51 PM
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Awesome! Great work!
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Old 07-30-2012, 10:58 PM
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I thought this will be different, but it looks like the old Vrus kit. Looks like PITA to change the belts. Good price thought.
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Old 07-31-2012, 06:20 AM
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Originally Posted by Forrest Gump 9 View Post
I thought this will be different, but it looks like the old Vrus kit. Looks like PITA to change the belts. Good price thought.
Vrp kit has a spring tensioner on it. Takes about 20mins to change a belt.
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Old 07-31-2012, 10:28 AM
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Whats that brace made out of?
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Old 07-31-2012, 10:33 AM
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Originally Posted by moosejaw View Post
Whats that brace made out of?
Aluminum
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Old 08-04-2012, 10:14 AM
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one car at a time
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) ?
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Old 08-04-2012, 10:25 AM
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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
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Old 08-04-2012, 03:49 PM
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Here's a video of the belt wrap kit in action at idle. This is with a 175 lower and the smaller upper pulley. Volume warning if you're wearing headphones:

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Old 08-06-2012, 03:00 PM
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Sending payment later today!
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Old 08-06-2012, 04:14 PM
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Originally Posted by black06c230 View Post
Sending payment later today!
cool thank you. PM me once it is done with you pulley size.
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Old 08-07-2012, 09:43 AM
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Old 08-07-2012, 10:01 AM
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2005 E55, 2007 ML63, 2015 GLK350, BMW Z3, Ford F250, 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.
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Old 08-07-2012, 10:11 AM
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Originally Posted by Bramage View Post
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
Thanks....I think I am in the 2.5 psi range....I'll look at the belt and see how it looks (very new)....I did notice a lot of belt dust though the last time I had the hood up.
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Old 08-07-2012, 11:10 AM
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Looks good, however, based on past results, what long term testing has taken place on this? Miles, issues, etc?

Thanks,
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Old 08-07-2012, 11:18 AM
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Originally Posted by pearlpower View Post
Looks good, however, based on past results, what long term testing has taken place on this? Miles, issues, etc?

Thanks,
It has been on my car for about 2000 miles.
Main issue with this product is I need rear tires soon
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Old 08-07-2012, 02:14 PM
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Originally Posted by cij911 View Post
Thanks....I think I am in the 2.5 psi range....I'll look at the belt and see how it looks (very new)....I did notice a lot of belt dust though the last time I had the hood up.
A lot of the belt dust settles around the lower crank pulley main seal, especially if you have any oil there. My upper pulley area and lower oil pan in front is covered in belt dust.

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.
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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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Old 08-07-2012, 02:26 PM
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Nice video of install!
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Old 08-07-2012, 10:48 PM
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Old 08-08-2012, 06:22 AM
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Originally Posted by black06c230 View Post
Just sent the payment!
Thank you sir
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Old 08-14-2012, 10:07 AM
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Here is a picture of the Belt wrap kit installed on a SL55.

Belt Wrap Kit for Supercharged M113 motors-img95992512.jpg
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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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Old 08-21-2012, 02:51 AM
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What tune is recommended with this setup including the smaller S/C pulley w/stock crank pulley (assuming it's required)?
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Old 08-21-2012, 09:38 AM
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If you go smaller top pulley a tune would be required **(highly recommended)

The choice of tune is entirely up to you. All the major players have tuned this modification.
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