Hennessy or Asp pulley on cls55
Originally Posted by Ted Baldwin
...........For the AMG V8K engines ASP, Kleemann, Brabus, Hennessey, Carlson, MKB etc all modify the crankshaft pulley by adding an outer ring to it. The diameter of the outer ring determines the degree of boost and is largely responsible for any significant differences in HP gained between the different companies. ECU tunning then modifies this from a safety standpoint by making sure A/F ratios are proper and your engine is not running too lean. This is all. The appearance of the ASP pulley above is exactly the same as appearance of the Kleemann pulley and those of other tuners.
.............The smaller pulley pictured above is a smaller waterpump pulley that is neccessary with the Hennessey and ASP pulleys because the larger diameter of those modified Crank shaft pullies cause them to rub against the stock water pump pulley when installed. It is not usually needed with the Kleemann and Renntech set up.
Ted
.............The smaller pulley pictured above is a smaller waterpump pulley that is neccessary with the Hennessey and ASP pulleys because the larger diameter of those modified Crank shaft pullies cause them to rub against the stock water pump pulley when installed. It is not usually needed with the Kleemann and Renntech set up.
Ted
.............I don't know the belt size as I did not do the actual install myself. The shop that did it ran into the same problem of needing a slighly larger pulley with Hennessey pulley. I was already using a Kleemann pulley with the stock belts. I then upgraded from the Kleemann pulley to the Hennessey pulley and that was when I needed a larger belt. The shop then measured the stock pulley and purchased three additional pulleys larger than it. They used the one that worked. I am suspecting that the ASP and Hennessey pulley's are the same, at least in size.
...........the picture posted above by IMA55R2 of the ASP pulley also shows the stock pulley. All ASP did was to add the outer ring. Notice the mercedes benz star on the base pulley. So in that picture are views of both the stock and aftermarket pulley.
Ted
...........the picture posted above by IMA55R2 of the ASP pulley also shows the stock pulley. All ASP did was to add the outer ring. Notice the mercedes benz star on the base pulley. So in that picture are views of both the stock and aftermarket pulley.
Ted
Going to look for Dayco belt as well...
Found good deal on ASP pullies
http://www.k1motorsport.com/index.htm
Anyone knows anything about this company ???
Or
May be some sponsors on this site sell ASP pullies ???
Found good deal on ASP pullies
http://www.k1motorsport.com/index.htm
Anyone knows anything about this company ???
Or
May be some sponsors on this site sell ASP pullies ???
Last edited by E55 RUSS; May 30, 2006 at 02:53 AM.
Originally Posted by M5 RUS
Albert...
Told ASP about belt problems and they told I need to use
K080510 belt not Dayco...
Told ASP about belt problems and they told I need to use
K080510 belt not Dayco...

Ted
Ted...you dont know my issues...
I am not in US and not sure if would be able to find this belt at all here...
I want to prepare and to get everything at once and not to wait another 2 weeks till the belt arrives...especially if I am sending this those pullies to German dealer and want him to install it...
I am not in US and not sure if would be able to find this belt at all here...
I want to prepare and to get everything at once and not to wait another 2 weeks till the belt arrives...especially if I am sending this those pullies to German dealer and want him to install it...
Sorry guys but I getting confused even more...
ASP just told ME that
Dayco does not make a 51.5 long belt. There part number is 5080510 . My
guess is the Gates belt is 51.0 long as this is the part number.
ASP just told ME that
Dayco does not make a 51.5 long belt. There part number is 5080510 . My
guess is the Gates belt is 51.0 long as this is the part number.
Originally Posted by M5 RUS
Sorry guys but I getting confused even more...
ASP just told ME that
Dayco does not make a 51.5 long belt. There part number is 5080510 . My
guess is the Gates belt is 51.0 long as this is the part number.

ASP just told ME that
Dayco does not make a 51.5 long belt. There part number is 5080510 . My
guess is the Gates belt is 51.0 long as this is the part number.

Here you go all the 8 rib belts they manufacture.http://www.mvreader.com/multiview/da...ltsSearch.y=14
...........you can get virtually any kind of belt you want from these guys......http://www.beltsforanything.com/site6.php
.............problem is you do not know what belt you need. It is very easy to tell once you begin the install. rflow306 tells you you need the dayco 51.6 belt. ASP tells you you need another belt. Belts are cheap, just buy both belts and use the one that works.
..............alternatively, you may wish to leave ASP or Hennessey pulleys alone altogether and buy Kleemann or Renntech pulleys where the belt size is not an issue.
Ted
.............problem is you do not know what belt you need. It is very easy to tell once you begin the install. rflow306 tells you you need the dayco 51.6 belt. ASP tells you you need another belt. Belts are cheap, just buy both belts and use the one that works.
..............alternatively, you may wish to leave ASP or Hennessey pulleys alone altogether and buy Kleemann or Renntech pulleys where the belt size is not an issue.
Ted
Thanks for your help guys !!!
Will get ASP pullies and Dayco 515 belt, if it too long then stock one would work or which ever belt ASP supplies...
They said they sold 3 kit last months and never heard any issues with belt
Will get ASP pullies and Dayco 515 belt, if it too long then stock one would work or which ever belt ASP supplies...
They said they sold 3 kit last months and never heard any issues with belt
what results?
Originally Posted by M5 RUS
Thanks for your help guys !!!
Will get ASP pullies and Dayco 515 belt, if it too long then stock one would work or which ever belt ASP supplies...
They said they sold 3 kit last months and never heard any issues with belt
Will get ASP pullies and Dayco 515 belt, if it too long then stock one would work or which ever belt ASP supplies...
They said they sold 3 kit last months and never heard any issues with belt

any before and after? Pictures or/and Dyno?
thanks
ASP supplied me with belt #K080510 and guess what? It was to short no matter how hard my tech tried he could not get it to go on.
I'm going to search for Dayco #508515 tomorrow at my local part stores hope they sell that brand.
I'm going to search for Dayco #508515 tomorrow at my local part stores hope they sell that brand.
I was able to install belt #K080510. It was a pain in the butt, but I managed to get it on. I had to use prybar and had the belt slide over the tip of the prybar and onto tensioner pulley.
Senior Member
Joined: Jul 2003
Posts: 460
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2006 SL65 ///AMG - GONE BUT NOT FORGOTTEN: 2005 E55; 2002 ML55; 2001 CLK55; 1992 BMW 850i; 1991 M5
Belt Length
Ted B, I think you may have touched on this a few posts up: am I correct that the Kleemann pulley (and RennTech, for that matter) are designed to work with the factory belt. I.E. there is enough adjustment in the tensioner to accommodate the increased diameter of the Kleemann pulley? I am about to jump on a Kleemann pulley and want to get the correct belt (if necessary) before I storm off to the shop for installation. Thanks! P.S. Anyone with a Kleeman pulley upgrade, please chime in!
Going to look for Dayco belt as well...
Found good deal on ASP pullies
http://www.k1motorsport.com/index.htm
Anyone knows anything about this company ???
Or
May be some sponsors on this site sell ASP pullies ???
Found good deal on ASP pullies
http://www.k1motorsport.com/index.htm
Anyone knows anything about this company ???
Or
May be some sponsors on this site sell ASP pullies ???

Have you tried ASP directly......make them the offer of $799.....I paid $850.00
http://www.aspracing.com/intro.htm
Last I checked the E/CLS base powerplant/driveline are all the same.
CLS55's have a "look". Do you think "evil" fits the bill?
TK








