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Old 07-07-2009   #21 (permalink)
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Question, does changing the K pulley put too much stress on the engine parts?
Does it require anything more, cooling, fuel mixtures, etc ?

thanks
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Old 07-08-2009   #22 (permalink)
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No.
No.

Check the crank seal (~$20) while you are at it. Replace if necessary.
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Old 07-28-2009   #23 (permalink)
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is there anywhere i could get this kit in the uk?
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Old 08-27-2009   #24 (permalink)
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Well done Gabus, you explained it all, and you have a brillant car

just to think between 320 and 32AMG, they had to reinforce several parts inside the engine

and when you get this power, you need to work on the breaks and wheels, shock absorbers . . .
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Old 12-18-2009   #25 (permalink)
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Quote:
Originally Posted by Gabus View Post
Not exactly a fan..... It's an air compressor also called a blower or a supercharger

http://tinyurl.com/2vwgsq

By increasing the RPM's of the compressor you force more air into the motor. To get more RPM's you need a smaller pulley on the compressor or a bigger pulley on the crank, or a combo of those two. I've think I read somewhere that the compressor in the SLK 230 can take about 16000 RPM's

By putting a compressor in the SLK320 AMG gained 136PS/140NM which became the 32AMG.......
The ASP pulley for a 230 is a larger diameter pulley then the standard pully. There is no crank pulley in the kit, just one hugh pulley for the supercharger. The kit is designed to take the Supercharger to 12000 RPM giving around 8.5 psi boost. 12000 RPM is well within the design specs of the eaton supercharger in your car.

The pulley also weights more then the original pulley which means when you take your foot off the accelerator, the car does not loose RPM quickly. If you fit an alloy pulley that is lighter then standard, then you end up with a car that will rev quicker, but will also loose RPM very quickly when your lift your foot of the accelerator, which makes the car very hard to drive. This does not happen with the ASP pulley as it is heavier then standard and when you take your foot of the accelerator the car just keep going at the same RPM and there is no sharpe drop in RPM.

I have the ASP pully and love it, and I have had it for over 3 years now. Before I got the pulley, I was always having to press the accelerator to the floor to get the car moving (I have a 2003 model 230) but after the pulley was installed, I almost never need to do this. The increase in power is hugh.

The ASP pulley is done on exchange. It's $US350 + $US300 deposit, which ASP refund to you when they recieve your standard pulley in the post.

This is the only mod I have seen that will give you a hugh increase in HP for a few hundred dollars. you would have to spend many thousands of dollars to get the same result on a non-supercharged car, like the 320.

My car easily leaves a 320 behind, I even took off the SLK230 bagdes so people do not think I am driving a slow SLK230. Let face it a standard SLK230 is a slow car,otherwise so many people would not be interested in modifying it.

Cheers
Luc
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Old 01-24-2010   #26 (permalink)
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Quote:
Originally Posted by Driller View Post
Go to ASP Racing

http://www.aspracing.com/frame.htm

.. and then under 'street pulleys' select 'Imports'. Scroll down to Mercedes and you'll see the kit for a '98 - '00 C230 (includes pulley, MAS relocation pipe, plugs, fuel pressure regulator and belt). It should fit a 98 SLK. I had a similar kit on my '99 (from Linh) and it worked great. A little pricey @ $1,200! Kit #ASP331320
I have to apologize but I am not familiar with the Ps/NM language. How much HP do you think can be picked up by one of these kits? I went to the site and seems like the company's link is not up anymore to the kit's but they are able to be contacted so I am sure they can still get the kits.

Thank You.
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Old 01-24-2010   #27 (permalink)
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Quote:
Originally Posted by luc256 View Post
The ASP pulley for a 230 is a larger diameter pulley then the standard pully. There is no crank pulley in the kit, just one hugh pulley for the supercharger. The kit is designed to take the Supercharger to 12000 RPM giving around 8.5 psi boost. 12000 RPM is well within the design specs of the eaton supercharger in your car....
Are you sure about this??? A larger SC diameter pulley will slow down the SC and make you lose power, a smaller diameter SC pulley will increase the rpms on the SC and increase power...
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Old 01-25-2010   #28 (permalink)
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Ok, according to ASP's website you are buying a larger CRANK PULLEY not a larger SC pulley. This makes more sense... a larger crank pulley and/or a smaller SC pulley will increase SC rpms. A larger SC pulley will underdrive or slow down the rpms on the SC.
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Old 01-27-2010   #29 (permalink)
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Hello, i am new to this forum and just with this first search, you guys have answered every question i had concerning the ASP pulley. I just wanna thank you guys for all the detailed information.
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Old 01-27-2010   #30 (permalink)
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Are they still charging $650 with a $300 credit when you send in the old pulley??
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Old 02-05-2010   #31 (permalink)
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Quote:
Originally Posted by sikdogg View Post
Are you sure about this??? A larger SC diameter pulley will slow down the SC and make you lose power, a smaller diameter SC pulley will increase the rpms on the SC and increase power...

Ok wow, I see a bunch of people who have no clue how a supercharger even works....for thoose of you, I would highly recomend educating yourself with books before you even approach this mod.

the way a blower, i.e. supercharger, works in simple terms.
-the supercharger is connected to your intake to the motor...the supercharger also has a pulley connected to the crank pulley of the car...
the faster the supercharger pulley spins, the more air the turbines force into the motor. you can do this one of three ways....
1) a BIGGER crank pulley will spin the supercharger pulley faster
2) a smller supercharger pulley will spin the supercharger faster
3) a bigger crank pulley AND a smaller crank pulley will really spin the supercharger fastest.

now the down side...when you go very small on the supercharger pulley you tend to get belt slippage because the belt does not have alot of surface area to grab onto. people have gotten around this using extra belt tensioners in their cars.

second problem....the more air you force into the motor, the more gas your motor needs and the more heat is produced...
1) larger fuel injectors or a new map is needed on your computer
2) if going super high in boost you will need to get forged pistons and rods to handle the exta stress put on the motor.
3) in order to handle the extra heat from more compressed air, you will need a larger intercooler, or water methonal cooler as well.

***with the ASP kit, you are only adding a few PSI to the motor and the stock internals should be able to handle this without upgrading the internals, however a new fuel map will be needed, i.e. they provide this I believe.

*****GENERAL RULE OF THUMB for supercharging, for every 6psi added to the motor via supercharger you will gain roughly 50% more horsepower... for example, if your car is making 150HP, if you added 6psi to that motor, you would now be making 225HP.

hope this helps some of you clear things up..
ignore my spelling, i was typing this very quickly
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Old 02-06-2010   #32 (permalink)
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Quote:
Originally Posted by mavrick77 View Post
Ok wow, I see a bunch of people who have no clue how a supercharger even works....for thoose of you, I would highly recomend educating yourself with books before you even approach this mod.
Was this comment addressed to me?? I believe i know more about forced induction than most people on this board or anyone who's only read books, including you. I've installed supercharger kits (and turbos) on Integras and Civics and my current BMW where i tuned it myself using an AEM FIC piggyback. I am in the process of buying parts for my next project... to turbo my BMW using a T4 GT35 with power goals of 500+ whp. I have also designed and fabricated a custom supercharger kit on my 86 Jeep CJ7 (using an Eaton M90) and tuned it with Megasquirt.

Quote:
the way a blower, i.e. supercharger, works in simple terms.
-the supercharger is connected to your intake to the motor...the supercharger also has a pulley connected to the crank pulley of the car...
the faster the supercharger pulley spins, the more air the turbines force into the motor. you can do this one of three ways....
1) a BIGGER crank pulley will spin the supercharger pulley faster
2) a smller supercharger pulley will spin the supercharger faster
3) a bigger crank pulley AND a smaller crank pulley will really spin the supercharger fastest.
This is what i stated... and the opposite is that if a larger pulley is installed on the supercharger, it will spin slower and lose power.

Last edited by sikdogg; 02-07-2010 at 12:55 PM.
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Old 03-02-2010   #33 (permalink)
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Quote:
Originally Posted by sikdogg View Post
Was this comment addressed to me?? I believe i know more about forced induction than most people on this board or anyone who's only read books, including you. I've installed supercharger kits (and turbos) on Integras and Civics and my current BMW where i tuned it myself using an AEM FIC piggyback. I am in the process of buying parts for my next project... to turbo my BMW using a T4 GT35 with power goals of 500+ whp. I have also designed and fabricated a custom supercharger kit on my 86 Jeep CJ7 (using an Eaton M90) and tuned it with Megasquirt.


This is what i stated... and the opposite is that if a larger pulley is installed on the supercharger, it will spin slower and lose power.

no no...was not towards you. After I read it did sound kinda bitchy...but was more addressed to the people who are thinking about messing with their supercharger and really don't even know how it works... its a good way to blow up a mercedes motor. but no, not addressed towards you, or really anyone directly.
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Old 03-02-2010   #34 (permalink)
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I have an 03 230. will that pulley work for this year or do you know if they offer one for this year
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Old 03-02-2010   #35 (permalink)
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Anyone have any idea how to get more power? Did the Remus exhaust with resonators yanked and cat will be gone this weekend. Removed factory airbox and made my own CAI with a K&N cone. And am going to get this ASP pulley. End of the road?! What about the AEM FIC Silk talked about. Its universal. Anyone tried it on their SLK 230? Need help. I want to max out this little engine that could.
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