Pulley / chip sets
Senior Member
Joined: Nov 2001
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From: Chorley Lancashire England
CLK 430 Coupe + MGF + 1980 Camaro
pulley set / magnetic clutch
does a c230k actually have a magnetic clutch... im sure i read somewhere that the 2001/02 cars do not have it?
thus do you need a different kit for a c230k than for a clk /slk?
thus do you need a different kit for a c230k than for a clk /slk?
MBWorld Fanatic!
Joined: Nov 2001
Posts: 6,211
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From: Laguna Niguel, CA
There's no magnetic clutch. That went out in 99. That's what scares me about their product. They have a SLK230 kit they'll thrown on your C230 if you let them but I don't believe they've done it yet. I still think the Wetteraur kit sounds more believable.
Junior Member
Joined: Nov 2001
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i want to change the SUPERCHARGER pulleys..
so i can get 2-3+ pounds of boost...i have a C32 AMG ...any companies or has anyone changed their pulleys? ..i talked to BRABUS they are coming out with a WHOLE new engine/sc and i can't just get the pulleys..
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Senior Member
Joined: Nov 2001
Posts: 254
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From: Chorley Lancashire England
CLK 430 Coupe + MGF + 1980 Camaro
real world experience?
has anyone, anywhere sucessfully fit a pulley kit to a c230k yet?
I would really like to know before i spend/waste lots of money?
I would really like to know before i spend/waste lots of money?
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Member
Joined: Nov 2001
Posts: 95
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From: Boston, MA
2004 E500 4Matic
Re: i want to change the SUPERCHARGER pulleys..
Originally posted by roozy21
so i can get 2-3+ pounds of boost...i have a C32 AMG ...any companies or has anyone changed their pulleys? ..i talked to BRABUS they are coming out with a WHOLE new engine/sc and i can't just get the pulleys..
so i can get 2-3+ pounds of boost...i have a C32 AMG ...any companies or has anyone changed their pulleys? ..i talked to BRABUS they are coming out with a WHOLE new engine/sc and i can't just get the pulleys..
The computer would see the extra boost and not only decrease the boost, but also trigger the MIL.
Super Member
Joined: Nov 2001
Posts: 557
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From: San Diego
99' SLK 230 & 01' CLK 430
dd
Eddie....wrong !!! Factory never run any spec. at the max...therefore the computor still have a alot room for adjustment. With only 2-3 psi more boost, the computor will sense more air coming then deliever more to match it. KLEEMANN supercharger kit for Clk 430 and 320 does not require ECU upgrade. So just 2-3 psi won't do no harm.
Member
Joined: Nov 2001
Posts: 95
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From: Boston, MA
2004 E500 4Matic
Not to be pessimistic, but I don't agree with you. Just because you can add a supercharger to an engine that doesn't have one, without changing the ECU firmware, doesn't mean you can change the dynamics of a supercharger which is already programmed in. Those are two entirely different scenarios.
Also, I'm not suggesting that you can't add a few PSI, as I know any manufacturer would not produce a unit running anywhere near 100% capacity.
What will happen is when you step on the gas the ECU will request a given amount of charge pressure, for example let's say 5 psi. Because of the aftermarket pulley, the supercharger will produce let's say 7 psi, and when the ECU sees that the actual boost is greater than the requested boost, it will lower the amount of requested boost, and thus lower the amount of current going to the supercharger motor. Doesn't that make sense?
I must admit I am not an expert on forced induction systems, but this is an educated guess coming from the owner of both a supercharged car and a tuned twin-turbo car.
Also, I'm not suggesting that you can't add a few PSI, as I know any manufacturer would not produce a unit running anywhere near 100% capacity.
What will happen is when you step on the gas the ECU will request a given amount of charge pressure, for example let's say 5 psi. Because of the aftermarket pulley, the supercharger will produce let's say 7 psi, and when the ECU sees that the actual boost is greater than the requested boost, it will lower the amount of requested boost, and thus lower the amount of current going to the supercharger motor. Doesn't that make sense?
I must admit I am not an expert on forced induction systems, but this is an educated guess coming from the owner of both a supercharged car and a tuned twin-turbo car.
Super Member
Joined: Nov 2001
Posts: 557
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From: San Diego
99' SLK 230 & 01' CLK 430
eddie,
What you are saying make alot sense. We both agree on that Factory never run anything at MAX SPEC. To my understanding on Supercharger/Turbo cars is that even those they design the pulley to only produce (let just say 14 psi). We all know that same time depending on the weather specially at night when the air is much denser, supercharger/turbo do get over boost. Usually 1-2 psi over, because of this over boost problem, they take that into considering and program the ECU to provide enough fuel and timing up to 16 psi. If anything over 16 psi, they also program in a safety feature called Electronic Fuel Cut Defense. The ECU will automatic retard the timing and fuel when it sense that the supercharger/turbo is providing more then 16 psi (almost like when you RED LINE the engine). Now the aftermarket company know about this, so they decided that to make the pulley smaller to spin faster. This will produce 1-2 psi higher then factory which in turn will give an additional 25-30 hp. This is fine, but now you just made all the parts like injector, fuel pump, fuel pressure regulator...etc to run at the max. Now you will have problem with reliability.
What you are saying make alot sense. We both agree on that Factory never run anything at MAX SPEC. To my understanding on Supercharger/Turbo cars is that even those they design the pulley to only produce (let just say 14 psi). We all know that same time depending on the weather specially at night when the air is much denser, supercharger/turbo do get over boost. Usually 1-2 psi over, because of this over boost problem, they take that into considering and program the ECU to provide enough fuel and timing up to 16 psi. If anything over 16 psi, they also program in a safety feature called Electronic Fuel Cut Defense. The ECU will automatic retard the timing and fuel when it sense that the supercharger/turbo is providing more then 16 psi (almost like when you RED LINE the engine). Now the aftermarket company know about this, so they decided that to make the pulley smaller to spin faster. This will produce 1-2 psi higher then factory which in turn will give an additional 25-30 hp. This is fine, but now you just made all the parts like injector, fuel pump, fuel pressure regulator...etc to run at the max. Now you will have problem with reliability.
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Joined: Nov 2001
Posts: 2,498
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From: Ashburn, VA
'19 GLC 300, '19 TM3SR+
Originally posted by linh
eddie,
We all know that same time depending on the weather specially at night when the air is much denser, supercharger/turbo do get over boost. Usually 1-2 psi over, because of this over boost problem, they take that into considering and program the ECU to provide enough fuel and timing up to 16 psi. If anything over 16 psi, they also program in a safety feature called Electronic Fuel Cut Defense. .
eddie,
We all know that same time depending on the weather specially at night when the air is much denser, supercharger/turbo do get over boost. Usually 1-2 psi over, because of this over boost problem, they take that into considering and program the ECU to provide enough fuel and timing up to 16 psi. If anything over 16 psi, they also program in a safety feature called Electronic Fuel Cut Defense. .
So just installing a pulley alone won't make much sense, the ECU will squash the overboost anyway. Only chipping helps that changes mappings (including air/fuel, of course) and actually lets the engine run at higher boost than stock.
Last edited by vadim; Nov 19, 2001 at 01:29 AM.
Super Member
Joined: Nov 2001
Posts: 503
Likes: 0
From: Jacksonville Florida
w203 c230K 2002
Pully Kit and Exhaust (mods)
I have installed a pulley kit and cat back exhaust system on my 2002 C230K. I’m waiting on the chip modifications. I recommend it to any one that is looking for more power and performance. Recent dyno provided 221 hp and 250 ft/lbs tq. (With exhaust modifications).[IMG]
https://mbworld.org/upload/2001/renncpe.jpg[/IMG]
https://mbworld.org/upload/2001/renncpe.jpg[/IMG]
Last edited by renncpe; Nov 18, 2001 at 10:56 PM.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 2,498
Likes: 3
From: Ashburn, VA
'19 GLC 300, '19 TM3SR+
Re: Pully Kit and Exhaust (mods)
Originally posted by renncpe
I have installed a pulley kit and cat back exhaust system on my 2002 C230K. I’m waiting on the chip modifications. I recommend it to any one that is looking for more power and performance. Recent dyno provided 221 hp and 250 ft/lbs tq. (With exhaust modifications).[IMG]
https://mbworld.org/upload/2001/renncpe.jpg[/IMG]
I have installed a pulley kit and cat back exhaust system on my 2002 C230K. I’m waiting on the chip modifications. I recommend it to any one that is looking for more power and performance. Recent dyno provided 221 hp and 250 ft/lbs tq. (With exhaust modifications).[IMG]
https://mbworld.org/upload/2001/renncpe.jpg[/IMG]
Since the exhaust mod alone couldn't possibly make this much of an improvement - that's pretty impressive! Was that sustained hp/tq or just a short burst that was dynoed? My previous post was based on the assumption that the ECU measures actual boost pressure... If the pulley (w/o a chip) makes this kind of HP/Tq increase, then the ECU mappings in the 230K must be based on the RPMs?..
Could you provide some info on brand(s) and dealer(s) ?
How do you like the results?
Thanks!
Last edited by vadim; Nov 19, 2001 at 02:06 AM.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 3,744
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vadim, based on his name, I believe it is Renntech Mercedes. I think it is his car in the pics on the web site.
http://www.renntechmercedes.com/
http://www.renntechmercedes.com/
Super Member
Joined: Nov 2001
Posts: 503
Likes: 0
From: Jacksonville Florida
w203 c230K 2002
Re: Re: Pully Kit and Exhaust (mods)
Originally posted by vadim
renn--
Since the exhaust mod alone couldn't possibly make this much of an improvement - that's pretty impressive! Was that sustained hp/tq or just a short burst that was dynoed? My previous post was based on the assumption that the ECU measures actual boost pressure... If the pulley (w/o a chip) makes this kind of HP/Tq increase, then the ECU mappings in the 230K must be based on the RPMs?..
Could you provide some info on brand(s) and dealer(s) ?
How do you like the results?
Thanks!
renn--
Since the exhaust mod alone couldn't possibly make this much of an improvement - that's pretty impressive! Was that sustained hp/tq or just a short burst that was dynoed? My previous post was based on the assumption that the ECU measures actual boost pressure... If the pulley (w/o a chip) makes this kind of HP/Tq increase, then the ECU mappings in the 230K must be based on the RPMs?..
Could you provide some info on brand(s) and dealer(s) ?
How do you like the results?
Thanks!
I'm waiting on parts for more modifcations so far this is the most fun I have had building up a car. I love the way the car handles and feels, and if you like the sound off the supercharger it's much more pronounced with the kit.
Modifications:
Engine:
RENNtech larger crankshaft pulley kit
High performance air filter
RENNtech exhaust
Suspension:
RENNtech/Apex springs
Brakes:
RENNtech/Brembo 14” four piston front *
RENNtech/Brembo 12” four piston rear *
Wheels:
Front RENNtech Monolite forged 8.5 x 18”
Rear RENNtech Monolite forged 9 x 18”
Tires:
Pirelli P zero rosso
Front 235/40 ZR 18
Rear 255/35 ZR 18
Transmission:
Short throw shifter
MISC:
3- pc RENNtech custom spoiler
Super Member
Joined: Nov 2001
Posts: 503
Likes: 0
From: Jacksonville Florida
w203 c230K 2002
Originally posted by Lynn
vadim, based on his name, I believe it is Renntech Mercedes. I think it is his car in the pics on the web site.
http://www.renntechmercedes.com/
vadim, based on his name, I believe it is Renntech Mercedes. I think it is his car in the pics on the web site.
http://www.renntechmercedes.com/
thanks
Randy >>>renncpe
Last edited by renncpe; Nov 19, 2001 at 12:05 PM.
