Underdrive pulley system
First, who has one?
Whats gains in what gears and what's the increase in torque?
What's the pro's and con's?
Does Evosport warranty any damage that this product maybe cause?
thanks....
Eric
As I have mentioned before we have pulleys on hundreds of BMW street and race cars. Not one car has experienced a problem with our kit. The alternator is spinning less, so if you have a large aftermarket stereo, I would recommend using your factory alternator pulley with your factory belt, as hi-end stereos demand a lot of battery power.
The pulley kit is only on sale for another couple days. As of October 1st, our pulleys will be $599 (currently on sale for $499).
How much is the installation?
Eric
1 hour, about $60, but when i went to get mine installed, my power steering pump was screwed, so i had to get that fixed in addition, so i ended up spending more. but thats just my car, install time is 1 hour at the most....easy install...
Eric
Did the MB Dealership install yours underdrive pulley kit?
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Thanks
Ben
The Best of Mercedes & AMG
The mechanic who installed his pulley was unable to get the pulley off the pump. He was either using the wrong pulley puller, or it may have just been installed too tight from the factory. This is the first I our his mechanic had heard of this happening. His power steering pump was and still is perfectly fine.
Thanks
Ben
Eric
Our underdrive pulley kit consists of a new power steering pulley, water pump pulley, alternator pulley and a belt. Replacement belts are available through us. The gains are immediate. As soon as you stomp on the pedal from a stop, you will have 13-15 more HP at the wheels than you currently do.
Wouldn't it be possible to get the same gains by just going to a smaller crank pulley and appropriate belts?
Now I'm more confused at who to believe....
Last edited by BroadSt Bully; Sep 27, 2002 at 01:38 PM.
Let me clarify a few things. None of our underdrive pulley kits have ever included a crank shaft pulley. Thus, they in no way affect the way the crank spins. Absolutely none of your mentioned concerns are a problem. This really is an easy upgrade. I would be more concerned with running K&N filters than underdrive pulleys.
I would be more than happy to explain this to you over the phone.
Thanks
Ben
Last edited by Mach430; Sep 27, 2002 at 05:56 PM.
The pulleys are a bit lighter and a tiny bit smaller. The install took about a hour or two. There is no difference in idle or anything. Its just like stock. Honestly if I didnt mention it to anyone, no one would know.
But check out this listing
THESE PRICE REFLEX A 230C NOT A CLK 430 but it's an example
kleemann steel pulley kit ($599) - 1 year warranty (1 year installation warranty if installed at approved shop)
220hp/227lb-ft
kleemann alloy pulley kit ($899) - 1 year warranty (1 year installation warranty if installed at approved shop)
232hp/239lb-ft
väth pulley kit ($1200?) - 2 year warranty on parts?
Performance(Achievement): 165 kW = 225 PS (basis 193 PS), 168 kW = 228 PS (basis 197 PS) torque: 320 Nm of 2.800 U/min (ok, this is a direct translation from their website...)
<strike>carlsson pulley kit ($???)
169 kW (230 PS)/ 5200 1/min</strike> unavailable in the US
renntech pulley kit ($1695) - 2 year limited warranty on parts
Larger Crankshaft Pulley, Idler Pulley Belt, ITG Air Filter
220@5300 HP 248@2500-4800 Torque
With out air filter ($1495.00)
wetterrauer pulley kit ($1295)
pulley that maintains the magnetic clutch, a drive belt, fuel pressure regulator and special air intake pipe for the increased air volume 230 HP 236 ft/lbs peak
You see the RennTech Rep knew I can buy a cheaper kit so down talked the pulley kit totally. Then he stated the only thing for my car was an airtake,ECU, and exhaust sytem which they sell for $3000 dollars. I might add he was very short with me unlike the Evosport staff.
I'm very openminded about mods; however, the Renntech reps think only good mod for your MB is from there company.
At the end of the conversation the guy told me didn't even have a benz he drives a Toyota.
Now go figure...
Exactly do you sell them...
But check out this listing
THESE PRICE REFLEX A 230C NOT A CLK 430 but it's an example
kleemann steel pulley kit ($599) - 1 year warranty (1 year installation warranty if installed at approved shop)
220hp/227lb-ft
kleemann alloy pulley kit ($899) - 1 year warranty (1 year installation warranty if installed at approved shop)
232hp/239lb-ft
väth pulley kit ($1200?) - 2 year warranty on parts?
Performance(Achievement): 165 kW = 225 PS (basis 193 PS), 168 kW = 228 PS (basis 197 PS) torque: 320 Nm of 2.800 U/min (ok, this is a direct translation from their website...)
<strike>carlsson pulley kit ($???)
169 kW (230 PS)/ 5200 1/min</strike> unavailable in the US
renntech pulley kit ($1695) - 2 year limited warranty on parts
Larger Crankshaft Pulley, Idler Pulley Belt, ITG Air Filter
220@5300 HP 248@2500-4800 Torque
With out air filter ($1495.00)
wetterrauer pulley kit ($1295)
pulley that maintains the magnetic clutch, a drive belt, fuel pressure regulator and special air intake pipe for the increased air volume 230 HP 236 ft/lbs peak
You see the RennTech Rep knew I can buy a cheaper kit so down talked the pulley kit totally. Then he stated the only thing for my car was an airtake,ECU, and exhaust sytem which they sell for $3000 dollars. I might add he was very short with me unlike the Evosport staff.
I'm very openminded about mods; however, the Renntech reps think only good mod for your MB is from there company.
At the end of the conversation the guy told me didn't even have a benz he drives a Toyota.
Now go figure...
Eric
Can we get some RennTech customers to write in to the forum and express thier satisfaction.
Dude,
Off the record, How did you earn that name?
Eric
That's cool, I was short to until I started getting some. So try that..
Now i'm 6'7 270lbs.


