Mach430

Beginning July 1st, we will be having a special on underdrive pulleys for the naturally aspirated V6/V8 engines (1998+) and our C Class w203 adjustable sway bars.

evosport UD pulleys: $449 -- $50 savings!
evosport C-Class (w203) Adj. Sway Bars: $379 -- $170 savings!

Prices are valid while supplies last and do not include shipping & handling.

--Ben

LorinserCClass

How 'bout in December a G-buy on Kleeman superchargers

Mach430

Let's stick to July first

breastroker

Ben,
Will the underdrive pulleys for the naturally aspirated V6/V8 engines also fit the 2003 C230 K 1.8L engine?

If it will I want a set. You need a tester?

Mach430

No and no thank you

breastroker

If not, then are you working on getting underdrive pullies for the 4 cylinder engines?
We need alternator, air conditioning and power steering pullies.
Hey 3-12 HP is HP anywhere you can get it.

Mach430

We can make them, however we are unsure of the market demand for underdrive pulleys on those cars. If 25 members are willing to preorder w/ 25% deposits ($125 of $499), then I can have them made in a few weeks.

Thanks,
Ben

nukblazi

Great price on the sways.

Ben- a question about the underdrive pulley kits? What would be the approximate anticipated "gain" or freed up HP?

Underdrive pulleys are legal for what I am doing, crank pulleys are not


Thomas


btw, thank you to you, Brad, Vadim regarding my strut housing issue.

b4chow

how do underdrive affect the factory warranty? does the underdrive pulley require any drilling or noticeable modifications, that if i take off the dealer will notice?

Mach430

Nuk,

I don't like to guess at results, I'd prefer to have dyno's to rely on. They could provide, 5, 10, 15, or 0.

Email me and let me know the results, I hope things went smoothly.

B4Chow,

UD pulleys affect the warranty the same way as any other modification. If they cause a problem, than they are at fault for that item. If not, than it is illegal for the dealer to refuse to cover warranty items. Our UD pulleys do not change the way the motor works, they simply free up lost power that the motor is robbed of by the alternator, water pump, and power steering pump.

b4chow

is there any place i could read about how they work, if not would you mind explaining what the pulley consists of and where in the engine it goes.... thanks...

Richard Galing

I've had the Evosport underdrive pulley's installed on my E430 over 10 months ago...and it still RoCks Also, it works well inconjuction with my Evosport Hi-flow manifold and other mods. I'm sure it assisted me off the line with a recent battle against a mod'd WRX on Tampa & Nordoff (SFV)...took him by 3 car lengths.

Just recently done the B Service at the dealer...no questions or complains about the pulleys.



Cheers
Richard

quietflight

wow great board.

anyway can or will you take definate pre orders for the underdrive v-6 pullies now, or do i have to wait until july?

thanks

breastroker

The Rice burner magazines typically show between 4 -15 HP recovered using underdrive pulleys on engines in the 1800 - 2000 cc size. Not surprising Evosport dyno is often used in these mags.
The 460 HP Ford Focus engine was an interesting article.

This is probably the only hop up that also increases gas mileage. Also does not affect smog at all.
Now if you live where it is very very hot, then don't do the air conditioning pulley. If you are powering 3000 watts of sound equipment don't underdrive the alternator. But for most of us this is more HP gained than a muffler change and air filter change combined. That is why Rice rockets underdrive sets are really cheap, they sell a lot because they work. Cheap as $100 for the alternator onluy and $249 for all three.

German cars are behind the curve, just recently Audi/VW engines got the underdrive pulleys (Neuspeed) for $299. They have been making the pulleys for the Mini since the day it came out.

Check out http://www.unorthodoxracing.com/index.html
They have lots of dyno reports and information on underdrive pulleys.

I would not be surprised if someone doesn't make an underdrive pulley for our alternator, just selling it for an Audi or BMW.

Mach430

We will NEVER do the a/c pulley. That is sacreligious on a Mercedes!

breastroker

Being a member of the Mercedes Benz Club of America I have long realized there is a religion associated with MB's. Mostly around Gullwings and 540K's.

I also am well aware that early MBs had barely adequate A/C, but VERY good heater systems.

But is the 21st century MB still inadequate in the A/C department? The A/C in my Coupe cools faster than the A/C in my Lincoln Mark VIII, which has a huge A/C even by USA standards.

That is sacreligious on a Mercedes
Actually most hot cars have used a vacuum A/C cut out to turn off the A/C completely during rapid acceleration. But then with no underdrive you don't get the better gas mileage
As if we care, anything over 25 mpg is gravy.

The best way to make any MB faster is to change the rear end ratio. If I had that turbocharged oil burner AMG coupe the first thing I would do is change that 2.45 rear to a 3.07. That 0-60 would be in the high 4 to low 5 second range, from a diesel

Mach430

Changing the rear differential is a good upgrade, but very expensive in a Mercedes. You can't simply swap the gear and drive. It also has to be matched to an upgraded EGS controller (Tranny computer) in order to properly handle the new gear. Otherwise, the ESP will always think the car is slipping, and you will be in permanent limp-mode.

czachari

Thanks

Mach430

They aren't on our site yet. Did you have any questions about them?

quietflight

ben, can you answer my question about ordering the pullies?

czachari

What is adjustable on them? What about the install on a C230K Sedan? How do they compare to the AMG bars ( in stifness and handling improvement ) ?

Thanks

CZ

Lynn

Sway bar sizes.

Stock: 20 mm front and 13 mm rear
C32: 22 mm front and 16 mm rear
Evosport: 24 mm front and 19 mm rear
Eibach: 24 mm front and 22 mm rear

The C32 front bar is 46.4% stiffer than stock.
The C32 rear bar is 129.5% stiffer than stock.

The Eibach and Evosport front bars are 107.4% stiffer than stock.
The Evosport rear bar is 356.3% stiffer than stock.
The Eibach rear bar is 720.2% stiffer than stock.

The Eibach and Evosport front bars are 41.6% stiffer than C32.
The Evosport rear bar is 98.9% stiffer than C32.
The Eibach rear bar is 257.4% stiffer than C32.

The Eibach rear bar is 79.8% stiffer than Evosport.


The stock front bar is 460.2% stiffer than the stock rear bar.

The C32 front bar is 257.4% stiffer than the C32 rear bar.

The Evosport front bar is 154.6% stiffer than the Evosport rear bar.

The Eibach front bar is 41.6% stiffer than the Eibach rear bar.

levelr123g

question?

do all the bars use the same type of material?
if they do not then would your numbers be misrepresented?
im assuming that different metals have different stiffnesses.

AMGDood

Ben, Im interested in the sways. Can you tell me how much it is for installation and if your swaybars have the same problem with the xenon lights as the eibach ones do?

Mach430

czachari,

Email me, and I can prepare your order, however no action will take place in fulfilling it until July (if you wish to get the special price).

Our sway bars are 3-way adjustable in the front and 2-way adjsutable in the rear. We have designed our sway bars to avoid the Xenon leveling sensor.

Thanks,
Ben