Jakpro1

Got this from Oliver. ( I did speedtuing ECU before going Kleemann)

Hi James,



How are you doing? How is the MB running?

We have now a special running for the pulley upgrade for all our MB 55 customers, US$ 2090.00 for the pulley in exchange of your original pulley plus a free software upgrade. With the new pulley you could make up to plus 60HP at the wheel! It is stronger then Renntechs version.

Let me know if you are interested?



Best regards,

Oliver

JamE55

If their claim it's stronger than Renntechs do they have a dynosheet to prove this?

Jakpro1

True...plus Cory told me you could make a pulley the size of a dish plate if you wanted to, but the Klee/EVO/Renn pulleys are balanced for power AND keeping that motor running in the long term. Too big and you will have the fastest 55 motor on the planet, for about 20,000 miles or whenever, then poof.

vrus

Their statement about the pulley being "stronger" (I assume he meant generating more power) than Renntech's is probably due to it being a larger diameter. The Hennessey pulley is also larger in diameter and results in higher boost and therefore more power to the wheels. That statement means absolutely nothing in my opinion.

To be perfectly honest, if I were to spend $2,000 on a pulley I would get the Evosport pulley SET. They give you the underdrive pullies for the accessories plus you get the crankshaft pulley which overdrives the supercharger. That's what I bought and I am very happy with them so far.

I would be very interested to see a dyno plot of a car that had the speedtuning pulley and/or the hennessey pulley installed. Since they are larger than the rest, I would love to see how much heat soak affects the power on a stock car.

BlownV8

These guys will make a custom pulley for a fraction of the cost that others are quoting. The only bad part is that you will need to send them the pulley off your car and wait aroud three weeks. http://www.aspracing.com/intro.htm

vraa

Custom pulleys .. without R&D?
I'll stick to Evosport pulleys thanks.

R. Range

But will they make a custom pulley integrated into your harmonic balancer for a fraction of the cost others are quoting?

Jakpro1

Oliver (Speedtuning) says he is gonna send me some dynos....this should be interesting.

BlownV8

From what I've experienced, yes. The mark-up on Mercedes pulleys from the big name tuners is around 200%. Many will pay that for piece of mind but, from reading others negative experiences, I'd say the piece of mind is not always a given.

Accomplice8

Its a chunk of metal that should run about $200.

BMWEATR

I agree, i can afford to go and lay out the $5000 for ecu and pulley, but the companies are jamming it in our a$$'s and i'm having a big problem w/ it.
theres another comapny someone posted arp out of texas w/ pulley costing $800? they make alot of the pulley's on the market.

vraa

I think that's Hennessey right?

medici78

Its probably not listed on anywhere.
Perhaps they make it for Hennessey, as the Henessey pulley sells for $1600 IIRC.

I think its good to see a company come out with a pulley/ecu combo for a reasonable price. Maybe this competition will inspire others to lower prices...

Meh, doubt it.