I had previously posted a thread titled ECU UPGRADES in the SRT6 section and got some good info. I was wondering if anyone has went with Evosport for performance upgrades? I've just contacted them and they told me they have a new package for the SLK32 & the SRT6, they sent me some info. and I replied back with some questions. This is the e-mail ---

---Original Message---
From: Simon Atik

Subject: SRT6 Crossfire

Steve-
Thank you for your interest in evosport!
We currently offer the most complete and powerful performance packages on the market for the 3.2L Kompressor motor found in the C32/SLK32/SRT-6. We have sold a number of these packages to SRT-6 owners, many of who are on the Crossfire board. I'm including a link below to the Power Package (includes our ODPS + suited software) we offer for the SLK32 that is also applicable to the SRT-6, with one exception: the windshield washer reservoir conversion is not applicable to the SRT-6.
http://www.evosport.com/product/proddetail.aspx?partnum=EVO.PER.M03.S01

The above kit includes a SOLID crank pulley. We also offer a kit with our new DAMPENED crank pulley. This kit as a power package is NOT listed on the website yet, but is available. It is about $500 more.
Here are a couple links to our ODPS (Overdrive Pulley System) pulley kit for the same car (w/o software). One with a solid crank and one with the dampened crank so you can get an idea of the difference:
ODPS w/ Solid Pulley
http://www.evosport.com/product/proddetail.aspx?partnum=EVO.PER.M70.P11

ODPS w/ Dampened Pulley
http://www.evosport.com/product/proddetail.aspx?partnum=EVO.PER.M70.P12
Simon, I have a couple questions,
1 - What's up with the washer reservoir, what does it have to do with the package?
2 - Does the new evolution 1 Power Package include the chip and I get to keep my OEM chip?
3 - What is the differences between the solid & dampened pulley, what are the benefit's compared to each other?
4 - Why does the Over-Drive Pulley System (ODPS) w/ Solid Crank Pulley say dyno tested 13 hp gain & then claim 30 hp gain on the SLK32, and does this kit not require a ECU or chip upgrade?
5 - Why do your kits require what looks to be 6 pulleys and the RENNTech kit only requires 3?

Thank you, Steve

 

EvoSport has a couple of M3's that run with NASA (National Auto Sport Assn) I will say they have figured out how to really trick those things out and make them FAST. I haven't had any direct contact with them, nor done business with them. But, I have heard both pro's and cons about them and their pulleys and their business practices from the MB forums.

All I can say is CAVEAT EMPTOR, do your research !

 

HDDP, do you happen to know the difference between the C32 and the SLK32? The dyno shows the new kit taking the C32 up to 400hp. The thing I like about their new kit is I think you get to keep your OEM ECU. Their price for the new package is about the same as the RENNTech kit. As you said though, better do some research.

 

I'm not sure, but I believe the newer C32 is a different engine design with four valves instead of the whacky 3 valve engine we have. Our 3 valve engine design was discontinued in 2003. There must be some engine differences since the stock C32 is rated at 346 hp.

 

The C32 & the SLK32 use the same engine, there is no difference between them.

The washer reservoir is intended to separate the intercooler system from the engine coolant delaying heat soak.

Personally I would not go with the undampened pulley. If I was going to get a package from Evo it would be the dampened pulley. There is a reason it is dampened from the factory.

 

HDDP, is the SRT6 a three valve per cylinder?

 

From how I interpreted the specs the whole set up of pulleys are both underdriven (for all the accessories) & overdriven (for the blower). How I read it is that the underdrive pulleys alone are worth the 13 horsepower, plus with the additional overdrive pulley the total increase in horsepower is around 30. I believe the Renntech kit is an overdrive kit specifically for the supercharger only which would explain why Evosports kit comes with more pulleys. I wonder now if Evosport had a better ECU setup how much more power could be extracted? I agree with SRT6_Roadster to stay away from the undampened pulley, especially for a street driven car where reliability is key.

 

Yes. Both engines are 3 valve.

One other note on the undamped pulley it is interesting that when they built the pulley for the E55 they built a dampened pulley.

 

Ditto::: What confuses me is, why is the SRT6 rated at 330 hp and the C32 is rated at 346 if the engine is identical ?

 

From what I've been able to gather the cams are the biggest difference and the exhaust makes up the rest of the lost HP. I watch the C32 threads over at MBworld and those guys are hitting on the 400 hp to the wheels figures. Several are in the 380 hp range. My understanding is that they make a upgrade cam for the S/C 3.2 that should be worth about 15 hp or so. So if you upgrade with that cam over our underdeveloped cams, you should gain a good 30, maybe 35 hp. I would think that the chip and pulley set would make an even bigger increase with the better cams installed. I have no hard proof for these figures, just what I've been able to gather from the various threads over the past several months.
Hope this helps!

 

That upgraded cam you speak of is made by Schrick and/or Carlsson... it's only good for 8 hp +/- and will cost you about $1,700 and $600 installation... You can purchase it from Turner Motorsports... That is the ONLY aftermarket cam available...

 

is there a dyno available for it?

 

The cam is considered a mid level that affects the idle slightly. I have not been able to find a dyno on the product, however one of the engineers at Turner Motorsports says do not expect any more than 8 hp out of this cam. He is basing this result on the install of Schrick cams on BMW engines of similar size.

Turner specializes in BMW racing and has no experience with MB engines.

 

Kleemann sells cams for the SC'd 3.2l motors. Additionally RENNtech does (or did at one) sell cams for the 32's.

Not sure who actually makes the cams, probably Schrick but if you want to go with another brand name there are options (of course it will cost you more).

 

It's either Schrick or Carlsson. Unfortunately the only manufacturers of cams for the car, that's why they are so expensive. Literally double the price of normal race cams.

If you guys are interested in a group buy, I can use my racers discount and get them for $1,400. There are no beefed-up valve springs though...

 

are they good for the srt? if so count me in.

 

I believe the Kleemann kit comes with beefed up valve springs although I am not sure they are needed with such a small change in profile.

As far as do the work. An acquaintance recently had the "works" done to his SLK32: Kleemann - Cams, ECU, Pulley, and LSD, some custom exhaust work, and cosmetic updates. His most recent run on the dyno put him at 375 rwp. There was a big jump in power between from just the Pulley's & ECU to the exhaust work & Cams. I will see about digging up the numbers.

I may be down for a set of the cams. Let me know about time frame and how to pay. A couple of months from now would be much better timing for me.

 

It wouldn't be till the beginning of July. I'm heading out of town on work for 6 months. IF you can find some hard #'s on the cams it would be great.

 

I can find some hard numbers (sort of). Unfortunately they are not for the cams in and of themselves nor was it on a stock car but here you go:

Before today:

After Kleemann ECU/Pulley

Max HP _____ Max Torque

311.27 _____ 311.64

----------------------------------------

New performance mods added as of today:

SL55 Y-Pipe
Kleemann Cams
Kleemann LSD <--- Not sure this makes a difference.


Temp outside was about 73 degrees.

Max HP ______ Max Torque

360.0 _______ 349.8


http://www.benzworld.org/forums/r170...light=Tungster

 

If anyone can direct me to a place where i can purchase these cams for the srt that would be great. Both renntech and kleemann do not seam to offer them for the amg engines thus being incompatible with the srt as well... I did not find it on the carlsson site.