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i dont beleive the srt-6 is a handmade engine like the 32 but i could be mistaken
the SRT engine is the same and marked AMG under the chrysler engine cover. I have done extensive work on my Crossfire and they are exactly the same as the SKK320 R170. No Chrysler parts on the car. fit and finish of the Crossfire is as good as the SLK. the Crossfire is also built in the same factory. I have done extensive modifications to my Crossife including installing a V8 from a CL500. I have upgraded the suspension with parts meant for a SLK including vogtland springs, KYB shocks and installed SLK32 rotors with CL500 four piston MB/Brembo calipers.
 

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Here you go. Engine is from a CL500 but any 113 V8 engine will work. Since the Crossfire is a 170 chassis this conversion would work on any R170 SLK. C Class wooul also very be very similar. This conversion does not have to cost a fortune either.
 

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just want to clarify the crossfire was built in karmann and the slk32 was built in bremen germany
nice job stuffing the v8 in the car! :eek:
Yes, The Crossfire was built BY Karmann and I thought that I had read once that Karmann built the SLK and one other MB. the interior is basically the same as the SLK but with some minor design changes. The interiors will interchange and even the door panels can interchange. The bottom line is that if you try to modify your Crossfire with Chrysler parts you will be very frustrated but if you use MB parts it is very easy to modify a Crossfire. the Crossfire/SRT6 is nothing more than a re-skinned SLK320/SLK32

We have the V8 running but still working a bug that we now think is a defect in the ECU. To start the engine we have to turn the key on and jump the starter. There is no crank at the key. They ECU doesn't seem to be doing its job in the start process. The ECU, engine and harness came from a car that was totaled in the rear and caught fire. The fire didn't reach the engine compartment but is this type of accident it is possible for voltage to get to the wrong part of the ECU.
 

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i have followed your progress on the crossfire forum and think its awesome! the ecu has always been the bugger for these cars has had many a mechanic reachin for a hammer!! so when does the amg blower go on?:eek:
I posted on here because what I did is exactly what a guy with a SLK 170 would do to put a V8 in. Brabus offered this swap for the R170 and offered the exact same swap for the Crossfire under the Startech name.

the hardest part of the swap to figure out was the electronics. But if you start with a ECU from a wrecked car that has a glitch things really get tough! since we managed to get all the computers happy with each other and all the correct coding into the ECU and the anti-theft system all happy, I am confident that this is a good approach to a swap. We are hoping that with a replacemnt ECU we will get the starter signal through the ECU to work. right now the engine runs fine but we have to turn the key on and manually ground the starter therby bypassing this function that the ECU is supposed to perform. We know we don't have an anti-theft/Imobilization problem because we can see this in the STAR Diagnostic system.


My goal is to have the running as though it came stock with a V8 and runs and drives OEM. Once I acheive that I will start normal mods to make the V8 really run. Under consideration is cams/headers, and forced induction. the AMG supercharger would look and run great but a rear mounted Squires single or dual turbo system would do more for the car. The supercharger would be great for instant low end torque but with the V8 in such a small car, low end torque really isn't an issue. Having the top end of the turbo might be better. the only forced induction that will fit in the engine compartment is the AMG supercharger. There is no room for a turbo or belt driven supercharger.
 

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The mechanical part of this swap is pretty straight forward but the hardest part is all the coding and programing. To program the car you have to use the Mercedes STAR Diagnostic system in developer mode. Most shops that have the STAR system don't even know about developer mode. Every STAR system has developer mode but it takes a special security key to activate it. Developer mode is also only in German and is used by the factory engineers when developing prototypes and new cars. Krause's automotive have been working with me on the electronic part of the swap. If you are interested in an engine swap you should contact Robert Krause as he is very reasonable and knows how to do this. the average shop would probably not want to do this and if they did you could end up paying a fortune in the hours it takes someone else to figure everything out. With R170's and C class cars reasonably priced and nice engines on Ebay, this doesn't have to cost as much as people assume.

Here is a link to Robert Krause:

Krause's Automotive - Home
 

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Lol. I may just ship my car down there! HAHA! Thanks for the link.. We'll see if I end up doin it.. but either way please keep us updated with everything on this build! Look forward to it running perrrrrfect!
If you bought the parts and had them shipped there you could drive down and two days latter be driving a very fast car back home. The swap takes about 1.3 days and the programing takes about two hours.
 

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Here is a link to all the documentation you would ever need.

Crossfire SRT6 Documentation Collection

The Crossfire's are virtually identical to the the SLK32's and SLK320's so the most of the manuals will apply to the MB's as well. We haven't seen prices cheaper at Chrysler in fact I buy most of my parts at MB. Everytime I have bought a part from Chrysler the part is in a Mercedes box with a Chrysler part number sticker stuck over the MB part number. When buying parts they always want a VIN number. One trick we Crossfire owners do is go on Ebay and grab a VIN number from an SLK that is listed for sale. This is a lot easier than trying to explain to the MB parts guy that I have a Crossfire. The same would work in reverse if you SLK guys want to buy parts from the Chyrsler dealer.
 
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