I came across a used slk supercharger from mercedes. The ad claims the supercharger can be used on an SRT6, but does anyone know if it can just be added to an non supercharged crossfire? If so how much labor? thanks guys

 

Of course you can use that! depending on the person doing it shouldnt be to bad for labour!

 

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just need to machine a new pulley to slow it down, otherwise it's too much presure for the higher CR of the NA 112.

also need srt6 injectors. the stock timining map is detuned on the NA crossfire so you don't need to reprogram the ecu, just monitor your fuel ratios. start out a 6 psi then bring it up slowly to about 8psi. that's n easy 310 hp

try to search for Chuck Norris Supercharger thread, he'll show you everything you need. if you want I can email you the Low boost Supercharger instruction manual for the SK chargers. should help you out. I would suggest getting the Higher pressure regulator and pump from an AMG 113 car. this willbe a good safety feature.

 

There is a lot more to it than that. Yes the N/A ECU is detuned but the fuel maps are totally different because on the SRT6, everything is based on manifold pressure and tps whereas on the base/limited, it is based off MAF, tps, and MAP. You will need a substantially larger pulley and without being too specific, it will be about twice the size of the one that's on there now to get you down to ~7PSI. even if you get the supercharger on the cheap, that cost will be about a tenth of your final costs and that's if you don't destroy your engine or anything else like I did in the process. Shoot me an email if you want to talk about it more in depth.

 

how did you set up your fmu?

 

I didn't use an FMU. I used a separate system to handle the fuel and ignition. It's still a work in progress.

 

I realize this would be for his specific application, but why in an email may I ask? If you put the info in a thread, everyone can benefit and many (motor)heads throwing around ideas is a lot better than 1. I know personnally, I am looking very hard to SAFELY boost the power in my NA and I know I am not alone. If it's no problem, please continue discussion here or in another thread. Thanks a lot.

John

 

The reason why I haven't posted any info is I don't want people blowing up their engines... You can have this up and running in a day and destroyed in an hour. The problem with these cars is that the static CR is way to high. Heck, 9.5:1 on the SRT6 is up there for a forced induction engine granted that the aluminum block helps out for almost an entire point vs old iron but it's still pretty high.

 

I would post the instruction manual but it's a bit too large and won't upload here...

 

how where you monitoring your AFR durring your run that blew the motor?

 

Innovate LM-1 WB setup in a bung welded in right after the right manifold.

 

No need to be sarcastic, I was simply trying to get us all on the same page with the same knowledge - I was thinking that was the point of the forum. If someone takes this knowledge and blows up their motor, I guarantee it will only happen once....

 

Something else for the original poster:
You may not have noticed, or known, but the supercharger in the photo is just that: a supercharger. You'd still need an intercooler as well and probably SRT manifolds and Y-pipe. None of those things are cheap. Just sayin: it ain't gonna be as easy as it seems (as rcompart says).

 

I'm not being sarcastic... gimme your email I'll send you the pdf and you can figure out how to compress it and upload to the site OK?

 

intercooler is not neccessary for 7 psi. I suggest you read CHuck norris's SUPERCHARGER thread...as I originally sent him the PDF file to start his project from.

you might need the voltage clamp for the maf, and some check valves, as that's what they used on the SK kit.

Oh and one more thing, spend some money on a decent data logging computer if you plan on doing this.. really you can't be guessing at this stuff!

 

All good words of wisdom but you won't need the check valves if you're managing your fuel correctly. A wastegate on the other hand isn't a bad idea though. Yes, I know thye normally go on the exhaust to manage boost. Not the case here though.

 

I don't think this is something I want to get into. I was thinking its cheaper.

 

I am not laughing at you, but LMFAO, another one bit the dust. There have been many who come along and want to do something of this nature, until they actually wrap their heads around the cost and time it would require. Keep working Bryan (Importlab) get that turbo kit going for us NA guys....

 

Get a smaller eaton or better yet a procharger. Efficient parts are rarely cheap. The SRT6/c32 superchargers will probably work but I would look at the compressor map to see how efficient it is at the slower speeds you will be driving it at. This car is tunable with FMU and Piggybacks as long as you completely hide the SC or turbo from the ecu, which is easier said than done. It took me quite some time to accomplish that. According to LantanaTX there is a guy at LET that can reprogram the ECU for FI.