Hey guys,

im fairly new to the forum, and was doing some research, im trying to add S/C to my 2004 limited crossfire, but has anyone actully achieved putting on the supercharge on the limited?and if so can they help me?

thank you.

 

1 1/2 year ago I asked the same. I got the answer: put your money on a SRT.

 

https://www.crossfireforum.org/forum...-readings.html

Just buy an SRT-6. The Limited engine has a higher compression ratio and mostly different internals in the bottom end, meaning it's going to be harder to get it to take as much boost as an SRT-6 without causing shenanigans.

The SRT-6 engine is built to take boost, comes with a supercharger, and SRT-6es are only $3000-$5000 more than Limiteds now - a steal considering that most decent superchargers are over $1500 alone without any supporting parts.

If your issue is that you want a manual transmission, it *is* possible to mate an SRT-6 to a manual with a different crankshaft and a ton of blood, sweat, and tears (and/or money). HDDP here on the forums has done it, but he replaced the entire engine management system at the same time so he didn't have to deal with angry German electronics. I suspect that Rudy and team at Accelerated Industries might be able to tame the electrical German beast by now (possibly with some help from the Eurocharged crew), but I don't know for sure because I don't think anyone's done it.

https://www.crossfireforum.org/forum...ransplant.html is more information on HDDP's swap if you're interested.

Rumor has it the manual also won't take the power of an SRT-6 engine, especially tuned, but since nobody's really tried nobody really knows.

 

^^^ Lots of good info here.

Technically speaking, there have been several Mercedes 320 motors on the interwebs supercharged with a Kleemann kit, one of the only "complete" blower kits offered for the N/A 320 motor. Bad news, they're only pushing 7-8 PSI and they're $8,000 (plus install). I've talked to Rudy at length about the Kleemann setup and he's not a huge fan.

For $8,000, you'd be much happier buying a used '32 AMG/SRT motor and swapping it in, as you can generate potentially three times the boost, and the internals are built to take it. They can be found for as little as $3,000 although, caveat emptor. Install is a bear and not recommended unless your name is Rudy Compart.

Mercedes never paired the manual with the Kompressor motors for fear of longevity, however there are those in the know that think the 6MT is more than capable under stock SRT numbers. With a heavily modded Kompressor motor, certain things will go "pop"

Rough estimates from Rudy put the swap ('32 motor into N/A chassis) at ~$12,000 give-or-take... turn-key.

If one could find a 6-cylinder Kleemann kit for $5,000 and pay Kleemann (Cory at national HQ in Colorado is a standup guy and very adept) then you'd have a winner. Coupled with the 3.27 gearing, it would be plenty quick and should put down respectable performance.

Two problems with that: finding a cheap Kleemann Kit, and hoping the internals will last more than 15,000 miles after the install.

Buying an SRT and selling the Limited is the quickest fix. There is a new TCU mod in the works for the auto-stick guys that makes owning a manual basically pointless... if my car was any color other than Alabaster, I would consider upgrading. It all comes down to your goals for the car.

 

For a lot less money and heartache, I am planning on a NA 5 litre V8 conversion. Being over 350HP, I will decide if/when I want to add the SC or turbo setup....

 

In that case, you'll be doing the N/A 550 motor... the Merc 500 is only good for 302 HP in stock form.

Are you going to try to keep the stick?

 

https://www.crossfireforum.org/forum...d-limited.html

Web 3.0 has and here's his thread.

 

I will be using the 5,461cc 5.5L V8 making 382HP/391ft. lbs in stock form. Brain fart.

I would not drive an automatic.

 

To all those who are talking so nonchalantly about swapping motors in, please let me know how that goes. JHM2K, I'd like to know more about that TCU mod please. Lastly, to chime in one more possible option to avoid the German Electric Beast is to possibly buy a wrecker merc with desired motor and swap out the entire working car out from underneath the body.

 

Here is the complete setup, just install...

2005 chrysler crossfire srt-6 engine and trans

 

https://www.crossfireforum.org/forum...n-srt-6-a.html

 

Chrysler : Crossfire | eBay

Guy will not part out... :-(

 

Try this, they guarantee HP
e-Racing :: OFFICIAL SITE :: The e-RAM Electric Supercharger from e-Racing Motorsports

 

Thats a nice setuo james, but you need the differental, wiring harness, and control units for the engine, trans, diff, and maybe the body control unit. That's what you would need to avoid reprogramming, which to this day, its seems only rudy can do.

 

The second V8 Crossfire ever built was done by one of our members in Germany. He used a CLK55 as a donor and swapped everything that involved elecrtrical so he has a great running car with no programing or other issues. The 55 n/a motor is a great choice. But don't discount the 500 engine I am running. Every SRT owner that has ridden in my car says it will beat them. No SRT has yet wanted to line up against me in a drag race. I guess no one wants to be famous for being the first SRT to lose to a n/a V8. they prefer 80 punch where I have a slight disadvantage against modded SRT's. I think MB underrated the HP like they have done with other cars. My stock 500 engine has more torque than a SRT but what is really important is that a SRT does not have a very flat torque curve and reaches max torque at 4,500 rpm. the 500 engine reaches max torque at only 2,500 rpm and maintains a flat torque curve to around 5,000 where is drops off slowly. With the 500 engine you only have to change the engine and ECU. No need to change anything else. the 500 engine combined with the lower gearing of the n/a trans and 3.27 rear makes for a real beast. 500 engine are dirt cheap now but n/a 55's are becoming cheaper by the day. Just try to find one with reasonable mileage. The SRT6 engine swap would be the easiest, but even with this swap I would not change the rear end and trans. SRT owners have been wanting to run a 3.27 rear for a long time but can't without changing the TCU and trans. I saw Rudy this weekend and let him drive my car at the dragon. he mentioned that the car felt like it had the perfect HP for the dragon without being overkill. I encouraged him to build a lower cost conversion with the 500 engine. Shoot, Even Carroll Shelby sells GT500 and GT350's. There is a ton more cost in buyig a 55K engine, tans, ECU, TCU, 3.07 rear end and a ton more work installing everything which also includes heat exchangers, intercooler pump and plumbing and it takes longer because there is very little room to work in. There are big legitimate reason for the cost Rudy charges compared to what I did on my own. Basically all I did was take out one engine and bolt a new one in. but I LOVE the results.

 

Just a thought..wouldn't I need two of these? Seems 500cfm would be where the Crossfire would be happiest? Based on "old school" 650 double pumper was a hot carb..sooo.. 650 diveded by 8 x 6 = Crossfire...

 

Just give me a little while I think I can make two of these work with just a little adaptation. I can fit them into the air intake system. It's got to be good for an additional 10 hp then add the 60 hp chip! It's twin speed for choice of HP addition.


Amazon.com: RoadPro RP-1179 12V Heavy Duty Metal 2-Speed Fan: Automotive

 

Lantana, am i correct in saying that you still have yet to resolve some electrical issues? My main concern is getting around having to have the ECU unlocked. I was under the impression that nothing short of having the trans and rear plus control units for both would do this. How you did it for $1100 plus the engine is beyond me, but that's my goal. I am patient and willing do do grueling labor by my lonesome, especially in the interrest of cutting cost. The 55 na is my ideal pic.

 

I did not change the rear or the trans. I didn't touch any control unit except the donor V8 ECU. I was patient and found the right deal that included the engine, ECU and wiring harness. It also even came with the engine cover/air filters. I lowered the cost further by selling the old engine. mechanically it is not too tough. There is some rewiring to do and if you can read wiring diagrams and match wires by function. My car runs fantastic and is my only daily driver. I have almost two years of driving with the V8 and it has been awesome. I just got back from driving it to the Dragon. I can't tell you a 55 wouldn't destroy the trans. If you change trans then you have to change the rear to 3.07 After do you lose the great n/a V6 trans gear ratios and rear 3.27, you will probably lose to me in a drag race. A 500 is an awesome engine if you want to save a ton of money and greatly simplify the install. I don't have eleltrical issues other than using a starter button to start the car. It can't start on the first push of the button but 90% of the time starts on the second crank. I would like to resolve this but it hasn't been a high priority for me. I am starting to get serious now. If you want to do this DIY, start with an automatic car, get the parts. Have Rudy, Jimmyskulls or Beckmann unlock it. Beckmann is now able to supply ECU that are partially programed to a Crossfire. They are using some of the coding from my car. There is still plenty of programing to do and you will need to have a cloned version of MB SDS to do it. This will cost about 800. With this this system you will have what you need to make it run. figuring out how to do it is the hard part. You will still have to program in your VIN and run drive authorization to have the ECU learn the antitheft data.

 

His car is my dream car.

It was my ride in Lantana's car at the Dragon that got me seriously thinking about a V8 conversion.

I LOVE the looks of the engine neatly tucked away under the hood, just waiting to bait some poor fool who THINKS he's sitting at a red light next to an average Crossfire. (Not that any Cross is average).

Ya gotta ride in Lant's car.... make sure he demos his brakes for you.