W203E35

6-7 psi? Isn't that pretty low? I heard the stock supercharger is 11psi

What are you putting down? Sorry if I may sound confrontation. I'm interested in turboing my car as well thus soo many questions.

TurboC230Coupe

Not at all, I am more than happy to answer all the questions. The stock supercharger does not put out that much PSI, I can't remember the exact numbers, but I'm sure someone on here can tell you what it puts out on the M111 engine. Also, when switching the charge piping, the intercooler, and MAF (I put in an S55 AMG MAF), you increase your flow rate (CFM). This is also the case when switching the supercharger for a turbo. I'll run and check the exact turbo I'm running, and you guys can find and compare the specs, I did that about 2 years ago. Also, you get rid of the "parasitic horsepower loss" from using the belt to drive the supercharger.

There are other options too, you can run a twin-charged vehicle (don't suggest it) but I did see a Lotus with a supercharger and a turbo set-up on it. I don't have that kind of money to support doing that mod.

TurboC230Coupe

Oh yeah, and I have yet to dyno it. I am not ready to until I have my fuel stuff figured out and some new rubber put on.

nrg_mike

Twin charged cars are fun but space is a pain in the butt. Glad to see you chose nitrous to help w/ the turbo lag too.

TurboC230Coupe

Yeah, turbo lag sucks. I had a 3000GT VR4, the lag was not nearly as bad. The twin turbo set-up I ran made it perfect. That dyno'd 320 AWHP. That was fun, heavy, but fun. A small shot of nitrous is nice, good for pre-spool.

W203E35

Nice, you have a good setup here. I'm not sure about the m111 but the m271 runs at 11psi.

http://www.mercedesmania.com/forum/i...ic=1058.5;wap2

i'm guessing the m111 is 7psi.
https://mbworld.org/forums/c-class-w...r-removal.html

they talk about pushing it to 9psi

TurboC230Coupe

Well, there you go. Thanks Karo.

XsuperbeeX

oh god not you... :facepalm:

TurboC230Coupe

Alright, I think you kind of lost me on that one... "oh god not you...:facepalm"
Either way, we have to do what we have to do, I'm glad that I found other financing option for the business and that I found a better differential that worked on the car. I love driving it around. It's different, it handles great, and I would have totally missed it if I had sold it. It has way too much time into it, not to mention money! So...fate has it sticking with me for the long haul!

nrg_mike

? There seems to be history. You guys didn't date once or anything did you?

omg its nate

haha, I remember.

TurboC230Coupe

Hahaha, nice. But that's a definite negative.

TurboC230Coupe

Now I'm thoroughly confused.

XsuperbeeX

When you post your car on ebay... I give you props for your performance mods... but for your appearance... is WTF was he thinking type.. the alignment is way off... if you want amg... there is amg body kit for coupe...

W203E35

Hey Mike, remember when me and you we use to date? Then I passed you on to Patrick? Miss the good ole days

Where is Roland dude? I use to tap that couple of months ago

Patrick is one wild goose

ChristianJan

Hey uhm, don't mean to change subjects, but I'm trying to figure out what happened to your sale thread?

nrg_mike

Yah but I got tired of Patrick beating me... and his obsession with me calling him "papi chulo" got old (seriously why would he use the "Mexican Hat Dance" as baby makin music?). It was weird. I must say. I miss the good ol days. You were much more gentle... well... except when you were drunk.

TurboC230Coupe

Oh okay, I understand now. The reason the AMG kit for the coupe wasn't used was due to the accident I had down in Florida. The damage to the front end was easier to use parts (which were/are more available) for the sedan. Thus the change in the front, the fenders are also about 3-4" shorter, I personally like the look of the front. But, I'm glad you addressed that topic, and I really didn't know about the AMG kit for the coupe (note to self). Thanks.

tommy

That sounds like a lot of performance mods to go through. Did you ever think to yourself, "I could have an STi right now that would kick this car's a$$ for much less money"? That's what I'd be thinking.

I've done mostly bolt-on stuff, and when I think about all you've done, it just seems like the wrong platform to start off with. But that's me - do have to give you for all of the work and research you must have done.

TurboC230Coupe

The thought of a different tuning platform has crossed my mind several times, but then again, I have gone that route before on projects:

3000GT VR4 300+AWHP dyno'd
Subaru SVX w/STI 5-speed
Mitsubishi Lancer
Honda Hatchback JDM Spec
Ha, even an F150 Lightning

My original intent with the Mercedes wasn't to tune it, not to mention make a project out of it. It was actually just my daily driver. I had done the suspension, stereo, nitrous, and tint, but after the accident I had the whole front end off, so I figured, why not.

Jerkin

That Brabus engine is stupid sick!

Jerkin

Do you by any chance have a build thread for the turbo conversion?

tommy

If anyone's still wondering about this, my M111 started about 7 - 7.5psi, and is now a bit over 10psi with OE Tuning's work.

Jerkin

Hey tommy, after the tune are you still running lean?

tommy

I get no codes, and gas mileage has stayed about the same, so it's probably as lean as it was before; I do think that OE compensated for it.