PJmak

I have an engine upgrade in mind for my c43, thinking of a E55 motor but I wanna keep it n\a for maximum throttle response and feel.


How much power can I make with this motor while keeping it n\a and what are some best mods and ECU tunes I can get?

Esh

Send AMS Performance a PM, they will help you out.

AMS Performance

realistically most you can achieve without going too crazy on the motor is about 410-420HP and that's throwing everything at it. 400HP is relatively easy as long as you do all the common upgrades available for it. The biggest factor on your specific application for potential gains will be the exhaust system. If you do long tube headers with a full custom exhaust system you can reach those targets with ease but it will cost a bit more. However, since you are doing a motor swap anyways that would be the perfect time to do so anyways.

With that power to weight ratio though you should be in a whole new performance catagory, mid 4's & high 12s would not be unrealistic (assuming you can get traction )

Keep in mind though... you may want to go ahead and swap over a 5.5L tranny as well and do the whole drivetrain since the C43 trannies are notoriously weak, where as the 55 trannies are pretty much bulletproof.

just a thought...

PJmak

Thanks im getting so close to doing this swap. I already have the W210 e55 transmision in my car so thats out of the way

ANy intake mods?

ABALONE

With headers,downpipes and ECU tune i was able to do this before i mounted the Supercharger.

W210 E55 VS Audi RS4 V8

Or

W210 E55 Vs BMW M5 E39

Or

W210 E55 Vs M3 E46 SMG2

Now the car is alot faster with the S/C, BUT i loved the car in it's N/A appearance. You could just hit the gas over and over and over and it still delivered the same amount of HP each time. With the S/C you have more heat and the cars performance varies alot more due to the weather outside etc etc.

RAFFIE55

In those drags what was your top speed in MPH? I suspect you don't have the speed limiter like mine after the ECU tune.

slowsky

i'm curious ams...how does a stock w202 c43 weighing 3448 before the 5.4L and other upgrades get mid 4s and high 12s but a stock w208 clk55 weighing 3444 with the exhaust and ecu upgrades, not hit low 4s and mid 12s?

seems like the w208 has a potentially better power to weight ratio but still can't hit low 4s without nitrous or forced induction.

ABALONE

In those races the top speed where 155 MPH (250 Km/h) before breaking hard

saintz

A big part of the 0-60 on any of the 55 N/A motors is going to be traction. You're going to be able to spin tires for at least the first second or two of the run (meaning almost half the time to 60). The W210 has wider tires than the W208 stock. The amount and type of rubber should make the difference between a low/mid 4 second and a 5 second 0-60 on any modified 55 N/A.

AMS Performance

No intake mods required... almost all the power to be freed up is on the exhaust side, mass reduction, & ECU upgrade. AMGs come pretty much perfect from the factory when it comes to intake design... don't touch it.

AMS Performance

The Mid 4's high 12s comment is for a C43 w/ 5.5L upgrade + mods (400HP+). That does not apply for a normal C43 of course. The W208s, W210s (and pretty much all NA 55 AMGs in the 3400-3600lb range) can get into the mid 4s high 12s NA but its much harder to break below barrier that due to various factor (such as traction & etc).

With that said, modded NA 55 AMGs can take down much newer E92 DSG M3s and etc, so for the money... they are one hell of a performance platform and can keep up with the best of today's technology. They really are the refined muscle cars of the 21st century.

slowsky

so a n/a 55 amg can take down a newer m3 by upgrading exhaust components with ecu tunining?

AMS Performance

Stage 3 or Stage 4 NA 55 AMG can take down lightly modded DSG M3s for a fact (especially from a roll) ... ask me how I know

... surprisingly almost no ground was lost on the shifts too due to the constant acceleration characteristics of the slush box (even before tranny upgrades), wasn't expecting that...

as I always say... never underestimate the importance of torque

ABALONE

Maybe 0-100 Km/h (0-60mph) and a bit up if you get the jump, but not after 100 Km/h from a roll. A new M3 V8 will eat a Audi RS4 V8 with an ease!!, and you see in my race how close i was to the Audi RS4 V8.
With my N/A mods i didn't have a chance beating a new M3 V8 420 HP from a roll.

slowsky

rs4 1/4 is 12.5 and the m3 1/4 is 12.6, i'm assuming no n/a 55 modded can reach mid to low 12s in the 1/4?

ABALONE

Sorry forgot, in US everything is about 1/4 races I ment from a roll. I've been on TONS of GT-Board meets with M5board and i know a modded E55 N/A doesn't stand a chance on a roll. 1/4 races might be a different story.

A N/A modded E55 would have a hard time reaching even in to the 12's. Maybe high 12's if you get a great 60'ft and you have all the mods. Low/mid 12, not in my opinion.

AMS Performance

From a roll 30-90, AMG definitely had the advantage. If you take away the DSG's launch advantage and super aggressive 1st gear, you start to realize just how important of a factor that torque really is. now 120mph+ that may be different story, but for any realistic real world accel runs from a roll, AMG has the advantage

You can acheive high 12s w/ NA 55s. A few have achieved 12.5 with major mods, but anything below that is not possible correct. With that said, for AMG cars that are almost a decade old that can keep up with the best of modern day technology for only a few grand in mods... that's impressive to say the least. AMG engineers were really ahead of their time back in the day.

CharlyE500

N/A 55 engine in C43 body will be a different story. E55 should weight 300Lbs + more than C class. C43 with 400Hp + that will walk a M3

JamE55

Now imagine if these 55's are using F/I!

AMS Performance

A W202 C55 and W208 CLK55 are almost identical cars. Afterall the W208 shares most of the W202s infrastructure anyways and both weigh almost exactly the same. Therefore, a modded W208 CLk55 will be the most accurate basis of comparison for the W202 C55 (correct the W210 E55 is in a heavier class and therefore is a bit slower).

hope that helps

AMS Performance

you know the AMS philosophy... FI is cheating

... jk lol

JamE55

Only when you don't know what's under the hood! LOL!

saintz

Seriously, someone needs to do a rear turbo setup.

JamE55

Wasn't what's his name Max Hughes doing this? Whatever happened to that?

saintz

He was working on one for his bosses E55, but I don't know if he completed it. He was up for doing it if someone had a car they can leave with him for 2 weeks and was willing to pay parts. I was thinking about making a kit, but wasn't able to get the car to him (Indiana, I think) and leave it there.

He turbo'd his E320 inline 6, but there's enough room under the hood there to not have to do rear turbo.