Razzy

Alright, so I went in to Eurocharged today and let me start off by saying that the guys there were FANTASTIC.

I've had my C63 for a month and it's sitting at stock (besides tints and clear corners) for a month and was really excited to get this tune up put on and get rolling. We did a dyno pull on their DynoDynamics and recorded 343 wheel horsepower...hmmmm that's a bit underwhelming for a P31 I thought, which is rated at 481 horsepower. Well let's get the tune on and do a pull to see the delta. Well, after the tune, I barely increased give or take 15 wheel horsepower. WHAT THE F....??!

So Slav at Eurocharged, says "hmmm, this could be your air filters", pop the filters out and they are dirty and mucky. Luckily they had a set of semi-used ones but a lot cleaner than the current ones on the car. He pops them in and does another pull. Right away it did a 380 whp. Did another, and went and ended it off with 388 whp.

Slav at Eurocharged said that the DynoDynamics equated for 25% Drivetrain loss, so if my math is correct that is about 480 Horsepower, which is what the car is rated for anyways. Now torque has gone a bit as well. I'm a bit underwhelmed at the results, I was hoping to be in the 500+ horsepower bracket AT LEAST.

Now my question is, what airfilters should I look into, and what the hell could possibly be the cause of such underwhelming numbers? Now I can for sure tell the tune is on there because the car is more touchy under throttle, downshifts are louder, I can feel a slight increase in torque, and hell the exhaust is even louder!

I'm new to all this so please to chime in!





C63 P31 DynoDynamics With EuroCharged Tune

solekeeper

wow a 40hp pick up from getting rid of dirty filters... crazy.

anywho, hope someone can get this sorted for you. I'm interested in hearing the cause.

Razzy

I couldn't believe it. I guess I have some work to do on the car now ugh.

Guys at Eurocharged said that I should not only get my filters changed but also get the cats checked/cleaned, transmission and LSD Diff fluid done. How does that sound for service for a car that just hit 50,000 kms (31,000 miles)?

Conv_GSDriver

https://mbworld.org/forums/c63-amg-w...dyno-test.html

and......

https://mbworld.org/forums/c63-amg-w...od-my-car.html

zibby43

Isn't the Dyno Dynamics dyno known as the "heartbreaker dyno"?

That could be one issue right there.

The tune definitely "took."

avery.whss

not sure...I ran mine on a dyno dynamics and ran 413whp stock and 487whp after the tune

I'm running eurocharged right now too..I raced a stage 2 M3 the other night and completely murdered him...so the tune for sure adds HP

Maybe you live up in high elevation...a month ago some guy posted a video of his C63 and a evo and the evo kept up...he's in alberta, I did a pull with a tuned/full bolt on evo before I did the M3 in and the evo didn't even stay close

Not sure whats going on with the C63s and the tunes..seems theres been a few lately the tune hasn't really done much too..Hell my car chirps brand new tires shifting from 2nd to 3rd lol in the dry

Maybe you should go beat the hell out of your c63 for a few days and re-dyno it...red line the hell out of it..make the pipes glow

wampire

Well i did a dyno before mods and got 453HP on engine and then we install the iPE full system and we got 570HP on engine, now couple of months later we did i dyno again and car makes only 520HP. Alos just to say we did a dyno in 5th gear. Changed the tune from different company to Eurocharged but still almost the same numbers. I personally prefer this tune cause car is much more easier/nicer to drive then previous one but still have to find out where are my horses did i run 0-100km/h in 5.2 sec but was expecting 5 or less

kimeran

Yeah your numbers seem really low, even with the tune. I don't think its the tune, but more to do with your car. As you said, filters, cats, etc.
I made 373whp stock(I think), and that's at 5577ft above sea level.

Razzy

Well it sure broke my heart

Razzy

I know I should drive it a bit more aggresively beating the **** out of rampantly make a difference?

jcfay

You don't mention anything about the service history of your car. I wouldn't have gone in for dyno testing (or be driving around, for that matter) with nasty, dirty air filters but I'm a bit more neurotic about car upkeep than some. It sounds like they suggested other standard maintenance as well that might help with your #s a bit. How many miles on the car? Has it been serviced regularly and to spec? These can all affect HP/tq so that'd be the first place I'd look. As far the Eurocharge tune not taking, that doesn't seem to be the issue here at all - besides, they would've noticed that for you anyway. How has the car been maintained?

shivsiddh

wait what? you did 413whp stock?? and 487 whp with just a tune?? How is that possible

Razzy

I got the car a month ago, 1 owner and has 50,000kms/36,000 miles as on odometer as stated above. As for service, I am not sure as to what has been done besides the pads, and tires and oil change. If I go into the service menu in the car it says service A0 due in 8,000 kms.

Besides that I have no other info on the history. Does MB cover anything 'cat' related under warranty?


his numbers DO NOT add up. No way that is possible or accurate. The guys at eurocharged said that stock C63 P31 on DynoDynamics will do about 360whp. A Base C63 would be even less.

Anatoli

Here`s my C63 PP+ mit ECU

Razzy

that's impressive, that's where I was hoping to be after my tune. How is your maintenance, airfilters etc

BLKROKT

Subscribed. My car is also a 2012 stock P31 Coupe. Just serviced yesterday, and was running GREAT at the track last week (12.2's @ 116+mph). I have the Eurocharged handheld right here begging to be put on. Need to get to a dyno to get the baseline numbers, but like you, I am expecting a significant increase with the tune. Will let you know when I get my files how it works out...

avery.whss

Actually base lined at 430 my bad...I have ROW boxes and 2nd cat delete now too, went on a different dyno at a different company and I ran 464whp and it was a 35c day so pretty hot

I raced a stage 2 M3 that claims to have 430-460whp (i guess it gets heat soaked quick) and I walked him with ease..wasn't even in sport/manual mode. Kind of embarrassing actually

Dont ask me how it's possible...I just am presenting what the dyno shows...I'm not a engineer, Maybe you guys need to beat on your c63's more...I basically redline mine 5-10 times everytime I drive it lol maybe thats why the pipes get so hot my friends can't even stand within a few feet of the driver or passengers door they claim it "burns" their leg hairs

Also EC claims 540hp on the crank...Unless our cars rock 30%+ loss (which i've had tons of car guys tell me it's highly unlikely the c63 has even a 20% loss) then 440-460whp isn't that unachievable..I highly doubt the c63 has 40% power loss

http://www.mk5cortinaestate.co.uk/calculator4.php

if you do 450 on the crank...it's 377-ish whp...so it's not that far fetched

shivsiddh

But you said your stock is 413whp

avery.whss

its 433...it was like a year ago when i had it dyno'd i forgot until i looked at the sheets today 486 after the tune and air boxes and filters

PanzerLehr

A colleague of mine has a fleet of AMGs (not internet savvy or he'd be on here) and they all dyno all over the place (5%-35% drive loss) and he does no mods. Perhaps it is the car, perhaps it is the weather or perhaps it is the dyno but whenever anyone says +/- 15% it doesn't surprise me at all. And when we are talking about a giant V8 smashed into a little car there are certainly a lot of variables.
I want to get my car dyno'ed just for kicks but whether it says 350hp or 400hp i'll be happy with it because at the end of the day I still own and drive a modern marvel.


To the OP: I would just drop the $$ and get the biggest service possible and make sure you are starting fresh and not trusting the last owner.

Ingenieur

Let me get this straight
All the same dyno the same day
Baseline ~343
W/tune ~ 360 plus 15 HP (20 at the crank)
Replace air filters with less used ones -385 Plus 25 HP (30-35 crank)

So the estimated baseline w/o the tune but with the filters ~ 365-370
Either way tune is worth 20-25 HP or so tune only

This makes sense if the tune replicates the E63 oem tune
Basically the oem C63 is the E63 tune with the throttle limited > 5000 rpm

E63 ~ 515 HP
Close to the P31 480 plus 25 from the tune

Razzy

Well like I myself am seeing so much of a delta in numbers it's freaking me out. The fact that it's a handbuilt engine is another variable. I know the tune "took" but I really was set on a speciic number (500+ hp) that even though the after affects are so far great, I am still a bit heartbroken (**** dyno dynamics lol). I guess I will have to see what I can do about the servicing, the reason ai bought the car because it was a early 50's italian guy and it was in fantastic condition and ran amazingly.

I could throw money at it but my whole thing was not to be "wasteful" in terms of money spent on the car. I will be getting new AFE filters and aa for the LSD fluid, tranny fluid, and cat/exhaust checked I will need to look into the costs for that. Canada isn't cheap lol.

Razzy

Yes, the delta and "gain" is good. But initial whp on baseline is very low for a P31. Hey if i got 60p out of the tune I would be more than happy.

AMG Boost

How do you even check if the cats are plugged? I would just save money for headers
Also surprising the air filters made that big a difference!

PanzerLehr

I just got the tranny fluid changed on a 2013 VW Passat TDi with 50k miles.. jup.. 50k miles.. the entire service really - but wow what a difference it made it is like driving a new car. The LSD is an easy job you can probably find a few DIY on here and across the internet. The filters will help. The trans tho.. something I will never touch myself. May want to clean the MAFs since the filters were in bad shape. After you get around to it all you may have better dyno results.
Or just go beat the car as hard as you can. I am not even 1k miles on my C63 but I had a C32 and if I didn't beat it hard at least once a week it ran like garbage.