irablumberg

Anyone know if the 507 internals are the same as those on the Development Package? If so, does the extra 26 HP just come from a revised tune?

I've got a 2012 sedan with the Development Package and I'm certainly interested in another 26 HP if it is as easy as a software upgrade.

TIA

Merc63

Get a tune that's all 507 is.

SaphGreyC63

+1 Tune.

mthis

If u have devl package U have more then 500 HP STOCK. Mb claims it has 481 but on Dyno they put down over 410 to 420rw.

Pickles

Yes, it is a tune......but it would be nice to be able to go to your M.B. Dealer, & for them to upload the "genuine" 507 ECU data into your car!!!...That's what I would like anyway.
Cheers, Pickles.

mvagusta

this makkes no sence?false advertising?

natman316

mb underrates p31 so they can make more special editions and black series....its a normal m156 with forged internals +tune.

mvagusta

So the 507 has a better tune then the development package on a 2012 or 2013?

02Drunkenup

nobody knows at this point.. if mthis is right and the P31 cars make 500+ (and it seems they do) then we don't know where to put the 507 without dyno testing

my guess is that they're identical to the P31 cars with how MBZ likes to play with published figures for the sake of marketing. In a perfect world all C63 variants (BS, 507, P31) would make considerably different outputs

Pickles

I think the outputs will be different.
Not sure about P31 being under rated either (it'd be great if they were, because we've got one).
I think M.B. would have to be pretty specific about advertised outputs, so I reckon their quoted outputs would be correct.....but it does appear that this is only the result of ECU "variations".
Cheers, Pickles.

NellyRod

From the info released so far, it seems to be a C63 P31 with a more aggressive tune. I would bet it's the same tune they put on the BS. AMG is becoming more like Apple. It's disappointing to say the least.

mthis

Stock c63 vs c63 p31
And
Same stock c63 with a tune vs the same p31.

mthis

Dyno of the 2 cars in video

NESHO

That does not make sense. According to the dyno sheet you just posted a tuned non P31 C63 should pull on a non tuned P31. In the video I see them as being equal.

mthis

The 2 car in the video are the same as the dyno.
The P31 car guy is a member on here and the regular c63 the guy is a tuner on here.

mthis

https://mbworld.org/forums/c63-amg-w...e-answers.html

mthis

No Dyno sheet but this is what owner claims

If that true 431rw by 18% drive train loss is 525hp

https://mbworld.org/forums/c63-amg-w...-1-4-mile.html

mthis

This is very good info

https://mbworld.org/forums/c63-amg-w...0-c63-p31.html

xtyper

The non-p31 car in the video is actually mine, not Jeremy's.

CBS

Soooo... the Cliffs notes are... that in terms of pure power, C63 vs P31 vs BS results are all more or less equal given a proper tune?

Of course, that doesn't say anything about the longevity of the engine since presumably the versions that come from the factory with higher HP also have internals that can handle that power for the lifetime of the car, while those that are tuned have a higher likelihood of facing issues later in life.

I don't know anything. Just asking.

NESHO

I believe that those are the same cars from the dyno. What I dont understand is how come a tuned non P31 is making 20+ WHP on the dyno than a non tuned P31 and yet they are equal in a race?

rage2

The 6.2L V8's that's in every other AMG doesn't have those internals, and all put out 500+hp. E63, CLK63, SL63, S63, CL63, ML63...

Pickles

It would be interesting to have a standard B.S. on the same dyno to see what it came up with?
Cheers, Pickles.

OH_NAH

So does that mean that the P31 has the same forged internals as the 507.. using parts from the SLS ?

irablumberg

Yes