Pertplus

So today the car was dyno'd comparing: 1) stock (with my MBH LT Headers and 300 cell cats, charcoal delete, european air filters, akrapovic slip on exhaust); 2) the Powerchip Stage 2 tune (same); and 3) the ACG Stage 2 Tune.

I know Xtyper had a bone stock dyno of 363whp/343wtq, so that might be a more apt comparison since my "stock" had headers, etc.

I am sure James from ACG will be able to add any technical commentary that are beyond my knowledge of what these numbers really mean and answer any questions.

I am Jeff

So the ACG tune got you an extra 5 hp?

Pertplus

And about 12lbs of torque...

xtyper

Congrats Pert. Very nice numbers and smooth curves.

I'm actually driving down on Tuesday to have James reinstall the ACG tune after a dealer reflash and then heading over to that same dyno (assume they were done at The Dyno Shop) for some power pulls. With a similar setup to you, will be anxious to see how the results compare on the same dyno.

jspAMG

They need to start making progress on my car too!!!

Jim

Case1906

What was the reason for the dealer reflash or was it inadvertent?

Pertplus

Thanks!! What is actually interesting is that while the "Peak" gains over Powerchip may not be huge...where I see (and definitely feel after driving) the difference is in the 1000-3500 rpm range. My car feels more responsive (almost scary) and feels quicker in the lower part of the power band. Since I am not running catless, I am still happy with a approximately +80hp and +50tq gain over what probably was bone stock (going by your car's numbers). James knows how I like my car to drive and knew that I didnt want him to push the limits just to squeeze out a couple HP there and a little TQ there...what I like is to feel that my car has some beef in the 2000-4000rpm range...in addition to what it has in the higher parts of the band. Overall, very very happy so far!!!

C63newdude

WOW!! the last attachments shows it all. The gains from 2000 to 6000 rpms are noticeable on your dynosheet.

C63newdude

I noticed this:

https://mbworld.org/forums/c63-amg-w...cgsd-tune.html

xtyper

Glad to hear it. Now update the tune noted in your Sig.

BenzoBoi

Very nice my friend!

_AMG_

Nice gains!

Pertplus

Good call....done and dooooone!

ZephyrAMG

Nice job.

DAMN _AMG_ your sig picture is SICK. SICK I TELL YOU, SICK.

Pertplus

Yeah, I was going to suggest he and I do a photoshoot together but not sure how mine will stand up next to his....definitely an admirer of AMG's setup!

Pertplus

Holy f-ck *****!!! I just drove on the highway in comfort mode/automatic, and even that was a noticeable difference. Before I would have to press down to get to 80mph, and now, I barely apply any pressure and the car just hauls ***. Yes, yes I know, who the hell drives in comfort mode, blah blah blah...but I wanted to see if the car felt differently in the more tame modes when it is between 2500 and 3700 rpms...and yes, I can feel the difference! Big props again to ACG!!!

James@ACG

Thank you for the kind words matt, glad you hear your out driving and enjoying your beast!

Have a great weekend.

_AMG_

Haha, Thank you very much kind sir!!

Definitely!!!! I would love to do a photo shoot with your car.
Always wanted to see it in person, One of the nicest 63's ever.

REZ-RACER

I want the headers and a stage 2 tune like yours but that will haft to wait till November.
bye the way your car looks sweet got to see it at acgsd last time I was there!!!!

BK63amg

Nice numbers! How does the car sound with the LTHs? Are you experiencing any cabin drone? Is the car excessively loud at highway speeds?

jakio

Nice number for sure.

Pertplus

Car sounds great...I have had the LTHs since January (but then I had the Powerchip Stage 2). No cabin drone, although when I use the paddle shifters, the car gets super loud on the freeway (in a good way) but probably could cause some eye rolling from passengers not so enamored with the sound of a beast sports car.

With the ACG tune, I notice that my car sounds louder on start up and at lower rpms. Again, very happy with the results.

xtyper

Hey Matt, I forgot to ask, what gear were these runs done in?

palerider

so what is the acg tune?
is it separate from a kleeman or renntech tune which is what is see in the sig from the acg guy who flashed this thing?

i wish we had a sticky thread for the tunes like we do the headers.

Pertplus

Not sure....will ask James today when I drop my car off for the last piece of the puzzle...my new bumper