xtyper

Another local C63 (4Ramin) came by the dyno shop (MD Automotive in Westminster) today while I was dynoing and we got to compare results, same dyno, same operator, same conditions.

His car had the full MHP S2 package w/ 100 cel cats and ROW airboxes, running on the 93 octane tune (mix of 100 and 91). Graph below shows a comparison of each of our best runs. My car had the mods noted in my sig. My run is 004 and his is 035. I think 4Ramin will better my numbers once he updates to Andy's new tune, as the file run here is the old Techtec version.

Great meeting you 4Ramin! And great group of guys over at MD Automotive.

Obviously both cars look really strong.

Enjoy!

bhamg

Congrats...very enlightening comparison...thx for doing it!

C63newdude

So you hit the 500whp mark bro? that is insane.. congrats!

xtyper

Yep.

Thanks Carlos!

callmiro

I'm thinking if he went catless and dumped the 100 cels, he could make up that 10-11 hp difference maybe....


Impressive results for both!

C63newdude

Hey Eric,

what has change on your set up to go from 472whp/431lb-tq to 500whp and 454lb-tq?

https://mbworld.org/forums/c63-amg-w...hp-431wtq.html

It seems like all your cars and all your dynos are dyno queens with excellent dyno numbers... do you do good break- ins?

xtyper

Changes since last dyno are ROW airboxes and aggressive driving on way to dyno.

BenzoBoi

Some great numbers!

dodger63

Yea not stirring as both seem great, but what exact mods does 4 have tune headers? You have xpipe cat less and row airboxs..

dodger63

O sorry just reread,, great results these 2 cars are strong and seem like they should both run great.. Lmk when your hitting the track

4ramin

Eric,
It was great meeting you, I'm really glad you asked me to come. Both cars did great. I really wanted to see how the car will do with 100 cell cats, they are v banded so very simple to remove. Going back next week after my Xpipe install and with the cats removed. I really dont know how much of a impact the cats had but i'm really happy to pull 489 with the cats.

Merc63

Current:
2011 C63 White/Black
Charcoal Deletes
AFE Pro Dry S Air Filters
ROW Airboxes
MBH Full-Length Headers
MBH Catless Midpipes
MBH X-Pipe
Kleemann Stage 2 Tune
500whp/454wtq (SAE Dynojet 248)

Gone:
2010 C63 Black/Black
Charcoal Deletes
AFE Pro Dry S Air Filters
MBH Full-Length Headers
MBH Catless, Resonated Midpipes
ACG Stage 2 Tune
464whp/416wtq (SAE Dynojet 248)



Kleemann plus these airboxes net'd 36WHP??? That's quite the difference...

Perhaps this new dyno was a bit happy.

Sorry, not trying to be a hater, just seems like a bit much. You're almost at Dodgers numbers and he was running 100oct and race exhaust.

dodger63

It wouldn't be right to compare synod on different days in different states, these look like strong healthy numbers, dynos are dynos

dodger63

We also have very similar setups, the xpipe adds allot of the hp of the race exhaust,

xtyper

Well, we chose this dyno because it was located about midway between me and 4ramin, and also because it came highly recommended from others. This is the same dyno that Edmunds.com uses for all of their testings, and being a Dynojet 248 cannot really be manipulated by the user. I should also mention that the airflow from the fan used here was much better that the shop I usually go to.

But for comparisons sake, rest assured that I intend to take the car back to my usual dyno next week when the shop owners return from holiday break. But even if I were to pull slightly lower numbers there due to subtle dyno variations, I've got to think that the results are still indicative of a strong running car.

Regardless of absolute numbers, I'm very pleased to see my car hold it's own in a direct comparison to a full MHP S2 car with ROW Airboxes and 93 octane, as we all know how strong those cars typically are.

dodger63

No doubt they are strong any video or pics of the fan setup, my car was dynod twice well once with me and more recently as you no in ohio and I'm kinda pissed they had the crappiest little fans

xtyper

As another point of reference, just found a thread containing a recent dyno of another member's c63 w/ Kleemann K2 Package at this same location.

In the thread link below, looks like his best run was 449whp/397wtq SAE corrected, so I think our cars did amazingly well in comparison. His numbers are also right in line with what I would expect for the modifications.

https://mbworld.org/forums/cls55-amg...63-modded.html

Sincity

Where is this dyno located?

xtyper

MD Automotive in Westminster, CA. Great shop and the owner Mark is a really nice guy.

Merc63

Dodger: What Xpipe are you running?

Does it also quiet things down a bit too?

PetroC63

Nice comparison Eric!

I'm curious if 4ramin chooses to update to the new MHP tune to see what those numbers equate too on the same dyno.

PetroC63

There is nothing quiet about dodgers car.

PetroC63

I was disappointed with the fan(one) too. Definately more power with better/more airflow.

dodger63

The mhp race exhaust has a built in xpipe there is nothing quiet about my car at all

bhamg

I find the shape of the torque curves most interesting, being virtually identical. Given recent speculation about one design being better than another in the low- to mid range these results suggest the opposite.