khmergod

93 Octane. All stock. 75F-80F. 6800 RPM

1st Run
377WHP
329TQ

2nd Run
394WHP
346TQ

3rd Run
396WHP
347TQ

4th Run, 80F. If it was colder...
406WHP
354TQ



Happy with results. But first run did break my heart. Will post a scan tomorrow when I get to a scanner. Technician/Owner mentioned that he's done thousands of runs and they have a solid ~18% loss on their Mustang Dyno. Only two Mustangs in Houston. That would equate to about 495BHP. Only one other C63 was ever dynoed in his shop and it only did ~365WHP and 330TQ final run and did not have P31. They took it to a dynojet and it did 390WHP. He told me that my car would read 430 low to 480 high on a dynojet. Either he's crazy or my car is a freak?

P.S. He also mentioned that if it were in correct winter temps I would read up to possibly 20WHP more. He also asked me what it ran before my mods after the final run . All this talk makes me want to track it.

James@ACG

very nice sounds very healthy, a stock C63 with P31 puts down roughly 387whp and 364tq on our mustang.

Pickles

Interesting....What would you say that equates to at the fly, & have you any real comparisons between a "stock" C63, & the P31 version.....in other words, at the wheels, what, in your experience is the difference, in numbers?
Cheers, Pickles.

khmergod

I wanted to squeeze one more run but the oil was reaching 250F+ and didn't want to overdo it. 5800 on odo. Beat her since I had her.

Merc63

Take it to the track.

khmergod

I just might.

Merc63

I dyno'd my car once, it said 360RWHP. That was tuned. That works out to about 440HP at the crank..

Which is not true at all.. Dyno's are junk. I ran 119MPH at the track tuned and 114-115MPH stock...

khmergod

Made a mistake about the stock C63. I meant 330TQ and 360WHP. Will edit when on a comp and not a phone.

khmergod

But they are useful for mods and such. I know there are infinitely many variables that alter readings.

khmergod

Updated with chart.

1st amg

WOW, Nice numbers! Thats a very healthy motor

Mort

Nice numbers! Thanks for posting that information. Always good to have some sort of idea of what the car is making.

GL at the track if you go!

khmergod

MB is very conservative at stating their power ratings. Another P31 to add to the list to confirm.

ZephyrAMG

Nice power!

khmergod

Thanks everyone for the comments.

xtyper

Great numbers!

Now get some headers and let the real fun begin!

Pickles

So, with an absolutely STOCK P31, you've got 406HP at the treads. What did your dyno man say that this would equate to at the fly?
Cheers, Pickles.

Even Money

18% driveline loss is typical.

khmergod

He told me I had ~500 BHP in most temps. Zing.

khmergod

I doubt the BS is 510bhp. Probably closer to 530-550. They can't let us know on paper that most 6.3L are almost as strong as the 200k+SLS.

Chocofishez

Makes you wonder if the 563 hp quoted for the SLS is legit...

They're going to push the motor to 100hp/l for the SLS black. Who knows which motor is truly wrung out?

Pickles

Thanks for that......Nice feeling I reckon, knowing ya've got a big "500" under the bonnet!!.....And that was with a dyno run just basically seeing "what ya've got"....with no mods?
Cheers, Pickles.

khmergod

Had to make sure MB wasn't blowing air up our *****. All stock including charcoals, but I do have LSD.

khmergod

When I get a chance I might go do some more runs and remove the charcoals though. I'll find a day where the temp is the same.

Pickles

L.S.D....yeah, gotta have one...can't understand why it's not standard on the C63.......geez, in Oz, we've got cars costing a quarter of the price...& they've got an L.S.D.
Cheers, Pickles.