c63ukraine

Hello Everyone. Just got back from Dyno. The dyno is Dynodinamics 4wd 2000hp windows based last generation. Mesured at 4th gear M mode.
The whp is 373whp. The AFR is crazy reach as far as I see. I bet on 12-12.4 if will go 420-430 whp.



crank HP as you know every dyno does it its way. this one got 479 crank but I think 460-465 is fair.

Vadim @ FD

This is excatly what we are seeing on Dynojet.

mid370s.

A/F is set to be safe. Very common on MB/AMGs.

Leaning it out to low13s, will add some power, but not 50HP.

MHP

For future reference try to dyno in 5th gear with the 7As, 1:1 gearing always yields the most accurate results. I have a dual band A/F in my C63 and was seeing around 13.0:1 at lower rpm, mid 12s until high 6000s where it dropped into the high 11s.

c63ukraine

It is my friend dyno and I just came by to mesure the car so I needed to do it fast and we tie the car down only at the rear so we didnt want to go all crazy 5th gear. I did a few puls on 3rd and few on 4th. afr was always like this and power was close to this numbers all the tyme on both gears.
Maybe it is euro version comes richer? or somones wideband lie a little. No metter. still has to be 12+

MHP

I'm using a FAST Dual Band welded directly behind the primary cats (when I put headers on they will be just aft of the collectors before the primary cats). I'm guessing you were using a tailpipe A/F meter?

c63ukraine

of course.