C63-AMG

Had my 2009 C63 on the dyno this week and the numbers seem lower then I expected. 317HP 312tq. Each test was done in 4th gear. Don't recall if ESP was set to OFF or not. I know every dyno is different so +/- 20HP can be expected. The car is completely stock. What have other C63 owners experienced?

I do have plans for a full iPE exhaust and ECU tune coming so I will post those numbers once I have them.

If you are in the Boston / New England Area let me know.

Thanks...

Merc63

Dyno sheets, worth less than the paper they are printed on.

tfthach13

It really doesn't matter what your stock dyno sheet reads out. All that really matters is the gains/difference that you get with modifications, as in the exhaust and tune you're planning.

No two engine is the same. Every engine is different: some read higher, some read lower. Plus, there are numerous factors including the conditions when the dyno was ran, the type of dyno itself, loss of power due to mileage, etc.

I can't really read the dyno sheet because the image isn't big enough, but stock should read around 378 HP based on this: http://www.mk5cortinaestate.co.uk/calculator4.php

But then again, this is just an estimation.

bluejae

what are the numbers? your attachment isn't big enough. edit your post to include the numbers please.

and from what i know, mustang dynos read pretty low. i think mine showed 350ish hp stock

C230Kompressed

I agree, Mustang dyno's read the lowest, about ~20-30WHP lower than dynojet and about 40-50whp lower than dynapack.

It also depends on your elevation, the last time the dyno was calibrated? weather? What gear the dyno run was done in? etc etc.

But like what tfthach13 said, great you ran a stock test first, so after your mods you can see how much power you actually gained!!