Hey guys,
Hit the dyno today and was able to get 450.42whp and 401.29 ft-lbs SAE Corrected on a Dynojet 224x dyno!! Uncorrected values were 449whp and 400 ft-lbs. Weather was in the mid 60's here in central FL. Run 3 was my baseline on Jan'16 with AFE Power air filters and ROW airboxes and Run 17 was my HP Tuners street tune where I ran 11.844 @ 119.4mph (Michelin PS4's) and the mods below.
Car:
2012 Mercedes C63 P31 coupe with LSD
Mods are the following:
AFE Power Dry air filters
ROW airboxes
MBH Motorsports headers
Quaalude's midpipes with Magnaflow 59959 cats and Vibrant 17695 race mufflers
MBH X-pipe
stock resonator
stock exhaust
Quaalude's custom HP Tuners V1 tune
I'm finally able to say "money well spent" on the above mods because I gained 62.74whp and 51.94 ft-lbs over stock and bet my best stock time of 11.96 @ 117mph (Goodyear street tires) with my HP Tuners street tune. With MBH headers and EC tune, I was never able to get into the 11's (12.06 @ 116mph best). I gained 25whp and 21 ft-lbs from adjusting A/F's, adding in timing, and VVT adjustment. I should be in the mid to low 11's with 122-123mph traps.
Thanks BackyardTurbo for some of your tips and previous posts and HP Tuners for an awesome product!
Dyno run vids:
https://youtu.be/iAYjTu-rs9w
https://youtu.be/EvGeZoRvRhw
My M156 street and dyno tuning services are available for the greater Tampabay area or remote tuning lol.