AlexZTuned

Ran my stock 2017 C63S Coupe at the track today - 1700 miles on the clock.

11.6 @ 121.74 MPH (best ET) and 11.8@122 MPH (best trap), bone stock, full weight with half a tank of 93 octane (weighed in at 4030 lbs).

Video:

jkob5

wow that's the fastest I've seen. Sounds like race start? Did you do a burnout prior? Michelin super sports?

AlexZTuned

Yes, I used Race start and Race mode setting with ESP in sport (not fully off). I'm on the stock Michelin PSS (255f/285r), lowered rear tire pressure to 32 psi, and did a small burnout just to clean the tires before the run. Street compound tires don't hook well when they're very hot.

I tried Race mode with the suspension set to comfort thinking softer suspension would hook better, but each time I got horrible wheel hop/bogging. The stiffest (Sport+) suspension setting in Race mode gave me the best launches.

jkob5

Yeah I get the same wheel hop problem if I accelerate hard in 1st or 2nd in comfort mode. Makes me think their is more adjustment than just the stiffness.

AlexZTuned

Check your tire pressure and make sure it's not overinflated. With the Coupe, I run 36 psi rear and 38 psi front (cold) and don't get wheel hop on the street. At the strip, I dropped the rear tire pressure down to 32 psi. That combined with the stiffest Sport+ suspension gave me the best launches. The street can be tricky because it depends on road conditions, tire and ambient temp, etc.

YouTube run:

AKnight55

Nice. Should get an amg meet together at NED one street night.

sack5000

cant get under 12...

DSawyer63

No Bull, making up nonsense isn't my style. I have videos too but I think you've already seen those. As far as the 697 whp 350Z that I beat in my W204 with headers and tune, I won because I hooked and he didn't. That was relevant because I wanted people to know how good those Hoosiers were.

noone3000

What are your tips on getting the maximum tire hook up? Would you mind sharing your settings and technique?

AlexZTuned

You running OEM tires as well? Very nice 60 ft on that run.

DSawyer63

Thank you! Yes oem tires, that was as the car was driven off the dealership lot, it only had 472 miles on it lol. Full tank of gas and full tire pressure. Byron is a notoriously sticky track so that helps. These cars seem to be fastest without launch control. Put your suspension in soft, traction all the way off and then either S+ or Race. Do a decent burnout too even though it's not a slick. still helps

AlexZTuned

Thanks! Did you brake boost at all or just floored it off the line?

DSawyer63

Yes! I can't remember exactly but held roughly 2000 rpms while waiting for green

Mikey_boy

Went yesterday. First run was 11.701 @120MPH, Second was 11.68 @120MPH.

2017 C63s Sedan, stock, 1/3 gas and full tire pressure on stock rubber.

tekfoc

wow congrats.
what track was this. did you use race or brake boost of the line?.

Mikey_boy

This was at Sacramento Raceway

What I did:
Put in Race Mode
turn off TC all the way off
Pull up, back into water, forward, small burnout
Engage race start
Second light, press into throttle
Third light, release brake and floor it

I was able to get great traction 1.9 60'

tekfoc

very nice.

tscales

Just ran the quarter for the first time tonight in my C63S convertible (complete with two booster seats in the back seat). Only got three runs. My best was:

11.943 @ 119.36

This was at Orlando World, with temp at 81 degrees, so hot air.

I'll take it. My Reaction time as .191 and 60 ft was 1.823, which I'll also take

Shoot, it was even my best 1/8th (I usually run a poorly prepped 1/8th mile track). 7.737 at 90.86.

The ETs are better, so far, than my old SL65, but the top speed is a little slower. The SL65 just kept accelerating.

Great fun.

tekfoc

That's great since with the added reinforcement
It's a little heavier then non convertibles.

M177fanatic

No 1/4 mile time but I did a 147 in a 1/2 mile at shift sector stock

jmfabr2rc

bro did you run in race mode? did you make the changes manual? did you run with esc off?