Guys have a S205 C63s Wagon. W205 is the sedan and S205 is the Wagon/Estate. Had it for a year and half.
Got pipes and really aggressive tune here in Australia, 862 FPT or 1169 NM. Have Meth kit ready to install but pointless, also the Chiller Kit would be a great addition but again pointless until I can sort this issue.
Running 19x295x30 Toyo R888R's to the rears on a 11" rim. Even got the rears at 30psi and tried lots of other setting to no avail. Got 4k out of the rears and they are toasted. Hard to find a 35 series in that spec, would help with sidewall fix. Rear brakes will not allow 18's. Might be an option...
Have owned lots of 10 second and 1 low 9 second street Car but this thing just cannot get it down...
Any Ideas to make it hold traction ? I'VE Looked at the the 1/4 Mile threads.
Just ordered K-Mac front and rear bush set Camber Setup to help. Will install when this arrived and report back.
Would love to install meth and chiller kit and get gearbox upgrade but what is the point....
Anyone out there that has sorted this would love to Know.
The BMS piggyback with boost reduction on gears I understand but get these things to HOOK up and they have the potential to be rockets.

What you think...?

 

Im using Nitto 555r with Tune and DPs....hook better than the Toyos in my experience

 

Talked with my wheel guy and monoblock (1Piece) wheels in 18" will fit over the big rear brakes on a c63s. Would mean could put a 305/35/18 on the rear giving 35% more side wall. ET Streets would be the go ! have to go 19" on the front.
Ran the 555r's on a flat 10 second car and found them good for only 2000kms and with half the tread left they went off.
The R888R's I find constant all the ways pass the wear indicators....

 

Hi mate, did you get better results after the kmac install? Im also in Australia, i sent you a private message.

 

We offer a forged 17x10.5 beadlock conversion. And are based in Aus too.
https://www.zacmotorsport.com/collec...-forged-wheels