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Vehicle Mod List:
Long Tube Headers
ROW Airboxes
OEM Paper Air Filters
X-Pipe
91 Octane
Hammer Tune by eightysixtuned
Falken FK510 Street Tires
Carbotech XP12
First track outing with the full weight E63 on Falken FK510 Street Tires driving at 5/10ths and first time at Laguna Seca. Car was lacking proper tire and brakes for such a heavy car so best thought it wise to take it easy. Also, lack of limited slip really held back the ability to come onto power or come off power without causing the open diff to lurch forward. You'll see a few times in the video where I attempt to roll onto the throttle and the vehicle lurches awkwardly due to the lack of limited slip. Fastest lap of the recording was somewhere within the range of 1:44-1:47. Utilizing Harry's Laptimer for logging but will need assistance from Harry to correctly time a few laps for dropped GPS signal. Fasted time estimation of the perfect lap per Harry's Lap Timer of all laps of me driving at 5/10th's estimated 1:40 lap time. I estimate with a LSD, R compound, and a better braking system W211 this time could easily be 1:30 or very close on factory suspension.
Pre aero, about 3400lbs and still on pizza cutters (245F / 265R) so it understeers like a pig.
This season should be slightly different. Still on the skinnies but they should be pressed into the ground a bit more more now
Have also stripped another 100lbs or so out of it as well so it could be in the high 3200lbs range now.
Originally Posted by Jasonoff
Ruhroh...
LOL...i fixed it...i had to verify my account again and re-upload which sucks for a 8GB file.
do you have an LSD and what are your alignment specs? from an outside perspective if you do have an LSD, it's very loose and your alignment may not be aggressive enough.
do you have an LSD and what are your alignment specs?
Wavetrac LSD.
Alignment
================= FL Toe: 0.08° FR Toe: 0.08° Total Toe :~5/64" in FL Camber: -3.9° FR Camber: -3.8°
RL Toe: 0.18° RR Toe: 0.17° Total Toe: ~5/32" in RL Camber: -2.7° RR Camber: -2.6°
Originally Posted by hachiroku
from an outside perspective if you do have an LSD, it's very loose and your alignment may not be aggressive enough.
You mean tight? There's virtually no oversteer, it's all understeer so it's far from being loose.
Because of availability at the time I do have mismatched tires though. 245/35-19 Trofeo-R up front and 265/30-19 Cup2 out back. It's NOT balanced right now so it's unsettled under braking but manageable. Maybe that's what you're noticing?
I had to spend so much time on cooling last season which was frustrating. I believe that has been sorted, so now I can work on the balance this season.
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Originally Posted by hachiroku
@BLKROKT , i know you're not holding out on track videos now are you...
I’ve posted plenty on here in the past. I don’t really have many recent videos to share because my car has been in pieces for most of the past two seasons.
Here are a couple laps from Big Willow in late Feb. Chased down a GT3 RS with my terminally broken car. Hasn’t run since.
Because of availability at the time I do have mismatched tires though. 245/35-19 Trofeo-R up front and 265/30-19 Cup2 out back. It's NOT balanced right now so it's unsettled under braking but manageable. Maybe that's what you're noticing?
I had to spend so much time on cooling last season which was frustrating. I believe that has been sorted, so now I can work on the balance this season.
ah, that explains it! thanks for clarifying. tires would do all of that. any thoughts of going wide body?
I’ve posted plenty on here in the past. I don’t really have many recent videos to share because my car has been in pieces for most of the past two seasons.
Here are a couple laps from Big Willow in late Feb. Chased down a GT3 RS with my terminally broken car. Hasn’t run since.
(ignore the telemetry it’s never right)
i haven't driven big willow yet, only streets of willow, but is it as bumpy as your camera shows or was that the camera mount?
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Originally Posted by hachiroku
i haven't driven big willow yet, only streets of willow, but is it as bumpy as your camera shows or was that the camera mount?
It’s crazy rough. Hardest track on tires I’ve been on. Worse surface even than NJMP. It was also not even 50F out with a 40mph headwind down the front straight. Awful conditions. Pretty unimpressed.
And without rear aero the car was super sketchy as the track is basically all high-speed turns except for 3/4/5. That RENNtech wing was ugly as hell but effective.
ah, that explains it! thanks for clarifying. tires would do all of that. any thoughts of going wide body?
My brake compounds are also mismatched. I had gone too aggressive with compound so I bumped the front down and now the rear is too aggressive. I need to data log but I think it's also triggering ABS in the rear as well. I want to see how it is with aero before potentially addressing prematurely. The rear wing will produce quite a bit of downforce so I am curious if it will neutralize the compounds. It's a mess but work in progress. Unfortunately there's essentially nobody with a similar setup so it's all basically trial and error. Last season was just a shakedown for the new build so I will work on getting it dialed in this season.
I already have front wheels on order. They're coming from Japan (Enkei) with a July ETA. Will go 265 up front and see how a non staggered setup feels.
I give absolute zero fks about how it "looks" so if I need to go wider in the rear I will chop out the fenders and likely just go with some generic over fenders. I don't need to use the rear doors so if whatever I go with covers them it won't matter. I'll just mount them with rivnuts so It can be easily removed if required.
how do you like the Maxxis RC1? 235 is a bit small but looks to have a solid offset for the W204. the annoyance i find is that R compound tire size selection for larger sedan's outside of your 911, Viper, Camaro, Mustang, etc are really not properly matched or available.
how do you like the Maxxis RC1? 235 is a bit small but looks to have a solid offset for the W204. the annoyance i find is that R compound tire size selection for larger sedan's outside of your 911, Viper, Camaro, Mustang, etc are really not properly matched or available.
The Maxxis RC1 hold up great. It takes quite a bit to get them up to temp, but they are solid after. 235 is pretty tiny, but these definitely run one size up.
I've tried other tires like A052 and RE71R, but those sidewalls are too soft for our heavy cars.
Finding properly matched wheels are another obstacle as well
Hi guys, i am on the way to convert mine '08 C63 on a track rat now. I am in Paraguay Southamerica, and i have imported the C63 form USA some years ago. So far i have ECU tunning, wavetrack LSD, ARH headers, E85 kit and KW Clubsport 2.
I will strip all the interior, delete the solar roof and put a full roller cage that i have ordered from germany, along with racing seats/seat bell. I still need to way a couple of months to get it here.
Any recommendations on wheels for weight saving?. square setup?.
I will post photos later when the modifications are done.
Sorry for the bad english...
Last edited by freddy-amg; Jun 8, 2021 at 12:41 AM.
The Maxxis RC1 hold up great. It takes quite a bit to get them up to temp, but they are solid after. 235 is pretty tiny, but these definitely run one size up.
I've tried other tires like A052 and RE71R, but those sidewalls are too soft for our heavy cars.
Finding properly matched wheels are another obstacle as well
the maxcis rc1 run one size up and you are going to fit a 255 up front? Please let us know how that goes
Yes, around 50% of the gas station have 100% ethanol here. Is it sugar cane maded, around 30% cheaper than 95 octanes gas. I made a dyno base before and after E85 kit, and got around 35 whp on the upgrade. Currently 449whp with mine upgrades.
the maxcis rc1 run one size up and you are going to fit a 255 up front? Please let us know how that goes
Yeah, a 255/35 Nankang runs pretty true to size from my brief mock up
Theres quite a bit of room in the front wheel well now because of the coilovers and camber setting. On the track setup, I have to run a 13mm spacer to flush out a 8.5 +35. Tons of room in the front and back in case I need to adjust for increase tire poke.
Yeah, a 255/35 Nankang runs pretty true to size from my brief mock up
Theres quite a bit of room in the front wheel well now because of the coilovers and camber setting. On the track setup, I have to run a 13mm spacer to flush out a 8.5 +35. Tons of room in the front and back in case I need to adjust for increase tire poke.
Yeah, I bet I'll be doing some trimming up front. I have some 19 X 9.5 +27 on order to bump to 265 in the front. With the near -4° camber, it does make quite a bit more fender room though.
I was test fitting with some spacers and washers using my rear 10" and a 265 to eyeball if that +27 would work. I think I can make it fit.
Yeah, I bet I'll be doing some trimming up front. I have some 19 X 9.5 +27 on order to bump to 265 in the front. With the near -4° camber, it does make quite a bit more fender room though.
I was test fitting with some spacers and washers using my rear 10" and a 265 to eyeball if that +27 would work. I think I can make it fit.
I've been playing with different mounts and just switched to this combo which is rock solid. The mount is as beefy as a GoPro mount. You want a short solid arm and a thick suction cup that doesn't "rotate" with each bump.
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