2013 One Lap of America in a C63
Thanks for the updates and keep them coming!!!
I have to say, the exhaust note from the magna flow is somewhat awesome!!! Look forward to see/hear more videos of the car on the track.
The Best of Mercedes & AMG
After a thought out analysis of the plethora of heat exchangers located in front of the radiator... I decided to stop or at least make it more difficult for the airflow to simply bounce off the forward heat exchangers, surf over the core support and up to the engine air intakes. This hot air simply increases the heat issue and reduces the designed efficiency of an already stout trans cooler.
By adding this panel, the airflow is stacked at the front of the heat exchanger, hot air is blocked from rising up into the engine air inlets and our repeated tests have shown great results without having any further cut in performance. At speed the throttle response even feels better. I'm looking for a VBOX to see any differences since our last run but I can say the temps are showing lower and no more limp mode after a 30-45 minute heat soak.
Visit our Facebook page for pics and descriptions of this mod. We will have these for sale in either high density plastic or carbon fiber after OLOA.

Click here to see the photo album on Facebook.
So i will go back to posting about wheels, wax and doing burnouts since that must be the most important thing regarding the C63.
So i will go back to posting about wheels, wax and doing burnouts since that must be the most important thing regarding the C63.
So right now we are evaluating whether or not to even run the car for next year's event.
We were TOLD at Tire Rack the 235/40-18 was the only tire available from Michelin in the Super Sport line, which to our surprise upon the conclusion of the event, I was told there is a 245/35-18 made for Lamborghini and Ferrari that has an extra belt in the sidewall and shouldered tread black with a degree of negative camber built into it. This would have been very helpful when trying to get this car to turn. See the photo below at how the car is rolling the tires over and this was at 51 psi!!! Our tire pressures were simply out of control. We could start at 28-32, the recommended pressure... and within one session they would be at 45-50 psi fronts. The rears needed 28 psi cold and they worked great!

The car is cornering with great balance, it just refuses to turn. The rear is planted without drama, the fronts cannot get the car into a rotation to save the day. Interesting note here... my lap times were faster than Keith's car at Daytona, as measured from his videos... so I know I am giving this car all the hell it can handle.

So I am going to see if anyone makes a Camber plate setup for the front, try to find an appropriate front fender so I can increase the wheel size and then take it to the track to test. I was only 2-seconds per lap behind the fastest BMW having 600+ whp and full aero, weighing in some 500# lighter than me... so I am looking for a lap improvement of 3-seconds per lap at NOLA in the next month to continue.
Last edited by AutoTech Racing; Jun 11, 2013 at 01:27 PM.
So i will go back to posting about wheels, wax and doing burnouts since that must be the most important thing regarding the C63.
or 10 sponsors selling the same product and advertising it daily. Nice to see someone going to town on there c63 using like it was intended. keep it up.
So i will go back to posting about wheels, wax and doing burnouts since that must be the most important thing regarding the C63.
So right now we are evaluating whether or not to even run the car for next year's event.
We were TOLD at Tire Rack the 235/40-18 was the only tire available from Michelin in the Super Sport line, which to our surprise upon the conclusion of the event, I was told there is a 245/35-18 made for Lamborghini and Ferrari that has an extra belt in the sidewall and shouldered tread black with a degree of negative camber built into it. This would have been very helpful when trying to get this car to turn. See the photo below at how the car is rolling the tires over and this was at 51 psi!!! Our tire pressures were simply out of control. We could start at 28-32, the recommended pressure... and within one session they would be at 45-50 psi fronts. The rears needed 28 psi cold and they worked great!

The car is cornering with great balance, it just refuses to turn. The rear is planted without drama, the fronts cannot get the car into a rotation to save the day. Interesting note here... my lap times were faster than Keith's car at Daytona, as measured from his videos... so I know I am giving this car all the hell it can handle.

So I am going to see if anyone makes a Camber plate setup for the front, try to find an appropriate front fender so I can increase the wheel size and then take it to the track to test. I was only 2-seconds per lap behind the fastest BMW having 600+ whp and full aero, weighing in some 500# lighter than me... so I am looking for a lap improvement of 3-seconds per lap at NOLA in the next month to continue.
From these pics alone I can say without a doubt you need more mechanical grip. What springs and shocks are you running? Sure you can always use bigger rubber but with the right triple adjustable shocks, 700# springs, good sway bars and shock tower braces front and rear and a good corner balance you should be able to do much better on a road course. Pic one looks like that pig is understeering like crazy. That's easy to fix with some good suspension work but it may not be very fun to drive cross country. Compromises are a biatch.
Last edited by PaulWdz; Jun 14, 2013 at 03:02 AM.
I know the front is screwed. We were running the H&R Coilovers in the front and I kept adjusting the preload as much as I could to balance the car. The problem was getting the car three weeks before the beginning of the event and focusing on the tire selection, cam install (for which we are still waiting on parts MHP said they shipped three months ago), Tuning and then testing at NOLA.
I am looking for a company that makes Camber plates for the front. Haven't found any yet.
I see Renntech offers a bushing replacement and I am sourcing better tires than the Michelin Super Sports which is what we used. It became immediately clear the 235/40-18s were our Achilles heel for the event. We just could not turn the car. Upon arriving back at Tire Rack, I was told there was a 245/35 I could have selected but now looking at the 255/30-19 instead. I am looking into wider, stronger, lighter wheels. The stock wheels are super soft and became WAY out of round after hitting the curbing at during the events to help rotate the car.
We are looking at the Yokohama Neova AD08 for our possible replacement tire and then going to test at NOLA or Texas World in the next couple weeks.
Thanks for the input... I am all ears to finding suppliers for parts to make this car turn.
F 8.5x19 ET 45 245/35
R 10x19 ET 48 275/30
Pretty much decent set of aftermarket wheels at a decent price.
Recently installed my H&R springs.
When you are at it get 2pc rotors too for weight saving unless you have performance package P30 already?
F 8.5x19 ET 45 245/35
R 10x19 ET 48 275/30
Pretty much decent set of aftermarket wheels at a decent price.
Recently installed my H&R springs.
When you are at it get 2pc rotors too for weight saving unless you have performance package P30 already?
Do you think you could have fit a 9" front and the 255/35 tire in front? I am looking at the Yokohama Neova tires and getting away from the Michelins.







