blindfold

hey, were you also the one that went to TopSpeeds's Robeling road track day?

drawde

Would love to track my car one of these days, but I feel like my first time I wouldn't want anyone around. What days typically aren't busy at the track?

hhughes1

It wasn't me, what type of event was it?

hhughes1

http://clubregistration.net/

search for DE events.......
Private track rental would be huge $$ and the DE events have a green group with classroom and instructors.

FBTO

So how dove manage the tire pressure with nitro?

Can I put in oxygen when I have nitro in the tire? Any issues with mixing?

NickZag

Usually if you use nitrogen you don't have to mess with your tire pressure at all. The reason people use it is that it doesn't expand or contract with change in hot and cold temps. There aren't any issues if you mix, but after you mix it you'll have to check and change the temps, just like having regular air in your tires.

Questions

Is that simply blue painter's tape that you use? Or something specfic?

BerBer63

Where are you guys picking up steel brake lines?

ATL_MB

The picture is not my car, but yes, you can use blue painter's tape. DON'T use anything really sticky (like duct tape). I ordered a clear plastic film to permanently cover my fog lights because I wanted something to protect them all the time (they are expensive and a PITA to replace). Unfortunately, it did not arrive prior to my track dates, so I have not installed it yet.

wuyichao

blue paint tape

wuyichao

I just came back from Monticello Motor Club.

It was a great day with lots of nice cars.

I have a few questions to those of you who track your car regularly. Instead of creating a new thread, i figured i would just post it here.

What is the cold tire pressure before your track session? I lowered mine from 41psi to 34 psi all around. I noticed they were increased to 45psi after just one track session which was about 25min. I didn't expect that much of an increase.

Also, how's your engine temp during a hot day track session. It was about 80 degree air temp, and my engine temp reached 262 degrees. It kinda freaked me out and I stopped pushing my car very hard. Any of you experienced the same issue? if so, did you ignore the issue or you let it to cool off.

thanks for any inputs!

ATL_MB

Your tire pressures seem normal to me - they do increase significantly with hard driving. You can bleed them down during the day if it helps.

You engine temps are consistent with mine, assuming you are talking about engine oil temps. My car's oil temps hit around 265-270 F (90+ ambient air temp), which I was fine with. That doesn't seem too hot - besides, my theory is that the car is smart enough to tell me if it wants to take a break.

FWIW, I tracked an E63 at Road Atlanta, and the oil temps went to 285 F, at which point the engine cut power and the transmission went into limp mode. I don't think that the temps and limp mode are related, b/c the car never displayed any oil or engine temp warnings, and limp mode came on during (relatively) hard cornering only. But I will throw that out there if anyone wants to formulate an hypothesis.

dacatz

just went to the track yesterday.....i have very little coolant coming out from the reservoir.....my oil temp went up to 130C degree, didn't check the coolant temp.... and it was 32c degree (outside temp) and after i drove about 4 laps (about 4km/ lap) my tire pressure went up from 40psi to 47psi.....so i lower the tire pressure to 35psi for the front and 37psi for the rear....turn out it is slightly better (factory tires)...and i will definely need better tires for sure....Other thing is i will recommend is get s/s brake line and change the brake fluid..(oem fluid is just sucks)......this track i went is a very tight track(shannonville full track)....after my 10th lap(6 laps in a row) ...my brake fluid start to over heats (kinda disappointed), after 4 more laps, i lost the brake pressure at all(lucky last two turns before the pit)....but the thing is i am not a hard braker and brake earily too. Anyone have this weak brake and coolant problem on track?

dumpsta

I don't find shannonville to be very tight at all. How did you know the brake fluid overheated? Any lights come on or did it boil? I find my brakes start to fade a little after 5 laps or so. But I would recommend 1-2 cool down laps before you pit or you will end up with golden calipers like me.

MRAMG1

Then you have NEVER been on a real course my friend. Shannoville was built and used for the Bridgestone driving school for Formula Fords. Which I was a part of from 96-99.

Often we would take our street cars out on it, and YES it is EXTREMELY tight. Often only two car widths wide in MANY areas. I had a purpose built stang back then and you could get the brakes spongy in no time at all.

Keep in mind that SS brake lines will NOT help brake fade. If the rotors get too hot, aka pads too, they will still fade do to fliud temps. The purpose of SS lines is prevent ballooning of the brake lines under EXTREME pressure and heat. For a heavy street car like a C63, you will NOT see any track improvement from them. Some claim "Better brake feel", which is the same feeling as the but dyno with K/N's or charcoal removal.

And Yes by ALL means do AT LEAST 1 cool down lap. 2 preferred. This will not only help prevent warped rotors, but it also allow some much needed cooling for the engine, tranny and diff.

Is there still a rut, worn groove, at the end of the back straight away?

Nice area by the way

dacatz

Compare to mosport, this track is tight....also i think anything over 350hp is over power in that track...i know the car is heavy....and i did a cooling lap after i noticed the brake fade....but guess i think i need two laps

For the brake fluid boil, basically when i press the brake pedal, it drop halfway....then abs turn on and the car still going forward.....

so far my front rotors no deep burning grooves and burn spots....i think i did alrite!

PC Valkyrie

Agree that Shannonville would be considered a relatively tight track, although how "tight" it feels depends so much on your pace and how much you are pushing the car.

For those of you who have tracked your C63 on the Shannonville Full SMP track, what laptimes are you running?

dumpsta, are you faster than B4TM4N?

Stickstome2

260 degrees oil is not bad for a track day. I wouldn't worry because the motor has built in safety before it melts. However I have a new 2014 and I would go Into limp mode just a after 6 minutes of track because oil temp hit to 287 and higher. So I had the code 440 cooking package put in from merdeced amg in Nashville and greatly improved it . Track oil temp stays at 260 and non issues . And it was 90 outside

Stickstome2

Yes they are related . Limp mode is protection for oil over temp. At which its around 278 or 287 . Mine did that and I got it fixed with the cooking package from amg that they put in there black series. It's the code 440 cooling package . And it works . I push my card hard at track days and now don't go over 260. Even on a 90 degree day

zcct04

Here's a novel idea that I'd not seen before - has anybody tried this?

Bigtickets

How far would the fronts stick out? I would be interested in a square set up trial to see how it performs. Any donors?

WESLEY KAY

17" Hoosiers in the back, 275 width on a stock suspension. Drag racing setup. I love it!

hyunman

Quick question - was planning on going to my first track day in the C63, but am noticing everyone here is on 18" (or smaller) wheels on the track. I'd prefer this too, but I'm on 19" wheels at the moment with obviously skinner sidewalls with Hankook ventus v12 evo2 tires. You guys with track experience think this would be okay (although not ideal) for green group/pace car sessions, or is there anything I should be careful of while I'm out there? Any pointers appreciated!

BLKROKT

You will be totally fine. There are many of us who track on 19's. It's your first trackday, believe me you're not going to be going *****-out. Just check your fluids before you go, learn about driving on track, and have a good time.

hyunman

Thanks BLKROKT for the peace of mind - really appreciate it. First time to the track and I think I'm overthinking everything .. especially since my car outweighs all the other cars on the track day list by about 1000 lbs lol