How did you prepare your E39 for the track? - Page 4 - BMW M5 Forum and M6 Forums
Track, Racing and Drivers Education This is related to your driving on track and racing with your M5

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post #31 of 34 Old 8th December 2010, 08:04 PM
Clifford
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Well I just did my first track day at VIR over the weekend and I must say I think I was close to having a good setup. I have driven on track and raced with the SCCA for 10 years but this was my first event for this car and my first visit to VIR. I had to retire early due to warped rotors (rear?) so I think a brake upgrade is in my future. Here is my set up:

2001 M5

Factory rotors

Hawk HT-10 pads / all corners

Turner SS lines

Ams-oil fluid

OEM brake cooling ducts and fender liners

3 1/2 holes in my front grill with sink drains for cooling

18x10 et24 SSR wheels with 265/35/18s Sumitomo HTZ 3s on all four corners

BC racing coil overs with camber plates 400lb front springs 300 rear

3 degrees neg camber in the front and 2 in the rear

0 tow max caster in the front

The car handled amazing. The mechanical grip was on point with very minimal understeer ( entering the corner too fast ). The braking was good for 5 laps or so per session but after I would start to get a serious pulsating from the brake pedal. ( not so much the steering wheel) At one point I tried to drive around it and actually threw my car into limp mode.

Overall I know my front rotors were pretty much new when I bought the car but the rears were unknown when they had been replaced. Im pretty sure with a set of rear rotors my car would of made it both days with out a hic-up. Im actually going to purchase a new set of OEM rear rotors and head to Sebring in the next couple of weeks. Ill let you guys know how the brakes do then. Considering this is one of the hardest tracks on brakes in the US this will pretty much make or break me on whether Im going to do a big brake kit or not.

Cliff
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post #32 of 34 Old 8th December 2010, 08:36 PM
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Quote:
Originally Posted by Clifford View Post
Overall I know my front rotors were pretty much new when I bought the car but the rears were unknown when they had been replaced. Im pretty sure with a set of rear rotors my car would of made it both days with out a hic-up. Im actually going to purchase a new set of OEM rear rotors and head to Sebring in the next couple of weeks. Ill let you guys know how the brakes do then. Considering this is one of the hardest tracks on brakes in the US this will pretty much make or break me on whether Im going to do a big brake kit or not.

Cliff
If you use R-comps, you'll seriously want a Stoptech front BBK and something like a PFC01 pad. You will be blown away how different it is from using the stock brakes with race pads.

If you're replacing the rear rotors, consider using the E46 M3 ZCP rear floating rotors instead of the stock solid ones (exactly the same price as our stock solid rotors)). There are a direct fit on our cars, and are full floating rotors (and drilled unfortunately). At VIR a number of years ago, after I upgraded to the Stoptech fronts, I ended up cooking a rear dust cover and piston seal. I didn't track the M5 after I rebuilt the caliper, but I had planned to use Ti shields in the rear (with a cutout to fit around the piston clip) if I did.

If you drive on the street for a good bit with the HT-10s, they should clean off their deposition layer, and then you can rebed them the morning of the event. Hopefully that will clean up any vibration issues you have.

Good luck and report back,
Chuck

Current stable:

2019 M2 Competition 6MT LBB, slicktop
2011.5 M3 sedan 6MT Silverstone, slicktop: Dinan front swaybar, Eibach rear swaybar, pins-out-max-camber-up-front, Dinan exhaust, Michelin PS4S, Apex EC-7 9.5/10.5x19
2007 328i wagon Silver/gray: Eibach 28mm front swaybar, E93 M3 rear swaybar, 219M M3 wheels, Michelin PSAS3+
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post #33 of 34 Old 16th June 2016, 05:38 PM
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Mine's a 2003 540i/6 m sport and here's what I did for my track day (she handled it way better than my stock 99 540/6):

Brakes:
- M Performance 6 piston BBK (similar or the same as 135i brakes)
- ECS Tuning floating rotors
- Stainless lines
- Always fresh DOT4 fluid before the track day
- Removed dust shields and keeping the factory brake ducts and openings (anyone know why the 540i M got these, but not the M5? That makes no sense to me, but I'm not complaining)


Cooling:
- Thermostat spacers to cut out the electric thermostat and put a conventional 80C one in (the M62tu in the 540 runs at an outrageous 110C). I got the spacers from this guy on ebay and shipped me extra gaskets later for free. Pretty rad dude: sebastian_workshop_2011 on eBay
-Just using standard coolant for now, but will consider a higher water content mix next time

- Electric fan conversion using the thickest, highest static pressure SPAL fan I could buy. I fiberglassed the fan into the shroud and am running a variable speed PWM fan controller that soft starts the fan at 60 percent and then ramps up to 100 if needed or if my manual bypass switch is on)
- Gulf oil filter housing and AN10 braided lines and fittings
- Setrab 16 row series 6 oil cooler behind the kidney grills
- Had no idea what oil temps would get to, so I opted to run Mobil 1 15w50 for my track day anticipating oil temps would get much higher than they really did.


Suspension:
- BC Racing coilovers (just the stock setup, I didn't do any special spring rates)
- Rogue Engineering Thrust arm bushings with the black street urethane instead of the blue. They are still MUCH stiffer than a brand new stock thrust arm.
- Ball joints, tie rod ends, sway bar pushings and endlinks, and center track rod were shot, so replaced all of those and went urethane on the sway bar bushings.
- Eibach 18mm rear sway bar and replaced all the bushings and endlinks back there
- I forgot my exact alignment settings, but kept it street friendly with a little more camber all around, and less toe in the front than stock.


Power:
- Doesn't really matter that much to me for a fun track day, but I did do the M60 manifold swap.

2003 M-Tech Black on Black Sapphire 540i 6 speed
- BC Racing coilovers
- Eibach 18mm RSB
- Rogue Engineering TABs
- M Performance 6 piston BBK with 2 piece rotors and stainless braided lines
- Scuba cans deleted
- Setrab 16 row Oil cooler + gulf housing
- Electric Fan conversion
- 80C t-stat mod
- M5 oval mirror
- M60 Manifold swap
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post #34 of 34 Old 31st October 2016, 11:17 AM
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