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E46 M3 Trackday #34 - Thunderhill West - Turn8 3/29/25
Driver407
Location:
United States
Level:
Amateur
Driver407
SFR Open Test - 3 Mile
Lap Date : 04 Apr, 2025
1min 25.9sec (+0.42s)
Outside Temp: 16 ° C
Thunderhill (West)
BMW E46 M3 2002 (Driver407/V730)
Race
Tire: 200 V730
Front Pad: Raybestos ST45
Rear Pad : Raybestos ST43
Tire Size: 265/35/18
Published on 04 Apr, 2025

Sixty-second track day. After a small 2-month break, back at it again.
Couldnt wait till next Saturday for birthday bash, so I also signed up last minute with Turn8.
Only ran with them a few times and decided to give them another go. Several buddies there to have fun with. Only setup change is a Schroth SHR FLEX HANS for my helmet. Finally talked into buying one.

Normal track day was sold out - so my only way in was doing Time Attack. I'm not against time attack but I generally dont consider doing it. I'm just there for driver mod and a good time. Thought I might squeeze into Street class but ended up in Limited because I have no rear seats :/ Wasnt terrible tho. Ended up on the podium in third with a 1.25.9. I also corded the shit out of my front inside tires during the session. Had to pack it up after only 3 sessions. Boo.

Either knocked my alignment outa spec or the change to higher spring rates recently has caused pretty sever front inner tire wear. (Ended up being alignment) Tires were toast after session 3 (15hc). The previous 3 sets of V730, I always blistered the outside around the 20th HC. Either my camber curve has vastly improved from spring rate bump, or my alignment is off when the coilover popped out on track a few months back. On both sides tho? Will need to get alignment and see what specs I am at. Might need to remove a little camber if toe looks ok. (-3.8 / 0 toe atm)

Never really planned on trying to beat my PB today (1.24.7). Only been to West a few times over the last year. Wanted to get reacquainted and warmed up. Have 2 more West events in the next few weeks with both cars. Both of which I will be going for new PB's. Coulda brought the RE71 set out, but I am saving them for a sub50 E46 Sonoma attempt in May. Putting on my first set of AR1's to replace the V730s. Should have a tad more pace than what I did on V730 PB for a flyer.

I did a very large DIY service to the E46 over the last month. Several thousand dollars equivalent of labor. Felt really good out on track and even better that nothing went wrong throughout the day. I thought I might need tweak some random part. Most significant change that will affect track conditions was a new water pump and thermostat. Which unlocked my DO88 radiator, which has been handicapped by the failing 20+ year old OEM parts. Coolant was amazingly solid all day.

Thunderhill West 3/29/25 hosted by Turn8. Advanced group.

0:19 - Stall, lol
2:27 - Gridlock
2:42 - Think this lotus PBd following me PB last April
4:28 - Skid'ster
5:00 - 1.26.0 lap
8:23 - wrong slip angle
9:00 - Chasing down Alex in his S2000
9:45 - Fairly solid T4 line
11:55 - Skiddy T9 exit
15:08 - 1.25.9 lap
23:10 - I see the crazy color miata? behind. Tried to let him pass on straight.
24:24 - When the aero doesnt kick in. Miata has left chat.
24:47 - Catching Ioannis in the white M3
29:13 - Windshield tire booger after Dorito
30:38 - Catching aero Corvette
31:08 - Lil exit skid
36:56 - Tailing Porsche half the TA thinking I might get point by. Shoulda pit gapped.
39:30 - Time Attack Best Lap (1.25.9 Transponder)
47:33 - This skid is when I realized my tires felt odd
48:22 - Lil skid down T1 exit

00:00 Catalyst Overview
00:06 Session 1
19:42 Session 2
36:16 Session 3 (Time Attack)

Suspension:
- TC Kline D/A coilovers 550/700
- Ground Control camber plates
- Bimmerworld sway bar links
- Hotchkis front sway bar
- Rogue Engineering strut bar

Brakes:
- AP Racing 9660 front bbk
- Stoptech slotted rear rotors
- Raybestos ST45/ST43 pads
- ECS brake lines
- Bimmerworld brass brake bushings

Wheels:
- Apex EC-7 18x10et25 wheels
- Kumho V730 265 (Day 4)

Engine:
- Beisan VANOS
- BE/ARP rod bearings
- Radium oil catch can
- Eventuri carbon intake
- DO88 radiator

Chassis:
- 3350lbs full tank
- RTD REVO1 reverse lockout shifter
- OMP WRC-R XL bucket seat
- Brey Krause seat mounts
- SCHROTH Flexi 6-point harness
- Autopower roll bar
- Rogue Engineering transmission bushings
- Powerflex diff/rtab/subframe bushings
- Turner subframe reinforcement
- DIY rear seat delete
- Full interior
- Garmin Catalyst lap timer

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