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      07-19-2009, 06:13 PM   #17
TimMc
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Drives: E90 M3
Join Date: Aug 2008
Location: Brisbane, Australia

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Quote:
Originally Posted by smarm View Post
I run 42's front, 40's rear (hot) at sandown (heavy braking) with the standard RF's.

Quote:
Originally Posted by larryn View Post
Nice write up. Thanks for posting. I would suggest the following:
  • lower pressure to 40 psi/frt, 38 psi/rr hot
  • remove the front strut alignment pins and slide the strut hat over (gains -.5 deg)
  • turn off the electronic nannies
  • trust yourself and the car a bit more
Regarding the seats, a lot of guys are beginning to use carpet underlayment (the stuff that keeps the area carpets from sliding) on their seats at the track. It works surprisingly good, and you do not have to have the bolsters set to "clamp" you in, making things uncomfortable.

The best part is that you had fun and remained safe, anyway!! Win-Win!
Thank's Smarm & Larryn.
  • I'll lower pressures a little next time.
  • I may do the strut hat mod - though I'm not sure if it'll have adverse effects on toe & castor, as well as the camber I really want to change. Can the pin be easily re-inserted to put the strut back to it's normal position post track day?
  • The underlay sounds like it could be worth trying! Taa.
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