[Fot] Tr6 Race CAr Cam

[Charly Mitchel]

And what is your cam timing?
  (Your cam centerline of the intake lobe ATDC)
Charly Mitchel

----- Original Message ----- 
  From: Chuck Arnold and/or Kathleen Kelley 
  To: Friends ; Schumacher ; Sam Halkias 
  Sent: Monday, April 11, 2016 8:30 PM
  Subject: [Fot] Tr6 Race CAr Cam


  Having now had several successful track outings, I have come to an observation about my car's performance.  It is a petrol injected TR6.  Flowed head, Goodparts header, and cam whose maker I now cannot remember.  320 degrees, .5 lift at valve, and pretty early and long symmetrical input/exhaust valve timing. 104 degrees lobe separation.


  Car reves past 7000 rpm easily in 4th [4:11 rear end].  The problem is low/midrange torque..  I was slightly out dragged by good Spitfires coming out of turn 10 onto the straight at Laguna.  By turn 1 I was faster than them.  Power comes on too late and torque needs to improve at low end.  Looking for recommendations on a more appropriate duration and input/exhaust open/close timing.


  More importantly, I need a recommendation for cam vendor/recommended grind.  Had a Kastner S9 in my last [now stolen] car -- but the gentleman who did the grinding  has pasted on and Moon Eyes no longer does them.


  I know I have not said enough about the current cam -- just I am away from home and do not have the cam grind card with me.






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