First time at track, horrible time... Need help
 

I have a 1988 RX7 SE 5-spd...
-Completely Stock
-Vibration at high rpm
-Tires bad from off-roading
-150,000 miles


ok heres the slip:

R/T... 1.633
60`... 2.730
330... 7.835
1/8... 11.968
MPH... 58.57
1000... 15.551
1/4... 18.542
MPH... 75.67

How do I know if my 6th ports are opening?

To test them, T in a pressure gage and blow into the tube to check at what pressure they open.
Then route the tube inside with the gage on the end, and do a test drive to see when they open.

When they stick, it's usually the shaft & not the internal sleeves.
Just put some penetrating oil where the shaft goes into the LIM.