Quote:
Originally Posted by AKPAB
Now that we have determined tire pressures, my question relates to leaving the engine running or shutting it off after each autocross run.
Is it best to leave it idle?
Turn on the heater?
Turn it off and let it soak? (I think this is generally a bad idea)
Depending on the venue, my local events can have 200 participants, sometimes 4 run groups, and multiple driver cars within the run group. This means the time waiting for the next run can be 10 to 15 minutes. This seems like a long idle, but if it is better to continue to circulate oil and coolant, I'll do it.
What do others do?
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Virtually everyone here in central Texas takes a very slow drive back to the grid, then turns off the car and opens the hood. People generally restart their cars only a couple of minutes before being sent to the start. I can't cite an engineering rationale for this, but I do it too.