So, being kind of a nerd, I did some statistical analysis to determine which pressure setpoint kit I should get. Here is the data:
On a track day last year I logged last year, here are some relevant stats(for clarity I removed the "tails" from the data by not including anything at the beginning or end that was less than 20 mph to exclude staging and returning to the paddock):
MAX | 92.16 |
MIN | 42.15 |
Median | 71.08 |
Average | 68.50 |
Percentage of time less that 60 psi | 28.94% |
Percentage of time less than 45 psi (there were none less than 40 psi in the reduced dataset) | 0.49% |
Longest duration period less than 45 psi | 1 sec |
This would indicate that, for safety only, the 35-40 psi setpoint would clearly be adequate, however, to ensure a consistent pressure close to median or average is maintained, the 55-60 psi setpoint is better suited.
One of my concerns is that, if I pick the 55-60 setpoint, it is one more thing I have to manage(remember to turn it on right as I get on the track, remember to turn it off at the end, remember to turn it off on the track if there is a flag that requires me to slow down, etc). I am not sure of the consequences of accidentally adding 3 quarts of oil to the engine so maybe I am being overly conservative.
@Bnks334 , have you had any issues with this?
If I go with a 35-40 psi kit, I can probably step down to a 2 quart model given the small percentage of time it may actuate and save some weight/space in the engine bay. Going to mull on this a bit after I take a newer set of data next Wednesday.