DE Tire Pressures

[Larry Herman]

The right way to find the optimum tire pressure?  With a pyrometer and a data logger.  Otherwise you are just going off of feel and tire wear; both are notoriously inaccurate unless you can feel minute differences in the car's handling like a pro can.

That said, you can try upping the hot pressures in 2 lb increments until the tires feel greasy, and then drop back.

IMHO 37 sounds low for the fronts, should be up around 40 at least.  And yes, if it is colder out, you need to start with higher pressures.