I don't think you understand what reason actually is. Let me help by first defining reason:
Definition of reason
(Entry 1 of 2)
1a: a statement offered in explanation or justification gave reasons that were quite satisfactory
b: a rational ground or motive
a good reason to act soon
c: the thing that makes some fact intelligible :
CAUSE the reason for earthquakes the real reason why he wanted me to stay— Graham Greene
d: a sufficient ground of explanation or of logical defense especially : something (such as a principle or law) that supports a conclusion or explains a fact the reasons behind her client's action
2a(1): the power of comprehending, inferring, or thinking especially in orderly rational ways :
INTELLIGENCE
(2): proper exercise of the mind
(3):
SANITY
b: the sum of the intellectual powers
So reason is just the application of your mind using things like logic, evidence to come up with conclusions. We don't have "faith in reason", reason is just one facet of our faculties that we as humans utilize along with everything else to justify a course of action, or a conclusion. In other words, reason can be wrong and it can be right and the only way to know if you have "reasoned" something properly is by the application of the objective facts and evidence, or applying logic. It's weird that you would say "faith in reason", when reason isn't an absolute, it's just a process of thought that utilizes things independent of it. Now if you wanted to say we have faith in logic, or evidence..that would make more sense, although it would still be false.
Second, you stated that "Therefore, scientists
believe in their empirical results." No, you have it precisely backwards, let me correct for you. The empirical results tell scientists what to believe. A scientist can and does all the time make incorrect inferences based upon limited data or an observation, but their beliefs don't dictate what the empirical results show or what final conclusions are drawn. This is why peer review, multiple tests and independent confirmation is so important in science so that personal bias or belief doesn't come into play and it's all about the data and test results. There have been lots of things scientists have believed over the centuries that were wrong, that were proven wrong by the empirical data. They don't have to believe the data for something to be true objectively.