I'm seeing no mention here of racial HP max, and having discussed the matter of racial HP maxes on another board I'm not entirely convinced it's a good mechanic anyway. I mean, I can see the intent -- some races are just hardier than others -- but don't +/- CON values basically cover that?
First off, welcome to the forums!
Con does aid in that, but then again, so does strength, and both are BIG factors, but they are also not the only factors involved. Hit points are a measure of how much damage a character can take before falling unconscious.
In some other games, there is no cap on the number of hit points that characters can gain, and I have always thought that that was a problem, since a character could conceivably become the equivalent to a god or even a dragon just be staying alive long enough.
I thought it better to put a cap on that. This cap is essentially what become the Racial Base Max, which, when combined with average Con & Str stats for the race gave the average Racial Max. However, I also allowed for those stats to adjust that max for players based upon what their stats actually were (in one system, that did have racial caps, the cap was always static, so every race maxed out at the same, this way, every race falls within a range based upon the racial base and their stats.
I hope that answers your question. If it doesn't, then perhaps I didn't understand exactly what you were asking, so fee free to clarify.