Disclaimer: this is all research except for max exotic armor stats which are from the destiny database some numbers may not be exactly accurate 
So could anyone direct me to a thread or reddit for how much ascension from different light levels increases stats? If not I would like to start a poll here.
I'll be posting my stat changes with every ascension and together we might be able to determine what the increases are so we can predict what will become of our armor or determine if it is random!
All help is appreciated. Id be happy to support and bump threads in return or just Shoot the shit about destiny and I'll compile all the data in edits.
Together we can help everyone.
Thank you all!
To bungie: maybe adding some of this data instead of making us figure it out all the time would be really nice.
Here are the current max rolls
Exotic L36 
Armor Type	Split Max	Max
Gauntlets	       65	       113
helmet	             73	       128
Leg Armor	      N/A	       156
chest	             N/A	       170
Crota L36
Armor Type	Split Max	Max
Gauntlets	       56	       109
helmet	             64	       123
Leg Armor	      78	       151
chest	             85	       164
Vog L30 
Armor Type	Split Max	Max
Gauntlets	        52	       103
helmet	               59	       117
Leg Armor	      	  52        140
chest	               78	        155
271=100%
3 points Int. = 1 sec. Cool down
8 points Dis. = 1 sec. Cool down
7 points Str. = 1 sec. Cool down
Here's a template for everyone with an example
Armor name: facade of the Hezen lord
Light level: 30
Stats: D55 S57
Light level: 42
Stats: D?? S??
(Haven't ascended it yet sorry)
List:
Crest of alpha lupi Hunter 
L32
S170
L42
S180
Lucky raspberry
L36
I160
L42
I170
-seems like 10 is the stat increase for single stat exotic chest pieces from L36
Iron breed/regalia arms all classes
L36
Auto perk
I56 D50
Scout 
I50 D54
L42
Scout
I53 D57
Iron regalia/breed chest all classes
L36
Auto
I82 S81
Scout
I75 D81
L42
Scout 
I79 D86