My WAR calculation is a combination of Baseball-reference and Clay Davenport; I believe it to be the "best" WAR number available for historical comparison. 8 WAR is an MVP quality season. The record is pythagorean adjusted for 162 games.
1916 93-69
C Bill Rariden 1.45
1B Fred Merkle 1.25 (13.4) Last season
2B Larry Doyle 3.2
SS Art Fletcher 6.15
3B Bill McKechnie -.25
LF George Burns 2.65
CF Benny Kauff 2.65
RF Dave Robertson 3.75
Uti Buck Herzog 1.85
3B Heine Zimmerman .1
1B Walter Holke 1.25
SP Jeff Tesreau 1
SP Pol Perritt 2
SP Rube Benton 1.05
SP Fred Anderson -3.05
SP Slim Sallee 3.15
RP Ferdie Schupp 4.05
RP Christy Mathewson -.2 (99.65) Last Season-Winning streaks of 17 and 26, Merkle and the greatest Giant to that date, Mathewson, depart. Roger Connor was a Hall of Famer who played for the first Giants team in '83. He'd play with a Hall of Famer, George Davis. Davis played with a Hall of Famer, Mathewson. A young Edd Roush gets some ABs with the Giants this year, he'll go play the bulk of his Hall of Fame career elsewhere but will then come back to the Giants for a few years in the 20s, where he will play with Mel Ott. Connor-Davis-Mathewson-Roush-Ott.