Take-Off Speeds for the 737-300/400/500
TOW 737-300 20K 737-400 23.5K 737-500 18.5K
1000kg V1 VR V2 V1 VR V2 V1 VR V2
70 158 162 168
65 154 155 160 152 154 162
60 147 148 154 144 147 155 147 147 152
55 140 141 148 137 139 149 140 140 146
50 133 133 141 129 131 143 132 132 139
45 123 123 133 121 123 136 123 123 132
40 114 114 126 112 115 130 113 114 124
35 104 104 117 104 104 117
ISA Vmcg=111 ISA Vmcg=115 ISA Vmcg=106
Typical wet V1= dry V1-10kts.
All speeds assume balanced field, flap 5, pa<5000ft, OAT<35C, nil slope, nil wind, runway dry.
Looks like increasing V1 and leaving Vr and V2 alone doesn't change anything enough to be readable or none on a 737.