Volvo 122S Engine Performance

Volvo 122S 67‘
Volvo 122S Engine Performance
B18D original engine, 155tkm:
144Nm @3500rpm, 85HP @5500rpm
B20 engine, K-CAM, 0,8mm cylinder head gasket, 2x SU-HS6:
166Nm@4000rpm, 113HP@5600rpm
200
100
180
90
160
80
140
70
120
60
100
50
80
40
B20_Torque [Nm]
60
B18D_Torque [Nm]
40
B20_Power kW]
20
B18D_Power [kW]
0
0
1000
2000
3000
4000
[rpm]
5000
6000
30
20
10
0
7000
[kW]
[Nm]
Volvo 122S 67' Engine Performance
Volvo 122S Vehicle Performance
B20 engine, K-CAM, 0,8mm cylinder head gasket, 2x SU-HS6:
166Nm@4000rpm, 113HP@5600rpm
Æ 0 to 100 kph: 11,6s
Æ 2. Gear: 1000rpm Æ 6000rpm: after 10s 18kph faster than B18D
Æ 3. Gear: 1000rpm Æ 6000rpm: after 19s 20kph faster than B18D
140
120
[km/h]
100
80
60
122S_B18_v_Gang2
122S_B18_v_Gang3
40
122S_B20_v_Gang2
20
122S_B20_v_Gang3
122S_B20_0_to_100
0
0
5
10
15
[s]
20
25
Volvo 122S Vehicle Performance
B20 engine, K-CAM, 0,8mm cylinder head gasket, 2x SU-HS6:
166Nm@4000rpm, 113HP@5600rpm
Acceleration vs. speed
5,0
122S 1.8 ax_1
4,5
122S 1.8 ax_2
4,0
122S 1.8 ax_3
Ax [m/s²]
3,5
122S 1.8 ax_4
122S 2.0 ax_1
3,0
122S 2.0 ax_2
2,5
122S 2.0 ax_3
122S 2.0 ax_4
2,0
1,5
1,0
0,5
0,0
0
20
40
60
80
100
120
Vehicle Speed km/h
140
160
180
Volvo 122S SU HS6 carburetor needles
B20 engine, K-CAM, 0,8mm cylinder head gasket, 2x SU-HS6:
166Nm@4000rpm, 113HP@5600rpm
SU HS6 needles: Current setup with RN needles Æ too high enrichment >> 3000rpm, Lamda = 0,78 – 0,82
Æ I will modify to KD for less enrichment at fullload, ~ Lamda 0,85 – 0,9 Æ 2-4HP more power