Camshafts
"Hotter"
cams aren't easy to find. To get "Hotter" cams you'll need to ask
someone to make new ones. Not cheap! The hottest for the B202 is the 1986-1993
T16 Cams.
Specs of stock 16v cams:
| SAAB part Number |
Type |
Lift mm
|
IVO (BTDC)
|
IVC (ABDC)
|
EVO (BBDC)
|
EVC (ATCD)
|
Duration
|
| 7509201 |
Intake |
8.65/6.65
|
10.0
|
56.0
|
- |
- |
246.0
|
| 7509219 |
Exhaust |
8.65
|
- |
- |
56.0
|
16.0
|
252.0
|
| 7560808 |
Intake |
8.65
|
16.0 |
56.0
|
- |
- |
252.0 |
| 7560964 |
Exhaust |
8.65
|
- |
- |
61.0 |
13.0 |
254.0 |
| 7561467 |
Intake |
8.65
|
16.0 |
44.0 |
- |
- |
240.0 |
| 9116690 |
Intake |
8.65
|
13.0 |
53.0 |
- |
- |
246.0 |
| 9116708 |
Exhaust |
8.65
|
- |
- |
50.0 |
16.0 |
246.0 |
| 9145632 |
Intake |
8.65 |
14.0 |
46.0 |
- |
- |
240.0 |
| 9145640 |
Exhaust |
8.65
|
- |
- |
44.0 |
16.0 |
240.0 |
| 9145657 |
Intake |
8.65
|
13.0 |
53.0 |
- |
- |
246.0
|
| 9145665 |
Exhaust |
8.65
|
- |
- |
48.0 |
18.0 |
246.0 |
| 7518913 |
Intake |
- |
- |
- |
- |
- |
- |
| 9148305 |
Intake |
- |
- |
- |
- |
- |
- |
| 9148313 |
Exhaust |
- |
- |
- |
- |
- |
- |
| 9170887 |
Intake |
8.31 |
12.0 |
39.0 |
- |
- |
231.0 |
| 9188855 |
Exhaust |
8.07 |
- |
- |
34.0 |
14.0 |
228.0 |
| 9170895 |
Exhaust |
8.31 |
- |
- |
37.0 |
14.0 |
231.0 |
Which cams are found on which Engine:
| Engine model |
Year |
Type |
SAAB part Number |
other
part number |
| B202 |
1984-85 |
Intake |
7509201 |
- |
| B202 |
1984-85 |
Exhaust |
7509219 |
- |
| B202 |
1986-93 |
Intake |
7560808 |
7509227 |
| B202,B212 |
1986-93 |
Exhaust |
7560964 |
7509235 |
| B202i,
B212 |
1986-93 |
Intake |
7561467 |
- |
| B202
cat |
1986 |
Intake |
7518913 |
- |
| B234 |
1990-92 |
Intake |
9116690 |
- |
| B234 |
1990-92 |
Exhaust |
9116708 |
- |
| B234 |
1993 |
Intake |
9148305 |
- |
| B234 |
1993 |
Exhaust |
9148313 |
- |
| B234I |
1994-2000 |
Intake |
9145657 |
- |
| B234I |
1994-2000 |
Exhaust |
9145665 |
- |
| B206I,
B204I, B204L |
1994-98 |
Intake |
9145632 |
- |
| B206I,
B204I, B204L |
1994-98 |
Exhaust |
9145640 |
- |
| B204E,
B204L,B204I, B204R |
1998-2000 |
Intake |
9145632 |
- |
| B204E,
B204L, B204I, B204R |
1998-2000 |
Exhaust |
9145640 |
- |
| B205L,
B205R, B205E, B235R |
1999-2001 |
Intake |
9170887 |
- |
| B205L,
B205R, B205E |
1999-2001 |
Exhaust |
9188855 |
- |
| B235R |
1999-2001 |
Exhaust |
9170895 |
- |
Specs of tuning cams:
| |
Int Lift mm
|
Exh Lift mm
|
IVO (BTDC)
|
IVC (ABDC)
|
EVO (BTDC)
|
EVC (ATCD)
|
Valve Overlap
|
Int duration
|
Exh duration
|
| Swedish
Dynamics Red-series |
9.37 |
8.65
|
22.0
|
61.0
|
56.0 |
16.0
|
35.0
|
263.0
|
254.0
|
Catcams
Hydraulic tappet
sport-1 |
9.55 |
9.55
|
12.0
|
56.0
|
56.0
|
12.0
|
24.0
|
248.0
|
248.0
|
Catcams
Hydraulic tappet
sport-2 |
9.75 |
9.75
|
23.0
|
67.0
|
67.0
|
23.0
|
46.0
|
270.0
|
270.0
|
Catcams
Hydraulic tappet
Rally |
10.95 |
10.9
|
28.0
|
64.0
|
58.0
|
22.0
|
50.0
|
272.0
|
260.0
|
Catcams
mechanic tappet
Turbo |
11.3 |
11.3
|
18.0
|
58.0
|
58.0
|
18.0
|
36.0
|
256.0
|
256.0
|
Catcams
mechanic tappet
Race |
12.5 |
11.95
|
39.0
|
69.0
|
65.0
|
35.0
|
74.0
|
288.0
|
280.0
|
Simulations
A friend of mine is
doing some simulations after my computer models of the B202 spec.
The application is Dyno2000.
HP simulations of the different cams
These HP-estimates are simulated! The values shall not be treated as fact!
The simulations were performed on a B202 computer model, and the only thing that
was changed were the cam-specs.
Stock cams in a T16 B202
|
RPM |
B202 Turbo -1985 |
B202 Turbo 1986- |
B202i
1986- |
| 2000 |
56
|
55
|
57
|
| 2500 |
73
|
72
|
75
|
| 3000 |
91
|
90
|
92
|
| 3500 |
107
|
107
|
107
|
| 4000 |
122
|
123
|
121
|
| 4500 |
137
|
138
|
134
|
| 5000 |
150
|
150 |
143
|
| 5500 |
159
|
159 |
150
|
| 6000 |
165
|
163
|
152
|
| 6500 |
167
|
165
|
152
|
| 7000 |
164
|
162
|
147
|
| 7500 |
163
|
161
|
144
|
| 8000 |
155
|
153
|
135
|
| 8500 |
145
|
143
|
125
|
Hydraulic
tappets
|
RPM |
Stock |
SD red |
Catcams
sport-1 |
Catcams
sport-2 |
Catcams
ralley |
| 2000 |
56
|
53
|
56
|
49
|
50
|
| 2500 |
73
|
71
|
74
|
66
|
67
|
| 3000 |
91
|
89
|
92
|
84
|
85
|
| 3500 |
108
|
107
|
109
|
103
|
104
|
| 4000 |
125
|
125
|
124
|
122
|
122
|
| 4500 |
140
|
141
|
140
|
141
|
140
|
| 5000 |
152
|
155 |
153
|
158
|
158
|
| 5500 |
162
|
167 |
162
|
172
|
172
|
| 6000 |
167
|
173
|
168
|
185
|
184
|
| 6500 |
169
|
177
|
170
|
193
|
193
|
| 7000 |
166
|
175
|
167
|
198
|
197
|
| 7500 |
165
|
174
|
165
|
201
|
199
|
| 8000 |
157
|
168
|
157
|
200
|
197
|
| 8500 |
147
|
157
|
147
|
196
|
195
|
Mechanical
tappets
|
RPM |
Stock |
Catcams
turbo |
Catcams
race |
| 2000 |
58
|
57
|
41
|
| 2500 |
76
|
75
|
59
|
| 3000 |
95
|
95
|
76
|
| 3500 |
113
|
114
|
95
|
| 4000 |
131
|
132
|
116
|
| 4500 |
147
|
150
|
137
|
| 5000 |
160
|
167
|
158
|
| 5500 |
171
|
181
|
174
|
| 6000 |
176
|
192
|
191
|
| 6500 |
179
|
200
|
203
|
| 7000 |
176
|
202
|
212
|
| 7500 |
176
|
201
|
225
|
| 8000 |
168
|
197
|
226
|
| 8500 |
158
|
193
|
228
|
Iteration Results (based on different cam set-ups):
| model |
Int Lift mm
|
Exh Lift mm
|
IVO (BTDC)
|
IVC (ABDC)
|
EVO (BTDC)
|
EVC (ATCD)
|
Hp
/ RPM |
Nm
/ RPM |
results
order |
| Stock |
8.65
|
8.65
|
10.0
|
56.0
|
56.0
|
16.0
|
164/6500 |
218/4000 |
**** |
| Sim
1 |
9.60 |
9.60 |
22 |
63 |
68 |
22 |
192/7500 |
223/5000 |
1 |
| Sim
1 |
9.60 |
9.60 |
23 |
63 |
68 |
22 |
192/7500 |
223/5000 |
2 |
| Sim
1 |
9.60 |
9.52 |
20 |
63 |
68 |
22 |
192/7500 |
223/4500 |
3 |
| Sim
2 |
8.65 |
8.65 |
20 |
65 |
70 |
25 |
191/7500 |
218/5000 |
1 |
| Sim
2 |
8.65 |
8.65 |
13 |
65 |
70 |
25 |
191/7500 |
220/5000 |
2 |
| Sim
2 |
8.65 |
8.65 |
15 |
65 |
70 |
25 |
191/7500 |
220/5000 |
3 |
| Sim
3 |
8.65 |
8.65 |
12 |
60 |
68 |
19 |
179/6500 |
221/4500 |
1 |
| Sim
3 |
8.65 |
8.65 |
13 |
59 |
68 |
18 |
177/6500 |
221/4500 |
2 |
| Sim
3 |
8.65 |
8.65 |
14 |
61 |
68 |
18 |
179/6500 |
221/4500 |
3 |
My Computer
model, Sim 1 - target best HP :
- stock block
- stock cylinder head
- Turbo Garrett T45 48-9
- Intercooler 20%
- Boost 18 Psi
- rev 2000-7000 rpm
Cam parameters:
IVO: 10-25 step 1 degrees
IVC: 49-63 step 1 degrees
EVO: 53-69 step 1 degrees
EVC: 6-22 step 1 degrees
Int lift: 8.0-9.6 step 0.25 mm
Exh lift: 8.0-9.6 step 0.25 mm
Total tests: 4 439 040
My Computer
model, Sim 2 - target best HP :
- stock block
- stock cylinder head
- Turbo Garrett T45 48-9
- Intercooler 20%
- Boost 18 Psi
- rev 2000-7000 rpm
Cam parameters:
IVO: 0-20 step 1 degrees
IVC: 45-65 step 1 degrees
EVO: 45-70 step 1 degrees
EVC: 0-25 step 1 degrees
Int lift: 8.65 mm
Exh lift: 8.65 mm
Total tests: 298
116
My Computer
model, Sim 3 - target best torque :
- stock block
- stock cylinder head
- Turbo Garrett T45 48-9
- Intercooler 20%
- Boost 18 Psi
- rev 2000-7000 rpm
Cam parameters:
IVO: 0-20 step 1 degrees
IVC: 45-65 step 1 degrees
EVO: 45-70 step 1 degrees
EVC: 0-25 step 1 degrees
Int lift: 8.65 mm
Exh lift: 8.65 mm
Total tests: 298
116