 |
| Durasi Knalpot 2 tak |
EXHAUS DURASI
RPM DURASI
10.000 � 11.000 194 � - 196
11.000 � 12.000 196 � - 198 �
12.000 � 13.000 198 � - 200 �
13.000 � 14.000 200 � - 202 �
14.000 -15.000 202-204
RUMUS DURASI EXHAUS
| T� + R� - L�. 2 X R X T |
PANJANG STANG PISTON
DURASI EXHAUS = ( 180� � CO) X 2
T = R + L � E
R = STROKE DIBAGI 2
L = PANJANG STANG PISTON
E = TINGGI LOBANG EXHAUS DARI T.M.A
EXE : 1 YAMAHA F.1.ZR
STROKE : 52mm TINGGI EXHAUS : 26mm PANJANG CONROD : 96mm
R = 52 : 2 = 26mm E = 26mm L = 96mm T = 26 + 96 � 26 = 96mm
| 6� + 26� - 96�. 2 X 26 X 96 |
D = ( 180� � COS ) X 2
D = ( 180� � COS O,135416666 ) X 2
D = ( 180� � 82,217 ) X 2
D = 97,782 X 2 = 195,565 ? DURASI EXHAUS = 196� ? 11.000 RPM
EXE : 2
STROKE : 52mm TINGGI EXHAUS : 25mm PANJANG CONROD : 96mm
R = 52 :2 = 26mm E = 25mm L = 96mm T = 26 + 96 � 25 = 97mm
| |
| 97� + 26� - 96�. 2 X 26 X 97 |
D = ( 180� � COS ) X 2
D = ( 180� � COS O,172283901 ) X 2
D = ( 180� � 80,079 ) X 2
D = 99,921 X 2 = 199,842 ? DURASI EXHAUS = 200� ? 13.000 RPM
* EXHAUST PIPE *
L = ED X42545
RPM
L = PANJANG IDEAL KNALPOT . ( dari PISTON sampai pertengahan CONE BAFLE ).
ED = Exhaust Durasi
RPM = Putaran mesin pada Exhaust Durasi
EXE : 1 EXHAUST : 26mm DURASI : 196� RPM : 11.000
| |
L = 196 X 42545 = 758mm
11.000
EXE : 2 EXHAUST : 25 mm DURASI : 200� RPM : 13000
L= 200 X 42545 = 654.5 mm
13.000
* HEADER
� Port dalam exhaust : 100cc ? 140cc 34mm ? 40mm
140cc ? 175cc 40mm ? 46mm
Panjang haeder : 7.8 ? 8.8 x � Port exhaust
Sudut header : 1� ? 2� max ( road race ) . 2� ? 3� max ( motocross )
* FLANK . Jarak antara piston dan header : 60mm � 80mm
* DIFFUSER Sudut Diffuser : Stage 1 = 6.5 � ? 7.5 �
Stage 2 = 4.5 � ; 7.5 �
Stage 3 = 4.5� ; 7.5� ; 9� ? 10�
*BELLY
� Belly 2 ? 3 X � Port exhaust Panjang belly = L � ( Header + Diffuser + � Bafle )
*BAFLE < Bafle 9� - 12�
*STINGER PANJANG PIPA � DALAM PIPA
125cc � 145cc ------ 150mm � 265mm 19mm � 23mm
145cc � 175cc ------ 150mm � 320mm 22mm � 27mm
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