Intercontinental A Junior Piston Port Engines, 1995 Homologation
Intake Exhaust
------------------- -------------------------
Engine Bore Stroke Degs Inches Width Degs Inches Width Web
----------- ------ ------ ----- ------ ----- ----- ------ ------ ----
Comer P50 1.9685 1.9882 160.43 .949 1.379 172.4 1.297 1.537 .157
Comer B52 1.9385 2.0472 159.13 .969 1.358 171.2 1.347 1.516 .157
CRG S30-T1 1.9685 1.9882 160.4 .949 1.378 172.4 1.297 1.528 .150
Dino M3 1.9685 1.9685 160.8 .942 1.378 172.8 1.281 1.536 .157
Fox MC 30P 1.9645 1.9921 160.4 .951 1.376 172.4 1.300 1.490 .114
Italsis MA21 1.9685 1.9882 160.3 .948 1.379 172.3 1.298 1.537 .157
Parilla PV95 1.9685 1.9685 160.8 .942 1.379 172.8 1.281 1.541 .161
PCR PV95 * 1.9685 1.9882 160.5 .952 1.379 172.6 1.298 1.537 .157
Rotax PP95 1.9685 1.9882 160.5 .950 1.379 172.6 1.295 1.537 .157
Solo PP98 1.9685 1.9685 160.8 .942 1.378 172.8 1.281 1.536 .157
Titan PP95 1.9685 1.9882 160.5 .950 1.378 172.6 1.295 1.535 .157
TKM BT95 1.9685 1.9882 160.4 .949 1.385 172.4 1.297 1.542 .157
Vortex VA95 1.9685 1.9882 160.3 .948 1.385 172.3 1.298 1.542 .157
* 98mm rod, all others 100mm
-> Degrees are total from opening to closing.
-> Inches are from TDC.
-> Intake opening inches are NOT with IKF/WKA port tech tool. From TDC to port opening, counting bevel on skirt.
-> Exhaust Inches are from TDC with .110″ IKF/WKA port tech tool.
-> Widths are chord dimensions.
-> The formulas for calculating maximum port widths are:
Exhaust port(s) chord width = Standard Bore x pi x .223 + any web
Inlet port(s) chord width = Standard Bore x pi x .223 + any web
-> Inlet port tract length is 3.5827″ (91mm) minimum from the bore center line to the carburator mounting surface, including any spacer blocks.
-> Number of transfers are free.
-> 100cc max. displacement. (6.1024 cubic inches)
-> CIK homologated butterfly carburators only.
Air horn = 1.1811″ max. diameter.
Venturi = .9449″ max. diameter, .0787″ long min.
Throttle bore = 1.0629″ diameter max.
-> Crank case pulse hole, .128″ max.
-> CIK homologated side pods, drivers fairing, and nose piece.
-> CIK homologated intake silencer.
-> 286lbs (130kg)
-> The official method of measuring port heights is in degrees using a minimum 200mm (7.875″) diameter degree wheel.
1995 Engine Homologation book page numbers:
Comer P50 112 Comer B52 123 CRG S30-T1 141 Dino M3 209 Fox MC 30P 489 Italsistem MA21 399 Parilla PV95 289 PCR PV95 560 Rotax PP95 75 Solo 183 Titan PP95 243 TKM BT95 577 Vortex VA95 612
