Cone plug heads
PMB Model Boats
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Twin cone heads on CMB 90 EVO2002. Although spaced
differently, performance with the same trapped compression ratio is
identical. |
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.21 head with Globee flat coil plug with taper seal
held in with steel locking collar. |
.21 single cone head using Nelson cone plug ( Nelson
cone plug is a bigger o.d. than Novarossi or CMB cone plugs.) |
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Twin cone plug head for CMB 21 SS |
Twin cone plug head for CMB 21 SS |
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Return to technical information -(free stuff)
Engine racetuning software
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