Moss Engineering

33 Kings Lane
South Croxton
Leics. LE7 3RE

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Port timings on race engine

Inlet timing

IO 61 deg BTDC

IC 62 deg ATDC

Total inlet duration 123 degrees

Note! Piston skirt has 4mm cutout in bottom edge to correspond to inlet tract


Transfer timing

TO 62 deg BBDC

TC 64 deg ABDC

Total transfer duration 126 degrees

Exhaust timing

EO 85 deg BBDC

EC 86 deg ABDC

Total exhaust duration 171 degrees

Ignition timing using new B-TH magneto    21deg BTDC   

(please note this is valid only with this inlet efficiency and compression ratio) © 2003

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