exhaust duration OMC 56er

[hupiveneilija]

Do anybody happen to know what is the exhaust duration deg. on a 56 omc? And deg. between exhaust and transfer aka blow down, also transfer deg.
On stock engine. Thanks.

[hupiveneilija]

I answer to myself;

duration
Ex 167deg
Tr 117deg
Bd 25deg
Bst 110deg


open
Ex 97deg ATC
Tr 122deg ATC
Bst 124deg ATC

white stock

[Powerabout]

lots of that is on the apba engine spec sheet for a sst60 if you like to compare