![]() |
![]() |
|
6 cyl Bristol cars Type 400 to 406 - restoration, repair, maintenance etc |
|
Thread Tools | Search this Thread | Display Modes |
|
|||
![]() I have been asked the following by my engine builder and I don't know the answers. Can anyone help?
Rocker ratio. Duration and lift on a 40:80:8040 cam. Valve lift Spring pressures on the seat and on the head. Any help would be appreciated. I can't find this info in the manual but I might be misunderstanding the terms. Peter |