-
Hi Guest!
If you appreciate British Car Forum and our 25 years of supporting British car enthusiasts with technical and anicdotal information, collected from our thousands of great members, please support us with a low-cost subscription. You can become a supporting member for less than the dues of most car clubs.
There are some perks with a member upgrade!**Upgrade Now**
(PS: Subscribers don't see this gawd-aweful banner
Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
Timing, what rpm?
- Thread starter AUSMHLY
- Start date
Share this page
OP
AUSMHLY
Yoda
Offline
Offline
AUSMHLY, Here's the page from the Bentley Manual for the Big Healey. I believe that the centrifigal advance starts to come into play just at or a tecsh beyond 600 rpms. So if your setting the timing at whatever at an rpm above 600 you are allowing the centrifigal to do some of the base/initial set point. If then you were to slow the rpms down to 600 you would find that your base/initial is alittle lower that what you set it at. Unless you are racing that isn't going to affect you to much. As a matter of fact, at the lower base setting at 600 rpms it will go a long way to keep your engine from pinging or running on after shut-off. But I generally have my timing anywhere from 10 to 15 degrees BTDC at around 800 rpms. Here's the page:
