• 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
Tips
Tips

pinging / pre ignition

AndriesS

Freshman Member
Country flag
Offline
I've got 1275, scatter cam 60" oversize engine running a weber dcoe , lcb, all balanced. I'm using a Nissan distributer and have set the timing to 11btdc. maximum top out at around 33 @3500

This setting works well where I stay , i.e. 1400m above sea level, using 93 octane fuel. However on a recent regularity rally which ran across mountains to sea level I suffered from pinging at high and low altitude, low altitude was easily managed but mountain passes was a bit of a challenge.

Any suggestion on how to fix it, short of changing timing settings while driving?
 
Try a lower spark plug temperature. That fixed my pinging issues.
 
Back
Top