• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
  • When posting a classified ad, you MUST select a prefix from the drop-down next to the subject line. If you don't you will get an error and your ad will not be posted!
Tips
Tips

TR2/3/3A Spark plug gap TR3?

Share this page

K

karls59tr

Obi Wan
Bronze
Country flag
Offline
I'm putting new NGK BPRHS spark plugs in my TR3. Manual says .032 for Tr3 and .025 for TR4. I've got a petronixx distributor,a Lucas sport coil,a header and a mild street cam. Anyone running similar? What plug gap is best under these mods?
 
karl, .032 should be best with what you have on the car. I still think .025 is the standard for a TR3, but I run .032 on the TR6 and .030 on the Roadster, they have a sports coil and CD system.

Wayne
 
Back
Top