 Re: least expensive engine modification for performance
Awesome info.
The closest NGK Iridium plug to fit the 80cc Chengines is BR6HIX, which is two steps cooler than the recommended NGK BR4HS (B4HS). Might be too cool though and foul.....
After I get it running, I may research some exhaust mods. My buddy made a copper exhaust manifold unit.
Also, as mentioned a well tuned carb with a slightly oil rich mix (and air/fuel mix to match) will eek out a tiny bit more power. |