Im having an issue with my bsp engine that i cant seem to figure out what to do about it, any help is appreciated. Here is the deal...
I have a brand new box stock project engine, it is set up for bsp rules for a track that i race every weekend. This track has its own rules for box stock, which is the max jet sizes we can run are .028 main and .019 low speed, so those are the jets in my motor, but my engine is running way too lean and building alot of heat, sometimes up to 440 degree's with no tape on the blower housing at all. The plug is brand new and after 2 races, its still white as can be on the porcelain and only a tiny bit of black around the plug itself. When i ran AKRA with another engine that was identical to this, the plug was always a nice chocolate brown color, but then again it was jetted completely different and timing was much more also.
What can i do about this problem without raising the jetting in the engine? Or am i just basically stuck with having to run it lean like this? I cant imagine it being very good for my motor to be running so lean that the plug is actually white. The engine is wicked fast the way it is, but theres no way it can be healthy for it to be that lean or that hot! This is with stock airbox and filter, 3/4" weinie pipe, stock flywheel and timing, basically everything bone stock except for a bsp cam. I have tried tweaking with the low speed idle mixture screw on the back of the carb and i have it maxed out as rich as i can get it, but still too lean.
I have a brand new box stock project engine, it is set up for bsp rules for a track that i race every weekend. This track has its own rules for box stock, which is the max jet sizes we can run are .028 main and .019 low speed, so those are the jets in my motor, but my engine is running way too lean and building alot of heat, sometimes up to 440 degree's with no tape on the blower housing at all. The plug is brand new and after 2 races, its still white as can be on the porcelain and only a tiny bit of black around the plug itself. When i ran AKRA with another engine that was identical to this, the plug was always a nice chocolate brown color, but then again it was jetted completely different and timing was much more also.
What can i do about this problem without raising the jetting in the engine? Or am i just basically stuck with having to run it lean like this? I cant imagine it being very good for my motor to be running so lean that the plug is actually white. The engine is wicked fast the way it is, but theres no way it can be healthy for it to be that lean or that hot! This is with stock airbox and filter, 3/4" weinie pipe, stock flywheel and timing, basically everything bone stock except for a bsp cam. I have tried tweaking with the low speed idle mixture screw on the back of the carb and i have it maxed out as rich as i can get it, but still too lean.