This is probably a trade secret, but what material is used to fill boost ports in schnerle port engines? JB Weld, RTV, wood, or something else? I know we are not supposed to try this at home, but I want to any way.
Don Jones
Trade Secret
Stuka Stunt Main Forum · 5 of 5 known posts recovered
> This is probably a trade secret, but what material is used
>to fill boost ports in schnerle port engines? JB Weld, RTV,
>wood, or something else? I know we are not supposed to try
>this at home, but I want to any way.
>to fill boost ports in schnerle port engines? JB Weld, RTV,
>wood, or something else? I know we are not supposed to try
>this at home, but I want to any way.
It's no trade secret. Some folks use JB-Weld. Others use high temp silicon. Others may use different materials as well. High temp silicon works for me. It is a little more difficult to work with than JB Weld, but if I don't like the say the mod came out, I can cut the silicon out. JB Weld is a more permanant solution. If you prep the metal properly, once it is in place, that's it.
The key is whatever you use, it has to be able to withstand heat, fuel, and vibration.
The only application I have seen with wood was the insertion of the popsicle stick or trimmed down tongue depressor in the intake port of a Fox 35 to improve run characteristics in negative G maneuvers when side mounted. Crude, but it works for some.
Bob
Bob,
Do you put in your filler material in the port, then install the cylinder liner with some kind of release agent on the outside? by high temp silicon, do you mean high temp automotive RTV?
Don Jones