REFLECTOR: Engine Plenum

[Scott Derrick]

Its hard to believe that nobody here has built their plenum with an 
improvement over the method shown in the manual?


Scott Derrick wrote:

> I was fitting the plenum on my TSIO520 today,  cutting and filing to 
> get it as low as possible to allow room for a partially modified upper 
> standard cowling.   After I shortened the upper deck manifold and 
> rerouted some of the injection lines I got it as low as practicable.
>
> Now I would like to make the edges that contact the engine more 
> "rubbing" friendly with some kind of silicone edging, it would be nice 
> to have something that slipped over the edge like door seal stuff.  
> What are people using?  I know I can cut Silicone baffle strips and 
> glue and rivet but I thought there might be something a bit more cool 
> looking.
>
> I looked on the Velocity site and the gallery and the only thing I saw 
> was siliconing(as in gluing) the edges to the engine(YUCK).
>
> Also how are people attaching the firewall, runner to plenum assembly. 
> The manual has a direct connection which has no slip joint to 
> accommodate the engine moving around.
> Also regarding the runners to the firewall, the manual has us using 
> the cowl screws to hold the runner to the firewall. I'm still toying 
> with the idea of a groove for the cowl to slip into and doing away 
> with all those screws.   Any other suggestions?
>
> I searched my email archives and came up with nada on "plenum" in the 
> subject line.
>
> Pictures are of course are greatly appreciated.
>
> Scott
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