-------------- Original message from Ernest Christley <echristley@nc.rr.com>: --------------


> Kelly Troyer wrote:
>
> > Snip
> > > I believe your numbers are atypical. Most guys are seeing higher oil
> > > than water temps. But I believe that will be an installation specific
> > > condition. I'll be running without a thermostat. The water has a lot
> > > more thermal mass than the oil, so I expect the oil to come up to temp
> > > much faster. I'm planning a sliding door to cut the airflow through the
> > > strake mounted ducts, so it probably won't matter. I can get the temps
> > > up quickly on either one. But I still think the oil will get hotter
> > > faster than the water.
> >
> > Ernest,
> > Sliding door where ?? Inlet or outlet ??
> >
> > Kelly T
>
> Outlet. The part of the duct that made into the wheel-well will come up
> to meet the top skin, which will have shark gills molded into it. It's
> a simple matter to have a cable controlled aluminum plate that will
> slide between the two, blocking off some of the exit holes.
>
> My plan for building the shark gills is to use strips of 2" tape laid
> parallel. The first is laid, then half covered lengthwise with a piece
> of 2" wide, 1/2" thick foam. A strip of 2" tape is laid down so that it
> runs off both ends but only covers 1/2 of the foam lengthwise. Another
> foam strip and more tape, etc. Each strip is actually several plies for
> strength, and each will give about 5in^2 of exit area. There won't be
> any holes going straigth down, as I don't want this to be a funnel for
> rain water.I have room for about 8 to 10. Way more than necessary, but
> it is easier to cut back than to add on, and having a panel that will
> cover what isn't necessary make it better.
>
>  Ernest Christley

 

    Ernest,

        Are these "gills" to be on the exterior of the skin ?  If so has any

consideration been given to possible disruption to airflow and lift in

this area of the strake ? How about a drawing (crude or otherwise)

 

 Kelly T