REFLECTOR: Smooth running Customized TSIO520
Scott Derrick
scott at tnstaafl.net
Tue Feb 3 08:17:47 CST 2009
Al, its a Catto prop, fixed pitch. Which in part contributed to the long
path in getting it running right. All the documentation to set this
engine up assumes a constant speed prop.
I think 2250 is about right. But really won't know until flight
testing. Craig said to expect a low static rpm. Normal cruise rpm is 2500.
Had a problem getting the data out of the Dynon yesterday to check the
mixture settings. Running Windoze in a virtual machine on top of Linux,
and Bill didn't like that! I think I have the USB snafu fixed now, will
try again tomorrow.
Scott
Al Gietzen wrote:
>
>
> I am seeing 2250 rpm static at 37 inches MAP. I need to download the
>
> engine data and verify the mixture map is correct, but the EGTS all
>
> looked well in the ROP zone.
>
>
>
> Congratulations on getting it to this point. Always a challenge. What
> sort of prop are you turning? Seems you should be getting more than 2250
> at that boost; but then maybe it’s quite a bit ROP. Did you note the
> fuel burn?
>
>
>
> Time to start on the cowl modifications. Fitting this size engine in a
>
> STD cowl area is not possible. Hopefully the enlarged rearward radius
>
> and lower P51 scoop won't destroy the V's great lines...
>
>
>
> Have fun with that. I went through that as well; fortunately I was
> making mine smallerJ. I’m sure it will look fine; but will add some drag
> and maybe reduce prop efficiency a bit.
>
>
>
> Best.
>
>
>
> Al
>
>
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