REFLECTOR: Alternative engines

[Scott Derrick]

I can tell you that even using a non-normal aircraft engine can be a huge
task.

Installing a TSIO520 into a Std RG has been quite the journey.  Installing
an automotive based engine must be another magnitude of hurdles to jump.

A partial list of additional tasks not encountered in a standard install
on my 520.

Custom cooling NACA's
Custom intercooling lower scoop.
Custom engine mount.
Custom cooling plenum and attachments
Custom fuel
Custom cowling
Custom exhaust
Custom prop & attachments
Custom oil cooler and lines.
Customised injector system to fit under cowl
Custom turbo install to fit better under cowl

not down yet.... Tho I can make a big wind!

Scott

> Velocity owners/builders tend to be an outside the box group.
> Proportionately speaking, I see a lot of Velo builders opting for
> engines other than Lycoming/Continental/Franklin. Has anyone tried to
> figure out what the success rate is on the outside the box engines? Do
> you have to reinvent the wheel on the installs? Are there reliability
> issues? How hard to work out the bugs (cooling, fit, gear reduction,
> etc)? Are any cost or efficiency savings promised actually realized and
> worth it? Tom
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