Robert Pesak’s plenum design. The plenums are super effective to the point of having to wait a while to get the motor up to operating temperature. You just can’t overheat the motor with them. The highest oil temp I’ve seen is around 190 after a climb to 8,500 feet. 
I am at sea right now for the next month so I can’t get you any pictures of it but if you message me next month I can get you pictures. 

Victor Taylor
Irvington Alabama

On Sep 19, 2023, at 23:12, Zachary Martine via KRnet <krnet@list.krnet.org> wrote:


Does anyone know if there is any details that Robert had made about the aluminum plenums for his O-200? They seem like they'd be very effective. The workmanship is beautiful. 

On Tue, Sep 19, 2023, 4:56 PM Larry Flesner via KRnet <krnet@list.krnet.org> wrote:

On 9/19/2023 11:21 AM, Dr. Feng Hsu wrote:
> Amazing pictures of Robert Pesak's KR bird! Thank you Larry for
> sharing! By the way, can you also share some pictures of Robert, such
> as he was in the KR gathering in the past....?
>
> Dr. Hsu
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Mark Langford provided the site address with all the photos.  I looked
at several of the past Gathering photo sites and only found one photo of
Robert when he was accepting a trophy.  If anyone has others I would ask
them to post them.

Larry Flesner

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