Subaru EG33 hammers all competitors

[EG33-Glasair]

In past races we were blowing away our class so badly that we decided to voluntarily move up one class for the 2018 racing season. Crying and whining from a pilot in the next class started because he knew that we would crush that class. The Race Director asked if we would move up two classes … we agreed.
The Memorial Air Race was held at Terrell Texas this last weekend. 34 aircraft ran in this race. We sliced and diced every one of them. Our speed was 32MPH faster than the second place entrant!
I must admit none of the 270+ MPH guys showed up for this race.
I love this little 202 cubic inch Subaru engine.
Russell Sherwood - Glasair I RG / Subaru EG33

[Blacky]

Congrats once again Russell. Keep it up.

[huck369]

SWEET! Keep Showing them what a Subaru EG33 Engine can do!

[wdb]

Awesome news, congratulations?

How are classes determined?

[RisingPhoenix]

Originally Posted by EG33-Glasair

In past races we were blowing away our class so badly that we decided to voluntarily move up one class for the 2018 racing season. Crying and whining from a pilot in the next class started because he knew that we would crush that class. The Race Director asked if we would move up two classes … we agreed.
The Memorial Air Race was held at Terrell Texas this last weekend. 34 aircraft ran in this race. We sliced and diced every one of them. Our speed was 32MPH faster than the second place entrant!
I must admit none of the 270+ MPH guys showed up for this race.
I love this little 202 cubic inch Subaru engine.
Russell Sherwood - Glasair I RG / Subaru EG33

Mods and pics please

[EG33-Glasair]

How are classes determined?[/QUOTE]

Generally the classes are divided into Experimental (such as mine), Certified and Military. Those are further split by Fixed or Retractable landing gear, Turbo or Normal aspirated, lastly by size of the engine.
Russell Sherwood

[EG33-Glasair]

Originally Posted by RisingPhoenix

Mods and pics please

The engine is completely factory stock with the exception of custom exhaust and intake manifolds that I designed and built ... see the attached photos. I also have about a dozen YouTube videos, I like this one because it is only a few seconds long. https://www.youtube.com/watch?v=6T9xFf97E-s

[RisingPhoenix]

Oh, nice. Looks great...but the throttle body looks like aftermarket.

So, these engines are installed backwards on planes?

[EG33-Glasair]

Originally Posted by RisingPhoenix

Oh, nice. Looks great...but the throttle body looks like aftermarket.

So, these engines are installed backwards on planes?

The throttle body is original EG33, you can't see it in the photo, it is on the back side of the PSRU (transmission). The black part you see is the original EG33 airflow sensor.
Russell Sherwood

[Blacky]

How is it cooled? I can't see the radiator.

[EG33-Glasair]

Originally Posted by Blacky

How is it cooled? I can't see the radiator.

Blacky, the radiator is behind the seat. If you are familiar the P51 Mustang from World War II, the cooling design is a close copy of that aircraft. I did make a few aerodynamic changes for airflow improvements. See the photo.
Russell Sherwood

[bwb3]

Loving reading your posts. Maybe I missed it but, what do you use for an ECU?
Gene

[EG33-Glasair]

Originally Posted by bwb3

Loving reading your posts. Maybe I missed it but, what do you use for an ECU?
Gene

bwb3, the ECU is also stock Subaru EG33. Much of the brain power of the ECU is unused, I don't need all the car inputs that are unnecessary in an airplane such as backup lights. BTW I have no oxygen sensors … avgas has lead in it and will foul the sensors. Since the ECU has no O2 input it just reverts to a lookup table for adjustments. Russell Sherwood

[Blacky]

Originally Posted by EG33-Glasair

bwb3, the ECU is also stock Subaru EG33. Much of the brain power of the ECU is unused, I don't need all the car inputs that are unnecessary in an airplane such as backup lights. BTW I have no oxygen sensors … avgas has lead in it and will foul the sensors. Since the ECU has no O2 input it just reverts to a lookup table for adjustments. Russell Sherwood

Very useful information. I have a spare low mileage EG33 which I'd love to put in my boat. There's now one less thing to worry about.

[SoCoNoHa]

Just curious, did you look into the EZ30 engine before selecting the EG33? I only ask because the EZ is much lighter and more compact with a similar power level. Was there a massive benefit to the EG?

PS I have to say, if an SVX engine is gonna go into something other than an SVX, this is how it should be done. Awesome job.