Turbo Subaru RV8

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rv6ejguy

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Jun 26, 2012
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Location
Calgary, Alberta, Canada
geoffrv8.jpg

Geoff Braddock flew his EJ257 powered RV8 on Dec. 27th in Australia

Empty weight was 1187lbs. He's using an Autoflight H6 300 gearbox with 1.95 ratio and an IVO 68 inch in-flight adjustable prop.

A few initial numbers: 2500fpm climb at 90 knots with full fuel running 5500 rpm and about 44 inches. Cruise at 4500 MSL, 4500rpm and unspecified MAP was 170 KTAS.

The under wing rads look great and are cooling very well even in +35C conditions. Geoff did a great job on the whole installation- all custom made by him. Bravo!
 

rv6ejguy

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Jun 26, 2012
Messages
3,749
Location
Calgary, Alberta, Canada
What sort of HP would you roughly estimate it's got Ross?

And importantly, thermostat or no thermostat?
Judging from the climb performance compared to other RVs of similar weight, I'd guess hp at around 215-225 at 44 inches/5500 rpm.

I'm only guessing, it probably runs a thermostat- those crazy Aussies...
 

BJC

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Oct 7, 2013
Messages
11,259
Location
97FL, Florida, USA
Thanks for the updated link.

That installation looks very nice, and also looks like quite a bit more work than going with the standard Lycoming.

Looking forward to more flight performance data.


BJC
 
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