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  1. Post on Subaru EA81 in 4-strokes

    By bcbushcaddy, posted
    Hello all, 
    Not sure if I am posting this twice - just lost my sat momentarily and killed the previous post. In either case here it is again. Couple of pics below of our Subaru EA81 engine and re-drive set up. Only started flying it so too early for me to answer to many specific questions but this is what was done to the engine to modify it. Stratus profiled Cam (no longer available as far as I know, but use local engine shop), higher compression, flowed heads (flow charts to follow), stock ignition, 38 amp after-market alternator, VW Jetta radiator with stock pump and pulley regulated by 16psi cap with 190F thermostat; 
    cooling works well, PCV return (right side of re-drive) line will be changed up slightly, air filter - may go bigger, wondering if it leans me a bit too much at high power settings?, electrics - simple is good and same for ignition, points are cheap..., TBI-40 works well, but it is finicki in downdraft mode,  ...and a little glimpse of the other side of the firewall. We will try to post a few more inputs as we get them over the next little while testing this set up here. If you have questions of a similar installation with the TBI, but gear driven than Willis (Marshawk) can probably give you more feedback than "moi", ..as I am only getting started flying it and testing it. 





  2. parting out an avid mklV after battle with severe carby ice and wind shear on flare.
    Forward fuselarge, radiator and under carriage u/s. Most other parts available including wheels and brakes. flaperons broke off wings, one slightly damaged. One stol wing undamaged one has minor damage at root of wing. Motor is subaru ea81 with reduction drive. All instruments ok.
    custom made trailer also available
    can supply photos if interested.
    email holz.ross@gmail.com to discuss, dont look at this web page regularly .
  3. Hi, I Jeb, newbie - after searching I thought I'd join this forum to get help on cooling.
    I'm building a KR2s with a EA81 turbo drawing through a EFS-3A  (not flying yet) I've got the NSI intake manifold, belly mounted radiator/
    It's been a long time, but I'm finally getting back to building since retirement, it runs great
    My question: does coolant flow into the bottom of the turbo or from the top?
    see picture, Any help appreciated.

  4. I recently bought a Mk4 HH with a Subaru EA81 on the front. I am planning on cleaning up the panel to make space and to consolidate my inside view points (help keep my eyes outside). I'm trying to determine which if any digital monitoring systems offered for Experimental Aircraft, are compatible with the EA81. The only product I've been able to find, thus far, is the SDS equipment which seems to be setup for more than just monitoring. Any help is greatly appreciated, thanks in advance.