• The Biplane Forum is a large global active community of biplane builders, owners and pilots. From Pitts to Skybolts, to older barnstormers, all types are welcome. In addition to our active community, our content boasts exhaustive technical information which is often sought after for projects and maintenance. This information has accumulated over the 12+ years the forum has been in existence.

    The Biplane Forum is a private community. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched source of information not found anywhere else on the web. We are also a great resource for non biplane users, since many GA aircraft are built the same way (fabric and tube construction). Annual membership also comes with two BiplaneForum.com decals.



Engine Run !

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

macwolf

Well-Known Member
Lifetime Supporter
Joined
Aug 18, 2006
Messages
1,142
Reaction score
15




Hi, well it was a big milestone today for me!Finally after over a year of my engine sitting in the engine shop, and visits on weekends to work on it, we finally finished and ran it up today. It's an 0-360-a1ad converted to a TBI for fuel injection and a superior cold air intake/sump system. I brought it in from Germany where it had been on ice since the early 90's, and we stripped it down to nuts and bolts and rebuilt it up over the past year.Everything went smoothly. Took2 halfdays to move the engine from its stand onto the test bench (on the back of a truck), connect everything up, double check everything, fill with hot oil, and go for a drive onto the apron to fire it up.I'm pretty impressed with the Rotec throttle body fuel injector. Started almost immediately every time - even after a 1 hour run at full throttle. I put a few videos on my site, but here is a pic of the occasion :)
20110827_004130_IMG_0356_small.jpg
20110827_003605_runup.jpg
Results - still working out the calcs, but with 10:1 pistons and the cold air induction system / rotec TBI, we achieved 2850 rpm with MP of 29" with the test prop using just the stock straight test exhausts. Not sure how much, if anything, the 4-1 will add on top of that, kinda distracted with deafning sound of it at full tilt .. quite staggering. I thought I was used to the sound of big engines after my Yak's M14p.. but this little sucker blew me away.

Edited by: macwolf
 

Latest posts

Back
Top