Thankyou to all who have answered my questions on the Lyc-390. The info and photos have been most helpfull.
Rhonda , I did try contacting you a couple of days ago but your web site would not come up. Maybe it was something I was not doing correctly.
So now that I have you on line , can I ask a few questions please ?.
What is your curent sell price for the AEIO-390 assembled , balanced and fine-tuned as you mentioned above ? I don't know that you really need the AEIO-390 for your -7. The IO-390 will more than handle any aerobatics that your airframe is capable of handling. The only difference in the IO and the AEIO engine is the Christen Inverted Oil kit. The IO currently sells for $32,919, and the AEIO sells for $34,500. (All new Lycoming components, including roller tappets/cam, includes Sky-tec hi-torque n line starter, slick mags and harness, and either Precision Silverhawk or Airflow Performance fuel system.) Rotating assembly will be dynamically balanced, rods/pistons match balanced, cylinders reworked with Venturi seats (helps eliminate uneven guide wear, which leads to sticky valves) and cylinders will be ported. Custom paint prior to assembly. After assembly the engine will be water break dyno tested for 1.5 hours, preserved and foam crated for secure shipment. OK also has no sales tax on aircraft parts (which is nice.)What is not included in this price ? ? Engine does not come with the prop governor, alternator electronic boost pump or exhaust.
Does it truly produce 210hp at 2,700rpm ? ? Oh yeah! The most recent one we tested for Mike Goretsas did 212. We consistently see 213-215 on the dyno, and the highest hp we've ever seen was 219. Note: this was an anomoly.
Is it forward facing cold air induction sump like the XP400 ? The engine is a forward facing induction. It is actually the IO-360-M1B sump/pipes. This is not a true cold air induction because the plenum is not separate from the sump. The air chamber in the sump is separated, but not completely outside of the sump. What you get from this sump is a ram air effect. I am keen to ensure it is able to breathe to it's max through the air-box , therefore without having to try Ram-Air !.
Which exhaust should I purchase from Vans for the 390 to suit my 7A ? ? You can purchase your exhaust from several places, including Larry Vetterman, John Forsling and Aerospace Welding in Minneapolis. All have experience building exhausts for the RV equipped 390.
What is the true all up weight of the AEIO-390 with the light weight add-ons , compared to say an IO-360 180hp engine , which I understand is about 375lbs ? Absolute true blue weight of the IO-390 is 308 lbs. The parallel head 360 wieghs in somewhere between 275 - 286 depending on how it is equipped. The angle head 360 (200 hp) weighs 299. The extra weight comes from the c/w crankshaft and the bigger cylinders.
Any thoughts on the prop to best suit the 390 ? ? I am considering using the MT 3 blade hydraulic C/S prop! Depends on your budget! Hartzell has a couple of approved props for the engine, and I know that MT did some analysis on one of our 390s in an RV-8 not long ago. I am by no means a prop expert.
Sorry about so many questions.
Regards
Allen