steve Posted May 20, 2008 Share Posted May 20, 2008 i am looking for any info as per the install wight of a 20b and was wondering if i need the 2 turbos it came with? what hp should i be shooting for ? i am willing to cut the tub and add to the center how much? i think 400# and 240 hp with no turbos and low com. roters? this is a big step for me and my cozy much thank you to all who partiapate any links to a flyer would be cool Quote Steve M. Parkins Link to comment Share on other sites More sharing options...
CBarber Posted May 21, 2008 Share Posted May 21, 2008 First try Al Guetzens site, he is flying a 20b in a Velocity SE with solid success. http://members.cox.net/alg3/airplane.htm For much useful info go to Paul Lamar's site http://www.rotaryeng.net/. His site has a lot of information and his email list is full of folks who enjoy rotary theory. For an email list full of very practical information from builders and flyers, go to www.flyrotary.com and join the email list. Finally, check out Tracy Crooks company, Real World Solutions (RWS) at www.rotaryaviation. Tracy is a retired engineer who sell ECU's, Engine monitor and PSRU/Re-drives' amoung a few other things (rebuild kits etc) for the Mazda 13b and 20b. He just clicked over 1700 hrs in the air with rotaries. He flys an RV-4 that he change from a 13b to a Renesis and is building a RV-8 with a 20b. 'course, you may already know all of this. Good luck. All the best, Chris Quote Christopher Barber Velocity SE/FG w/yoke. Zoom, zoom, zoom. www.LoneStarVelocity.com Live with Passion... Link to comment Share on other sites More sharing options...
steve Posted May 21, 2008 Author Share Posted May 21, 2008 thx Chris, I'll jump on it. i got time yet and i need the shop built but no point in waiting till the last minute get out your pencils and try to follow me on this one........ IF i need to cut, here's my thoughts don't touch the fuel tanks but rather cut around them so i could pull on the nose of the plane and make it longer ? the cut mite go like this, start at the upper long, wait this cant work wow there is so much stuff in the way...hum gullwing? fhc? air brake? seat back? fuel lines? control stick's? EEKKKKKK i getting dizzy now. OK regroup....150#over will need how much in the nose? any body? I'm up to 150 now that i don't smoke (can we say fat)lol so that will help Quote Steve M. Parkins Link to comment Share on other sites More sharing options...
Neverquit Posted May 21, 2008 Share Posted May 21, 2008 Is this it Steve?? You've gone to the 20B side for sure? And still not smoking? Daddy proud o' you! By the way, 150#? Dude, go get a burger and stop spending on the plane for food. Good luck! Quote Link to comment Share on other sites More sharing options...
Steve Innova Posted May 21, 2008 Share Posted May 21, 2008 I have no direct experience w/Mazda rotaries, but I have watched others struggle for the last 4 years with turbos. Can I suggest initially installing the 20b without the turbos. You'll save lots of time and have a more reliable engine to test your aircraft. Then after a year or two, when you're getting the itch to build again, and your comfortable with the airframe and the engine cooling, then add turbos if you still want them. Quote Link to comment Share on other sites More sharing options...
dirtdox Posted May 21, 2008 Share Posted May 21, 2008 An O540 weighs around 400#. They have been installed without stretching the fuselage. Quote Link to comment Share on other sites More sharing options...
steve Posted May 21, 2008 Author Share Posted May 21, 2008 Is this it Steve?? You've gone to the 20B side for sure? And still not smoking? Daddy proud o' you! By the way, 150#? Dude, go get a burger and stop spending on the plane for food. Good luck! yup, just finished the deal for the 20b and the cg mount.just about a year now without my cigarettes:D i dont have a scale(90% of life still in storage)but the last time i got wighted in was on a big scale where i got the wing foam and it said 155:confused: i figure 5# per month, but for how long ?? ps, i eat all the time now:bad: Quote Steve M. Parkins Link to comment Share on other sites More sharing options...
steve Posted May 21, 2008 Author Share Posted May 21, 2008 I have no direct experience w/Mazda rotaries, but I have watched others struggle for the last 4 years with turbos. Can I suggest initially installing the 20b without the turbos. You'll save lots of time and have a more reliable engine to test your aircraft. Then after a year or two, when you're getting the itch to build again, and your comfortable with the airframe and the engine cooling, then add turbos if you still want them. that was my thoughts as well, but do i change out the rotters for the 9.7 or go with the 9.0 ? Quote Steve M. Parkins Link to comment Share on other sites More sharing options...
steve Posted June 8, 2008 Author Share Posted June 8, 2008 i wonder if it dreems...... Quote Steve M. Parkins Link to comment Share on other sites More sharing options...
mplafleur Posted June 8, 2008 Share Posted June 8, 2008 i wonder if it dreems......I bet it whimpers and cries in its sleep. Quote Mike LaFLeur - Cozy MkIV #1155N68ML Link to comment Share on other sites More sharing options...
steve Posted July 30, 2009 Author Share Posted July 30, 2009 Is this it Steve?? You've gone to the 20B side for sure? And still not smoking? Daddy proud o' you! By the way, 150#? Dude, go get a burger and stop spending on the plane for food. Good luck!164# wow, no more w/b issue's Quote Steve M. Parkins Link to comment Share on other sites More sharing options...
mplafleur Posted July 30, 2009 Share Posted July 30, 2009 Have you decided to ditch the turbo's? Quote Mike LaFLeur - Cozy MkIV #1155N68ML Link to comment Share on other sites More sharing options...
steve Posted July 30, 2009 Author Share Posted July 30, 2009 Have you decided to ditch the turbo's?i wont need the twin set up, AL has no turbos and the low compression rotor's(9.1) same as mine and are intakes look about the same and hes 170knt @ 50% power burning 9.5. Quote Steve M. Parkins Link to comment Share on other sites More sharing options...
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