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03-05-2014, 07:14 AM
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Join Date: Dec 2006
Location: Montana
Posts: 67
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If you want that much power, I think the parallel valve IO-370 would be a better option.
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D.J. Roberts
RV-9
Empenage Finished
Wings Finished
Working on Fuselage
My blog
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03-05-2014, 08:02 AM
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Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,120
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Is the IO-390 a parallel valve or angle valve engine?
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Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2020 dues paid 
N16GN flying 700 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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03-05-2014, 09:00 AM
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Join Date: Apr 2008
Location: Indianapolis, IN
Posts: 1,069
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390 is angle valve
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Ryan Allen, CFII
RV7 N612RA, flying since july 2012
E-170/175
RV10 Tail Kit complete, Wings 90%, fuse on order
Acro Sport 2, building
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04-01-2014, 11:04 AM
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Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,805
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Quote:
Originally Posted by Naigool
I believe many pilot are not aware on this and will build the aircraft! After reading this article I know I will limit my future RV7 to 200HP,,,
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Yes! I read that, and I'm sure I'll be fine with 150 or 160 hp!!
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Doug
RV-9A "slider"
Flew to Osh in 2017, 2018 & 2019! 
Tail number N427DK
Donation made for 2020
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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07-14-2014, 06:48 PM
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Join Date: May 2012
Location: Ga
Posts: 662
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Thinking about it
I have a low time io360 angle valve sittin in the corner of hanger and I was thinking about hanging it on the -9.
I'd also be interested if anyone else has tried it and what their feedback was.
Quote:
Originally Posted by brister
Has anyone installed a angle valve IO-360 on a RV9?
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Craig
RV-3 Sold
RV-4 Sold
RV-6a Sold
RV-9 IO-360 CS, Built and Flying
Aerostar 600A, Family Hotrod
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07-14-2014, 07:30 PM
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Join Date: Jan 2008
Location: KTCY
Posts: 643
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Quote:
Originally Posted by grubbat
I have a low time io360 angle valve sittin in the corner of hanger and I was thinking about hanging it on the -9.
I'd also be interested if anyone else has tried it and what their feedback was.
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Go look at all of the 9As that have flipped.
All except one in Alaska on a gravel rutted runway had O-360's installed.... 
See post #3
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Dave & Trina
RV-9A Flying  - 330 Hrs. Painted  Finishing the interior.
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07-14-2014, 07:38 PM
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Join Date: May 2012
Location: Ga
Posts: 662
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-9
Yea, those nosewheel models with heavy engines do have a nasty record. However, I was specifically referring to the -9, which is the Tailwheel version. Also, post #3 doesn't speak to the original question.
Quote:
Originally Posted by MauiLvrs
Go look at all of the 9As that have flipped.
All except one in Alaska on a gravel rutted runway had O-360's installed.... 
See post #3
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__________________
Craig
RV-3 Sold
RV-4 Sold
RV-6a Sold
RV-9 IO-360 CS, Built and Flying
Aerostar 600A, Family Hotrod
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07-14-2014, 08:03 PM
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Join Date: Nov 2005
Location: Asheville, NC
Posts: 2,690
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Quote:
Originally Posted by grubbat
Also, post #3 doesn't speak to the original question.
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Huh? How does an article recommending against a 180 in a RV9 not apply to a 200 in a 9????
Of course, it is experimental and you may do as you wish. Do your passengers have the same choice and forewarning in the matter?
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Bill Pendergrass
ME/AE '82
RV-7A: Flying since April 15, 2012. 850 hrs
YIO-360-M1B, mags, CS, GRT EX and WS H1s & A/P, Navworx
Unpainted, polished....kinda'... Eyeballin' vinyl really hard.
Yeah. The boss got a Silhouette Cameo 4 Xmas 2019.
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07-14-2014, 08:32 PM
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Join Date: May 2012
Location: Ga
Posts: 662
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margins
Van owns the margins, I get that. And, I agree with it too.
That being said, it would be nice to hear from -9 owners who are running the 200hp deal. What's their feedback. It really is a simple question. Just trying to get feedback from those who have traveled this road.
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Craig
RV-3 Sold
RV-4 Sold
RV-6a Sold
RV-9 IO-360 CS, Built and Flying
Aerostar 600A, Family Hotrod
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07-15-2014, 05:25 AM
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Join Date: Jan 2010
Location: Tyler, Texas
Posts: 350
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"If you want 200HP -9, build up a parallel valve 360. They are easy to bump up to 200HP."
Very True. My Parrallel I-O360 with 9:5:1 Lycon Pistons pumped out 215HP on test
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RV 7
391RK Reserved
IO360 9:5:1 AFP
Slow Build
Last 90%
Tyler, Texas
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