VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #1  
Old 03-13-2021, 01:33 PM
flyboykelly's Avatar
flyboykelly flyboykelly is offline
 
Join Date: Jun 2006
Location: Port Orange, FL (7FL6)
Posts: 294
Default Radial powered RV-8R V2.0

Hey everyone. I am in the process of changing engines on the RV-8R to the Verner 9S. I put my Facebook page back up and will be updating the new installation as I go along. give me a few days and I will get more images up on the page.

https://www.facebook.com/Radial-Conv...08038188028245
__________________
Flying as of 1-12-2016!!!!!
Reply With Quote
  #2  
Old 03-13-2021, 01:44 PM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 4,750
Default

Why are you changing engines?

Lots of us aren't on Facebook, by the way... VAF's Build section is also available.

Dave
Reply With Quote
  #3  
Old 03-13-2021, 01:58 PM
pazmanyflyer's Avatar
pazmanyflyer pazmanyflyer is online now
 
Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,059
Default

Quote:
Originally Posted by David Paule View Post
Why are you changing engines?

Dave
He states HP increase.
__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF

"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
Reply With Quote
  #4  
Old 03-13-2021, 03:02 PM
flyboykelly's Avatar
flyboykelly flyboykelly is offline
 
Join Date: Jun 2006
Location: Port Orange, FL (7FL6)
Posts: 294
Default

Quote:
Originally Posted by David Paule View Post
Why are you changing engines?

Lots of us aren't on Facebook, by the way... VAF's Build section is also available.

Dave
The new engine is around 20 more hp from what Ive seen with other builders. Also it is a simpler engine with no gear reduction. This was always in the back of my mind since i was running a heavier constant speed prop. As far as pictures of the installation goes, Ill only be posting those on Facebook at this time. If others want to post the pictures on this forum then they are more than welcome to.
__________________
Flying as of 1-12-2016!!!!!
Reply With Quote
  #5  
Old 03-13-2021, 09:13 PM
Captain Avgas Captain Avgas is offline
 
Join Date: Oct 2005
Location: Melbourne, Australia
Posts: 1,941
Default

Quote:
Originally Posted by flyboykelly View Post
The new engine is around 20 more hp from what I’ve seen with other builders.
Interesting move. The Rotec R3600 is rated at 150 HP and the Verner 9S at 158 HP. It seems like a lot of trouble and expense changing out engines to gain a nominal 8 HP. Are you disappointed with the Rotec for other reasons?
__________________
Youre only as good as your last landing
Bob Barrow
RV7A

Last edited by Captain Avgas : 03-13-2021 at 09:31 PM.
Reply With Quote
  #6  
Old 03-13-2021, 09:48 PM
flyboykelly's Avatar
flyboykelly flyboykelly is offline
 
Join Date: Jun 2006
Location: Port Orange, FL (7FL6)
Posts: 294
Default

Quote:
Originally Posted by Captain Avgas View Post
Interesting move. The Rotec R3600 is rated at 150 HP and the Verner 9S at 158 HP. It seems like a lot of trouble and expense changing out engines to gain a nominal 8 HP. Are you disappointed with the Rotec for other reasons?
The advertised HP on a Rotec is 150, in reality it's more like 135. The Verner is Dyno tested to 158 HP. Other than that I've had no other problems with the Rotec.
__________________
Flying as of 1-12-2016!!!!!

Last edited by flyboykelly : 03-13-2021 at 09:53 PM.
Reply With Quote
  #7  
Old 03-14-2021, 06:58 AM
D Weisgerber's Avatar
D Weisgerber D Weisgerber is offline
 
Join Date: Sep 2019
Location: Ionia Michigan
Posts: 243
Default

I'm building an RV8 now, I'm putting a Lycoming in it. I always liked your airplane, this is whats great about Experimental airplanes. I"m following you on Facebook now.
__________________
RV6 N7219d
IO-320-B1A
Sam James cowl
first flight May 2, 1997
RV8 #83830 tail done, wing done, fuselage done.
Working on the finish kit.
Reply With Quote
  #8  
Old 03-14-2021, 07:25 AM
flyboykelly's Avatar
flyboykelly flyboykelly is offline
 
Join Date: Jun 2006
Location: Port Orange, FL (7FL6)
Posts: 294
Default

Quote:
Originally Posted by D Weisgerber View Post
I'm building an RV8 now, I'm putting a Lycoming in it. I always liked your airplane, this is whats great about Experimental airplanes. I"m following you on Facebook now.
Thank you for the kind words!
__________________
Flying as of 1-12-2016!!!!!
Reply With Quote
  #9  
Old 03-14-2021, 07:54 AM
ronschreck's Avatar
ronschreck ronschreck is offline
 
Join Date: Mar 2006
Location: Gilbert, AZ
Posts: 1,666
Default Rotec R3600 vs. Verner 9S

I'm going to follow Brian on Facebook. Wouldn't want to miss out on this conversion. (I thought this was the way to go in the first place but I won't say I told you so!)


Rotec 3600

Designers Matthew & Paul Chernikeeff
Configuration Nine Cylinder Four Stroke
Capacity 3600 cc (220 ci)
Total Diameter 840 mm (33.1 )
Dry Weight 120 kg (265 lbs)
Propeller/ RPM Large 80 90 Diameter x 55
Pitch @ 2,450 rpm
Ignition / Type Dual, electronic and magneto
Carburettor TBI-40-S / Bing Mixture Control
Lubrication Geared Oil Pressure and Scavenge Pump
Bore/ Stroke (3.15 ) 80 mm x 80 mm
Heads Two Overhead Valves,
Push Rod Operated
Spark Plugs Two per Head (NGK DCPR8E)
Starter Electric Auto Type 12 Volt
Charging System 45 Amp Alternator
Fuel Consumption Avgas 100LL 28 liters
(7.4 gallons) @ 75% Power
Rated Power 150 hp @ 2450 Prop RPM (Via 3:2 PSRU)







Verner 9S

Displacement 6094 cc / 372 cubic inch
Pistons 9
Cooled by Air
Bore 92 mm
Stroke 102 mm
Compression ratio 1:7,8
Maximum power 158 BHP (116 KW) @ 2400 RPM
Max. continuous power 136 BMP (100 kW) @ 2300 RPM
Torque 485 Nm @ 2000 RPM
Propeller rotation CCW, viewed from the front (tractor propeller)
Complete dry weight 108kg
Spark plugs Champion RN12YC, Denso Q20PR-U
Electric starter 12V / 1000W
Generator (Alternator) 12V / 336W
Lubrication Philips X/C Aviation SAE 25W60; Total 20W60
Fuel Motor petrol, octane number 95
Carburetor Marvel; S&S
Reduction drive None
Propeller hub ∅111,12 x 6 x 16 holes - M8 (3/8 24 UNF) SAE 1
Max propeller 220
Installation Back
Recommended TBO 1000 hours
Batteries 12V 24Ah

__________________
Ron Schreck
IAC National Judge
RV-8, "Miss Izzy", 2250 Hours - Sold
CAF B-25 - Airbase Arizona
VAF 2021 Donor
Reply With Quote
  #10  
Old 03-14-2021, 08:06 AM
flyboykelly's Avatar
flyboykelly flyboykelly is offline
 
Join Date: Jun 2006
Location: Port Orange, FL (7FL6)
Posts: 294
Default

Quote:
Originally Posted by ronschreck View Post
[color="Blue"]I'm going to follow Brian on Facebook. Wouldn't want to miss out on this conversion. (I thought this was the way to go in the first place but I won't say I told you so!
Actually saying "I told you so" wouldn't work to well as the Verner 9S wasn't in existence until I was already flying with the Rotec. The R-3600 was the only option at the time. Steve Wolf was the first 9S to fly on his Samson Mite. I was very critical of the Verner early on, and am still critical of a few items, but we are working through those things. One thing that I have learned from all of this is to be critical early, question everything, and never take things at face value. This will be a good conversion when done and I am very excited to be working with Verner and Scale birds on a safe installation.
__________________
Flying as of 1-12-2016!!!!!
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 02:13 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.