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  #1  
Old 10-10-2018, 11:41 AM
backcountry backcountry is offline
 
Join Date: Dec 2015
Location: Houston, Texas
Posts: 29
Default Rotax upgrade to fuel injection

Sometime back I heard thereís a company that supplies a fuel injection kit for existing Rotax carburetor engines. Iím not a fan of carburetors and especially dual ones - floats, balancing, dual controls, etc. itís kinda like having two engine tied to the same crankshaft.
Has anyone modified the carburetor engine to fuel injection on the RV-12?
Iím cautious but interested if itís ever proved to be successful.
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  #2  
Old 10-10-2018, 12:40 PM
TS Flightlines TS Flightlines is offline
 
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There is more to it than just changing carbs to FI---

Tom
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Tom Swearengen, TS Flightlines LLC
Teflon Hose Assemblies for Experimentals
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RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
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www.tsflightlines.com
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  #3  
Old 10-10-2018, 12:50 PM
Mark33 Mark33 is offline
 
Join Date: May 2010
Location: Baton Rouge, La.
Posts: 392
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Edge Performance offers an EFII system. It’s very similar to the current EFI/EFII systems that are currently being offered for our Lycoming based engines. After I’m finished building my current RV-7 project I’m planning on building a Rans S-7 backcountry/STOL airplane and it’ll definitely have an Edge Performance turbo/EFII. Like Tom said though, it’s more to it than than just changing to fuel injection....there’s also some plumbing involved which includes return lines. I’m not sure if the 12 has a header tank or not but if it does, it may simplify the plumbing a little bit.

https://www.edgeperformance.no

Mark

Last edited by Mark33 : 10-10-2018 at 12:55 PM.
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  #4  
Old 10-10-2018, 12:59 PM
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Mike S Mike S is offline
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Location: Dayton Airpark, NV A34
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VAF member and advertiser http://sdsefi.com/rotax.htm
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VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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  #5  
Old 10-10-2018, 01:01 PM
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rv6ejguy rv6ejguy is offline
 
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Location: Calgary, Canada
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We've been offering EFI systems for 912s for over 10 years and used to supply Edge with ECUs and other bits until they started to copy our parts without permission.

http://www.sdsefi.com/rotax.htm

You will need a return line to the tank and you'd have to check cowling clearance for the manifold and injectors. The manifold may interfere with other accessories We've done installations on several other airframes but never done an RV12 before. We would be interested in working with people who'd like to ditch the carbs. We have a couple of different manifold designs we could offer.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 424.4 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm



Last edited by rv6ejguy : 10-10-2018 at 01:44 PM.
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  #6  
Old 10-10-2018, 04:15 PM
TS Flightlines TS Flightlines is offline
 
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We've worked with Ross on several things. Very nice products. But---as i said, there is more to it than removing the carbs and putting an injector rail in place.

Tom
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Tom Swearengen, TS Flightlines LLC
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com
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  #7  
Old 10-10-2018, 04:33 PM
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rv6ejguy rv6ejguy is offline
 
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If there's some reasonable interest in an EFI conversion for RV-12s we'd be willing to produce custom parts to make a standard installation easier for everyone- the same as we've done for Lycoming, Continental, Jabiru, Rotax and several popular auto conversions for many years.

I don't see any show stoppers putting EFI on a -12.

We'd want to find the best location for the fuel pumps, fuel pressure regulator, have a solution for the return line, throttle cable brackets and develop an intake manifold which clears everything we need to clear.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 424.4 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #8  
Old 10-10-2018, 05:39 PM
TS Flightlines TS Flightlines is offline
 
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Excellent points Ross, which I was attempting to to across to Larry. Plumbing, wiring, ECU's, pumps, filters, etc all have to be planned and locations thought out. Similar to changing from a RV12 to a RV12IS---lots of differences!

Tom
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Tom Swearengen, TS Flightlines LLC
Teflon Hose Assemblies for Experimentals
Proud Vendor for RV1, Donator to VAF
RV7 Tail Kit Completed, Fuse started-Pay as I go Plan
Ridgeland, SC
www.tsflightlines.com
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  #9  
Old 10-10-2018, 05:56 PM
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rv6ejguy rv6ejguy is offline
 
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Quote:
Originally Posted by TS Flightlines View Post
Excellent points Ross, which I was attempting to to across to Larry. Plumbing, wiring, ECU's, pumps, filters, etc all have to be planned and locations thought out. Similar to changing from a RV12 to a RV12IS---lots of differences!

Tom
Yes and the best way to do all this is to standardize so it works the same for everyone and we can write better documentation for the install.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 424.4 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


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  #10  
Old 10-10-2018, 06:17 PM
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Piper J3 Piper J3 is offline
 
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Quote:
Originally Posted by rv6ejguy View Post
If there's some reasonable interest in an EFI conversion for RV-12s we'd be willing to produce custom parts to make a standard installation easier for everyone- the same as we've done for Lycoming, Continental, Jabiru, Rotax and several popular auto conversions for many years.

I don't see any show stoppers putting EFI on a -12.

We'd want to find the best location for the fuel pumps, fuel pressure regulator, have a solution for the return line, throttle cable brackets and develop an intake manifold which clears everything we need to clear.
What would an EFI system cost for 912ULS conversion? Might as well start there to gage interest...
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Jim Stricker
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EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 406

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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