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10-23-2006, 03:15 PM
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Join Date: Jan 2005
Location: KS
Posts: 57
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Vertical Draft Fuel Injection
These Questions probably border on really stupid, but here goes...
I have a fuel injected IO-360, but the sump is vertical like a carb, not the forward facing one.
1. Electric Fuel Boost Pump... which one do i need and where do i get it! (Superior io-360, precision fuel injection (bendix clone?))
2. How do i determine cable length for Throttle and Mixture? Anyone have the numbers for this install?
__________________
Jonathan Cude
EAA 980 Fearless President
Mechanical and Aerospace Engineer
SedanFloral.com
RV-7A :: Penn Yan XS-IO-360 :: Tip-Up :: SkyView
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10-23-2006, 04:31 PM
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Join Date: Jul 2005
Location: Detroit, MI
Posts: 1,587
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What I did
Mine is also the Superior IO-360 XP Plus with vertical induction, kind of like a carb. I used the FI fuel pump from Van's. There are, I hear, other options, but this one at least came from a known source with some documentation. I installed it where Van's says to - immediately forward of the fuel selector. I then installed the fuel-flow sensor for my GRT between that and the firewall, went through the firewall where the carburetor version would have come out. I also then turned right along the firewall and installed the Andair gascolator, then looped back to the engine driven fuel pump with Van's rubber hose. There are certainly other ways to do all this, this is just information for you.
My throttle cable was OK. My mixture cable needed to be longer, but I goofed and got it a little too long. The good news is that you can cope with a little extra, but not a little to little. If you have manual trim, you will have to cope with the need for a longer trimcable (as in -8) or else, as I did, come up through the plumbing of the pump. Feel free to write directly if this is too confusing or if you have other questions. I'm not an expert, but I did survive this issue and am now in Phase 2.
__________________
H. Evan's RV-7A N17HH 240+ hours
"We can lift ourselves out of ignorance, we can find ourselves as creatures of excellence and intelligence and skill. We can be free! We can learn to fly!" -J.L. Seagull
Paid $25.00 "dues" net of PayPal cost for 2015, 2016, 2017 and 2018 (December).
This airplane is for sale: see website. my website
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11-03-2006, 07:01 AM
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Join Date: Jan 2005
Location: Highland, IL
Posts: 271
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I found that I needed a 50.5 inch throttle and mixture cable (both) for this set up. If you look at Van's catalog close enough, you will see that for the IO engine that is what's required. I found out the hard way and had to reorder.
Larry
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11-03-2006, 11:22 PM
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Join Date: Mar 2005
Location: ...
Posts: 2,049
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Quote:
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Originally Posted by Jonathan Cude
2. How do i determine cable length for Throttle and Mixture? Anyone have the numbers for this install?
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FWIW, I think I used 1/4" plastic tubing to "simulate" a cable run. Measured it out, and that was my custom cable length right there.
__________________
Dan Checkoway RV-7
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11-08-2006, 05:42 AM
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Join Date: Feb 2006
Location: Sierra Vista, AZ
Posts: 77
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I had a couple of other issues I had besides all of the above. One was the length of the mixture control arm. There wasn't enough travel in the cable from Van's to get full rich and idle cut off. I drilled a new hole to shorten the length of the arm. Also I needed to fabricate a spacer to lower and align the FAB to the cowl air inlet. I can send pictures of my installation if you want.
Neil
RV-7 N748M
AEIO-360 B1B
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11-08-2006, 05:43 AM
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Join Date: Feb 2006
Location: Sierra Vista, AZ
Posts: 77
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I had a couple of other issues besides all of the above. One was the length of the mixture control arm. There wasn't enough travel in the cable from Van's to get full rich and idle cut off. I drilled a new hole to shorten the length of the arm. Also I needed to fabricate a spacer to lower and align the FAB to the cowl air inlet. I can send pictures of my installation if you want.
Neil
RV-7 N748M
AEIO-360 B1B
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11-08-2006, 03:35 PM
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Join Date: Aug 2006
Location: santa barbara, CA
Posts: 1,682
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I have the vertical induction on my io-360 as well. For one more data point, my answer is virtually identical to the one provided by "Hevansrv7a" above. I however, did not install a gascolator. Most people with FI do not have one, although that is not to say its a bad thing.
erich weaver
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01-14-2007, 06:18 PM
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Yes, please..
Quote:
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Originally Posted by NeilMcLeod
I had a couple of other issues I had besides all of the above. One was the length of the mixture control arm. There wasn't enough travel in the cable from Van's to get full rich and idle cut off. I drilled a new hole to shorten the length of the arm. Also I needed to fabricate a spacer to lower and align the FAB to the cowl air inlet. I can send pictures of my installation if you want.
Neil
RV-7 N748M
AEIO-360 B1B
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Can you post a few pictures of your servo/airbox installation here? I have fabricated several spacers, but I'm trying to figure out what I want to do. I have to use a 1.5-1.75" spacer to get the airbox low enough to align with my cowl air inlet.
I'm trying to decide whether to use all that much spacer, or go with a 1" spacer and fabricate an inlet duct out of fiberglass that curves up to meet the FAB.
Thanks.
-Geoff
RV-8
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01-15-2007, 04:08 PM
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Join Date: Jan 2005
Location: ATL
Posts: 734
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Are you using the Sam James cowl or the stock cowl? If you are using the stock cowl, you probably don't need the spacer at all. The spacer is intended to make the height of the fuel servo the same as the carb. But you really don't need it...therefore you can do away with the upward bend of the airbox top plate.
Here is a picture of my setup (taken during construction):

Last edited by Scott Will : 01-15-2007 at 04:12 PM.
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01-15-2007, 04:28 PM
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Join Date: Jul 2005
Location: Detroit, MI
Posts: 1,587
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It's an insulator, also
Quote:
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Originally Posted by Scott Will
Are you using the Sam James cowl or the stock cowl? If you are using the stock cowl, you probably don't need the spacer at all. The spacer is intended to make the height of the fuel servo the same as the carb. But you really don't need it...therefore you can do away with the upward bend of the airbox top plate....
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I had a conversation with Superior about the spacer. They say it is an insulator. They couldn't say what happens without it, but it's there to keep the TB cooler, not only for dimension adjustment. Just FYI.
__________________
H. Evan's RV-7A N17HH 240+ hours
"We can lift ourselves out of ignorance, we can find ourselves as creatures of excellence and intelligence and skill. We can be free! We can learn to fly!" -J.L. Seagull
Paid $25.00 "dues" net of PayPal cost for 2015, 2016, 2017 and 2018 (December).
This airplane is for sale: see website. my website
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