From: "Charlie England ceengland7@gmail.com" <flyrotary@lancaironline.net>
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To: flyrotary <flyrotary@lancaironline.net>
Subject: new option for injection pumps
Message-ID: <4c735752-586c-336d-5a8d-2b27d04ced84@gmail.com>
Date: Fri, 15 Feb 2019 18:38:14 -0600
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Hi guys,

One of the things that drove me to add a 2nd alternator to my install is 
the relatively high current draw of the 'standard' Walbro GSL393 fuel 
pump (around 6A). I looked at using the little turbine pumps (around 
3--4A), but they must be inside the tank(s) since they cannot self prime.

Over on the VAF (RV-x) forum, there's a guy who's using the typical 
Bendix style injection on his Lyc, but wants to eliminate the engine 
driven pump. He's also (drastically) over- (and incorrectly) thinking 
that what's already available isn't safe, so he's embarked on his own 
research. Fortuitously, he turned up something that could be useful to 
us. Turns out that Walbro makes a smaller gerotor pump, that can supply 
30 GPH (instead of 60), and only draws around 2.5A. Model is GSL414; a 
bit harder to find, but roughly the same $ as the 393. If I hadn't 
already done the alternator work and bought the pumps, I'd be giving 
this a serious look.

Here's his testing thread, if anyone's interested.

http://www.vansairforce.com/community/showthread.php?t=168793

Charlie


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