Author Topic: Aux Fuel Cell Question  (Read 932 times)

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Offline Richard_Terry_TX

  • Tricycle
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Aux Fuel Cell Question
« on: September 03, 2011, 04:27:35 pm »
I am thinking through adding an aux fuel cell and have a few questions that I can't seem to find answers to.

2010 CA model C14. System will have a gravity fed fuel system that sits on the pillion seat area. Would most likely connect the via a 3/8 hose from aux to main. option 1) tap the main tank or option 2) T into a FI return line. option two might be easier but the line size (1/4) and fuel pressure (I think) might require the use of a pump, something that can malfunction. So option 1 seems to be the best.

Ok so with a gravity feed from 3/8 line to the main, the volume of fuel into the main is limited by the amount of air that can exit the main tank. Does the CA emissions recovery hinder the flow of aux fuel into the main? My brain says 3/8 gas in needs 3/8 air out of a sealed tank (and also the aux tank which will most likely be a custon fab type). Am not sure if the emissions stuff is really a limiting factor and if so I'd just remove it since I don't really live in CA. And If I did remove it is there any real gain since all the venting looks to be 1/4 inch.

What am I missing with all this ?




Offline Ichiban

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Re: Aux Fuel Cell Question
« Reply #1 on: September 14, 2011, 03:45:41 pm »
I have a aux fuel cell on my 2008. I did not tap into the FI line. Since the system is pressurized I did not want to jeopardize any leaks. I plumbed a hole at the bottom of the main. I use an RCI fuel cell that I purchased from Summit Racing. Through a fuel pump that I bought at Napa Auto parts with a lighted switch. My 3/8 input transfer fuel rate can push air out of the 1/4 vent just fine.
Robert B.
IBA#4168