Tag: Fuel Injection

It appears that a Honda CBR1000RR 08-09 or a CBR600RR 07-09 pump might be the ticket for me. It isn’t an external pump but I could fab up something to put it in as a secondary tank. The unit is nice, small, compact, designed to put out 50psi, appears to have a built-in pressure regulator so that it’s already regulated when it leaves the pump thus negating any need for a return line, and has a low fuel warning sensor that I am sure I could find use for.

The CBR1000RR pump puts out about 1200 cc/min while the CBR600RR pump puts out 1000 cc/min. Both are above the 600cc/min that my bike’s existing pump is rated for. I wonder if the 600RR pump would consume less amps than the 1000RR pump. Both are priced about the same on EBay. The less power consumed, the better for my bike. The PC is already underpowered as it is. I need to be careful not to use up all the juice I rely on to have heated socks in the winter!

Rather than weld in a special bung, I might be able to get away with drilling out a hole and holding the bung in place using a muffler/exhaust pipe patch along these lines: https://www.caswellplating.com/

Prod 80333
Prod 80334
Prod 80335

Something like that looks VERY promising. And I could do it at home!

A bung like this https://www.diyautotune.com/product/innovate-motorsports-extended-o2-sensor-bung-3764/ or like this https://www.diyautotune.com/product/mild-steel-18×1-5-thread-bung-and-plug-kit-3735/ should be prefect for the O2 sensor.

Another option is a rivnut http://pc800archive.douglasvanbossuyt.com/message.php?message_id=100103

Still need to do research and select a proper wide-band O2 sensor… Looks like I’ll need to go for something along these lines: Yes, I’m willing to pay an extra $50 for a gauge to put on my dash 😛 Not sure if I want an analogue one or a digital one though. I’m favoring the analog gauge.

Trying to find an external fuel pump that is high pressure and under 10 amps is a real pain. It also needs to be able to pull a little bit of a vacuum as the pump will be just at the bottom of the tank but can’t be below it. That’s pretty much impossible to find used. My best options so far are a very early 80’s Toyota pump that doesn’t go up to a high enough pressure. Or a Ford F150/Econoline pump from 87-89 that is big enough but might need a low pressure feeder to it and probably takes too many amps.

There are several Carter and Bosch pumps that could work. Also a Delco pump. Details are here http://www.megamanual.com/v22manual/minj.htm about 3/4 of the way down the page in the fuel pump section. Not sure if they all need to have some pressure going into them or not. The local wrecker might have a few of those types of cars that I could pull pumps from. It would also allow me to see if I can have the pump mounted above the fuel source or not.

Putting an in-tank pump in isn’t much of an option because I really REALLY don’t want to have to modify the PC800 tank. That would require some significant work to get the tank out and then modify it. I want this entire modification to be as minimally invasive as possible.