Tag: Fuel Injection

Fuel injector bungs: http://www.rossmachineracing.com/injectorbungs.html

Fuel line: https://www.napaonline.com/

Just bought the Dodge Neon throttle body.

In talking with a few buddies, it seems that a late 80’s early 90’s Toyota Celica fuel pump will work for the pump. Haven’t found how much amperage it consumes yet. Hopefully it’s below 10 amps. Also a Dodge Neon throttle body is about 50mm which would be perfect for a single throttle body setup. Both these parts are dirt cheap online.

Another buddy said that he could probably get me in for some machine time to build some injector manifolds and the connecting plates for the throttle body (air cleaner and to split it to the two heads). That just about solves the two hardest parts of this project!

One of my buddies (Derek) also said I could borrow his MegaSquirt simulator board when it comes time to build my own MegaSquirt. I’m still debating if I’ll go with the MSI or MSII. There are benefits to both. I might go with the MSI because it’s cheaper.

For injectors, I’m thinking some sort of saturated injector because it is relatively low amperage (1.5 amps). However peak/hold injectors are a little more readily available… Also I’m having difficulty finding info on injector bung sizing.

PC800 re-measured: 36mm inner, 42mm outer.

V-Strom 1000: 45 mm throttle bodies

V-Strom 650: 39 mm throttle bodies (or are they 42mm TB’s? seems they are 39mm…)

Moto Guzzi Breva: 37 mm?

Kawasaki Vulcan VN1700: 42 mm? (note that this looks really nice because the connection between the engine and the throttle bodies can be removed and replaced with something different that I machine myself. downside is it’s fairly rare.)

Honda VT-1300: 38 mm (only one on the bike!?)

Honda VT-750 Phantom: 32mm (only one on the bike?!)

CAN AM 800 (2009 model) ATV with some sort of throttle body that might work…

Sportsman Polaris 800 or 850

Dodge Neon has a 50 mm TB.

Fuel Pump stuff:

Seems like just about any 80s Toyota or BMW fuel pump will work because they’re all external pumps. Like a Toyota Celica pump. You can get them on EBay for 45 bucks in the right flow rate.

Note: Derek Duncan has a MegaSquirt simulator I can borrow.

Need to find a proper tilt sensor for motorcycle fuel injection pumps.  Might be able to scavenge one off of a motorcycle harness.

Will have to decide between modifying the fuel tank to accept an internal pump or having an external pump after the existing pump (low pressure then high pressure pump) with a surge tank.  Also should put in an accumulator or something similar which can be done with a T off the fuel line past the high pressure pump and some rubber hose.

Looks like the V-Strom 650 throttle bodies have dual butterfly valves.

how to do IAC valve control with an MS-I http://www.msextra.com/doc/ms1extra/MS_Extra_Hardware_Manual.htm#Fidle