ITB project, Honda VFR 800 ITBs Options

[kevin311]

I've been running Megasquirt II for a while now on my 71 1.7 with the stock D-jet components and it has been running well. But everything is looking tired in the engine bay and I am planning on taking out the engine to clean everything up and install SS fuel lines.

Then I remembered seeing a video youtube with an australian guy reviewing his 914 and he mentioned having GSXR ITBs on his car. Sounds like a fun project to me so I started researching and think I have found an even better solution.

The throttle bodies I found are from a 2001 Honda VFR800. The bike is a V4 so the TBs and fuel rails are already split into pairs, and have a linkage that connects both. They have 37mm throats, and came with the throttle position sensor, fuel pressure regulator , injectors and and all the wiring and connectors. Also the brackets on the sides already have a tab for throttle cable.

The injectors are high impedance so I wont have to run PWM on Megasquirt anymore and hopefully can get an even finer tune.
I'm also thinking about switching the PCs for 96mm, but I think that will wait until later, but you never know this started out as an engine cleaning...

The only things I need to figure out are the flow rate of the injectors, where I'm going to hook up the IAT sensor, and will need to build a vacuum plenum. Also these injectors run at 36 psi, can the stock fuel pump handle that or do I need to look for another solution?

Here are some pics, check out how close the spacing is for weber manifolds.
Please excuse the dirt. I still haven't cleaned them up.

This is gonna be fun. (IMG:style_emoticons/default/beerchug.gif)

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[914werke]

I had similar thoughts about the throttles when I started this project but I figured it couldn't be worse than weber 40s and I've seen those on smaller engines than mine.
So I figured what the heck, why not. I'm running megasquirt and it would be very easy to switch everything back. I think I'm into this about under $100 so it's worth it even if it doesn't wor, just for the fun/experience.
The Harley flanges are surprisingly stout. The rubber is at around 1/4 of an inch thick and the bases are reinforced. I think it should be okay but have plans for brackets if needed.
Thanks (IMG:style_emoticons/default/beerchug.gif)
Kevin

(IMG:style_emoticons/default/aktion035.gif) Im following this.
& Kevin if you ever get to a place where you decide to pull it & go back, look me up..
Ive been toying with the idea of applying that 800FI kit to my 97VFR750F (IMG:style_emoticons/default/smile.gif)