Cheap Fuel Injection

[Bugger]

I just got a bug, and decided to go fuel injection instead of getting larger carbs etc.

Throttle Body - I was having a hard time deciding between going with 4 throttle bodies all interconected and one throttle body. The place I would get 4 is from motorcycles, the newer motorcycles have 4 throttle bodied that are interconnected but seperable, so I could put 2 on each side. I decided to just go with one throttle body for simplicity and the adding of a turbo later. I am going to get the throttle body from a honda civic, or accord, or something similar, because they are super common and relatively close engine size, also they have many aftermarket large bore setups incase I want something larger later. I plan on using 2 1/4 inch mandrel bent tubing to connect the throttle body to the end castings, I will use silicone redcers in to get it to go down to the size of the end castings.

Injectors - I am going to use injectors from a ford that has the 19lb injectors, because they are easily available and seem like they would work good and they can also be easily upgraded in the future. I am not completely set on this, I might just get the injectors from a honda as well, although there is not a lot of difference between differnent injectors in the physical size. I plan on welding injector bungs into a stock set of end castings, they should support the kind of horsepower I am looking for which is around 110 after turbo.

Sensors - I plan on getting temp sensors from gm cars, because they seem to be easier to adapt to the computer system I want to use. I will however use the temp sensor that is included in the throttle body until I go turbo. I will look for a heated oxygen sensor.

Computer - I plan on using megasquirt 2, so it can control the spark as well as the fuel, it can control the advance and everything, so I could use a stock distributor and lock down the stock advance, so all can be controlled by the computer. It will be pretty sweet.

Let me know what you think, I have started to collect some of the parts already, so we will see how it goes. I would like to have it all done in the christmas break, because I will have a lot of extra time then. The goal is to have fuel injection for under $500, hopefully it works out.