efi Fuel injection project

[MAD02]

First of all,  I apologize for the awful pictures. 

 

A few weeks ago I converted my BMW from a Weber carburetor to a Volvo  Bosch LH 2.2 fuel injection using 02 Coasties excellent post.

 

 So far,  the car has been running great,  but I admit one thing.  I hate the looks of the E30 318i intake manifold.  I wanted something more period correct and today at the junkyard in got lucky. 

 

I picked up an early 320i intake manifold similar to the tii manifold, but needed to do something about the injectors. A couple weeks ago,  I picked up a spider injection unit from a 2004 Chevy Astro van with the 4.3 Vortec V6, with the sole purpose of using the injectors and fuel distributor for another project.  

 

The spider injection unit looks like this 

 

It uses the fuel distributor to pass fuel to the individual injectors via high pressure plastic line.  This was an improvement over the original units that used poppet valves which would regularly foul up. 

 

This is what the spider injector looks like next to an early 320i mechanical injector

 

From everything I've found online about these injectors, they are 19lb high impendence and should work with the Bosch ecu.  They are also(almost) an exact fit into the injector hole on the intake manifold.  

 

 

The fuel distributor has everything built in to it,  including a fuel pressure regulator.  So the plan is to mount the unit somewhere and use the high pressure plastic line to feed the individual injectors,  thus not needing to run a fuel rail, which wouldn't fit under the intake runners without modification.  

 

I plan on moving along with this project in the next few weeks,  and will keep everyone posted on what I find or if it actually works. If it does,  I will have period looks and a kinda lol modern and reliable fuel injection system. 

 

 The only thing I have to do now is adapt an E30 325i throttle body to the intake manifold.  That is going to be the most difficult thing to do.  

 

Thanks for your time!  

 

 

[m42002]

Interesting. Looking forward to seeing your progress.

We always need another option!

[jimk]

8 hours ago, MAD02 said:

The only thing I have to do now is adapt an E30 325i throttle body to the intake manifold.

Any TB that fits will work .

[TobyB]

That's kind of cool, that injector-wad-thingy.  Noted- I have a few early E21 manifolds, and always wanted to try to do something with them...

 

t