Aftermarket FI with Single Throttle Body, getting started ... Options

[SirAndy]

sooooo, as some of you might know, i have been tinkering with the idea of putting a FI system on my hot cammed 2056 that utilizes a single throttle body and long intake runners (similar to the stock D-Jet setup).

the idea is that long runners promote more low end tourque (gud for AX) and the single throttle body makes tuning *much* easier ...

the initial idea was to reproduce the stock 2.0L runners with a larger OD for the bigger displacement engine plus a bigger size (volume) plenum.

this proved somewhat difficult and the quotes i got for fabbing such runners where in the $1500 - $2000 range for a "test" set. (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif)

so i consulted a pro, and we came up with a slightly changed attack plan:

- short carb intake manifolds with welded on injector bungs
- cylindrical plenum on top of the manifolds on each side
- horizontal runners to a single center plenum
- single throttlebody

all sizes/volumes/length/dia. has been worked out to fit engines from ~2056 to ~2270, for bigger engines sizes would have to be changed ...

well, so far, the short carb intake manifolds with welded on injector bungs have been finished and they turned out great.
i hope the rest will follow soon (mostly held up by $$$ at this point)

attached are a few pics of the intakes and a schema of what the complete system will look like ...
(IMG:http://www.914world.com/bbs2/html/emoticons/welder.gif) Andy


the manifold with the injector bungs welded on:
(IMG:http://www.914world.com/bbs2/uploads/post-11-1124689756.jpg)

injector angle, pretty much a straight shot at the valve:
(IMG:http://www.914world.com/bbs2/uploads/post-11-1124689795.jpg)

closeup of the bung:
(IMG:http://www.914world.com/bbs2/uploads/post-11-1124689837.jpg)

quick photoshop mockup of the layout:
(IMG:http://www.914world.com/bbs2/uploads/post-11-1124689719.jpg)