I've started work on the EFI conversion of this Edelbrock tunnel ram lower intake. It is going to take quite a bit of work; it's an off center, carbureted intake that I'm going to turn into a on-center, twin plenum, twin throttle body, EFI intake.
I've started work on the EFI conversion of this Edelbrock tunnel ram
lower intake. It is going to take quite a bit of work; it's an off
center, carbureted intake that I'm going to turn into a on-center,
twin plenum, twin throttle body, EFI intake.
I got some work done on the intake; I machined the old bolt bosses off the top and welded the 2" extension to the top. I also drilled one side for the injector bosses. I have them angled inward at about a 20 degree angle due to the nearly vertical intake runners; there's almost no way to angle them down the port. Here are a few more pictures of the work so far.
Here are the earliest pictures of the intake:
To start, I've bolted the block and heads that the intake is going on together.
Then, I put intake gaskets in place and began shifting the intake back
and forth to try and determine the "minimum mismatch" possible. Since
the intake had never been used or ported it looks like moving the ports
for the on-center configuration will work nicely!
These pictures show the bolt and port mismatch from the off-center intake to the on-center block.
These pictures show the large amount of material removal required to match
the head ports. The head bolts holes will have to be slotted as well.
I'll have more pictures soon when the fabrication work is a little further
along. The sheet aluminum piece visible on top of the intake in a couple of the
pictures is my first shot at the extended plenum sides; I'm going to add
about 2" to the height. I'll add more detail on the split plenum/twin
throttle body parts as it gets further along...think "Helmholtz".
