Inglese EZ-EFI setup

[CzyCobra]

Hi all, I'm brand new to the world of Cobras so bare with me...

I just purchased a SPF with a crate Roush 351w/427SR block, I'm 100% sure that I'll be building a new motor in the future but for now I want to get rid of the carb and switch to a fuel injection system.

Ok heres the question... Is the 8 Stack injector system only for the "old" look. Ive been reading and looking around and the FAST EZ 2.0 system comes with a bolt on 8 throttle bodie system of its own, is something wrong with the full FAST EZ 2.0 set up other than the lack of cool factor look that the 8 Stack set up brings to the party?

[bobcowan]

Originally Posted by CzyCobra

Ok heres the question... Is the 8 Stack injector system only for the "old" look. Ive been reading and looking around and the FAST EZ 2.0 system comes with a bolt on 8 throttle bodie system of its own, is something wrong with the full FAST EZ 2.0 set up other than the lack of cool factor look that the 8 Stack set up brings to the party?

The 8 stack system if for anybody who likes the look; old or new, big block or small. It's your car, do what makes you happy.

8 stack systems can be a bit tricky to set up. And they can be a bit difficult to learn how to tune them. Once you figure that out, they're a real joy to drive. The Individual Runner (IR) systems tend to make a really flat torque curve. And the look is just killer; especially the billit versions.

The basic EZ 2.0 set up uses a central throttle body and port injection. That's a good system that's very easy to install, tune, and drive. The large central plenum is very forgiving. Not stunning to look at, but very user friendly.

An engine needs to be set up right from the beginning to use an IR system. The valves cannot be much bigger than the throttle bodies. If you have 50mm TB's and 2.08" valves, you'll lose all your intake charge velocity and all your low end power. Keep the valves a bit on the small side (by today's standards).

You can use any cam you want, and it will run and make good power. BUT, cams with short LSA's and a lot of overlap are not very friendly to IR systems. Take a look at the cams available from the Inglese web site - 115* LSA, and short duration.

Because of available equipment, these 8 stack systems can limit your ultimate top end power. But that's with big power, like 650-700HP plus. The problem is not the IR system, it's just that nobody make TB's >55mm; not that I could find, anyway.

My TB's are 52mm (2.05"), and the intake valves are 2.02". I tried a set of Brodiox heads with 2.08" valves. Lost all my low end power. I have considered finding a set of heads with 2.05" intake valves, just to see what would happen.