flyboy said:
The drawbacks would be 4 more injectors, a new fuel rail, fuel system wyes, new injector bosses in the manifold and a regulator that handles 2 inputs.
I reserve judgement on the controller and its transition point until I get to tune such a system. I would imagine the transition wouldn't be smooth. The controller likely doesn't adjust for air temp and such, making it a one-season controller.
Since modern EMSes can now control HUGE injectors, there's little reason to go the staged injection route. New injectors/pump, an EMS and you are for the most part, done.
Good answer. Although you wouldn't necessarily have FOUR more injectors; Greddy's old IC kit had piping that had only two bungs, so you would have used one or two big injectors instead of four.
So that is probably another downside - improper enrichment due to the somewhat random amounts of additional fuel that goes tumbling through the throttle body on its way to the individual combustion chambers.
Of course, that's exactly how my water injection system is set up, and I would assume most other people's as well - is anyone running a water injection system with four individual sprayers, going directly into all four cylinders?
I doubt it. I know, proper fuel metering is a lot more crucial than water injection, esp. seeing as how my water doesn't even turn on until around 14 psi.
I'm just talking in circles now. Ignore me.
flyboy, in case you're up early on a Sunday, have nothing planned for Superbowl, I was thinking about going for a quick drive up to Estes Park in the MR2 to test the car. Call me if you're interested in coming along.
